bpo-42128: Structural Pattern Matching (PEP 634) (GH-22917)

Co-authored-by: Guido van Rossum <guido@python.org>
Co-authored-by: Talin <viridia@gmail.com>
Co-authored-by: Pablo Galindo <pablogsal@gmail.com>

43 files changed, 9704 insertions, 1444 deletions

diff --git a/Doc/library/dis.rst b/Doc/library/dis.rst
index dad8369..c21a667 100644
--- a/Doc/library/dis.rst
+++ b/Doc/library/dis.rst
@@ -752,6 +752,49 @@ iterations of the loop.
    .. versionadded:: 3.2
 
 
+.. opcode:: COPY_DICT_WITHOUT_KEYS
+
+   TOS is a tuple of mapping keys, and TOS1 is the match subject.  Replace TOS
+   with a :class:`dict` formed from the items of TOS1, but without any of the
+   keys in TOS.
+
+   .. versionadded:: 3.10
+
+
+.. opcode:: GET_LEN
+
+   Push ``len(TOS)`` onto the stack.
+
+   .. versionadded:: 3.10
+
+
+.. opcode:: MATCH_MAPPING
+
+   If TOS is an instance of :class:`collections.abc.Mapping`, push ``True`` onto
+   the stack.  Otherwise, push ``False``.
+
+   .. versionadded:: 3.10
+
+
+.. opcode:: MATCH_SEQUENCE
+
+   If TOS is an instance of :class:`collections.abc.Sequence` and is *not* an
+   instance of :class:`str`/:class:`bytes`/:class:`bytearray`, push ``True``
+   onto the stack.  Otherwise, push ``False``.
+
+   .. versionadded:: 3.10
+
+
+.. opcode:: MATCH_KEYS
+
+   TOS is a tuple of mapping keys, and TOS1 is the match subject.  If TOS1
+   contains all of the keys in TOS, push a :class:`tuple` containing the
+   corresponding values, followed by ``True``. Otherwise, push ``None``,
+   followed by ``False``.
+
+   .. versionadded:: 3.10
+
+
 All of the following opcodes use their arguments.
 
 .. opcode:: STORE_NAME (namei)
@@ -1192,6 +1235,19 @@ All of the following opcodes use their arguments.
    .. versionadded:: 3.6
 
 
+.. opcode:: MATCH_CLASS (count)
+
+   TOS is a tuple of keyword attribute names, TOS1 is the class being matched
+   against, and TOS2 is the match subject.  *count* is the number of positional
+   sub-patterns.
+
+   Pop TOS.  If TOS2 is an instance of TOS1 and has the positional and keyword
+   attributes required by *count* and TOS, set TOS to ``True`` and TOS1 to a
+   tuple of extracted attributes.  Otherwise, set TOS to ``False``.
+
+   .. versionadded:: 3.10
+
+
 .. opcode:: HAVE_ARGUMENT
 
    This is not really an opcode.  It identifies the dividing line between
diff --git a/Doc/tools/susp-ignored.csv b/Doc/tools/susp-ignored.csv
index fd27ab5..4dae6b6 100644
--- a/Doc/tools/susp-ignored.csv
+++ b/Doc/tools/susp-ignored.csv
@@ -365,3 +365,4 @@ whatsnew/changelog,,::,default::DeprecationWarning
 library/importlib.metadata,,:main,"EntryPoint(name='wheel', value='wheel.cli:main', group='console_scripts')"
 library/importlib.metadata,,`,loading the metadata for packages for the indicated ``context``.
 library/re,,`,"`"
+library/dis,,:TOS1,TOS[x:TOS1 - 1 - y]
diff --git a/Grammar/python.gram b/Grammar/python.gram
index bb70bbb..a225664 100644
--- a/Grammar/python.gram
+++ b/Grammar/python.gram
@@ -85,6 +85,7 @@ compound_stmt[stmt_ty]:
     | &('for' | ASYNC) for_stmt
     | &'try' try_stmt
     | &'while' while_stmt
+    | match_stmt
 
 # NOTE: annotated_rhs may start with 'yield'; yield_expr must start with 'yield'
 assignment[stmt_ty]:
@@ -207,6 +208,114 @@ except_block[excepthandler_ty]:
     | invalid_except_block
 finally_block[asdl_stmt_seq*]: 'finally' ':' a=block { a }
 
+match_stmt[stmt_ty]:
+    | "match" subject=subject_expr ':' NEWLINE INDENT cases[asdl_match_case_seq*]=case_block+ DEDENT {
+        CHECK_VERSION(stmt_ty, 10, "Pattern matching is", _Py_Match(subject, cases, EXTRA)) }
+subject_expr[expr_ty]:
+    | value=star_named_expression ',' values=star_named_expressions? {
+        _Py_Tuple(CHECK(asdl_expr_seq*, _PyPegen_seq_insert_in_front(p, value, values)), Load, EXTRA) }
+    | named_expression
+case_block[match_case_ty]:
+    | "case" pattern=patterns guard=guard? ':' body=block {
+        _Py_match_case(pattern, guard, body, p->arena) }
+guard[expr_ty]: 'if' guard=named_expression { guard }
+
+patterns[expr_ty]:
+    | values[asdl_expr_seq*]=open_sequence_pattern {
+        _Py_Tuple(values, Load, EXTRA) }
+    | pattern
+pattern[expr_ty]:
+    | as_pattern
+    | or_pattern
+as_pattern[expr_ty]:
+    | pattern=or_pattern 'as' target=capture_pattern {
+        _Py_MatchAs(pattern, target->v.Name.id, EXTRA) }
+or_pattern[expr_ty]:
+    | patterns[asdl_expr_seq*]='|'.closed_pattern+ {
+        asdl_seq_LEN(patterns) == 1 ? asdl_seq_GET(patterns, 0) : _Py_MatchOr(patterns, EXTRA) }
+closed_pattern[expr_ty]:
+    | literal_pattern
+    | capture_pattern
+    | wildcard_pattern
+    | value_pattern
+    | group_pattern
+    | sequence_pattern
+    | mapping_pattern
+    | class_pattern
+
+literal_pattern[expr_ty]:
+    | signed_number !('+' | '-')
+    | real=signed_number '+' imag=NUMBER { _Py_BinOp(real, Add, imag, EXTRA) }
+    | real=signed_number '-' imag=NUMBER  { _Py_BinOp(real, Sub, imag, EXTRA) }
+    | strings
+    | 'None' { _Py_Constant(Py_None, NULL, EXTRA) }
+    | 'True' { _Py_Constant(Py_True, NULL, EXTRA) }
+    | 'False' { _Py_Constant(Py_False, NULL, EXTRA) }
+signed_number[expr_ty]:
+    | NUMBER
+    | '-' number=NUMBER { _Py_UnaryOp(USub, number, EXTRA) }
+
+capture_pattern[expr_ty]:
+    | !"_" name=NAME !('.' | '(' | '=') {
+        _PyPegen_set_expr_context(p, name, Store) }
+
+wildcard_pattern[expr_ty]:
+    | "_" { _Py_Name(CHECK(PyObject*, _PyPegen_new_identifier(p, "_")), Store, EXTRA) }
+
+value_pattern[expr_ty]:
+    | attr=attr !('.' | '(' | '=') { attr }
+attr[expr_ty]:
+    | value=name_or_attr '.' attr=NAME {
+        _Py_Attribute(value, attr->v.Name.id, Load, EXTRA) }
+name_or_attr[expr_ty]:
+    | attr
+    | NAME
+
+group_pattern[expr_ty]:
+    | '(' pattern=pattern ')' { pattern }
+
+sequence_pattern[expr_ty]:
+    | '[' values=maybe_sequence_pattern? ']' { _Py_List(values, Load, EXTRA) }
+    | '(' values=open_sequence_pattern? ')' { _Py_Tuple(values, Load, EXTRA) }
+open_sequence_pattern[asdl_seq*]:
+    | value=maybe_star_pattern ',' values=maybe_sequence_pattern? {
+        _PyPegen_seq_insert_in_front(p, value, values) }
+maybe_sequence_pattern[asdl_seq*]:
+    | values=','.maybe_star_pattern+ ','? { values }
+maybe_star_pattern[expr_ty]:
+    | star_pattern
+    | pattern
+star_pattern[expr_ty]:
+    | '*' value=(capture_pattern | wildcard_pattern) {
+        _Py_Starred(value, Store, EXTRA) }
+
+mapping_pattern[expr_ty]:
+    | '{' items=items_pattern? '}' {
+        _Py_Dict(CHECK(asdl_expr_seq*, _PyPegen_get_keys(p, items)), CHECK(asdl_expr_seq*, _PyPegen_get_values(p, items)), EXTRA) }
+items_pattern[asdl_seq*]:
+    | items=','.key_value_pattern+ ','? { items }
+key_value_pattern[KeyValuePair*]:
+    | key=(literal_pattern | value_pattern) ':' value=pattern {
+        _PyPegen_key_value_pair(p, key, value) }
+    | double_star_pattern
+double_star_pattern[KeyValuePair*]:
+    | '**' value=capture_pattern { _PyPegen_key_value_pair(p, NULL, value) }
+
+class_pattern[expr_ty]:
+    | func=name_or_attr '(' ')' { _Py_Call(func, NULL, NULL, EXTRA) }
+    | func=name_or_attr '(' args=positional_patterns ','? ')' {
+        _Py_Call(func, args, NULL, EXTRA) }
+    | func=name_or_attr '(' keywords=keyword_patterns ','? ')' {
+        _Py_Call(func, NULL, keywords, EXTRA) }
+    | func=name_or_attr '(' args=positional_patterns ',' keywords=keyword_patterns ','? ')' {
+        _Py_Call(func, args, keywords, EXTRA) }
+positional_patterns[asdl_expr_seq*]:
+    | args[asdl_expr_seq*]=','.pattern+ { args }
+keyword_patterns[asdl_keyword_seq*]:
+    | keywords[asdl_keyword_seq*]=','.keyword_pattern+ { keywords }
+keyword_pattern[keyword_ty]:
+    | arg=NAME '=' value=pattern { _Py_keyword(arg->v.Name.id, value, EXTRA) }
+
 return_stmt[stmt_ty]:
     | 'return' a=[star_expressions] { _Py_Return(a, EXTRA) }
 
@@ -676,7 +785,7 @@ invalid_assignment:
         RAISE_SYNTAX_ERROR_INVALID_TARGET(STAR_TARGETS, a) }
     | (star_targets '=')* a=yield_expr '=' { RAISE_SYNTAX_ERROR_KNOWN_LOCATION(a, "assignment to yield expression not possible") }
     | a=star_expressions augassign (yield_expr | star_expressions) {
-        RAISE_SYNTAX_ERROR_KNOWN_LOCATION( 
+        RAISE_SYNTAX_ERROR_KNOWN_LOCATION(
             a,
             "'%s' is an illegal expression for augmented assignment",
             _PyPegen_get_expr_name(a)
diff --git a/Include/Python-ast.h b/Include/Python-ast.h
index fc9f65c..bd127ca 100644
--- a/Include/Python-ast.h
+++ b/Include/Python-ast.h
@@ -44,6 +44,8 @@ typedef struct _alias *alias_ty;
 
 typedef struct _withitem *withitem_ty;
 
+typedef struct _match_case *match_case_ty;
+
 typedef struct _type_ignore *type_ignore_ty;
 
 
@@ -121,6 +123,14 @@ asdl_withitem_seq *_Py_asdl_withitem_seq_new(Py_ssize_t size, PyArena *arena);
 
 typedef struct {
     _ASDL_SEQ_HEAD
+    match_case_ty typed_elements[1];
+} asdl_match_case_seq;
+
+asdl_match_case_seq *_Py_asdl_match_case_seq_new(Py_ssize_t size, PyArena
+                                                 *arena);
+
+typedef struct {
+    _ASDL_SEQ_HEAD
     type_ignore_ty typed_elements[1];
 } asdl_type_ignore_seq;
 
@@ -158,10 +168,10 @@ enum _stmt_kind {FunctionDef_kind=1, AsyncFunctionDef_kind=2, ClassDef_kind=3,
                   Return_kind=4, Delete_kind=5, Assign_kind=6,
                   AugAssign_kind=7, AnnAssign_kind=8, For_kind=9,
                   AsyncFor_kind=10, While_kind=11, If_kind=12, With_kind=13,
-                  AsyncWith_kind=14, Raise_kind=15, Try_kind=16,
-                  Assert_kind=17, Import_kind=18, ImportFrom_kind=19,
-                  Global_kind=20, Nonlocal_kind=21, Expr_kind=22, Pass_kind=23,
-                  Break_kind=24, Continue_kind=25};
+                  AsyncWith_kind=14, Match_kind=15, Raise_kind=16, Try_kind=17,
+                  Assert_kind=18, Import_kind=19, ImportFrom_kind=20,
+                  Global_kind=21, Nonlocal_kind=22, Expr_kind=23, Pass_kind=24,
+                  Break_kind=25, Continue_kind=26};
 struct _stmt {
     enum _stmt_kind kind;
     union {
@@ -259,6 +269,11 @@ struct _stmt {
         } AsyncWith;
 
         struct {
+            expr_ty subject;
+            asdl_match_case_seq *cases;
+        } Match;
+
+        struct {
             expr_ty exc;
             expr_ty cause;
         } Raise;
@@ -311,7 +326,8 @@ enum _expr_kind {BoolOp_kind=1, NamedExpr_kind=2, BinOp_kind=3, UnaryOp_kind=4,
                   YieldFrom_kind=15, Compare_kind=16, Call_kind=17,
                   FormattedValue_kind=18, JoinedStr_kind=19, Constant_kind=20,
                   Attribute_kind=21, Subscript_kind=22, Starred_kind=23,
-                  Name_kind=24, List_kind=25, Tuple_kind=26, Slice_kind=27};
+                  Name_kind=24, List_kind=25, Tuple_kind=26, Slice_kind=27,
+                  MatchAs_kind=28, MatchOr_kind=29};
 struct _expr {
     enum _expr_kind kind;
     union {
@@ -454,6 +470,15 @@ struct _expr {
             expr_ty step;
         } Slice;
 
+        struct {
+            expr_ty pattern;
+            identifier name;
+        } MatchAs;
+
+        struct {
+            asdl_expr_seq *patterns;
+        } MatchOr;
+
     } v;
     int lineno;
     int col_offset;
@@ -524,6 +549,12 @@ struct _withitem {
     expr_ty optional_vars;
 };
 
+struct _match_case {
+    expr_ty pattern;
+    expr_ty guard;
+    asdl_stmt_seq *body;
+};
+
 enum _type_ignore_kind {TypeIgnore_kind=1};
 struct _type_ignore {
     enum _type_ignore_kind kind;
@@ -607,6 +638,10 @@ stmt_ty _Py_With(asdl_withitem_seq * items, asdl_stmt_seq * body, string
 stmt_ty _Py_AsyncWith(asdl_withitem_seq * items, asdl_stmt_seq * body, string
                       type_comment, int lineno, int col_offset, int end_lineno,
                       int end_col_offset, PyArena *arena);
+#define Match(a0, a1, a2, a3, a4, a5, a6) _Py_Match(a0, a1, a2, a3, a4, a5, a6)
+stmt_ty _Py_Match(expr_ty subject, asdl_match_case_seq * cases, int lineno, int
+                  col_offset, int end_lineno, int end_col_offset, PyArena
+                  *arena);
 #define Raise(a0, a1, a2, a3, a4, a5, a6) _Py_Raise(a0, a1, a2, a3, a4, a5, a6)
 stmt_ty _Py_Raise(expr_ty exc, expr_ty cause, int lineno, int col_offset, int
                   end_lineno, int end_col_offset, PyArena *arena);
@@ -743,6 +778,13 @@ expr_ty _Py_Tuple(asdl_expr_seq * elts, expr_context_ty ctx, int lineno, int
 expr_ty _Py_Slice(expr_ty lower, expr_ty upper, expr_ty step, int lineno, int
                   col_offset, int end_lineno, int end_col_offset, PyArena
                   *arena);
+#define MatchAs(a0, a1, a2, a3, a4, a5, a6) _Py_MatchAs(a0, a1, a2, a3, a4, a5, a6)
+expr_ty _Py_MatchAs(expr_ty pattern, identifier name, int lineno, int
+                    col_offset, int end_lineno, int end_col_offset, PyArena
+                    *arena);
+#define MatchOr(a0, a1, a2, a3, a4, a5) _Py_MatchOr(a0, a1, a2, a3, a4, a5)
+expr_ty _Py_MatchOr(asdl_expr_seq * patterns, int lineno, int col_offset, int
+                    end_lineno, int end_col_offset, PyArena *arena);
 #define comprehension(a0, a1, a2, a3, a4) _Py_comprehension(a0, a1, a2, a3, a4)
 comprehension_ty _Py_comprehension(expr_ty target, expr_ty iter, asdl_expr_seq
                                    * ifs, int is_async, PyArena *arena);
@@ -769,6 +811,9 @@ alias_ty _Py_alias(identifier name, identifier asname, PyArena *arena);
 #define withitem(a0, a1, a2) _Py_withitem(a0, a1, a2)
 withitem_ty _Py_withitem(expr_ty context_expr, expr_ty optional_vars, PyArena
                          *arena);
+#define match_case(a0, a1, a2, a3) _Py_match_case(a0, a1, a2, a3)
+match_case_ty _Py_match_case(expr_ty pattern, expr_ty guard, asdl_stmt_seq *
+                             body, PyArena *arena);
 #define TypeIgnore(a0, a1, a2) _Py_TypeIgnore(a0, a1, a2)
 type_ignore_ty _Py_TypeIgnore(int lineno, string tag, PyArena *arena);
 
diff --git a/Include/internal/pycore_ast.h b/Include/internal/pycore_ast.h
index 058fbc0..2d0c5fb 100644
--- a/Include/internal/pycore_ast.h
+++ b/Include/internal/pycore_ast.h
@@ -91,6 +91,9 @@ struct ast_state {
     PyObject *Lt_type;
     PyObject *MatMult_singleton;
     PyObject *MatMult_type;
+    PyObject *MatchAs_type;
+    PyObject *MatchOr_type;
+    PyObject *Match_type;
     PyObject *Mod_singleton;
     PyObject *Mod_type;
     PyObject *Module_type;
@@ -137,6 +140,7 @@ struct ast_state {
     PyObject *Yield_type;
     PyObject *__dict__;
     PyObject *__doc__;
+    PyObject *__match_args__;
     PyObject *__module__;
     PyObject *_attributes;
     PyObject *_fields;
@@ -153,6 +157,7 @@ struct ast_state {
     PyObject *bases;
     PyObject *body;
     PyObject *boolop_type;
+    PyObject *cases;
     PyObject *cause;
     PyObject *cmpop_type;
     PyObject *col_offset;
@@ -175,6 +180,7 @@ struct ast_state {
     PyObject *format_spec;
     PyObject *func;
     PyObject *generators;
+    PyObject *guard;
     PyObject *handlers;
     PyObject *id;
     PyObject *ifs;
@@ -193,6 +199,7 @@ struct ast_state {
     PyObject *level;
     PyObject *lineno;
     PyObject *lower;
+    PyObject *match_case_type;
     PyObject *mod_type;
     PyObject *module;
     PyObject *msg;
@@ -204,6 +211,8 @@ struct ast_state {
     PyObject *ops;
     PyObject *optional_vars;
     PyObject *orelse;
+    PyObject *pattern;
+    PyObject *patterns;
     PyObject *posonlyargs;
     PyObject *returns;
     PyObject *right;
@@ -211,6 +220,7 @@ struct ast_state {
     PyObject *slice;
     PyObject *step;
     PyObject *stmt_type;
+    PyObject *subject;
     PyObject *tag;
     PyObject *target;
     PyObject *targets;
diff --git a/Include/internal/pycore_interp.h b/Include/internal/pycore_interp.h
index 58b1126..477cbf0 100644
--- a/Include/internal/pycore_interp.h
+++ b/Include/internal/pycore_interp.h
@@ -253,6 +253,10 @@ struct _is {
     // importlib module
     PyObject *importlib;
 
+    // Kept handy for pattern matching:
+    PyObject *map_abc;  // _collections_abc.Mapping
+    PyObject *seq_abc;  // _collections_abc.Sequence
+
     /* Used in Modules/_threadmodule.c. */
     long num_threads;
     /* Support for runtime thread stack size tuning.
@@ -347,4 +351,3 @@ PyAPI_FUNC(void) _PyInterpreterState_IDDecref(struct _is *);
 }
 #endif
 #endif /* !Py_INTERNAL_INTERP_H */
-
diff --git a/Include/object.h b/Include/object.h
index 0870e4c..1454583 100644
--- a/Include/object.h
+++ b/Include/object.h
@@ -359,6 +359,11 @@ given type object has a specified feature.
 #define Py_TPFLAGS_HAVE_AM_SEND (1UL << 21)
 #endif
 
+// This undocumented flag gives certain built-ins their unique pattern-matching
+// behavior, which allows a single positional subpattern to match against the
+// subject itself (rather than a mapped attribute on it):
+#define _Py_TPFLAGS_MATCH_SELF (1UL << 22)
+
 /* These flags are used to determine if a type is a subclass. */
 #define Py_TPFLAGS_LONG_SUBCLASS        (1UL << 24)
 #define Py_TPFLAGS_LIST_SUBCLASS        (1UL << 25)
diff --git a/Include/opcode.h b/Include/opcode.h
index 998a5ce..ea484c5 100644
--- a/Include/opcode.h
+++ b/Include/opcode.h
@@ -30,6 +30,11 @@ extern "C" {
 #define BINARY_TRUE_DIVIDE       27
 #define INPLACE_FLOOR_DIVIDE     28
 #define INPLACE_TRUE_DIVIDE      29
+#define GET_LEN                  30
+#define MATCH_MAPPING            31
+#define MATCH_SEQUENCE           32
+#define MATCH_KEYS               33
+#define COPY_DICT_WITHOUT_KEYS   34
 #define WITH_EXCEPT_START        49
 #define GET_AITER                50
 #define GET_ANEXT                51
@@ -117,6 +122,7 @@ extern "C" {
 #define SET_ADD                 146
 #define MAP_ADD                 147
 #define LOAD_CLASSDEREF         148
+#define MATCH_CLASS             152
 #define SETUP_ASYNC_WITH        154
 #define FORMAT_VALUE            155
 #define BUILD_CONST_KEY_MAP     156
diff --git a/Include/symtable.h b/Include/symtable.h
index abd19a7..6f0b7cb 100644
--- a/Include/symtable.h
+++ b/Include/symtable.h
@@ -33,6 +33,7 @@ struct symtable {
                                        the symbol table */
     int recursion_depth;            /* current recursion depth */
     int recursion_limit;            /* recursion limit */
+    int in_pattern;                 /* whether we are currently in a pattern */
 };
 
 typedef struct _symtable_entry {
diff --git a/Lib/ast.py b/Lib/ast.py
index 845c80c..03ae2ec 100644
--- a/Lib/ast.py
+++ b/Lib/ast.py
@@ -1478,6 +1478,13 @@ class _Unparser(NodeVisitor):
             self.write(":")
             self.traverse(node.step)
 
+    def visit_Match(self, node):
+        self.fill("match ")
+        self.traverse(node.subject)
+        with self.block():
+            for case in node.cases:
+                self.traverse(case)
+
     def visit_arg(self, node):
         self.write(node.arg)
         if node.annotation:
@@ -1562,6 +1569,26 @@ class _Unparser(NodeVisitor):
             self.write(" as ")
             self.traverse(node.optional_vars)
 
+    def visit_match_case(self, node):
+        self.fill("case ")
+        self.traverse(node.pattern)
+        if node.guard:
+            self.write(" if ")
+            self.traverse(node.guard)
+        with self.block():
+            self.traverse(node.body)
+
+    def visit_MatchAs(self, node):
+        with self.require_parens(_Precedence.TEST, node):
+            self.set_precedence(_Precedence.BOR, node.pattern)
+            self.traverse(node.pattern)
+            self.write(f" as {node.name}")
+
+    def visit_MatchOr(self, node):
+        with self.require_parens(_Precedence.BOR, node):
+            self.set_precedence(_Precedence.BOR.next(), *node.patterns)
+            self.interleave(lambda: self.write(" | "), self.traverse, node.patterns)
+
 def unparse(ast_obj):
     unparser = _Unparser()
     return unparser.visit(ast_obj)
diff --git a/Lib/collections/__init__.py b/Lib/collections/__init__.py
index 6fe3c4c..6404ea9 100644
--- a/Lib/collections/__init__.py
+++ b/Lib/collections/__init__.py
@@ -472,6 +472,7 @@ def namedtuple(typename, field_names, *, rename=False, defaults=None, module=Non
         '__repr__': __repr__,
         '_asdict': _asdict,
         '__getnewargs__': __getnewargs__,
+        '__match_args__': field_names,
     }
     for index, name in enumerate(field_names):
         doc = _sys.intern(f'Alias for field number {index}')
diff --git a/Lib/dataclasses.py b/Lib/dataclasses.py
index 0c4b475..422a95c 100644
--- a/Lib/dataclasses.py
+++ b/Lib/dataclasses.py
@@ -152,6 +152,15 @@ __all__ = ['dataclass',
 #
 # See _hash_action (below) for a coded version of this table.
 
+# __match_args__
+#
+# |  no   |  yes  |  <--- class has __match_args__ in __dict__?
+# +=======+=======+
+# | add   |       |  <- the default
+# +=======+=======+
+# __match_args__ is always added unless the class already defines it. It is a
+# tuple of __init__ parameter names; non-init fields must be matched by keyword.
+
 
 # Raised when an attempt is made to modify a frozen class.
 class FrozenInstanceError(AttributeError): pass
@@ -1007,6 +1016,9 @@ def _process_class(cls, init, repr, eq, order, unsafe_hash, frozen):
         cls.__doc__ = (cls.__name__ +
                        str(inspect.signature(cls)).replace(' -> NoneType', ''))
 
+    if '__match_args__' not in cls.__dict__:
+        cls.__match_args__ = tuple(f.name for f in flds if f.init)
+
     abc.update_abstractmethods(cls)
 
     return cls
diff --git a/Lib/importlib/_bootstrap_external.py b/Lib/importlib/_bootstrap_external.py
index 3546500..3396d5d 100644
--- a/Lib/importlib/_bootstrap_external.py
+++ b/Lib/importlib/_bootstrap_external.py
@@ -313,6 +313,7 @@ _code_type = type(_write_atomic.__code__)
 #     Python 3.10a1 3431 (New line number table format -- PEP 626)
 #     Python 3.10a2 3432 (Function annotation for MAKE_FUNCTION is changed from dict to tuple bpo-42202)
 #     Python 3.10a2 3433 (RERAISE restores f_lasti if oparg != 0)
+#     Python 3.10a6 3434 (PEP 634: Structural Pattern Matching)
 
 #
 # MAGIC must change whenever the bytecode emitted by the compiler may no
@@ -322,7 +323,7 @@ _code_type = type(_write_atomic.__code__)
 # Whenever MAGIC_NUMBER is changed, the ranges in the magic_values array
 # in PC/launcher.c must also be updated.
 
-MAGIC_NUMBER = (3433).to_bytes(2, 'little') + b'\r\n'
+MAGIC_NUMBER = (3434).to_bytes(2, 'little') + b'\r\n'
 _RAW_MAGIC_NUMBER = int.from_bytes(MAGIC_NUMBER, 'little')  # For import.c
 
 _PYCACHE = '__pycache__'
diff --git a/Lib/keyword.py b/Lib/keyword.py
index 3186171..cc2b46b 100644
--- a/Lib/keyword.py
+++ b/Lib/keyword.py
@@ -54,7 +54,9 @@ kwlist = [
 ]
 
 softkwlist = [
-
+    '_',
+    'case',
+    'match'
 ]
 
 iskeyword = frozenset(kwlist).__contains__
diff --git a/Lib/opcode.py b/Lib/opcode.py
index cc32116..b119712 100644
--- a/Lib/opcode.py
+++ b/Lib/opcode.py
@@ -67,7 +67,6 @@ def_op('UNARY_NEGATIVE', 11)
 def_op('UNARY_NOT', 12)
 
 def_op('UNARY_INVERT', 15)
-
 def_op('BINARY_MATRIX_MULTIPLY', 16)
 def_op('INPLACE_MATRIX_MULTIPLY', 17)
 
@@ -82,6 +81,11 @@ def_op('BINARY_FLOOR_DIVIDE', 26)
 def_op('BINARY_TRUE_DIVIDE', 27)
 def_op('INPLACE_FLOOR_DIVIDE', 28)
 def_op('INPLACE_TRUE_DIVIDE', 29)
+def_op('GET_LEN', 30)
+def_op('MATCH_MAPPING', 31)
+def_op('MATCH_SEQUENCE', 32)
+def_op('MATCH_KEYS', 33)
+def_op('COPY_DICT_WITHOUT_KEYS', 34)
 
 def_op('WITH_EXCEPT_START', 49)
 def_op('GET_AITER', 50)
@@ -104,7 +108,6 @@ def_op('BINARY_OR', 66)
 def_op('INPLACE_POWER', 67)
 def_op('GET_ITER', 68)
 def_op('GET_YIELD_FROM_ITER', 69)
-
 def_op('PRINT_EXPR', 70)
 def_op('LOAD_BUILD_CLASS', 71)
 def_op('YIELD_FROM', 72)
@@ -136,6 +139,7 @@ name_op('STORE_ATTR', 95)       # Index in name list
 name_op('DELETE_ATTR', 96)      # ""
 name_op('STORE_GLOBAL', 97)     # ""
 name_op('DELETE_GLOBAL', 98)    # ""
+
 def_op('LOAD_CONST', 100)       # Index in const list
 hasconst.append(100)
 name_op('LOAD_NAME', 101)       # Index in name list
@@ -148,16 +152,13 @@ def_op('COMPARE_OP', 107)       # Comparison operator
 hascompare.append(107)
 name_op('IMPORT_NAME', 108)     # Index in name list
 name_op('IMPORT_FROM', 109)     # Index in name list
-
 jrel_op('JUMP_FORWARD', 110)    # Number of bytes to skip
 jabs_op('JUMP_IF_FALSE_OR_POP', 111) # Target byte offset from beginning of code
 jabs_op('JUMP_IF_TRUE_OR_POP', 112)  # ""
 jabs_op('JUMP_ABSOLUTE', 113)        # ""
 jabs_op('POP_JUMP_IF_FALSE', 114)    # ""
 jabs_op('POP_JUMP_IF_TRUE', 115)     # ""
-
 name_op('LOAD_GLOBAL', 116)     # Index in name list
-
 def_op('IS_OP', 117)
 def_op('CONTAINS_OP', 118)
 def_op('RERAISE', 119)
@@ -176,6 +177,7 @@ def_op('RAISE_VARARGS', 130)    # Number of raise arguments (1, 2, or 3)
 def_op('CALL_FUNCTION', 131)    # #args
 def_op('MAKE_FUNCTION', 132)    # Flags
 def_op('BUILD_SLICE', 133)      # Number of items
+
 def_op('LOAD_CLOSURE', 135)
 hasfree.append(135)
 def_op('LOAD_DEREF', 136)
@@ -187,28 +189,24 @@ hasfree.append(138)
 
 def_op('CALL_FUNCTION_KW', 141)  # #args + #kwargs
 def_op('CALL_FUNCTION_EX', 142)  # Flags
-
 jrel_op('SETUP_WITH', 143)
-
+def_op('EXTENDED_ARG', 144)
+EXTENDED_ARG = 144
 def_op('LIST_APPEND', 145)
 def_op('SET_ADD', 146)
 def_op('MAP_ADD', 147)
-
 def_op('LOAD_CLASSDEREF', 148)
 hasfree.append(148)
 
-def_op('EXTENDED_ARG', 144)
-EXTENDED_ARG = 144
+def_op('MATCH_CLASS', 152)
 
 jrel_op('SETUP_ASYNC_WITH', 154)
-
 def_op('FORMAT_VALUE', 155)
 def_op('BUILD_CONST_KEY_MAP', 156)
 def_op('BUILD_STRING', 157)
 
 name_op('LOAD_METHOD', 160)
 def_op('CALL_METHOD', 161)
-
 def_op('LIST_EXTEND', 162)
 def_op('SET_UPDATE', 163)
 def_op('DICT_MERGE', 164)
diff --git a/Lib/test/libregrtest/pgo.py b/Lib/test/libregrtest/pgo.py
index 379ff05..582e812 100644
--- a/Lib/test/libregrtest/pgo.py
+++ b/Lib/test/libregrtest/pgo.py
@@ -35,6 +35,7 @@ PGO_TESTS = [
     'test_memoryview',
     'test_operator',
     'test_ordered_dict',
+    'test_patma',
     'test_pickle',
     'test_pprint',
     'test_re',
diff --git a/Lib/test/test_ast.py b/Lib/test/test_ast.py
index 451f40d..bddb3de 100644
--- a/Lib/test/test_ast.py
+++ b/Lib/test/test_ast.py
@@ -273,6 +273,7 @@ class AST_Tests(unittest.TestCase):
                     self._assertTrueorder(child, first_pos)
             elif value is not None:
                 self._assertTrueorder(value, parent_pos)
+        self.assertEqual(ast_node._fields, ast_node.__match_args__)
 
     def test_AST_objects(self):
         x = ast.AST()
diff --git a/Lib/test/test_collections.py b/Lib/test/test_collections.py
index 54a4cbe..d1c305a 100644
--- a/Lib/test/test_collections.py
+++ b/Lib/test/test_collections.py
@@ -687,6 +687,10 @@ class TestNamedTuple(unittest.TestCase):
         self.assertEqual(new_func.__globals__['__builtins__'], {})
         self.assertEqual(new_func.__builtins__, {})
 
+    def test_match_args(self):
+        Point = namedtuple('Point', 'x y')
+        self.assertEqual(Point.__match_args__, ('x', 'y'))
+
 
 ################################################################################
 ### Abstract Base Classes
diff --git a/Lib/test/test_dataclasses.py b/Lib/test/test_dataclasses.py
index 8887eb6..0bfed41 100644
--- a/Lib/test/test_dataclasses.py
+++ b/Lib/test/test_dataclasses.py
@@ -3375,5 +3375,21 @@ class TestAbstract(unittest.TestCase):
         self.assertRaisesRegex(TypeError, msg, Date)
 
 
+class TestMatchArgs(unittest.TestCase):
+    def test_match_args(self):
+        @dataclass
+        class C:
+            a: int
+        self.assertEqual(C(42).__match_args__, ('a',))
+
+    def test_explicit_match_args(self):
+        ma = []
+        @dataclass
+        class C:
+            a: int
+            __match_args__ = ma
+        self.assertIs(C(42).__match_args__, ma)
+
+
 if __name__ == '__main__':
     unittest.main()
diff --git a/Lib/test/test_patma.py b/Lib/test/test_patma.py
new file mode 100644
index 0000000..286b190
--- /dev/null
+++ b/Lib/test/test_patma.py
@@ -0,0 +1,2878 @@
+import array
+import collections
+import contextlib
+import dataclasses
+import enum
+import inspect
+import unittest
+import warnings
+
+
+def no_perf(f):
+    f.no_perf = None
+    return f
+
+
+@dataclasses.dataclass
+class MyClass:
+    x: int
+    y: str
+    __match_args__ = ["x", "y"]
+
+
+@dataclasses.dataclass
+class Point:
+    x: int
+    y: int
+
+
+class TestPatma(unittest.TestCase):
+
+    def assert_syntax_error(self, code: str):
+        with self.assertRaises(SyntaxError):
+            compile(inspect.cleandoc(code), "<test>", "exec")
+
+    def test_patma_000(self):
+        match 0:
+            case 0:
+                x = True
+        self.assertIs(x, True)
+
+    def test_patma_001(self):
+        match 0:
+            case 0 if False:
+                x = False
+            case 0 if True:
+                x = True
+        self.assertIs(x, True)
+
+    def test_patma_002(self):
+        match 0:
+            case 0:
+                x = True
+            case 0:
+                x = False
+        self.assertIs(x, True)
+
+    def test_patma_003(self):
+        x = False
+        match 0:
+            case 0 | 1 | 2 | 3:
+                x = True
+        self.assertIs(x, True)
+
+    def test_patma_004(self):
+        x = False
+        match 1:
+            case 0 | 1 | 2 | 3:
+                x = True
+        self.assertIs(x, True)
+
+    def test_patma_005(self):
+        x = False
+        match 2:
+            case 0 | 1 | 2 | 3:
+                x = True
+        self.assertIs(x, True)
+
+    def test_patma_006(self):
+        x = False
+        match 3:
+            case 0 | 1 | 2 | 3:
+                x = True
+        self.assertIs(x, True)
+
+    def test_patma_007(self):
+        x = False
+        match 4:
+            case 0 | 1 | 2 | 3:
+                x = True
+        self.assertIs(x, False)
+
+    def test_patma_008(self):
+        x = 0
+        class A:
+            y = 1
+        match x:
+            case A.y as z:
+                pass
+        self.assertEqual(x, 0)
+        self.assertEqual(A.y, 1)
+
+    def test_patma_009(self):
+        class A:
+            B = 0
+        match 0:
+            case x if x:
+                z = 0
+            case _ as y if y == x and y:
+                z = 1
+            case A.B:
+                z = 2
+        self.assertEqual(A.B, 0)
+        self.assertEqual(x, 0)
+        self.assertEqual(y, 0)
+        self.assertEqual(z, 2)
+
+    def test_patma_010(self):
+        match ():
+            case []:
+                x = 0
+        self.assertEqual(x, 0)
+
+    def test_patma_011(self):
+        match (0, 1, 2):
+            case [*x]:
+                y = 0
+        self.assertEqual(x, [0, 1, 2])
+        self.assertEqual(y, 0)
+
+    def test_patma_012(self):
+        match (0, 1, 2):
+            case [0, *x]:
+                y = 0
+        self.assertEqual(x, [1, 2])
+        self.assertEqual(y, 0)
+
+    def test_patma_013(self):
+        match (0, 1, 2):
+            case [0, 1, *x,]:
+                y = 0
+        self.assertEqual(x, [2])
+        self.assertEqual(y, 0)
+
+    def test_patma_014(self):
+        match (0, 1, 2):
+            case [0, 1, 2, *x]:
+                y = 0
+        self.assertEqual(x, [])
+        self.assertEqual(y, 0)
+
+    def test_patma_015(self):
+        match (0, 1, 2):
+            case [*x, 2,]:
+                y = 0
+        self.assertEqual(x, [0, 1])
+        self.assertEqual(y, 0)
+
+    def test_patma_016(self):
+        match (0, 1, 2):
+            case [*x, 1, 2]:
+                y = 0
+        self.assertEqual(x, [0])
+        self.assertEqual(y, 0)
+
+    def test_patma_017(self):
+        match (0, 1, 2):
+            case [*x, 0, 1, 2,]:
+                y = 0
+        self.assertEqual(x, [])
+        self.assertEqual(y, 0)
+
+    def test_patma_018(self):
+        match (0, 1, 2):
+            case [0, *x, 2]:
+                y = 0
+        self.assertEqual(x, [1])
+        self.assertEqual(y, 0)
+
+    def test_patma_019(self):
+        match (0, 1, 2):
+            case [0, 1, *x, 2,]:
+                y = 0
+        self.assertEqual(x, [])
+        self.assertEqual(y, 0)
+
+    def test_patma_020(self):
+        match (0, 1, 2):
+            case [0, *x, 1, 2]:
+                y = 0
+        self.assertEqual(x, [])
+        self.assertEqual(y, 0)
+
+    def test_patma_021(self):
+        match (0, 1, 2):
+            case [*x,]:
+                y = 0
+        self.assertEqual(x, [0, 1, 2])
+        self.assertEqual(y, 0)
+
+    def test_patma_022(self):
+        x = {}
+        match x:
+            case {}:
+                y = 0
+        self.assertEqual(x, {})
+        self.assertEqual(y, 0)
+
+    def test_patma_023(self):
+        x = {0: 0}
+        match x:
+            case {}:
+                y = 0
+        self.assertEqual(x, {0: 0})
+        self.assertEqual(y, 0)
+
+    def test_patma_024(self):
+        x = {}
+        y = None
+        match x:
+            case {0: 0}:
+                y = 0
+        self.assertEqual(x, {})
+        self.assertIs(y, None)
+
+    def test_patma_025(self):
+        x = {0: 0}
+        match x:
+            case {0: (0 | 1 | 2 as z)}:
+                y = 0
+        self.assertEqual(x, {0: 0})
+        self.assertEqual(y, 0)
+        self.assertEqual(z, 0)
+
+    def test_patma_026(self):
+        x = {0: 1}
+        match x:
+            case {0: (0 | 1 | 2 as z)}:
+                y = 0
+        self.assertEqual(x, {0: 1})
+        self.assertEqual(y, 0)
+        self.assertEqual(z, 1)
+
+    def test_patma_027(self):
+        x = {0: 2}
+        match x:
+            case {0: (0 | 1 | 2 as z)}:
+                y = 0
+        self.assertEqual(x, {0: 2})
+        self.assertEqual(y, 0)
+        self.assertEqual(z, 2)
+
+    def test_patma_028(self):
+        x = {0: 3}
+        y = None
+        match x:
+            case {0: (0 | 1 | 2 as z)}:
+                y = 0
+        self.assertEqual(x, {0: 3})
+        self.assertIs(y, None)
+
+    def test_patma_029(self):
+        x = {}
+        y = None
+        match x:
+            case {0: [1, 2, {}]}:
+                y = 0
+            case {0: [1, 2, {}], 1: [[]]}:
+                y = 1
+            case []:
+                y = 2
+        self.assertEqual(x, {})
+        self.assertIs(y, None)
+
+    def test_patma_030(self):
+        x = {False: (True, 2.0, {})}
+        match x:
+            case {0: [1, 2, {}]}:
+                y = 0
+            case {0: [1, 2, {}], 1: [[]]}:
+                y = 1
+            case []:
+                y = 2
+        self.assertEqual(x, {False: (True, 2.0, {})})
+        self.assertEqual(y, 0)
+
+    def test_patma_031(self):
+        x = {False: (True, 2.0, {}), 1: [[]], 2: 0}
+        match x:
+            case {0: [1, 2, {}]}:
+                y = 0
+            case {0: [1, 2, {}], 1: [[]]}:
+                y = 1
+            case []:
+                y = 2
+        self.assertEqual(x, {False: (True, 2.0, {}), 1: [[]], 2: 0})
+        self.assertEqual(y, 0)
+
+    def test_patma_032(self):
+        x = {False: (True, 2.0, {}), 1: [[]], 2: 0}
+        match x:
+            case {0: [1, 2]}:
+                y = 0
+            case {0: [1, 2, {}], 1: [[]]}:
+                y = 1
+            case []:
+                y = 2
+        self.assertEqual(x, {False: (True, 2.0, {}), 1: [[]], 2: 0})
+        self.assertEqual(y, 1)
+
+    def test_patma_033(self):
+        x = []
+        match x:
+            case {0: [1, 2, {}]}:
+                y = 0
+            case {0: [1, 2, {}], 1: [[]]}:
+                y = 1
+            case []:
+                y = 2
+        self.assertEqual(x, [])
+        self.assertEqual(y, 2)
+
+    def test_patma_034(self):
+        x = {0: 0}
+        match x:
+            case {0: [1, 2, {}]}:
+                y = 0
+            case {0: ([1, 2, {}] | False)} | {1: [[]]} | {0: [1, 2, {}]} | [] | "X" | {}:
+                y = 1
+            case []:
+                y = 2
+        self.assertEqual(x, {0: 0})
+        self.assertEqual(y, 1)
+
+    def test_patma_035(self):
+        x = {0: 0}
+        match x:
+            case {0: [1, 2, {}]}:
+                y = 0
+            case {0: [1, 2, {}] | True} | {1: [[]]} | {0: [1, 2, {}]} | [] | "X" | {}:
+                y = 1
+            case []:
+                y = 2
+        self.assertEqual(x, {0: 0})
+        self.assertEqual(y, 1)
+
+    def test_patma_036(self):
+        x = 0
+        match x:
+            case 0 | 1 | 2:
+                y = 0
+        self.assertEqual(x, 0)
+        self.assertEqual(y, 0)
+
+    def test_patma_037(self):
+        x = 1
+        match x:
+            case 0 | 1 | 2:
+                y = 0
+        self.assertEqual(x, 1)
+        self.assertEqual(y, 0)
+
+    def test_patma_038(self):
+        x = 2
+        match x:
+            case 0 | 1 | 2:
+                y = 0
+        self.assertEqual(x, 2)
+        self.assertEqual(y, 0)
+
+    def test_patma_039(self):
+        x = 3
+        y = None
+        match x:
+            case 0 | 1 | 2:
+                y = 0
+        self.assertEqual(x, 3)
+        self.assertIs(y, None)
+
+    def test_patma_040(self):
+        x = 0
+        match x:
+            case (0 as z) | (1 as z) | (2 as z) if z == x % 2:
+                y = 0
+        self.assertEqual(x, 0)
+        self.assertEqual(y, 0)
+        self.assertEqual(z, 0)
+
+    def test_patma_041(self):
+        x = 1
+        match x:
+            case (0 as z) | (1 as z) | (2 as z) if z == x % 2:
+                y = 0
+        self.assertEqual(x, 1)
+        self.assertEqual(y, 0)
+        self.assertEqual(z, 1)
+
+    def test_patma_042(self):
+        x = 2
+        y = None
+        match x:
+            case (0 as z) | (1 as z) | (2 as z) if z == x % 2:
+                y = 0
+        self.assertEqual(x, 2)
+        self.assertIs(y, None)
+        self.assertEqual(z, 2)
+
+    def test_patma_043(self):
+        x = 3
+        y = None
+        match x:
+            case (0 as z) | (1 as z) | (2 as z) if z == x % 2:
+                y = 0
+        self.assertEqual(x, 3)
+        self.assertIs(y, None)
+
+    def test_patma_044(self):
+        x = ()
+        match x:
+            case []:
+                y = 0
+        self.assertEqual(x, ())
+        self.assertEqual(y, 0)
+
+    def test_patma_045(self):
+        x = ()
+        match x:
+            case ():
+                y = 0
+        self.assertEqual(x, ())
+        self.assertEqual(y, 0)
+
+    def test_patma_046(self):
+        x = (0,)
+        match x:
+            case [0]:
+                y = 0
+        self.assertEqual(x, (0,))
+        self.assertEqual(y, 0)
+
+    def test_patma_047(self):
+        x = ((),)
+        match x:
+            case [[]]:
+                y = 0
+        self.assertEqual(x, ((),))
+        self.assertEqual(y, 0)
+
+    def test_patma_048(self):
+        x = [0, 1]
+        match x:
+            case [0, 1] | [1, 0]:
+                y = 0
+        self.assertEqual(x, [0, 1])
+        self.assertEqual(y, 0)
+
+    def test_patma_049(self):
+        x = [1, 0]
+        match x:
+            case [0, 1] | [1, 0]:
+                y = 0
+        self.assertEqual(x, [1, 0])
+        self.assertEqual(y, 0)
+
+    def test_patma_050(self):
+        x = [0, 0]
+        y = None
+        match x:
+            case [0, 1] | [1, 0]:
+                y = 0
+        self.assertEqual(x, [0, 0])
+        self.assertIs(y, None)
+
+    def test_patma_051(self):
+        w = None
+        x = [1, 0]
+        match x:
+            case [(0 as w)]:
+                y = 0
+            case [z] | [1, (0 | 1 as z)] | [z]:
+                y = 1
+        self.assertIs(w, None)
+        self.assertEqual(x, [1, 0])
+        self.assertEqual(y, 1)
+        self.assertEqual(z, 0)
+
+    def test_patma_052(self):
+        x = [1, 0]
+        match x:
+            case [0]:
+                y = 0
+            case [1, 0] if (x := x[:0]):
+                y = 1
+            case [1, 0]:
+                y = 2
+        self.assertEqual(x, [])
+        self.assertEqual(y, 2)
+
+    def test_patma_053(self):
+        x = {0}
+        y = None
+        match x:
+            case [0]:
+                y = 0
+        self.assertEqual(x, {0})
+        self.assertIs(y, None)
+
+    def test_patma_054(self):
+        x = set()
+        y = None
+        match x:
+            case []:
+                y = 0
+        self.assertEqual(x, set())
+        self.assertIs(y, None)
+
+    def test_patma_055(self):
+        x = iter([1, 2, 3])
+        y = None
+        match x:
+            case []:
+                y = 0
+        self.assertEqual([*x], [1, 2, 3])
+        self.assertIs(y, None)
+
+    def test_patma_056(self):
+        x = {}
+        y = None
+        match x:
+            case []:
+                y = 0
+        self.assertEqual(x, {})
+        self.assertIs(y, None)
+
+    def test_patma_057(self):
+        x = {0: False, 1: True}
+        y = None
+        match x:
+            case [0, 1]:
+                y = 0
+        self.assertEqual(x, {0: False, 1: True})
+        self.assertIs(y, None)
+
+    def test_patma_058(self):
+        x = 0
+        match x:
+            case 0:
+                y = 0
+        self.assertEqual(x, 0)
+        self.assertEqual(y, 0)
+
+    def test_patma_059(self):
+        x = 0
+        y = None
+        match x:
+            case False:
+                y = 0
+        self.assertEqual(x, 0)
+        self.assertEqual(y, None)
+
+    def test_patma_060(self):
+        x = 0
+        y = None
+        match x:
+            case 1:
+                y = 0
+        self.assertEqual(x, 0)
+        self.assertIs(y, None)
+
+    def test_patma_061(self):
+        x = 0
+        y = None
+        match x:
+            case None:
+                y = 0
+        self.assertEqual(x, 0)
+        self.assertIs(y, None)
+
+    def test_patma_062(self):
+        x = 0
+        match x:
+            case 0:
+                y = 0
+            case 0:
+                y = 1
+        self.assertEqual(x, 0)
+        self.assertEqual(y, 0)
+
+    def test_patma_063(self):
+        x = 0
+        y = None
+        match x:
+            case 1:
+                y = 0
+            case 1:
+                y = 1
+        self.assertEqual(x, 0)
+        self.assertIs(y, None)
+
+    def test_patma_064(self):
+        x = "x"
+        match x:
+            case "x":
+                y = 0
+            case "y":
+                y = 1
+        self.assertEqual(x, "x")
+        self.assertEqual(y, 0)
+
+    def test_patma_065(self):
+        x = "x"
+        match x:
+            case "y":
+                y = 0
+            case "x":
+                y = 1
+        self.assertEqual(x, "x")
+        self.assertEqual(y, 1)
+
+    def test_patma_066(self):
+        x = "x"
+        match x:
+            case "":
+                y = 0
+            case "x":
+                y = 1
+        self.assertEqual(x, "x")
+        self.assertEqual(y, 1)
+
+    def test_patma_067(self):
+        x = b"x"
+        match x:
+            case b"y":
+                y = 0
+            case b"x":
+                y = 1
+        self.assertEqual(x, b"x")
+        self.assertEqual(y, 1)
+
+    def test_patma_068(self):
+        x = 0
+        match x:
+            case 0 if False:
+                y = 0
+            case 0:
+                y = 1
+        self.assertEqual(x, 0)
+        self.assertEqual(y, 1)
+
+    def test_patma_069(self):
+        x = 0
+        y = None
+        match x:
+            case 0 if 0:
+                y = 0
+            case 0 if 0:
+                y = 1
+        self.assertEqual(x, 0)
+        self.assertIs(y, None)
+
+    def test_patma_070(self):
+        x = 0
+        match x:
+            case 0 if True:
+                y = 0
+            case 0 if True:
+                y = 1
+        self.assertEqual(x, 0)
+        self.assertEqual(y, 0)
+
+    def test_patma_071(self):
+        x = 0
+        match x:
+            case 0 if 1:
+                y = 0
+            case 0 if 1:
+                y = 1
+        self.assertEqual(x, 0)
+        self.assertEqual(y, 0)
+
+    def test_patma_072(self):
+        x = 0
+        match x:
+            case 0 if True:
+                y = 0
+            case 0 if True:
+                y = 1
+        y = 2
+        self.assertEqual(x, 0)
+        self.assertEqual(y, 2)
+
+    def test_patma_073(self):
+        x = 0
+        match x:
+            case 0 if 0:
+                y = 0
+            case 0 if 1:
+                y = 1
+        y = 2
+        self.assertEqual(x, 0)
+        self.assertEqual(y, 2)
+
+    def test_patma_074(self):
+        x = 0
+        y = None
+        match x:
+            case 0 if not (x := 1):
+                y = 0
+            case 1:
+                y = 1
+        self.assertEqual(x, 1)
+        self.assertIs(y, None)
+
+    def test_patma_075(self):
+        x = "x"
+        match x:
+            case ["x"]:
+                y = 0
+            case "x":
+                y = 1
+        self.assertEqual(x, "x")
+        self.assertEqual(y, 1)
+
+    def test_patma_076(self):
+        x = b"x"
+        match x:
+            case [b"x"]:
+                y = 0
+            case ["x"]:
+                y = 1
+            case [120]:
+                y = 2
+            case b"x":
+                y = 4
+        self.assertEqual(x, b"x")
+        self.assertEqual(y, 4)
+
+    def test_patma_077(self):
+        x = bytearray(b"x")
+        y = None
+        match x:
+            case [120]:
+                y = 0
+            case 120:
+                y = 1
+        self.assertEqual(x, b"x")
+        self.assertIs(y, None)
+
+    def test_patma_078(self):
+        x = ""
+        match x:
+            case []:
+                y = 0
+            case [""]:
+                y = 1
+            case "":
+                y = 2
+        self.assertEqual(x, "")
+        self.assertEqual(y, 2)
+
+    def test_patma_079(self):
+        x = "xxx"
+        match x:
+            case ["x", "x", "x"]:
+                y = 0
+            case ["xxx"]:
+                y = 1
+            case "xxx":
+                y = 2
+        self.assertEqual(x, "xxx")
+        self.assertEqual(y, 2)
+
+    def test_patma_080(self):
+        x = b"xxx"
+        match x:
+            case [120, 120, 120]:
+                y = 0
+            case [b"xxx"]:
+                y = 1
+            case b"xxx":
+                y = 2
+        self.assertEqual(x, b"xxx")
+        self.assertEqual(y, 2)
+
+    def test_patma_081(self):
+        x = 0
+        match x:
+            case 0 if not (x := 1):
+                y = 0
+            case (0 as z):
+                y = 1
+        self.assertEqual(x, 1)
+        self.assertEqual(y, 1)
+        self.assertEqual(z, 0)
+
+    def test_patma_082(self):
+        x = 0
+        match x:
+            case (1 as z) if not (x := 1):
+                y = 0
+            case 0:
+                y = 1
+        self.assertEqual(x, 0)
+        self.assertEqual(y, 1)
+
+    def test_patma_083(self):
+        x = 0
+        match x:
+            case (0 as z):
+                y = 0
+        self.assertEqual(x, 0)
+        self.assertEqual(y, 0)
+        self.assertEqual(z, 0)
+
+    def test_patma_084(self):
+        x = 0
+        y = None
+        match x:
+            case (1 as z):
+                y = 0
+        self.assertEqual(x, 0)
+        self.assertIs(y, None)
+
+    def test_patma_085(self):
+        x = 0
+        y = None
+        match x:
+            case (0 as z) if (w := 0):
+                y = 0
+        self.assertEqual(w, 0)
+        self.assertEqual(x, 0)
+        self.assertIs(y, None)
+        self.assertEqual(z, 0)
+
+    def test_patma_086(self):
+        x = 0
+        match x:
+            case ((0 as w) as z):
+                y = 0
+        self.assertEqual(w, 0)
+        self.assertEqual(x, 0)
+        self.assertEqual(y, 0)
+        self.assertEqual(z, 0)
+
+    def test_patma_087(self):
+        x = 0
+        match x:
+            case (0 | 1) | 2:
+                y = 0
+        self.assertEqual(x, 0)
+        self.assertEqual(y, 0)
+
+    def test_patma_088(self):
+        x = 1
+        match x:
+            case (0 | 1) | 2:
+                y = 0
+        self.assertEqual(x, 1)
+        self.assertEqual(y, 0)
+
+    def test_patma_089(self):
+        x = 2
+        match x:
+            case (0 | 1) | 2:
+                y = 0
+        self.assertEqual(x, 2)
+        self.assertEqual(y, 0)
+
+    def test_patma_090(self):
+        x = 3
+        y = None
+        match x:
+            case (0 | 1) | 2:
+                y = 0
+        self.assertEqual(x, 3)
+        self.assertIs(y, None)
+
+    def test_patma_091(self):
+        x = 0
+        match x:
+            case 0 | (1 | 2):
+                y = 0
+        self.assertEqual(x, 0)
+        self.assertEqual(y, 0)
+
+    def test_patma_092(self):
+        x = 1
+        match x:
+            case 0 | (1 | 2):
+                y = 0
+        self.assertEqual(x, 1)
+        self.assertEqual(y, 0)
+
+    def test_patma_093(self):
+        x = 2
+        match x:
+            case 0 | (1 | 2):
+                y = 0
+        self.assertEqual(x, 2)
+        self.assertEqual(y, 0)
+
+    def test_patma_094(self):
+        x = 3
+        y = None
+        match x:
+            case 0 | (1 | 2):
+                y = 0
+        self.assertEqual(x, 3)
+        self.assertIs(y, None)
+
+    def test_patma_095(self):
+        x = 0
+        match x:
+            case -0:
+                y = 0
+        self.assertEqual(x, 0)
+        self.assertEqual(y, 0)
+
+    def test_patma_096(self):
+        x = 0
+        match x:
+            case -0.0:
+                y = 0
+        self.assertEqual(x, 0)
+        self.assertEqual(y, 0)
+
+    def test_patma_097(self):
+        x = 0
+        match x:
+            case -0j:
+                y = 0
+        self.assertEqual(x, 0)
+        self.assertEqual(y, 0)
+
+    def test_patma_098(self):
+        x = 0
+        match x:
+            case -0.0j:
+                y = 0
+        self.assertEqual(x, 0)
+        self.assertEqual(y, 0)
+
+    def test_patma_099(self):
+        x = -1
+        match x:
+            case -1:
+                y = 0
+        self.assertEqual(x, -1)
+        self.assertEqual(y, 0)
+
+    def test_patma_100(self):
+        x = -1.5
+        match x:
+            case -1.5:
+                y = 0
+        self.assertEqual(x, -1.5)
+        self.assertEqual(y, 0)
+
+    def test_patma_101(self):
+        x = -1j
+        match x:
+            case -1j:
+                y = 0
+        self.assertEqual(x, -1j)
+        self.assertEqual(y, 0)
+
+    def test_patma_102(self):
+        x = -1.5j
+        match x:
+            case -1.5j:
+                y = 0
+        self.assertEqual(x, -1.5j)
+        self.assertEqual(y, 0)
+
+    def test_patma_103(self):
+        x = 0
+        match x:
+            case 0 + 0j:
+                y = 0
+        self.assertEqual(x, 0)
+        self.assertEqual(y, 0)
+
+    def test_patma_104(self):
+        x = 0
+        match x:
+            case 0 - 0j:
+                y = 0
+        self.assertEqual(x, 0)
+        self.assertEqual(y, 0)
+
+    def test_patma_105(self):
+        x = 0
+        match x:
+            case -0 + 0j:
+                y = 0
+        self.assertEqual(x, 0)
+        self.assertEqual(y, 0)
+
+    def test_patma_106(self):
+        x = 0
+        match x:
+            case -0 - 0j:
+                y = 0
+        self.assertEqual(x, 0)
+        self.assertEqual(y, 0)
+
+    def test_patma_107(self):
+        x = 0.25 + 1.75j
+        match x:
+            case 0.25 + 1.75j:
+                y = 0
+        self.assertEqual(x, 0.25 + 1.75j)
+        self.assertEqual(y, 0)
+
+    def test_patma_108(self):
+        x = 0.25 - 1.75j
+        match x:
+            case 0.25 - 1.75j:
+                y = 0
+        self.assertEqual(x, 0.25 - 1.75j)
+        self.assertEqual(y, 0)
+
+    def test_patma_109(self):
+        x = -0.25 + 1.75j
+        match x:
+            case -0.25 + 1.75j:
+                y = 0
+        self.assertEqual(x, -0.25 + 1.75j)
+        self.assertEqual(y, 0)
+
+    def test_patma_110(self):
+        x = -0.25 - 1.75j
+        match x:
+            case -0.25 - 1.75j:
+                y = 0
+        self.assertEqual(x, -0.25 - 1.75j)
+        self.assertEqual(y, 0)
+
+    def test_patma_111(self):
+        class A:
+            B = 0
+        x = 0
+        match x:
+            case A.B:
+                y = 0
+        self.assertEqual(A.B, 0)
+        self.assertEqual(x, 0)
+        self.assertEqual(y, 0)
+
+    def test_patma_112(self):
+        class A:
+            class B:
+                C = 0
+        x = 0
+        match x:
+            case A.B.C:
+                y = 0
+        self.assertEqual(A.B.C, 0)
+        self.assertEqual(x, 0)
+        self.assertEqual(y, 0)
+
+    def test_patma_113(self):
+        class A:
+            class B:
+                C = 0
+                D = 1
+        x = 1
+        match x:
+            case A.B.C:
+                y = 0
+            case A.B.D:
+                y = 1
+        self.assertEqual(A.B.C, 0)
+        self.assertEqual(A.B.D, 1)
+        self.assertEqual(x, 1)
+        self.assertEqual(y, 1)
+
+    def test_patma_114(self):
+        class A:
+            class B:
+                class C:
+                    D = 0
+        x = 0
+        match x:
+            case A.B.C.D:
+                y = 0
+        self.assertEqual(A.B.C.D, 0)
+        self.assertEqual(x, 0)
+        self.assertEqual(y, 0)
+
+    def test_patma_115(self):
+        class A:
+            class B:
+                class C:
+                    D = 0
+                    E = 1
+        x = 1
+        match x:
+            case A.B.C.D:
+                y = 0
+            case A.B.C.E:
+                y = 1
+        self.assertEqual(A.B.C.D, 0)
+        self.assertEqual(A.B.C.E, 1)
+        self.assertEqual(x, 1)
+        self.assertEqual(y, 1)
+
+    def test_patma_116(self):
+        match = case = 0
+        match match:
+            case case:
+                x = 0
+        self.assertEqual(match, 0)
+        self.assertEqual(case, 0)
+        self.assertEqual(x, 0)
+
+    def test_patma_117(self):
+        match = case = 0
+        match case:
+            case match:
+                x = 0
+        self.assertEqual(match, 0)
+        self.assertEqual(case, 0)
+        self.assertEqual(x, 0)
+
+    def test_patma_118(self):
+        x = []
+        match x:
+            case [*_, _]:
+                y = 0
+            case []:
+                y = 1
+        self.assertEqual(x, [])
+        self.assertEqual(y, 1)
+
+    def test_patma_119(self):
+        x = collections.defaultdict(int)
+        match x:
+            case {0: 0}:
+                y = 0
+            case {}:
+                y = 1
+        self.assertEqual(x, {})
+        self.assertEqual(y, 1)
+
+    def test_patma_120(self):
+        x = collections.defaultdict(int)
+        match x:
+            case {0: 0}:
+                y = 0
+            case {**z}:
+                y = 1
+        self.assertEqual(x, {})
+        self.assertEqual(y, 1)
+        self.assertEqual(z, {})
+
+    def test_patma_121(self):
+        match ():
+            case ():
+                x = 0
+        self.assertEqual(x, 0)
+
+    def test_patma_122(self):
+        match (0, 1, 2):
+            case (*x,):
+                y = 0
+        self.assertEqual(x, [0, 1, 2])
+        self.assertEqual(y, 0)
+
+    def test_patma_123(self):
+        match (0, 1, 2):
+            case 0, *x:
+                y = 0
+        self.assertEqual(x, [1, 2])
+        self.assertEqual(y, 0)
+
+    def test_patma_124(self):
+        match (0, 1, 2):
+            case (0, 1, *x,):
+                y = 0
+        self.assertEqual(x, [2])
+        self.assertEqual(y, 0)
+
+    def test_patma_125(self):
+        match (0, 1, 2):
+            case 0, 1, 2, *x:
+                y = 0
+        self.assertEqual(x, [])
+        self.assertEqual(y, 0)
+
+    def test_patma_126(self):
+        match (0, 1, 2):
+            case *x, 2,:
+                y = 0
+        self.assertEqual(x, [0, 1])
+        self.assertEqual(y, 0)
+
+    def test_patma_127(self):
+        match (0, 1, 2):
+            case (*x, 1, 2):
+                y = 0
+        self.assertEqual(x, [0])
+        self.assertEqual(y, 0)
+
+    def test_patma_128(self):
+        match (0, 1, 2):
+            case *x, 0, 1, 2,:
+                y = 0
+        self.assertEqual(x, [])
+        self.assertEqual(y, 0)
+
+    def test_patma_129(self):
+        match (0, 1, 2):
+            case (0, *x, 2):
+                y = 0
+        self.assertEqual(x, [1])
+        self.assertEqual(y, 0)
+
+    def test_patma_130(self):
+        match (0, 1, 2):
+            case 0, 1, *x, 2,:
+                y = 0
+        self.assertEqual(x, [])
+        self.assertEqual(y, 0)
+
+    def test_patma_131(self):
+        match (0, 1, 2):
+            case (0, *x, 1, 2):
+                y = 0
+        self.assertEqual(x, [])
+        self.assertEqual(y, 0)
+
+    def test_patma_132(self):
+        match (0, 1, 2):
+            case *x,:
+                y = 0
+        self.assertEqual(x, [0, 1, 2])
+        self.assertEqual(y, 0)
+
+    def test_patma_133(self):
+        x = collections.defaultdict(int, {0: 1})
+        match x:
+            case {1: 0}:
+                y = 0
+            case {0: 0}:
+                y = 1
+            case {}:
+                y = 2
+        self.assertEqual(x, {0: 1})
+        self.assertEqual(y, 2)
+
+    def test_patma_134(self):
+        x = collections.defaultdict(int, {0: 1})
+        match x:
+            case {1: 0}:
+                y = 0
+            case {0: 0}:
+                y = 1
+            case {**z}:
+                y = 2
+        self.assertEqual(x, {0: 1})
+        self.assertEqual(y, 2)
+        self.assertEqual(z, {0: 1})
+
+    def test_patma_135(self):
+        x = collections.defaultdict(int, {0: 1})
+        match x:
+            case {1: 0}:
+                y = 0
+            case {0: 0}:
+                y = 1
+            case {0: _, **z}:
+                y = 2
+        self.assertEqual(x, {0: 1})
+        self.assertEqual(y, 2)
+        self.assertEqual(z, {})
+
+    def test_patma_136(self):
+        x = {0: 1}
+        match x:
+            case {1: 0}:
+                y = 0
+            case {0: 0}:
+                y = 0
+            case {}:
+                y = 1
+        self.assertEqual(x, {0: 1})
+        self.assertEqual(y, 1)
+
+    def test_patma_137(self):
+        x = {0: 1}
+        match x:
+            case {1: 0}:
+                y = 0
+            case {0: 0}:
+                y = 0
+            case {**z}:
+                y = 1
+        self.assertEqual(x, {0: 1})
+        self.assertEqual(y, 1)
+        self.assertEqual(z, {0: 1})
+
+    def test_patma_138(self):
+        x = {0: 1}
+        match x:
+            case {1: 0}:
+                y = 0
+            case {0: 0}:
+                y = 0
+            case {0: _, **z}:
+                y = 1
+        self.assertEqual(x, {0: 1})
+        self.assertEqual(y, 1)
+        self.assertEqual(z, {})
+
+    def test_patma_139(self):
+        x = False
+        match x:
+            case bool(z):
+                y = 0
+        self.assertIs(x, False)
+        self.assertEqual(y, 0)
+        self.assertIs(z, x)
+
+    def test_patma_140(self):
+        x = True
+        match x:
+            case bool(z):
+                y = 0
+        self.assertIs(x, True)
+        self.assertEqual(y, 0)
+        self.assertIs(z, x)
+
+    def test_patma_141(self):
+        x = bytearray()
+        match x:
+            case bytearray(z):
+                y = 0
+        self.assertEqual(x, bytearray())
+        self.assertEqual(y, 0)
+        self.assertIs(z, x)
+
+    def test_patma_142(self):
+        x = b""
+        match x:
+            case bytes(z):
+                y = 0
+        self.assertEqual(x, b"")
+        self.assertEqual(y, 0)
+        self.assertIs(z, x)
+
+    def test_patma_143(self):
+        x = {}
+        match x:
+            case dict(z):
+                y = 0
+        self.assertEqual(x, {})
+        self.assertEqual(y, 0)
+        self.assertIs(z, x)
+
+    def test_patma_144(self):
+        x = 0.0
+        match x:
+            case float(z):
+                y = 0
+        self.assertEqual(x, 0.0)
+        self.assertEqual(y, 0)
+        self.assertIs(z, x)
+
+    def test_patma_145(self):
+        x = frozenset()
+        match x:
+            case frozenset(z):
+                y = 0
+        self.assertEqual(x, frozenset())
+        self.assertEqual(y, 0)
+        self.assertIs(z, x)
+
+    def test_patma_146(self):
+        x = 0
+        match x:
+            case int(z):
+                y = 0
+        self.assertEqual(x, 0)
+        self.assertEqual(y, 0)
+        self.assertIs(z, x)
+
+    def test_patma_147(self):
+        x = []
+        match x:
+            case list(z):
+                y = 0
+        self.assertEqual(x, [])
+        self.assertEqual(y, 0)
+        self.assertIs(z, x)
+
+    def test_patma_148(self):
+        x = set()
+        match x:
+            case set(z):
+                y = 0
+        self.assertEqual(x, set())
+        self.assertEqual(y, 0)
+        self.assertIs(z, x)
+
+    def test_patma_149(self):
+        x = ""
+        match x:
+            case str(z):
+                y = 0
+        self.assertEqual(x, "")
+        self.assertEqual(y, 0)
+        self.assertIs(z, x)
+
+    def test_patma_150(self):
+        x = ()
+        match x:
+            case tuple(z):
+                y = 0
+        self.assertEqual(x, ())
+        self.assertEqual(y, 0)
+        self.assertIs(z, x)
+
+    def test_patma_151(self):
+        x = 0
+        match x,:
+            case y,:
+                z = 0
+        self.assertEqual(x, 0)
+        self.assertIs(y, x)
+        self.assertIs(z, 0)
+
+    def test_patma_152(self):
+        w = 0
+        x = 0
+        match w, x:
+            case y, z:
+                v = 0
+        self.assertEqual(w, 0)
+        self.assertEqual(x, 0)
+        self.assertIs(y, w)
+        self.assertIs(z, x)
+        self.assertEqual(v, 0)
+
+    def test_patma_153(self):
+        x = 0
+        match w := x,:
+            case y as v,:
+                z = 0
+        self.assertEqual(x, 0)
+        self.assertIs(y, x)
+        self.assertEqual(z, 0)
+        self.assertIs(w, x)
+        self.assertIs(v, y)
+
+    def test_patma_154(self):
+        x = 0
+        y = None
+        match x:
+            case 0 if x:
+                y = 0
+        self.assertEqual(x, 0)
+        self.assertIs(y, None)
+
+    def test_patma_155(self):
+        x = 0
+        y = None
+        match x:
+            case 1e1000:
+                y = 0
+        self.assertEqual(x, 0)
+        self.assertIs(y, None)
+
+    def test_patma_156(self):
+        x = 0
+        match x:
+            case z:
+                y = 0
+        self.assertEqual(x, 0)
+        self.assertEqual(y, 0)
+        self.assertIs(z, x)
+
+    def test_patma_157(self):
+        x = 0
+        y = None
+        match x:
+            case _ if x:
+                y = 0
+        self.assertEqual(x, 0)
+        self.assertIs(y, None)
+
+    def test_patma_158(self):
+        x = 0
+        match x:
+            case -1e1000:
+                y = 0
+            case 0:
+                y = 1
+        self.assertEqual(x, 0)
+        self.assertEqual(y, 1)
+
+    def test_patma_159(self):
+        x = 0
+        match x:
+            case 0 if not x:
+                y = 0
+            case 1:
+                y = 1
+        self.assertEqual(x, 0)
+        self.assertEqual(y, 0)
+
+    def test_patma_160(self):
+        x = 0
+        z = None
+        match x:
+            case 0:
+                y = 0
+            case z if x:
+                y = 1
+        self.assertEqual(x, 0)
+        self.assertEqual(y, 0)
+        self.assertIs(z, None)
+
+    def test_patma_161(self):
+        x = 0
+        match x:
+            case 0:
+                y = 0
+            case _:
+                y = 1
+        self.assertEqual(x, 0)
+        self.assertEqual(y, 0)
+
+    def test_patma_162(self):
+        x = 0
+        match x:
+            case 1 if x:
+                y = 0
+            case 0:
+                y = 1
+        self.assertEqual(x, 0)
+        self.assertEqual(y, 1)
+
+    def test_patma_163(self):
+        x = 0
+        y = None
+        match x:
+            case 1:
+                y = 0
+            case 1 if not x:
+                y = 1
+        self.assertEqual(x, 0)
+        self.assertIs(y, None)
+
+    def test_patma_164(self):
+        x = 0
+        match x:
+            case 1:
+                y = 0
+            case z:
+                y = 1
+        self.assertEqual(x, 0)
+        self.assertEqual(y, 1)
+        self.assertIs(z, x)
+
+    def test_patma_165(self):
+        x = 0
+        match x:
+            case 1 if x:
+                y = 0
+            case _:
+                y = 1
+        self.assertEqual(x, 0)
+        self.assertEqual(y, 1)
+
+    def test_patma_166(self):
+        x = 0
+        match x:
+            case z if not z:
+                y = 0
+            case 0 if x:
+                y = 1
+        self.assertEqual(x, 0)
+        self.assertEqual(y, 0)
+        self.assertIs(z, x)
+
+    def test_patma_167(self):
+        x = 0
+        match x:
+            case z if not z:
+                y = 0
+            case 1:
+                y = 1
+        self.assertEqual(x, 0)
+        self.assertEqual(y, 0)
+        self.assertIs(z, x)
+
+    def test_patma_168(self):
+        x = 0
+        match x:
+            case z if not x:
+                y = 0
+            case z:
+                y = 1
+        self.assertEqual(x, 0)
+        self.assertEqual(y, 0)
+        self.assertIs(z, x)
+
+    def test_patma_169(self):
+        x = 0
+        match x:
+            case z if not z:
+                y = 0
+            case _ if x:
+                y = 1
+        self.assertEqual(x, 0)
+        self.assertEqual(y, 0)
+        self.assertIs(z, x)
+
+    def test_patma_170(self):
+        x = 0
+        match x:
+            case _ if not x:
+                y = 0
+            case 0:
+                y = 1
+        self.assertEqual(x, 0)
+        self.assertEqual(y, 0)
+
+    def test_patma_171(self):
+        x = 0
+        y = None
+        match x:
+            case _ if x:
+                y = 0
+            case 1:
+                y = 1
+        self.assertEqual(x, 0)
+        self.assertIs(y, None)
+
+    def test_patma_172(self):
+        x = 0
+        z = None
+        match x:
+            case _ if not x:
+                y = 0
+            case z if not x:
+                y = 1
+        self.assertEqual(x, 0)
+        self.assertEqual(y, 0)
+        self.assertIs(z, None)
+
+    def test_patma_173(self):
+        x = 0
+        match x:
+            case _ if not x:
+                y = 0
+            case _:
+                y = 1
+        self.assertEqual(x, 0)
+        self.assertEqual(y, 0)
+
+    def test_patma_174(self):
+        def http_error(status):
+            match status:
+                case 400:
+                    return "Bad request"
+                case 401:
+                    return "Unauthorized"
+                case 403:
+                    return "Forbidden"
+                case 404:
+                    return "Not found"
+                case 418:
+                    return "I'm a teapot"
+                case _:
+                    return "Something else"
+        self.assertEqual(http_error(400), "Bad request")
+        self.assertEqual(http_error(401), "Unauthorized")
+        self.assertEqual(http_error(403), "Forbidden")
+        self.assertEqual(http_error(404), "Not found")
+        self.assertEqual(http_error(418), "I'm a teapot")
+        self.assertEqual(http_error(123), "Something else")
+        self.assertEqual(http_error("400"), "Something else")
+        self.assertEqual(http_error(401 | 403 | 404), "Something else")  # 407
+
+    def test_patma_175(self):
+        def http_error(status):
+            match status:
+                case 400:
+                    return "Bad request"
+                case 401 | 403 | 404:
+                    return "Not allowed"
+                case 418:
+                    return "I'm a teapot"
+        self.assertEqual(http_error(400), "Bad request")
+        self.assertEqual(http_error(401), "Not allowed")
+        self.assertEqual(http_error(403), "Not allowed")
+        self.assertEqual(http_error(404), "Not allowed")
+        self.assertEqual(http_error(418), "I'm a teapot")
+        self.assertIs(http_error(123), None)
+        self.assertIs(http_error("400"), None)
+        self.assertIs(http_error(401 | 403 | 404), None)  # 407
+
+    @no_perf
+    def test_patma_176(self):
+        def whereis(point):
+            match point:
+                case (0, 0):
+                    return "Origin"
+                case (0, y):
+                    return f"Y={y}"
+                case (x, 0):
+                    return f"X={x}"
+                case (x, y):
+                    return f"X={x}, Y={y}"
+                case _:
+                    raise ValueError("Not a point")
+        self.assertEqual(whereis((0, 0)), "Origin")
+        self.assertEqual(whereis((0, -1.0)), "Y=-1.0")
+        self.assertEqual(whereis(("X", 0)), "X=X")
+        self.assertEqual(whereis((None, 1j)), "X=None, Y=1j")
+        with self.assertRaises(ValueError):
+            whereis(42)
+
+    def test_patma_177(self):
+        def whereis(point):
+            match point:
+                case Point(0, 0):
+                    return "Origin"
+                case Point(0, y):
+                    return f"Y={y}"
+                case Point(x, 0):
+                    return f"X={x}"
+                case Point():
+                    return "Somewhere else"
+                case _:
+                    return "Not a point"
+        self.assertEqual(whereis(Point(1, 0)), "X=1")
+        self.assertEqual(whereis(Point(0, 0)), "Origin")
+        self.assertEqual(whereis(10), "Not a point")
+        self.assertEqual(whereis(Point(False, False)), "Origin")
+        self.assertEqual(whereis(Point(0, -1.0)), "Y=-1.0")
+        self.assertEqual(whereis(Point("X", 0)), "X=X")
+        self.assertEqual(whereis(Point(None, 1j)), "Somewhere else")
+        self.assertEqual(whereis(Point), "Not a point")
+        self.assertEqual(whereis(42), "Not a point")
+
+    def test_patma_178(self):
+        def whereis(point):
+            match point:
+                case Point(1, var):
+                    return var
+        self.assertEqual(whereis(Point(1, 0)), 0)
+        self.assertIs(whereis(Point(0, 0)), None)
+
+    def test_patma_179(self):
+        def whereis(point):
+            match point:
+                case Point(1, y=var):
+                    return var
+        self.assertEqual(whereis(Point(1, 0)), 0)
+        self.assertIs(whereis(Point(0, 0)), None)
+
+    def test_patma_180(self):
+        def whereis(point):
+            match point:
+                case Point(x=1, y=var):
+                    return var
+        self.assertEqual(whereis(Point(1, 0)), 0)
+        self.assertIs(whereis(Point(0, 0)), None)
+
+    def test_patma_181(self):
+        def whereis(point):
+            match point:
+                case Point(y=var, x=1):
+                    return var
+        self.assertEqual(whereis(Point(1, 0)), 0)
+        self.assertIs(whereis(Point(0, 0)), None)
+
+    def test_patma_182(self):
+        def whereis(points):
+            match points:
+                case []:
+                    return "No points"
+                case [Point(0, 0)]:
+                    return "The origin"
+                case [Point(x, y)]:
+                    return f"Single point {x}, {y}"
+                case [Point(0, y1), Point(0, y2)]:
+                    return f"Two on the Y axis at {y1}, {y2}"
+                case _:
+                    return "Something else"
+        self.assertEqual(whereis([]), "No points")
+        self.assertEqual(whereis([Point(0, 0)]), "The origin")
+        self.assertEqual(whereis([Point(0, 1)]), "Single point 0, 1")
+        self.assertEqual(whereis([Point(0, 0), Point(0, 0)]), "Two on the Y axis at 0, 0")
+        self.assertEqual(whereis([Point(0, 1), Point(0, 1)]), "Two on the Y axis at 1, 1")
+        self.assertEqual(whereis([Point(0, 0), Point(1, 0)]), "Something else")
+        self.assertEqual(whereis([Point(0, 0), Point(0, 0), Point(0, 0)]), "Something else")
+        self.assertEqual(whereis([Point(0, 1), Point(0, 1), Point(0, 1)]), "Something else")
+
+    def test_patma_183(self):
+        def whereis(point):
+            match point:
+                case Point(x, y) if x == y:
+                    return f"Y=X at {x}"
+                case Point(x, y):
+                    return "Not on the diagonal"
+        self.assertEqual(whereis(Point(0, 0)), "Y=X at 0")
+        self.assertEqual(whereis(Point(0, False)), "Y=X at 0")
+        self.assertEqual(whereis(Point(False, 0)), "Y=X at False")
+        self.assertEqual(whereis(Point(-1 - 1j, -1 - 1j)), "Y=X at (-1-1j)")
+        self.assertEqual(whereis(Point("X", "X")), "Y=X at X")
+        self.assertEqual(whereis(Point("X", "x")), "Not on the diagonal")
+
+    def test_patma_184(self):
+        class Seq(collections.abc.Sequence):
+            __getitem__ = None
+            def __len__(self):
+                return 0
+        match Seq():
+            case []:
+                y = 0
+        self.assertEqual(y, 0)
+
+    def test_patma_185(self):
+        class Seq(collections.abc.Sequence):
+            __getitem__ = None
+            def __len__(self):
+                return 42
+        match Seq():
+            case [*_]:
+                y = 0
+        self.assertEqual(y, 0)
+
+    def test_patma_186(self):
+        class Seq(collections.abc.Sequence):
+            def __getitem__(self, i):
+                return i
+            def __len__(self):
+                return 42
+        match Seq():
+            case [x, *_, y]:
+                z = 0
+        self.assertEqual(x, 0)
+        self.assertEqual(y, 41)
+        self.assertEqual(z, 0)
+
+    def test_patma_187(self):
+        w = range(10)
+        match w:
+            case [x, y, *rest]:
+                z = 0
+        self.assertEqual(w, range(10))
+        self.assertEqual(x, 0)
+        self.assertEqual(y, 1)
+        self.assertEqual(z, 0)
+        self.assertEqual(rest, list(range(2, 10)))
+
+    def test_patma_188(self):
+        w = range(100)
+        match w:
+            case (x, y, *rest):
+                z = 0
+        self.assertEqual(w, range(100))
+        self.assertEqual(x, 0)
+        self.assertEqual(y, 1)
+        self.assertEqual(z, 0)
+        self.assertEqual(rest, list(range(2, 100)))
+
+    def test_patma_189(self):
+        w = range(1000)
+        match w:
+            case x, y, *rest:
+                z = 0
+        self.assertEqual(w, range(1000))
+        self.assertEqual(x, 0)
+        self.assertEqual(y, 1)
+        self.assertEqual(z, 0)
+        self.assertEqual(rest, list(range(2, 1000)))
+
+    def test_patma_190(self):
+        w = range(1 << 10)
+        match w:
+            case [x, y, *_]:
+                z = 0
+        self.assertEqual(w, range(1 << 10))
+        self.assertEqual(x, 0)
+        self.assertEqual(y, 1)
+        self.assertEqual(z, 0)
+
+    def test_patma_191(self):
+        w = range(1 << 20)
+        match w:
+            case (x, y, *_):
+                z = 0
+        self.assertEqual(w, range(1 << 20))
+        self.assertEqual(x, 0)
+        self.assertEqual(y, 1)
+        self.assertEqual(z, 0)
+
+    def test_patma_192(self):
+        w = range(1 << 30)
+        match w:
+            case x, y, *_:
+                z = 0
+        self.assertEqual(w, range(1 << 30))
+        self.assertEqual(x, 0)
+        self.assertEqual(y, 1)
+        self.assertEqual(z, 0)
+
+    def test_patma_193(self):
+        x = {"bandwidth": 0, "latency": 1}
+        match x:
+            case {"bandwidth": b, "latency": l}:
+                y = 0
+        self.assertEqual(x, {"bandwidth": 0, "latency": 1})
+        self.assertIs(b, x["bandwidth"])
+        self.assertIs(l, x["latency"])
+        self.assertEqual(y, 0)
+
+    def test_patma_194(self):
+        x = {"bandwidth": 0, "latency": 1, "key": "value"}
+        match x:
+            case {"latency": l, "bandwidth": b}:
+                y = 0
+        self.assertEqual(x, {"bandwidth": 0, "latency": 1, "key": "value"})
+        self.assertIs(l, x["latency"])
+        self.assertIs(b, x["bandwidth"])
+        self.assertEqual(y, 0)
+
+    def test_patma_195(self):
+        x = {"bandwidth": 0, "latency": 1, "key": "value"}
+        match x:
+            case {"bandwidth": b, "latency": l, **rest}:
+                y = 0
+        self.assertEqual(x, {"bandwidth": 0, "latency": 1, "key": "value"})
+        self.assertIs(b, x["bandwidth"])
+        self.assertIs(l, x["latency"])
+        self.assertEqual(rest, {"key": "value"})
+        self.assertEqual(y, 0)
+
+    def test_patma_196(self):
+        x = {"bandwidth": 0, "latency": 1}
+        match x:
+            case {"latency": l, "bandwidth": b, **rest}:
+                y = 0
+        self.assertEqual(x, {"bandwidth": 0, "latency": 1})
+        self.assertIs(l, x["latency"])
+        self.assertIs(b, x["bandwidth"])
+        self.assertEqual(rest, {})
+        self.assertEqual(y, 0)
+
+    def test_patma_197(self):
+        w = [Point(-1, 0), Point(1, 2)]
+        match w:
+            case (Point(x1, y1), Point(x2, y2) as p2):
+                z = 0
+        self.assertEqual(w, [Point(-1, 0), Point(1, 2)])
+        self.assertIs(x1, w[0].x)
+        self.assertIs(y1, w[0].y)
+        self.assertIs(p2, w[1])
+        self.assertIs(x2, w[1].x)
+        self.assertIs(y2, w[1].y)
+        self.assertIs(z, 0)
+
+    def test_patma_198(self):
+        class Color(enum.Enum):
+            RED = 0
+            GREEN = 1
+            BLUE = 2
+        def f(color):
+            match color:
+                case Color.RED:
+                    return "I see red!"
+                case Color.GREEN:
+                    return "Grass is green"
+                case Color.BLUE:
+                    return "I'm feeling the blues :("
+        self.assertEqual(f(Color.RED), "I see red!")
+        self.assertEqual(f(Color.GREEN), "Grass is green")
+        self.assertEqual(f(Color.BLUE), "I'm feeling the blues :(")
+        self.assertIs(f(Color), None)
+        self.assertIs(f(0), None)
+        self.assertIs(f(1), None)
+        self.assertIs(f(2), None)
+        self.assertIs(f(3), None)
+        self.assertIs(f(False), None)
+        self.assertIs(f(True), None)
+        self.assertIs(f(2+0j), None)
+        self.assertIs(f(3.0), None)
+
+    def test_patma_199(self):
+        class Color(int, enum.Enum):
+            RED = 0
+            GREEN = 1
+            BLUE = 2
+        def f(color):
+            match color:
+                case Color.RED:
+                    return "I see red!"
+                case Color.GREEN:
+                    return "Grass is green"
+                case Color.BLUE:
+                    return "I'm feeling the blues :("
+        self.assertEqual(f(Color.RED), "I see red!")
+        self.assertEqual(f(Color.GREEN), "Grass is green")
+        self.assertEqual(f(Color.BLUE), "I'm feeling the blues :(")
+        self.assertIs(f(Color), None)
+        self.assertEqual(f(0), "I see red!")
+        self.assertEqual(f(1), "Grass is green")
+        self.assertEqual(f(2), "I'm feeling the blues :(")
+        self.assertIs(f(3), None)
+        self.assertEqual(f(False), "I see red!")
+        self.assertEqual(f(True), "Grass is green")
+        self.assertEqual(f(2+0j), "I'm feeling the blues :(")
+        self.assertIs(f(3.0), None)
+
+    def test_patma_200(self):
+        class Class:
+            __match_args__ = ["a", "b"]
+        c = Class()
+        c.a = 0
+        c.b = 1
+        match c:
+            case Class(x, y):
+                z = 0
+        self.assertIs(x, c.a)
+        self.assertIs(y, c.b)
+        self.assertEqual(z, 0)
+
+    def test_patma_201(self):
+        class Class:
+            __match_args__ = ("a", "b")
+        c = Class()
+        c.a = 0
+        c.b = 1
+        match c:
+            case Class(x, b=y):
+                z = 0
+        self.assertIs(x, c.a)
+        self.assertIs(y, c.b)
+        self.assertEqual(z, 0)
+
+    def test_patma_202(self):
+        class Parent:
+            __match_args__ = "a", "b"
+        class Child(Parent):
+            __match_args__ = ["c", "d"]
+        c = Child()
+        c.a = 0
+        c.b = 1
+        match c:
+            case Parent(x, y):
+                z = 0
+        self.assertIs(x, c.a)
+        self.assertIs(y, c.b)
+        self.assertEqual(z, 0)
+
+    def test_patma_203(self):
+        class Parent:
+            __match_args__ = ("a", "b")
+        class Child(Parent):
+            __match_args__ = "c", "d"
+        c = Child()
+        c.a = 0
+        c.b = 1
+        match c:
+            case Parent(x, b=y):
+                z = 0
+        self.assertIs(x, c.a)
+        self.assertIs(y, c.b)
+        self.assertEqual(z, 0)
+
+    def test_patma_204(self):
+        def f(w):
+            match w:
+                case 42:
+                    out = locals()
+                    del out["w"]
+                    return out
+        self.assertEqual(f(42), {})
+        self.assertIs(f(0), None)
+        self.assertEqual(f(42.0), {})
+        self.assertIs(f("42"), None)
+
+    def test_patma_205(self):
+        def f(w):
+            match w:
+                case 42.0:
+                    out = locals()
+                    del out["w"]
+                    return out
+        self.assertEqual(f(42.0), {})
+        self.assertEqual(f(42), {})
+        self.assertIs(f(0.0), None)
+        self.assertIs(f(0), None)
+
+    def test_patma_206(self):
+        def f(w):
+            match w:
+                case 1 | 2 | 3:
+                    out = locals()
+                    del out["w"]
+                    return out
+        self.assertEqual(f(1), {})
+        self.assertEqual(f(2), {})
+        self.assertEqual(f(3), {})
+        self.assertEqual(f(3.0), {})
+        self.assertIs(f(0), None)
+        self.assertIs(f(4), None)
+        self.assertIs(f("1"), None)
+
+    def test_patma_207(self):
+        def f(w):
+            match w:
+                case [1, 2] | [3, 4]:
+                    out = locals()
+                    del out["w"]
+                    return out
+        self.assertEqual(f([1, 2]), {})
+        self.assertEqual(f([3, 4]), {})
+        self.assertIs(f(42), None)
+        self.assertIs(f([2, 3]), None)
+        self.assertIs(f([1, 2, 3]), None)
+        self.assertEqual(f([1, 2.0]), {})
+
+    def test_patma_208(self):
+        def f(w):
+            match w:
+                case x:
+                    out = locals()
+                    del out["w"]
+                    return out
+        self.assertEqual(f(42), {"x": 42})
+        self.assertEqual(f((1, 2)), {"x": (1, 2)})
+        self.assertEqual(f(None), {"x": None})
+
+    def test_patma_209(self):
+        def f(w):
+            match w:
+                case _:
+                    out = locals()
+                    del out["w"]
+                    return out
+        self.assertEqual(f(42), {})
+        self.assertEqual(f(None), {})
+        self.assertEqual(f((1, 2)), {})
+
+    def test_patma_210(self):
+        def f(w):
+            match w:
+                case (x, y, z):
+                    out = locals()
+                    del out["w"]
+                    return out
+        self.assertEqual(f((1, 2, 3)), {"x": 1, "y": 2, "z": 3})
+        self.assertIs(f((1, 2)), None)
+        self.assertIs(f((1, 2, 3, 4)), None)
+        self.assertIs(f(123), None)
+        self.assertIs(f("abc"), None)
+        self.assertIs(f(b"abc"), None)
+        self.assertEqual(f(array.array("b", b"abc")), {'x': 97, 'y': 98, 'z': 99})
+        self.assertEqual(f(memoryview(b"abc")), {"x": 97, "y": 98, "z": 99})
+        self.assertIs(f(bytearray(b"abc")), None)
+
+    def test_patma_211(self):
+        def f(w):
+            match w:
+                case {"x": x, "y": "y", "z": z}:
+                    out = locals()
+                    del out["w"]
+                    return out
+        self.assertEqual(f({"x": "x", "y": "y", "z": "z"}), {"x": "x", "z": "z"})
+        self.assertEqual(f({"x": "x", "y": "y", "z": "z", "a": "a"}), {"x": "x", "z": "z"})
+        self.assertIs(f(({"x": "x", "y": "yy", "z": "z", "a": "a"})), None)
+        self.assertIs(f(({"x": "x", "y": "y"})), None)
+
+    def test_patma_212(self):
+        def f(w):
+            match w:
+                case MyClass(int(xx), y="hello"):
+                    out = locals()
+                    del out["w"]
+                    return out
+        self.assertEqual(f(MyClass(42, "hello")), {"xx": 42})
+
+    def test_patma_213(self):
+        def f(w):
+            match w:
+                case (p, q) as x:
+                    out = locals()
+                    del out["w"]
+                    return out
+        self.assertEqual(f((1, 2)), {"p": 1, "q": 2, "x": (1, 2)})
+        self.assertEqual(f([1, 2]), {"p": 1, "q": 2, "x": [1, 2]})
+        self.assertIs(f(12), None)
+        self.assertIs(f((1, 2, 3)), None)
+
+    def test_patma_214(self):
+        def f():
+            match 42:
+                case 42:
+                    return locals()
+        self.assertEqual(set(f()), set())
+
+    def test_patma_215(self):
+        def f():
+            match 1:
+                case 1 | 2 | 3:
+                    return locals()
+        self.assertEqual(set(f()), set())
+
+    def test_patma_216(self):
+        def f():
+            match ...:
+                case _:
+                    return locals()
+        self.assertEqual(set(f()), set())
+
+    def test_patma_217(self):
+        def f():
+            match ...:
+                case abc:
+                    return locals()
+        self.assertEqual(set(f()), {"abc"})
+
+    @no_perf
+    def test_patma_218(self):
+        self.assert_syntax_error("""
+        match ...:
+            case "a" | a:
+                pass
+        """)
+
+    @no_perf
+    def test_patma_219(self):
+        self.assert_syntax_error("""
+        match ...:
+            case a | "a":
+                pass
+        """)
+
+    def test_patma_220(self):
+        def f():
+            match ..., ...:
+                case a, b:
+                    return locals()
+        self.assertEqual(set(f()), {"a", "b"})
+
+    @no_perf
+    def test_patma_221(self):
+        self.assert_syntax_error("""
+        match ...:
+            case a, a:
+                pass
+        """)
+
+    def test_patma_222(self):
+        def f():
+            match {"k": ..., "l": ...}:
+                case {"k": a, "l": b}:
+                    return locals()
+        self.assertEqual(set(f()), {"a", "b"})
+
+    @no_perf
+    def test_patma_223(self):
+        self.assert_syntax_error("""
+        match ...:
+            case {"k": a, "l": a}:
+                pass
+        """)
+
+    def test_patma_224(self):
+        def f():
+            match MyClass(..., ...):
+                case MyClass(x, y=y):
+                    return locals()
+        self.assertEqual(set(f()), {"x", "y"})
+
+    @no_perf
+    def test_patma_225(self):
+        self.assert_syntax_error("""
+        match ...:
+            case MyClass(x, x):
+                pass
+        """)
+
+    @no_perf
+    def test_patma_226(self):
+        self.assert_syntax_error("""
+        match ...:
+            case MyClass(x=x, y=x):
+                pass
+        """)
+
+    @no_perf
+    def test_patma_227(self):
+        self.assert_syntax_error("""
+        match ...:
+            case MyClass(x, y=x):
+                pass
+        """)
+
+    def test_patma_228(self):
+        def f():
+            match ...:
+                case b as a:
+                    return locals()
+        self.assertEqual(set(f()), {"a", "b"})
+
+    @no_perf
+    def test_patma_229(self):
+        self.assert_syntax_error("""
+        match ...:
+            case a as a:
+                pass
+        """)
+
+    def test_patma_230(self):
+        def f(x):
+            match x:
+                case _:
+                    return 0
+        self.assertEqual(f(0), 0)
+        self.assertEqual(f(1), 0)
+        self.assertEqual(f(2), 0)
+        self.assertEqual(f(3), 0)
+
+    def test_patma_231(self):
+        def f(x):
+            match x:
+                case 0:
+                    return 0
+        self.assertEqual(f(0), 0)
+        self.assertIs(f(1), None)
+        self.assertIs(f(2), None)
+        self.assertIs(f(3), None)
+
+    def test_patma_232(self):
+        def f(x):
+            match x:
+                case 0:
+                    return 0
+                case _:
+                    return 1
+        self.assertEqual(f(0), 0)
+        self.assertEqual(f(1), 1)
+        self.assertEqual(f(2), 1)
+        self.assertEqual(f(3), 1)
+
+    def test_patma_233(self):
+        def f(x):
+            match x:
+                case 0:
+                    return 0
+                case 1:
+                    return 1
+        self.assertEqual(f(0), 0)
+        self.assertEqual(f(1), 1)
+        self.assertIs(f(2), None)
+        self.assertIs(f(3), None)
+
+    def test_patma_234(self):
+        def f(x):
+            match x:
+                case 0:
+                    return 0
+                case 1:
+                    return 1
+                case _:
+                    return 2
+        self.assertEqual(f(0), 0)
+        self.assertEqual(f(1), 1)
+        self.assertEqual(f(2), 2)
+        self.assertEqual(f(3), 2)
+
+    def test_patma_235(self):
+        def f(x):
+            match x:
+                case 0:
+                    return 0
+                case 1:
+                    return 1
+                case 2:
+                    return 2
+        self.assertEqual(f(0), 0)
+        self.assertEqual(f(1), 1)
+        self.assertEqual(f(2), 2)
+        self.assertIs(f(3), None)
+
+    @no_perf
+    def test_patma_236(self):
+        self.assert_syntax_error("""
+        match ...:
+            case {**rest, "key": value}:
+                pass
+        """)
+
+    @no_perf
+    def test_patma_237(self):
+        self.assert_syntax_error("""
+        match ...:
+            case {"first": first, **rest, "last": last}:
+                pass
+        """)
+
+    @no_perf
+    def test_patma_238(self):
+        self.assert_syntax_error("""
+        match ...:
+            case *a, b, *c, d, *e:
+                pass
+        """)
+
+    @no_perf
+    def test_patma_239(self):
+        self.assert_syntax_error("""
+        match ...:
+            case a, *b, c, *d, e:
+                pass
+        """)
+
+    @no_perf
+    def test_patma_240(self):
+        self.assert_syntax_error("""
+        match ...:
+            case 0+0:
+                pass
+        """)
+
+    @no_perf
+    def test_patma_241(self):
+        self.assert_syntax_error("""
+        match ...:
+            case f"":
+                pass
+        """)
+
+    @no_perf
+    def test_patma_242(self):
+        self.assert_syntax_error("""
+        match ...:
+            case f"{x}":
+                pass
+        """)
+
+    @no_perf
+    def test_patma_243(self):
+        self.assert_syntax_error("""
+        match 42:
+            case x:
+                pass
+            case y:
+                pass
+        """)
+
+    @no_perf
+    def test_patma_244(self):
+        self.assert_syntax_error("""
+        match ...:
+            case {**_}:
+                pass
+        """)
+
+    @no_perf
+    def test_patma_245(self):
+        self.assert_syntax_error("""
+        match ...:
+            case 42 as _:
+                pass
+        """)
+
+    @no_perf
+    def test_patma_246(self):
+        class Class:
+            __match_args__ = None
+        x = Class()
+        y = z = None
+        with self.assertRaises(TypeError):
+            match x:
+                case Class(y):
+                    z = 0
+        self.assertIs(y, None)
+        self.assertIs(z, None)
+
+    @no_perf
+    def test_patma_247(self):
+        class Class:
+            __match_args__ = "XYZ"
+        x = Class()
+        y = z = None
+        with self.assertRaises(TypeError):
+            match x:
+                case Class(y):
+                    z = 0
+        self.assertIs(y, None)
+        self.assertIs(z, None)
+
+    @no_perf
+    def test_patma_248(self):
+        class Class:
+            __match_args__ = [None]
+        x = Class()
+        y = z = None
+        with self.assertRaises(TypeError):
+            match x:
+                case Class(y):
+                    z = 0
+        self.assertIs(y, None)
+        self.assertIs(z, None)
+
+    @no_perf
+    def test_patma_249(self):
+        class Class:
+            __match_args__ = []
+        x = Class()
+        y = z = None
+        with self.assertRaises(TypeError):
+            match x:
+                case Class(y):
+                    z = 0
+        self.assertIs(y, None)
+        self.assertIs(z, None)
+
+    @no_perf
+    def test_patma_250(self):
+        self.assert_syntax_error("""
+        match ...:
+            case Class(a=_, a=_):
+                pass
+        """)
+
+    @no_perf
+    def test_patma_251(self):
+        x = {"a": 0, "b": 1}
+        w = y = z = None
+        with self.assertRaises(ValueError):
+            match x:
+                case {"a": y, "a": z}:
+                    w = 0
+        self.assertIs(w, None)
+        self.assertIs(y, None)
+        self.assertIs(z, None)
+
+    @no_perf
+    def test_patma_252(self):
+        class Keys:
+            KEY = "a"
+        x = {"a": 0, "b": 1}
+        w = y = z = None
+        with self.assertRaises(ValueError):
+            match x:
+                case {Keys.KEY: y, "a": z}:
+                    w = 0
+        self.assertIs(w, None)
+        self.assertIs(y, None)
+        self.assertIs(z, None)
+
+    @no_perf
+    def test_patma_253(self):
+        class Class:
+            __match_args__ = ["a", "a"]
+            a = None
+        x = Class()
+        w = y = z = None
+        with self.assertRaises(TypeError):
+            match x:
+                case Class(y, z):
+                    w = 0
+        self.assertIs(w, None)
+        self.assertIs(y, None)
+        self.assertIs(z, None)
+
+    @no_perf
+    def test_patma_254(self):
+        class Class:
+            __match_args__ = ["a"]
+            a = None
+        x = Class()
+        w = y = z = None
+        with self.assertRaises(TypeError):
+            match x:
+                case Class(y, a=z):
+                    w = 0
+        self.assertIs(w, None)
+        self.assertIs(y, None)
+        self.assertIs(z, None)
+
+    def test_patma_255(self):
+        match():
+            case():
+                x = 0
+        self.assertEqual(x, 0)
+
+    def test_patma_256(self):
+        x = 0
+        match(x):
+            case(x):
+                y = 0
+        self.assertEqual(x, 0)
+        self.assertEqual(y, 0)
+
+    def test_patma_257(self):
+        x = 0
+        match x:
+            case False:
+                y = 0
+            case 0:
+                y = 1
+        self.assertEqual(x, 0)
+        self.assertEqual(y, 1)
+
+    def test_patma_258(self):
+        x = 1
+        match x:
+            case True:
+                y = 0
+            case 1:
+                y = 1
+        self.assertEqual(x, 1)
+        self.assertEqual(y, 1)
+
+    def test_patma_259(self):
+        class Eq:
+            def __eq__(self, other):
+                return True
+        x = eq = Eq()
+        y = None
+        match x:
+            case None:
+                y = 0
+        self.assertIs(x, eq)
+        self.assertEqual(y, None)
+
+    def test_patma_260(self):
+        x = False
+        match x:
+            case False:
+                y = 0
+        self.assertIs(x, False)
+        self.assertEqual(y, 0)
+
+    def test_patma_261(self):
+        x = True
+        match x:
+            case True:
+                y = 0
+        self.assertIs(x, True)
+        self.assertEqual(y, 0)
+
+    def test_patma_262(self):
+        x = None
+        match x:
+            case None:
+                y = 0
+        self.assertIs(x, None)
+        self.assertEqual(y, 0)
+
+    def test_patma_263(self):
+        x = 0
+        match x:
+            case (0 as w) as z:
+                y = 0
+        self.assertEqual(w, 0)
+        self.assertEqual(x, 0)
+        self.assertEqual(y, 0)
+        self.assertEqual(z, 0)
+
+    def test_patma_264(self):
+        x = 0
+        match x:
+            case (0 as w) as z:
+                y = 0
+        self.assertEqual(w, 0)
+        self.assertEqual(x, 0)
+        self.assertEqual(y, 0)
+        self.assertEqual(z, 0)
+
+    def test_patma_265(self):
+        x = ((0, 1), (2, 3))
+        match x:
+            case ((a as b, c as d) as e) as w, ((f as g, h) as i) as z:
+                y = 0
+        self.assertEqual(a, 0)
+        self.assertEqual(b, 0)
+        self.assertEqual(c, 1)
+        self.assertEqual(d, 1)
+        self.assertEqual(e, (0, 1))
+        self.assertEqual(f, 2)
+        self.assertEqual(g, 2)
+        self.assertEqual(h, 3)
+        self.assertEqual(i, (2, 3))
+        self.assertEqual(w, (0, 1))
+        self.assertEqual(x, ((0, 1), (2, 3)))
+        self.assertEqual(y, 0)
+        self.assertEqual(z, (2, 3))
+
+    @no_perf
+    def test_patma_266(self):
+        self.assert_syntax_error("""
+        match ...:
+            case _ | _:
+                pass
+        """)
+
+    @no_perf
+    def test_patma_267(self):
+        self.assert_syntax_error("""
+        match ...:
+            case (_ as x) | [x]:
+                pass
+        """)
+
+
+    @no_perf
+    def test_patma_268(self):
+        self.assert_syntax_error("""
+        match ...:
+            case _ | _ if condition():
+                pass
+        """)
+
+
+    @no_perf
+    def test_patma_269(self):
+        self.assert_syntax_error("""
+        match ...:
+            case x | [_ as x] if x:
+                pass
+        """)
+
+    @no_perf
+    def test_patma_270(self):
+        self.assert_syntax_error("""
+        match ...:
+            case _:
+                pass
+            case None:
+                pass
+        """)
+
+    @no_perf
+    def test_patma_271(self):
+        self.assert_syntax_error("""
+        match ...:
+            case x:
+                pass
+            case [x] if x:
+                pass
+        """)
+
+    @no_perf
+    def test_patma_272(self):
+        self.assert_syntax_error("""
+        match ...:
+            case x:
+                pass
+            case _:
+                pass
+        """)
+
+    @no_perf
+    def test_patma_273(self):
+        self.assert_syntax_error("""
+        match ...:
+            case (None | _) | _:
+                pass
+        """)
+
+    @no_perf
+    def test_patma_274(self):
+        self.assert_syntax_error("""
+        match ...:
+            case _ | (True | False):
+                pass
+        """)
+
+    def test_patma_275(self):
+        x = collections.UserDict({0: 1, 2: 3})
+        match x:
+            case {2: 3}:
+                y = 0
+        self.assertEqual(x, {0: 1, 2: 3})
+        self.assertEqual(y, 0)
+
+    def test_patma_276(self):
+        x = collections.UserDict({0: 1, 2: 3})
+        match x:
+            case {2: 3, **z}:
+                y = 0
+        self.assertEqual(x, {0: 1, 2: 3})
+        self.assertEqual(y, 0)
+        self.assertEqual(z, {0: 1})
+
+    def test_patma_277(self):
+        x = [[{0: 0}]]
+        match x:
+            case list([({-0-0j: int(real=0+0j, imag=0-0j) | (1) as z},)]):
+                y = 0
+        self.assertEqual(x, [[{0: 0}]])
+        self.assertEqual(y, 0)
+        self.assertEqual(z, 0)
+
+    def test_patma_278(self):
+        x = range(3)
+        match x:
+            case [y, *_, z]:
+                w = 0
+        self.assertEqual(w, 0)
+        self.assertEqual(x, range(3))
+        self.assertEqual(y, 0)
+        self.assertEqual(z, 2)
+
+    def test_patma_279(self):
+        x = range(3)
+        match x:
+            case [_, *_, y]:
+                z = 0
+        self.assertEqual(x, range(3))
+        self.assertEqual(y, 2)
+        self.assertEqual(z, 0)
+
+    def test_patma_280(self):
+        x = range(3)
+        match x:
+            case [*_, y]:
+                z = 0
+        self.assertEqual(x, range(3))
+        self.assertEqual(y, 2)
+        self.assertEqual(z, 0)
+
+    @no_perf
+    def test_patma_281(self):
+        x = range(10)
+        y = None
+        with self.assertRaises(TypeError):
+            match x:
+                case range(10):
+                    y = 0
+        self.assertEqual(x, range(10))
+        self.assertIs(y, None)
+
+
+class PerfPatma(TestPatma):
+
+    def assertEqual(*_, **__):
+        pass
+
+    def assertIs(*_, **__):
+        pass
+
+    def assertRaises(*_, **__):
+        assert False, "this test should be decorated with @no_perf!"
+
+    def assertWarns(*_, **__):
+        assert False, "this test should be decorated with @no_perf!"
+
+    def run_perf(self):
+        attrs = vars(TestPatma).items()
+        tests = [
+            attr for name, attr in attrs
+            if name.startswith("test_") and not hasattr(attr, "no_perf")
+        ]
+        for _ in range(1 << 8):
+            for test in tests:
+                test(self)
+
+    @staticmethod
+    def setUpClass():
+        raise unittest.SkipTest("performance testing")
+
+
+"""
+sudo ./python -m pyperf system tune && \
+     ./python -m pyperf timeit --rigorous --setup "from test.test_patma import PerfPatma; p = PerfPatma()" "p.run_perf()"; \
+sudo ./python -m pyperf system reset
+"""
diff --git a/Misc/NEWS.d/next/Core and Builtins/2020-10-23-08-54-04.bpo-42128.SWmVEm.rst b/Misc/NEWS.d/next/Core and Builtins/2020-10-23-08-54-04.bpo-42128.SWmVEm.rst
new file mode 100644
index 0000000..e779eb8
--- /dev/null
+++ b/Misc/NEWS.d/next/Core and Builtins/2020-10-23-08-54-04.bpo-42128.SWmVEm.rst
@@ -0,0 +1 @@
+Implement :pep:`634` (structural pattern matching). Patch by Brandt Bucher.
diff --git a/Objects/bytearrayobject.c b/Objects/bytearrayobject.c
index a4c10d6..1ab9621 100644
--- a/Objects/bytearrayobject.c
+++ b/Objects/bytearrayobject.c
@@ -2337,7 +2337,8 @@ PyTypeObject PyByteArray_Type = {
     PyObject_GenericGetAttr,            /* tp_getattro */
     0,                                  /* tp_setattro */
     &bytearray_as_buffer,               /* tp_as_buffer */
-    Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /* tp_flags */
+    Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE |
+        _Py_TPFLAGS_MATCH_SELF,       /* tp_flags */
     bytearray_doc,                      /* tp_doc */
     0,                                  /* tp_traverse */
     0,                                  /* tp_clear */
diff --git a/Objects/bytesobject.c b/Objects/bytesobject.c
index 5814e8a..eaedb0b 100644
--- a/Objects/bytesobject.c
+++ b/Objects/bytesobject.c
@@ -2912,7 +2912,8 @@ PyTypeObject PyBytes_Type = {
     0,                                          /* tp_setattro */
     &bytes_as_buffer,                           /* tp_as_buffer */
     Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE |
-        Py_TPFLAGS_BYTES_SUBCLASS,              /* tp_flags */
+        Py_TPFLAGS_BYTES_SUBCLASS |
+        _Py_TPFLAGS_MATCH_SELF,               /* tp_flags */
     bytes_doc,                                  /* tp_doc */
     0,                                          /* tp_traverse */
     0,                                          /* tp_clear */
diff --git a/Objects/dictobject.c b/Objects/dictobject.c
index 6ca82a7..179cb30 100644
--- a/Objects/dictobject.c
+++ b/Objects/dictobject.c
@@ -3549,7 +3549,8 @@ PyTypeObject PyDict_Type = {
     0,                                          /* tp_setattro */
     0,                                          /* tp_as_buffer */
     Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC |
-        Py_TPFLAGS_BASETYPE | Py_TPFLAGS_DICT_SUBCLASS,         /* tp_flags */
+        Py_TPFLAGS_BASETYPE | Py_TPFLAGS_DICT_SUBCLASS |
+        _Py_TPFLAGS_MATCH_SELF,               /* tp_flags */
     dictionary_doc,                             /* tp_doc */
     dict_traverse,                              /* tp_traverse */
     dict_tp_clear,                              /* tp_clear */
diff --git a/Objects/floatobject.c b/Objects/floatobject.c
index fdeb189..178f7b2 100644
--- a/Objects/floatobject.c
+++ b/Objects/floatobject.c
@@ -1945,7 +1945,8 @@ PyTypeObject PyFloat_Type = {
     PyObject_GenericGetAttr,                    /* tp_getattro */
     0,                                          /* tp_setattro */
     0,                                          /* tp_as_buffer */
-    Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,   /* tp_flags */
+    Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE |
+        _Py_TPFLAGS_MATCH_SELF,               /* tp_flags */
     float_new__doc__,                           /* tp_doc */
     0,                                          /* tp_traverse */
     0,                                          /* tp_clear */
diff --git a/Objects/listobject.c b/Objects/listobject.c
index 415f9a2..e7987a6 100644
--- a/Objects/listobject.c
+++ b/Objects/listobject.c
@@ -3052,7 +3052,8 @@ PyTypeObject PyList_Type = {
     0,                                          /* tp_setattro */
     0,                                          /* tp_as_buffer */
     Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC |
-        Py_TPFLAGS_BASETYPE | Py_TPFLAGS_LIST_SUBCLASS, /* tp_flags */
+        Py_TPFLAGS_BASETYPE | Py_TPFLAGS_LIST_SUBCLASS |
+        _Py_TPFLAGS_MATCH_SELF,               /* tp_flags */
     list___init____doc__,                       /* tp_doc */
     (traverseproc)list_traverse,                /* tp_traverse */
     (inquiry)_list_clear,                       /* tp_clear */
diff --git a/Objects/longobject.c b/Objects/longobject.c
index 02b3603..d5037a7 100644
--- a/Objects/longobject.c
+++ b/Objects/longobject.c
@@ -5639,7 +5639,8 @@ PyTypeObject PyLong_Type = {
     0,                                          /* tp_setattro */
     0,                                          /* tp_as_buffer */
     Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE |
-        Py_TPFLAGS_LONG_SUBCLASS,               /* tp_flags */
+        Py_TPFLAGS_LONG_SUBCLASS |
+        _Py_TPFLAGS_MATCH_SELF,               /* tp_flags */
     long_doc,                                   /* tp_doc */
     0,                                          /* tp_traverse */
     0,                                          /* tp_clear */
diff --git a/Objects/setobject.c b/Objects/setobject.c
index bfe6917..e8912ff 100644
--- a/Objects/setobject.c
+++ b/Objects/setobject.c
@@ -2093,7 +2093,8 @@ PyTypeObject PySet_Type = {
     0,                                  /* tp_setattro */
     0,                                  /* tp_as_buffer */
     Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC |
-        Py_TPFLAGS_BASETYPE,            /* tp_flags */
+        Py_TPFLAGS_BASETYPE |
+        _Py_TPFLAGS_MATCH_SELF,       /* tp_flags */
     set_doc,                            /* tp_doc */
     (traverseproc)set_traverse,         /* tp_traverse */
     (inquiry)set_clear_internal,        /* tp_clear */
@@ -2193,7 +2194,8 @@ PyTypeObject PyFrozenSet_Type = {
     0,                                  /* tp_setattro */
     0,                                  /* tp_as_buffer */
     Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC |
-        Py_TPFLAGS_BASETYPE,            /* tp_flags */
+        Py_TPFLAGS_BASETYPE |
+        _Py_TPFLAGS_MATCH_SELF,       /* tp_flags */
     frozenset_doc,                      /* tp_doc */
     (traverseproc)set_traverse,         /* tp_traverse */
     (inquiry)set_clear_internal,        /* tp_clear */
@@ -2504,4 +2506,3 @@ static PyObject _dummy_struct = {
   _PyObject_EXTRA_INIT
   2, &_PySetDummy_Type
 };
-
diff --git a/Objects/tupleobject.c b/Objects/tupleobject.c
index becdf70..89c393c 100644
--- a/Objects/tupleobject.c
+++ b/Objects/tupleobject.c
@@ -917,7 +917,8 @@ PyTypeObject PyTuple_Type = {
     0,                                          /* tp_setattro */
     0,                                          /* tp_as_buffer */
     Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC |
-        Py_TPFLAGS_BASETYPE | Py_TPFLAGS_TUPLE_SUBCLASS, /* tp_flags */
+        Py_TPFLAGS_BASETYPE | Py_TPFLAGS_TUPLE_SUBCLASS |
+        _Py_TPFLAGS_MATCH_SELF,               /* tp_flags */
     tuple_new__doc__,                           /* tp_doc */
     (traverseproc)tupletraverse,                /* tp_traverse */
     0,                                          /* tp_clear */
diff --git a/Objects/typeobject.c b/Objects/typeobject.c
index 8b11522..9e71214 100644
--- a/Objects/typeobject.c
+++ b/Objects/typeobject.c
@@ -5261,6 +5261,10 @@ inherit_special(PyTypeObject *type, PyTypeObject *base)
         type->tp_flags |= Py_TPFLAGS_LIST_SUBCLASS;
     else if (PyType_IsSubtype(base, &PyDict_Type))
         type->tp_flags |= Py_TPFLAGS_DICT_SUBCLASS;
+
+    if (PyType_HasFeature(base, _Py_TPFLAGS_MATCH_SELF)) {
+        type->tp_flags |= _Py_TPFLAGS_MATCH_SELF;
+    }
 }
 
 static int
diff --git a/Objects/unicodeobject.c b/Objects/unicodeobject.c
index 5e1b6b0..0b08b0e 100644
--- a/Objects/unicodeobject.c
+++ b/Objects/unicodeobject.c
@@ -15657,7 +15657,8 @@ PyTypeObject PyUnicode_Type = {
     0,                            /* tp_setattro */
     0,                            /* tp_as_buffer */
     Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE |
-    Py_TPFLAGS_UNICODE_SUBCLASS,   /* tp_flags */
+        Py_TPFLAGS_UNICODE_SUBCLASS |
+        _Py_TPFLAGS_MATCH_SELF, /* tp_flags */
     unicode_doc,                  /* tp_doc */
     0,                            /* tp_traverse */
     0,                            /* tp_clear */
diff --git a/Parser/Python.asdl b/Parser/Python.asdl
index 889712b..ddc019d 100644
--- a/Parser/Python.asdl
+++ b/Parser/Python.asdl
@@ -36,6 +36,8 @@ module Python
           | With(withitem* items, stmt* body, string? type_comment)
           | AsyncWith(withitem* items, stmt* body, string? type_comment)
 
+          | Match(expr subject, match_case* cases)
+
           | Raise(expr? exc, expr? cause)
           | Try(stmt* body, excepthandler* handlers, stmt* orelse, stmt* finalbody)
           | Assert(expr test, expr? msg)
@@ -87,6 +89,10 @@ module Python
          -- can appear only in Subscript
          | Slice(expr? lower, expr? upper, expr? step)
 
+         -- only used in patterns
+         | MatchAs(expr pattern, identifier name)
+         | MatchOr(expr* patterns)
+
           -- col_offset is the byte offset in the utf8 string the parser uses
           attributes (int lineno, int col_offset, int? end_lineno, int? end_col_offset)
 
@@ -121,5 +127,7 @@ module Python
 
     withitem = (expr context_expr, expr? optional_vars)
 
+    match_case = (expr pattern, expr? guard, stmt* body)
+
     type_ignore = TypeIgnore(int lineno, string tag)
 }
diff --git a/Parser/asdl_c.py b/Parser/asdl_c.py
index 34bd701..8c167bc 100755
--- a/Parser/asdl_c.py
+++ b/Parser/asdl_c.py
@@ -872,9 +872,10 @@ make_type(struct ast_state *state, const char *type, PyObject* base,
         }
         PyTuple_SET_ITEM(fnames, i, field);
     }
-    result = PyObject_CallFunction((PyObject*)&PyType_Type, "s(O){OOOOOs}",
+    result = PyObject_CallFunction((PyObject*)&PyType_Type, "s(O){OOOOOOOs}",
                     type, base,
                     state->_fields, fnames,
+                    state->__match_args__, fnames,
                     state->__module__,
                     state->ast,
                     state->__doc__, doc);
@@ -1005,6 +1006,7 @@ static int add_ast_fields(struct ast_state *state)
     empty_tuple = PyTuple_New(0);
     if (!empty_tuple ||
         PyObject_SetAttrString(state->AST_type, "_fields", empty_tuple) < 0 ||
+        PyObject_SetAttrString(state->AST_type, "__match_args__", empty_tuple) < 0 ||
         PyObject_SetAttrString(state->AST_type, "_attributes", empty_tuple) < 0) {
         Py_XDECREF(empty_tuple);
         return -1;
@@ -1405,6 +1407,7 @@ def generate_module_def(mod, f, internal_h):
     state_strings = {
         "ast",
         "_fields",
+        "__match_args__",
         "__doc__",
         "__dict__",
         "__module__",
diff --git a/Parser/parser.c b/Parser/parser.c
index 3f0d06f..4ab0401 100644
--- a/Parser/parser.c
+++ b/Parser/parser.c
@@ -15,7 +15,7 @@ static KeywordToken *reserved_keywords[] = {
         {"if", 510},
         {"in", 518},
         {"as", 520},
-        {"is", 527},
+        {"is", 530},
         {"or", 531},
         {NULL, -1},
     },
@@ -23,8 +23,8 @@ static KeywordToken *reserved_keywords[] = {
         {"del", 503},
         {"try", 511},
         {"for", 517},
-        {"def", 523},
-        {"not", 526},
+        {"def", 526},
+        {"not", 529},
         {"and", 532},
         {NULL, -1},
     },
@@ -34,8 +34,8 @@ static KeywordToken *reserved_keywords[] = {
         {"elif", 515},
         {"else", 516},
         {"with", 519},
-        {"True", 528},
-        {"None", 530},
+        {"None", 523},
+        {"True", 524},
         {NULL, -1},
     },
     (KeywordToken[]) {
@@ -43,8 +43,8 @@ static KeywordToken *reserved_keywords[] = {
         {"yield", 504},
         {"break", 506},
         {"while", 512},
-        {"class", 524},
-        {"False", 529},
+        {"False", 525},
+        {"class", 527},
         {NULL, -1},
     },
     (KeywordToken[]) {
@@ -53,7 +53,7 @@ static KeywordToken *reserved_keywords[] = {
         {"global", 508},
         {"import", 513},
         {"except", 521},
-        {"lambda", 525},
+        {"lambda", 528},
         {NULL, -1},
     },
     (KeywordToken[]) {
@@ -104,301 +104,347 @@ static KeywordToken *reserved_keywords[] = {
 #define try_stmt_type 1035
 #define except_block_type 1036
 #define finally_block_type 1037
-#define return_stmt_type 1038
-#define raise_stmt_type 1039
-#define function_def_type 1040
-#define function_def_raw_type 1041
-#define func_type_comment_type 1042
-#define params_type 1043
-#define parameters_type 1044
-#define slash_no_default_type 1045
-#define slash_with_default_type 1046
-#define star_etc_type 1047
-#define kwds_type 1048
-#define param_no_default_type 1049
-#define param_with_default_type 1050
-#define param_maybe_default_type 1051
-#define param_type 1052
-#define annotation_type 1053
-#define default_type 1054
-#define decorators_type 1055
-#define class_def_type 1056
-#define class_def_raw_type 1057
-#define block_type 1058
-#define star_expressions_type 1059
-#define star_expression_type 1060
-#define star_named_expressions_type 1061
-#define star_named_expression_type 1062
-#define named_expression_type 1063
-#define annotated_rhs_type 1064
-#define expressions_type 1065
-#define expression_type 1066
-#define lambdef_type 1067
-#define lambda_params_type 1068
-#define lambda_parameters_type 1069
-#define lambda_slash_no_default_type 1070
-#define lambda_slash_with_default_type 1071
-#define lambda_star_etc_type 1072
-#define lambda_kwds_type 1073
-#define lambda_param_no_default_type 1074
-#define lambda_param_with_default_type 1075
-#define lambda_param_maybe_default_type 1076
-#define lambda_param_type 1077
-#define disjunction_type 1078
-#define conjunction_type 1079
-#define inversion_type 1080
-#define comparison_type 1081
-#define compare_op_bitwise_or_pair_type 1082
-#define eq_bitwise_or_type 1083
-#define noteq_bitwise_or_type 1084
-#define lte_bitwise_or_type 1085
-#define lt_bitwise_or_type 1086
-#define gte_bitwise_or_type 1087
-#define gt_bitwise_or_type 1088
-#define notin_bitwise_or_type 1089
-#define in_bitwise_or_type 1090
-#define isnot_bitwise_or_type 1091
-#define is_bitwise_or_type 1092
-#define bitwise_or_type 1093  // Left-recursive
-#define bitwise_xor_type 1094  // Left-recursive
-#define bitwise_and_type 1095  // Left-recursive
-#define shift_expr_type 1096  // Left-recursive
-#define sum_type 1097  // Left-recursive
-#define term_type 1098  // Left-recursive
-#define factor_type 1099
-#define power_type 1100
-#define await_primary_type 1101
-#define primary_type 1102  // Left-recursive
-#define slices_type 1103
-#define slice_type 1104
-#define atom_type 1105
-#define strings_type 1106
-#define list_type 1107
-#define listcomp_type 1108
-#define tuple_type 1109
-#define group_type 1110
-#define genexp_type 1111
-#define set_type 1112
-#define setcomp_type 1113
-#define dict_type 1114
-#define dictcomp_type 1115
-#define double_starred_kvpairs_type 1116
-#define double_starred_kvpair_type 1117
-#define kvpair_type 1118
-#define for_if_clauses_type 1119
-#define for_if_clause_type 1120
-#define yield_expr_type 1121
-#define arguments_type 1122
-#define args_type 1123
-#define kwargs_type 1124
-#define starred_expression_type 1125
-#define kwarg_or_starred_type 1126
-#define kwarg_or_double_starred_type 1127
-#define star_targets_type 1128
-#define star_targets_list_seq_type 1129
-#define star_targets_tuple_seq_type 1130
-#define star_target_type 1131
-#define target_with_star_atom_type 1132
-#define star_atom_type 1133
-#define single_target_type 1134
-#define single_subscript_attribute_target_type 1135
-#define del_targets_type 1136
-#define del_target_type 1137
-#define del_t_atom_type 1138
-#define targets_type 1139
-#define target_type 1140
-#define t_primary_type 1141  // Left-recursive
-#define t_lookahead_type 1142
-#define t_atom_type 1143
-#define invalid_arguments_type 1144
-#define invalid_kwarg_type 1145
-#define invalid_named_expression_type 1146
-#define invalid_assignment_type 1147
-#define invalid_ann_assign_target_type 1148
-#define invalid_del_stmt_type 1149
-#define invalid_block_type 1150
-#define invalid_primary_type 1151  // Left-recursive
-#define invalid_comprehension_type 1152
-#define invalid_dict_comprehension_type 1153
-#define invalid_parameters_type 1154
-#define invalid_parameters_helper_type 1155
-#define invalid_lambda_parameters_type 1156
-#define invalid_lambda_parameters_helper_type 1157
-#define invalid_star_etc_type 1158
-#define invalid_lambda_star_etc_type 1159
-#define invalid_double_type_comments_type 1160
-#define invalid_with_item_type 1161
-#define invalid_for_target_type 1162
-#define invalid_group_type 1163
-#define invalid_import_from_targets_type 1164
-#define invalid_with_stmt_type 1165
-#define invalid_except_block_type 1166
-#define _loop0_1_type 1167
-#define _loop0_2_type 1168
-#define _loop0_4_type 1169
-#define _gather_3_type 1170
-#define _loop0_6_type 1171
-#define _gather_5_type 1172
-#define _loop0_8_type 1173
-#define _gather_7_type 1174
-#define _loop0_10_type 1175
-#define _gather_9_type 1176
-#define _loop1_11_type 1177
-#define _loop0_13_type 1178
-#define _gather_12_type 1179
-#define _tmp_14_type 1180
-#define _tmp_15_type 1181
-#define _tmp_16_type 1182
-#define _tmp_17_type 1183
-#define _tmp_18_type 1184
-#define _tmp_19_type 1185
-#define _tmp_20_type 1186
-#define _tmp_21_type 1187
-#define _loop1_22_type 1188
-#define _tmp_23_type 1189
-#define _tmp_24_type 1190
-#define _loop0_26_type 1191
-#define _gather_25_type 1192
-#define _loop0_28_type 1193
-#define _gather_27_type 1194
-#define _tmp_29_type 1195
-#define _tmp_30_type 1196
-#define _loop0_31_type 1197
-#define _loop1_32_type 1198
-#define _loop0_34_type 1199
-#define _gather_33_type 1200
-#define _tmp_35_type 1201
-#define _loop0_37_type 1202
-#define _gather_36_type 1203
-#define _tmp_38_type 1204
-#define _loop0_40_type 1205
-#define _gather_39_type 1206
-#define _loop0_42_type 1207
-#define _gather_41_type 1208
-#define _loop0_44_type 1209
-#define _gather_43_type 1210
-#define _loop0_46_type 1211
-#define _gather_45_type 1212
-#define _tmp_47_type 1213
-#define _loop1_48_type 1214
-#define _tmp_49_type 1215
-#define _tmp_50_type 1216
-#define _tmp_51_type 1217
-#define _tmp_52_type 1218
-#define _tmp_53_type 1219
-#define _loop0_54_type 1220
-#define _loop0_55_type 1221
-#define _loop0_56_type 1222
-#define _loop1_57_type 1223
-#define _loop0_58_type 1224
-#define _loop1_59_type 1225
-#define _loop1_60_type 1226
-#define _loop1_61_type 1227
-#define _loop0_62_type 1228
-#define _loop1_63_type 1229
-#define _loop0_64_type 1230
-#define _loop1_65_type 1231
-#define _loop0_66_type 1232
-#define _loop1_67_type 1233
-#define _loop1_68_type 1234
-#define _tmp_69_type 1235
-#define _loop1_70_type 1236
-#define _loop0_72_type 1237
-#define _gather_71_type 1238
-#define _loop1_73_type 1239
-#define _loop0_74_type 1240
-#define _loop0_75_type 1241
-#define _loop0_76_type 1242
-#define _loop1_77_type 1243
-#define _loop0_78_type 1244
-#define _loop1_79_type 1245
-#define _loop1_80_type 1246
-#define _loop1_81_type 1247
-#define _loop0_82_type 1248
-#define _loop1_83_type 1249
-#define _loop0_84_type 1250
-#define _loop1_85_type 1251
-#define _loop0_86_type 1252
-#define _loop1_87_type 1253
-#define _loop1_88_type 1254
-#define _loop1_89_type 1255
-#define _loop1_90_type 1256
-#define _tmp_91_type 1257
-#define _loop0_93_type 1258
-#define _gather_92_type 1259
-#define _tmp_94_type 1260
-#define _tmp_95_type 1261
-#define _tmp_96_type 1262
-#define _tmp_97_type 1263
-#define _loop1_98_type 1264
-#define _tmp_99_type 1265
-#define _tmp_100_type 1266
-#define _loop0_102_type 1267
-#define _gather_101_type 1268
-#define _loop1_103_type 1269
-#define _loop0_104_type 1270
-#define _loop0_105_type 1271
-#define _loop0_107_type 1272
-#define _gather_106_type 1273
-#define _tmp_108_type 1274
-#define _loop0_110_type 1275
-#define _gather_109_type 1276
-#define _loop0_112_type 1277
-#define _gather_111_type 1278
-#define _loop0_114_type 1279
-#define _gather_113_type 1280
-#define _loop0_116_type 1281
-#define _gather_115_type 1282
-#define _loop0_117_type 1283
-#define _loop0_119_type 1284
-#define _gather_118_type 1285
-#define _loop1_120_type 1286
-#define _tmp_121_type 1287
-#define _loop0_123_type 1288
-#define _gather_122_type 1289
-#define _loop0_125_type 1290
-#define _gather_124_type 1291
-#define _tmp_126_type 1292
-#define _loop0_127_type 1293
-#define _loop0_128_type 1294
-#define _loop0_129_type 1295
-#define _tmp_130_type 1296
-#define _tmp_131_type 1297
-#define _tmp_132_type 1298
-#define _loop0_133_type 1299
-#define _loop1_134_type 1300
-#define _loop0_135_type 1301
-#define _loop1_136_type 1302
-#define _tmp_137_type 1303
-#define _tmp_138_type 1304
-#define _tmp_139_type 1305
-#define _loop0_141_type 1306
-#define _gather_140_type 1307
-#define _loop0_143_type 1308
-#define _gather_142_type 1309
-#define _tmp_144_type 1310
-#define _tmp_145_type 1311
-#define _tmp_146_type 1312
-#define _tmp_147_type 1313
-#define _tmp_148_type 1314
-#define _tmp_149_type 1315
-#define _tmp_150_type 1316
-#define _tmp_151_type 1317
-#define _tmp_152_type 1318
-#define _tmp_153_type 1319
-#define _tmp_154_type 1320
-#define _tmp_155_type 1321
-#define _tmp_156_type 1322
-#define _tmp_157_type 1323
-#define _tmp_158_type 1324
-#define _tmp_159_type 1325
-#define _tmp_160_type 1326
-#define _tmp_161_type 1327
-#define _tmp_162_type 1328
-#define _tmp_163_type 1329
-#define _tmp_164_type 1330
-#define _tmp_165_type 1331
-#define _tmp_166_type 1332
+#define match_stmt_type 1038
+#define subject_expr_type 1039
+#define case_block_type 1040
+#define guard_type 1041
+#define patterns_type 1042
+#define pattern_type 1043
+#define as_pattern_type 1044
+#define or_pattern_type 1045
+#define closed_pattern_type 1046
+#define literal_pattern_type 1047
+#define signed_number_type 1048
+#define capture_pattern_type 1049
+#define wildcard_pattern_type 1050
+#define value_pattern_type 1051
+#define attr_type 1052  // Left-recursive
+#define name_or_attr_type 1053  // Left-recursive
+#define group_pattern_type 1054
+#define sequence_pattern_type 1055
+#define open_sequence_pattern_type 1056
+#define maybe_sequence_pattern_type 1057
+#define maybe_star_pattern_type 1058
+#define star_pattern_type 1059
+#define mapping_pattern_type 1060
+#define items_pattern_type 1061
+#define key_value_pattern_type 1062
+#define double_star_pattern_type 1063
+#define class_pattern_type 1064
+#define positional_patterns_type 1065
+#define keyword_patterns_type 1066
+#define keyword_pattern_type 1067
+#define return_stmt_type 1068
+#define raise_stmt_type 1069
+#define function_def_type 1070
+#define function_def_raw_type 1071
+#define func_type_comment_type 1072
+#define params_type 1073
+#define parameters_type 1074
+#define slash_no_default_type 1075
+#define slash_with_default_type 1076
+#define star_etc_type 1077
+#define kwds_type 1078
+#define param_no_default_type 1079
+#define param_with_default_type 1080
+#define param_maybe_default_type 1081
+#define param_type 1082
+#define annotation_type 1083
+#define default_type 1084
+#define decorators_type 1085
+#define class_def_type 1086
+#define class_def_raw_type 1087
+#define block_type 1088
+#define star_expressions_type 1089
+#define star_expression_type 1090
+#define star_named_expressions_type 1091
+#define star_named_expression_type 1092
+#define named_expression_type 1093
+#define annotated_rhs_type 1094
+#define expressions_type 1095
+#define expression_type 1096
+#define lambdef_type 1097
+#define lambda_params_type 1098
+#define lambda_parameters_type 1099
+#define lambda_slash_no_default_type 1100
+#define lambda_slash_with_default_type 1101
+#define lambda_star_etc_type 1102
+#define lambda_kwds_type 1103
+#define lambda_param_no_default_type 1104
+#define lambda_param_with_default_type 1105
+#define lambda_param_maybe_default_type 1106
+#define lambda_param_type 1107
+#define disjunction_type 1108
+#define conjunction_type 1109
+#define inversion_type 1110
+#define comparison_type 1111
+#define compare_op_bitwise_or_pair_type 1112
+#define eq_bitwise_or_type 1113
+#define noteq_bitwise_or_type 1114
+#define lte_bitwise_or_type 1115
+#define lt_bitwise_or_type 1116
+#define gte_bitwise_or_type 1117
+#define gt_bitwise_or_type 1118
+#define notin_bitwise_or_type 1119
+#define in_bitwise_or_type 1120
+#define isnot_bitwise_or_type 1121
+#define is_bitwise_or_type 1122
+#define bitwise_or_type 1123  // Left-recursive
+#define bitwise_xor_type 1124  // Left-recursive
+#define bitwise_and_type 1125  // Left-recursive
+#define shift_expr_type 1126  // Left-recursive
+#define sum_type 1127  // Left-recursive
+#define term_type 1128  // Left-recursive
+#define factor_type 1129
+#define power_type 1130
+#define await_primary_type 1131
+#define primary_type 1132  // Left-recursive
+#define slices_type 1133
+#define slice_type 1134
+#define atom_type 1135
+#define strings_type 1136
+#define list_type 1137
+#define listcomp_type 1138
+#define tuple_type 1139
+#define group_type 1140
+#define genexp_type 1141
+#define set_type 1142
+#define setcomp_type 1143
+#define dict_type 1144
+#define dictcomp_type 1145
+#define double_starred_kvpairs_type 1146
+#define double_starred_kvpair_type 1147
+#define kvpair_type 1148
+#define for_if_clauses_type 1149
+#define for_if_clause_type 1150
+#define yield_expr_type 1151
+#define arguments_type 1152
+#define args_type 1153
+#define kwargs_type 1154
+#define starred_expression_type 1155
+#define kwarg_or_starred_type 1156
+#define kwarg_or_double_starred_type 1157
+#define star_targets_type 1158
+#define star_targets_list_seq_type 1159
+#define star_targets_tuple_seq_type 1160
+#define star_target_type 1161
+#define target_with_star_atom_type 1162
+#define star_atom_type 1163
+#define single_target_type 1164
+#define single_subscript_attribute_target_type 1165
+#define del_targets_type 1166
+#define del_target_type 1167
+#define del_t_atom_type 1168
+#define targets_type 1169
+#define target_type 1170
+#define t_primary_type 1171  // Left-recursive
+#define t_lookahead_type 1172
+#define t_atom_type 1173
+#define invalid_arguments_type 1174
+#define invalid_kwarg_type 1175
+#define invalid_named_expression_type 1176
+#define invalid_assignment_type 1177
+#define invalid_ann_assign_target_type 1178
+#define invalid_del_stmt_type 1179
+#define invalid_block_type 1180
+#define invalid_primary_type 1181  // Left-recursive
+#define invalid_comprehension_type 1182
+#define invalid_dict_comprehension_type 1183
+#define invalid_parameters_type 1184
+#define invalid_parameters_helper_type 1185
+#define invalid_lambda_parameters_type 1186
+#define invalid_lambda_parameters_helper_type 1187
+#define invalid_star_etc_type 1188
+#define invalid_lambda_star_etc_type 1189
+#define invalid_double_type_comments_type 1190
+#define invalid_with_item_type 1191
+#define invalid_for_target_type 1192
+#define invalid_group_type 1193
+#define invalid_import_from_targets_type 1194
+#define invalid_with_stmt_type 1195
+#define invalid_except_block_type 1196
+#define _loop0_1_type 1197
+#define _loop0_2_type 1198
+#define _loop0_4_type 1199
+#define _gather_3_type 1200
+#define _loop0_6_type 1201
+#define _gather_5_type 1202
+#define _loop0_8_type 1203
+#define _gather_7_type 1204
+#define _loop0_10_type 1205
+#define _gather_9_type 1206
+#define _loop1_11_type 1207
+#define _loop0_13_type 1208
+#define _gather_12_type 1209
+#define _tmp_14_type 1210
+#define _tmp_15_type 1211
+#define _tmp_16_type 1212
+#define _tmp_17_type 1213
+#define _tmp_18_type 1214
+#define _tmp_19_type 1215
+#define _tmp_20_type 1216
+#define _tmp_21_type 1217
+#define _loop1_22_type 1218
+#define _tmp_23_type 1219
+#define _tmp_24_type 1220
+#define _loop0_26_type 1221
+#define _gather_25_type 1222
+#define _loop0_28_type 1223
+#define _gather_27_type 1224
+#define _tmp_29_type 1225
+#define _tmp_30_type 1226
+#define _loop0_31_type 1227
+#define _loop1_32_type 1228
+#define _loop0_34_type 1229
+#define _gather_33_type 1230
+#define _tmp_35_type 1231
+#define _loop0_37_type 1232
+#define _gather_36_type 1233
+#define _tmp_38_type 1234
+#define _loop0_40_type 1235
+#define _gather_39_type 1236
+#define _loop0_42_type 1237
+#define _gather_41_type 1238
+#define _loop0_44_type 1239
+#define _gather_43_type 1240
+#define _loop0_46_type 1241
+#define _gather_45_type 1242
+#define _tmp_47_type 1243
+#define _loop1_48_type 1244
+#define _tmp_49_type 1245
+#define _loop1_50_type 1246
+#define _loop0_52_type 1247
+#define _gather_51_type 1248
+#define _tmp_53_type 1249
+#define _tmp_54_type 1250
+#define _tmp_55_type 1251
+#define _loop0_57_type 1252
+#define _gather_56_type 1253
+#define _tmp_58_type 1254
+#define _loop0_60_type 1255
+#define _gather_59_type 1256
+#define _tmp_61_type 1257
+#define _loop0_63_type 1258
+#define _gather_62_type 1259
+#define _loop0_65_type 1260
+#define _gather_64_type 1261
+#define _tmp_66_type 1262
+#define _tmp_67_type 1263
+#define _tmp_68_type 1264
+#define _tmp_69_type 1265
+#define _loop0_70_type 1266
+#define _loop0_71_type 1267
+#define _loop0_72_type 1268
+#define _loop1_73_type 1269
+#define _loop0_74_type 1270
+#define _loop1_75_type 1271
+#define _loop1_76_type 1272
+#define _loop1_77_type 1273
+#define _loop0_78_type 1274
+#define _loop1_79_type 1275
+#define _loop0_80_type 1276
+#define _loop1_81_type 1277
+#define _loop0_82_type 1278
+#define _loop1_83_type 1279
+#define _loop1_84_type 1280
+#define _tmp_85_type 1281
+#define _loop1_86_type 1282
+#define _loop0_88_type 1283
+#define _gather_87_type 1284
+#define _loop1_89_type 1285
+#define _loop0_90_type 1286
+#define _loop0_91_type 1287
+#define _loop0_92_type 1288
+#define _loop1_93_type 1289
+#define _loop0_94_type 1290
+#define _loop1_95_type 1291
+#define _loop1_96_type 1292
+#define _loop1_97_type 1293
+#define _loop0_98_type 1294
+#define _loop1_99_type 1295
+#define _loop0_100_type 1296
+#define _loop1_101_type 1297
+#define _loop0_102_type 1298
+#define _loop1_103_type 1299
+#define _loop1_104_type 1300
+#define _loop1_105_type 1301
+#define _loop1_106_type 1302
+#define _tmp_107_type 1303
+#define _loop0_109_type 1304
+#define _gather_108_type 1305
+#define _tmp_110_type 1306
+#define _tmp_111_type 1307
+#define _tmp_112_type 1308
+#define _tmp_113_type 1309
+#define _loop1_114_type 1310
+#define _tmp_115_type 1311
+#define _tmp_116_type 1312
+#define _loop0_118_type 1313
+#define _gather_117_type 1314
+#define _loop1_119_type 1315
+#define _loop0_120_type 1316
+#define _loop0_121_type 1317
+#define _loop0_123_type 1318
+#define _gather_122_type 1319
+#define _tmp_124_type 1320
+#define _loop0_126_type 1321
+#define _gather_125_type 1322
+#define _loop0_128_type 1323
+#define _gather_127_type 1324
+#define _loop0_130_type 1325
+#define _gather_129_type 1326
+#define _loop0_132_type 1327
+#define _gather_131_type 1328
+#define _loop0_133_type 1329
+#define _loop0_135_type 1330
+#define _gather_134_type 1331
+#define _loop1_136_type 1332
+#define _tmp_137_type 1333
+#define _loop0_139_type 1334
+#define _gather_138_type 1335
+#define _loop0_141_type 1336
+#define _gather_140_type 1337
+#define _tmp_142_type 1338
+#define _loop0_143_type 1339
+#define _loop0_144_type 1340
+#define _loop0_145_type 1341
+#define _tmp_146_type 1342
+#define _tmp_147_type 1343
+#define _tmp_148_type 1344
+#define _loop0_149_type 1345
+#define _loop1_150_type 1346
+#define _loop0_151_type 1347
+#define _loop1_152_type 1348
+#define _tmp_153_type 1349
+#define _tmp_154_type 1350
+#define _tmp_155_type 1351
+#define _loop0_157_type 1352
+#define _gather_156_type 1353
+#define _loop0_159_type 1354
+#define _gather_158_type 1355
+#define _tmp_160_type 1356
+#define _tmp_161_type 1357
+#define _tmp_162_type 1358
+#define _tmp_163_type 1359
+#define _tmp_164_type 1360
+#define _tmp_165_type 1361
+#define _tmp_166_type 1362
+#define _tmp_167_type 1363
+#define _tmp_168_type 1364
+#define _tmp_169_type 1365
+#define _tmp_170_type 1366
+#define _tmp_171_type 1367
+#define _tmp_172_type 1368
+#define _tmp_173_type 1369
+#define _tmp_174_type 1370
+#define _tmp_175_type 1371
+#define _tmp_176_type 1372
+#define _tmp_177_type 1373
+#define _tmp_178_type 1374
+#define _tmp_179_type 1375
+#define _tmp_180_type 1376
+#define _tmp_181_type 1377
+#define _tmp_182_type 1378
 
 static mod_ty file_rule(Parser *p);
 static mod_ty interactive_rule(Parser *p);
@@ -438,6 +484,36 @@ static withitem_ty with_item_rule(Parser *p);
 static stmt_ty try_stmt_rule(Parser *p);
 static excepthandler_ty except_block_rule(Parser *p);
 static asdl_stmt_seq* finally_block_rule(Parser *p);
+static stmt_ty match_stmt_rule(Parser *p);
+static expr_ty subject_expr_rule(Parser *p);
+static match_case_ty case_block_rule(Parser *p);
+static expr_ty guard_rule(Parser *p);
+static expr_ty patterns_rule(Parser *p);
+static expr_ty pattern_rule(Parser *p);
+static expr_ty as_pattern_rule(Parser *p);
+static expr_ty or_pattern_rule(Parser *p);
+static expr_ty closed_pattern_rule(Parser *p);
+static expr_ty literal_pattern_rule(Parser *p);
+static expr_ty signed_number_rule(Parser *p);
+static expr_ty capture_pattern_rule(Parser *p);
+static expr_ty wildcard_pattern_rule(Parser *p);
+static expr_ty value_pattern_rule(Parser *p);
+static expr_ty attr_rule(Parser *p);
+static expr_ty name_or_attr_rule(Parser *p);
+static expr_ty group_pattern_rule(Parser *p);
+static expr_ty sequence_pattern_rule(Parser *p);
+static asdl_seq* open_sequence_pattern_rule(Parser *p);
+static asdl_seq* maybe_sequence_pattern_rule(Parser *p);
+static expr_ty maybe_star_pattern_rule(Parser *p);
+static expr_ty star_pattern_rule(Parser *p);
+static expr_ty mapping_pattern_rule(Parser *p);
+static asdl_seq* items_pattern_rule(Parser *p);
+static KeyValuePair* key_value_pattern_rule(Parser *p);
+static KeyValuePair* double_star_pattern_rule(Parser *p);
+static expr_ty class_pattern_rule(Parser *p);
+static asdl_expr_seq* positional_patterns_rule(Parser *p);
+static asdl_keyword_seq* keyword_patterns_rule(Parser *p);
+static keyword_ty keyword_pattern_rule(Parser *p);
 static stmt_ty return_stmt_rule(Parser *p);
 static stmt_ty raise_stmt_rule(Parser *p);
 static stmt_ty function_def_rule(Parser *p);
@@ -616,116 +692,116 @@ static asdl_seq *_gather_45_rule(Parser *p);
 static void *_tmp_47_rule(Parser *p);
 static asdl_seq *_loop1_48_rule(Parser *p);
 static void *_tmp_49_rule(Parser *p);
-static void *_tmp_50_rule(Parser *p);
-static void *_tmp_51_rule(Parser *p);
-static void *_tmp_52_rule(Parser *p);
+static asdl_seq *_loop1_50_rule(Parser *p);
+static asdl_seq *_loop0_52_rule(Parser *p);
+static asdl_seq *_gather_51_rule(Parser *p);
 static void *_tmp_53_rule(Parser *p);
-static asdl_seq *_loop0_54_rule(Parser *p);
-static asdl_seq *_loop0_55_rule(Parser *p);
-static asdl_seq *_loop0_56_rule(Parser *p);
-static asdl_seq *_loop1_57_rule(Parser *p);
-static asdl_seq *_loop0_58_rule(Parser *p);
-static asdl_seq *_loop1_59_rule(Parser *p);
-static asdl_seq *_loop1_60_rule(Parser *p);
-static asdl_seq *_loop1_61_rule(Parser *p);
-static asdl_seq *_loop0_62_rule(Parser *p);
-static asdl_seq *_loop1_63_rule(Parser *p);
-static asdl_seq *_loop0_64_rule(Parser *p);
-static asdl_seq *_loop1_65_rule(Parser *p);
-static asdl_seq *_loop0_66_rule(Parser *p);
-static asdl_seq *_loop1_67_rule(Parser *p);
-static asdl_seq *_loop1_68_rule(Parser *p);
+static void *_tmp_54_rule(Parser *p);
+static void *_tmp_55_rule(Parser *p);
+static asdl_seq *_loop0_57_rule(Parser *p);
+static asdl_seq *_gather_56_rule(Parser *p);
+static void *_tmp_58_rule(Parser *p);
+static asdl_seq *_loop0_60_rule(Parser *p);
+static asdl_seq *_gather_59_rule(Parser *p);
+static void *_tmp_61_rule(Parser *p);
+static asdl_seq *_loop0_63_rule(Parser *p);
+static asdl_seq *_gather_62_rule(Parser *p);
+static asdl_seq *_loop0_65_rule(Parser *p);
+static asdl_seq *_gather_64_rule(Parser *p);
+static void *_tmp_66_rule(Parser *p);
+static void *_tmp_67_rule(Parser *p);
+static void *_tmp_68_rule(Parser *p);
 static void *_tmp_69_rule(Parser *p);
-static asdl_seq *_loop1_70_rule(Parser *p);
+static asdl_seq *_loop0_70_rule(Parser *p);
+static asdl_seq *_loop0_71_rule(Parser *p);
 static asdl_seq *_loop0_72_rule(Parser *p);
-static asdl_seq *_gather_71_rule(Parser *p);
 static asdl_seq *_loop1_73_rule(Parser *p);
 static asdl_seq *_loop0_74_rule(Parser *p);
-static asdl_seq *_loop0_75_rule(Parser *p);
-static asdl_seq *_loop0_76_rule(Parser *p);
+static asdl_seq *_loop1_75_rule(Parser *p);
+static asdl_seq *_loop1_76_rule(Parser *p);
 static asdl_seq *_loop1_77_rule(Parser *p);
 static asdl_seq *_loop0_78_rule(Parser *p);
 static asdl_seq *_loop1_79_rule(Parser *p);
-static asdl_seq *_loop1_80_rule(Parser *p);
+static asdl_seq *_loop0_80_rule(Parser *p);
 static asdl_seq *_loop1_81_rule(Parser *p);
 static asdl_seq *_loop0_82_rule(Parser *p);
 static asdl_seq *_loop1_83_rule(Parser *p);
-static asdl_seq *_loop0_84_rule(Parser *p);
-static asdl_seq *_loop1_85_rule(Parser *p);
-static asdl_seq *_loop0_86_rule(Parser *p);
-static asdl_seq *_loop1_87_rule(Parser *p);
-static asdl_seq *_loop1_88_rule(Parser *p);
+static asdl_seq *_loop1_84_rule(Parser *p);
+static void *_tmp_85_rule(Parser *p);
+static asdl_seq *_loop1_86_rule(Parser *p);
+static asdl_seq *_loop0_88_rule(Parser *p);
+static asdl_seq *_gather_87_rule(Parser *p);
 static asdl_seq *_loop1_89_rule(Parser *p);
-static asdl_seq *_loop1_90_rule(Parser *p);
-static void *_tmp_91_rule(Parser *p);
-static asdl_seq *_loop0_93_rule(Parser *p);
-static asdl_seq *_gather_92_rule(Parser *p);
-static void *_tmp_94_rule(Parser *p);
-static void *_tmp_95_rule(Parser *p);
-static void *_tmp_96_rule(Parser *p);
-static void *_tmp_97_rule(Parser *p);
-static asdl_seq *_loop1_98_rule(Parser *p);
-static void *_tmp_99_rule(Parser *p);
-static void *_tmp_100_rule(Parser *p);
+static asdl_seq *_loop0_90_rule(Parser *p);
+static asdl_seq *_loop0_91_rule(Parser *p);
+static asdl_seq *_loop0_92_rule(Parser *p);
+static asdl_seq *_loop1_93_rule(Parser *p);
+static asdl_seq *_loop0_94_rule(Parser *p);
+static asdl_seq *_loop1_95_rule(Parser *p);
+static asdl_seq *_loop1_96_rule(Parser *p);
+static asdl_seq *_loop1_97_rule(Parser *p);
+static asdl_seq *_loop0_98_rule(Parser *p);
+static asdl_seq *_loop1_99_rule(Parser *p);
+static asdl_seq *_loop0_100_rule(Parser *p);
+static asdl_seq *_loop1_101_rule(Parser *p);
 static asdl_seq *_loop0_102_rule(Parser *p);
-static asdl_seq *_gather_101_rule(Parser *p);
 static asdl_seq *_loop1_103_rule(Parser *p);
-static asdl_seq *_loop0_104_rule(Parser *p);
-static asdl_seq *_loop0_105_rule(Parser *p);
-static asdl_seq *_loop0_107_rule(Parser *p);
-static asdl_seq *_gather_106_rule(Parser *p);
-static void *_tmp_108_rule(Parser *p);
-static asdl_seq *_loop0_110_rule(Parser *p);
-static asdl_seq *_gather_109_rule(Parser *p);
-static asdl_seq *_loop0_112_rule(Parser *p);
-static asdl_seq *_gather_111_rule(Parser *p);
-static asdl_seq *_loop0_114_rule(Parser *p);
-static asdl_seq *_gather_113_rule(Parser *p);
-static asdl_seq *_loop0_116_rule(Parser *p);
-static asdl_seq *_gather_115_rule(Parser *p);
-static asdl_seq *_loop0_117_rule(Parser *p);
-static asdl_seq *_loop0_119_rule(Parser *p);
-static asdl_seq *_gather_118_rule(Parser *p);
-static asdl_seq *_loop1_120_rule(Parser *p);
-static void *_tmp_121_rule(Parser *p);
+static asdl_seq *_loop1_104_rule(Parser *p);
+static asdl_seq *_loop1_105_rule(Parser *p);
+static asdl_seq *_loop1_106_rule(Parser *p);
+static void *_tmp_107_rule(Parser *p);
+static asdl_seq *_loop0_109_rule(Parser *p);
+static asdl_seq *_gather_108_rule(Parser *p);
+static void *_tmp_110_rule(Parser *p);
+static void *_tmp_111_rule(Parser *p);
+static void *_tmp_112_rule(Parser *p);
+static void *_tmp_113_rule(Parser *p);
+static asdl_seq *_loop1_114_rule(Parser *p);
+static void *_tmp_115_rule(Parser *p);
+static void *_tmp_116_rule(Parser *p);
+static asdl_seq *_loop0_118_rule(Parser *p);
+static asdl_seq *_gather_117_rule(Parser *p);
+static asdl_seq *_loop1_119_rule(Parser *p);
+static asdl_seq *_loop0_120_rule(Parser *p);
+static asdl_seq *_loop0_121_rule(Parser *p);
 static asdl_seq *_loop0_123_rule(Parser *p);
 static asdl_seq *_gather_122_rule(Parser *p);
-static asdl_seq *_loop0_125_rule(Parser *p);
-static asdl_seq *_gather_124_rule(Parser *p);
-static void *_tmp_126_rule(Parser *p);
-static asdl_seq *_loop0_127_rule(Parser *p);
+static void *_tmp_124_rule(Parser *p);
+static asdl_seq *_loop0_126_rule(Parser *p);
+static asdl_seq *_gather_125_rule(Parser *p);
 static asdl_seq *_loop0_128_rule(Parser *p);
-static asdl_seq *_loop0_129_rule(Parser *p);
-static void *_tmp_130_rule(Parser *p);
-static void *_tmp_131_rule(Parser *p);
-static void *_tmp_132_rule(Parser *p);
+static asdl_seq *_gather_127_rule(Parser *p);
+static asdl_seq *_loop0_130_rule(Parser *p);
+static asdl_seq *_gather_129_rule(Parser *p);
+static asdl_seq *_loop0_132_rule(Parser *p);
+static asdl_seq *_gather_131_rule(Parser *p);
 static asdl_seq *_loop0_133_rule(Parser *p);
-static asdl_seq *_loop1_134_rule(Parser *p);
 static asdl_seq *_loop0_135_rule(Parser *p);
+static asdl_seq *_gather_134_rule(Parser *p);
 static asdl_seq *_loop1_136_rule(Parser *p);
 static void *_tmp_137_rule(Parser *p);
-static void *_tmp_138_rule(Parser *p);
-static void *_tmp_139_rule(Parser *p);
+static asdl_seq *_loop0_139_rule(Parser *p);
+static asdl_seq *_gather_138_rule(Parser *p);
 static asdl_seq *_loop0_141_rule(Parser *p);
 static asdl_seq *_gather_140_rule(Parser *p);
+static void *_tmp_142_rule(Parser *p);
 static asdl_seq *_loop0_143_rule(Parser *p);
-static asdl_seq *_gather_142_rule(Parser *p);
-static void *_tmp_144_rule(Parser *p);
-static void *_tmp_145_rule(Parser *p);
+static asdl_seq *_loop0_144_rule(Parser *p);
+static asdl_seq *_loop0_145_rule(Parser *p);
 static void *_tmp_146_rule(Parser *p);
 static void *_tmp_147_rule(Parser *p);
 static void *_tmp_148_rule(Parser *p);
-static void *_tmp_149_rule(Parser *p);
-static void *_tmp_150_rule(Parser *p);
-static void *_tmp_151_rule(Parser *p);
-static void *_tmp_152_rule(Parser *p);
+static asdl_seq *_loop0_149_rule(Parser *p);
+static asdl_seq *_loop1_150_rule(Parser *p);
+static asdl_seq *_loop0_151_rule(Parser *p);
+static asdl_seq *_loop1_152_rule(Parser *p);
 static void *_tmp_153_rule(Parser *p);
 static void *_tmp_154_rule(Parser *p);
 static void *_tmp_155_rule(Parser *p);
-static void *_tmp_156_rule(Parser *p);
-static void *_tmp_157_rule(Parser *p);
-static void *_tmp_158_rule(Parser *p);
-static void *_tmp_159_rule(Parser *p);
+static asdl_seq *_loop0_157_rule(Parser *p);
+static asdl_seq *_gather_156_rule(Parser *p);
+static asdl_seq *_loop0_159_rule(Parser *p);
+static asdl_seq *_gather_158_rule(Parser *p);
 static void *_tmp_160_rule(Parser *p);
 static void *_tmp_161_rule(Parser *p);
 static void *_tmp_162_rule(Parser *p);
@@ -733,6 +809,22 @@ static void *_tmp_163_rule(Parser *p);
 static void *_tmp_164_rule(Parser *p);
 static void *_tmp_165_rule(Parser *p);
 static void *_tmp_166_rule(Parser *p);
+static void *_tmp_167_rule(Parser *p);
+static void *_tmp_168_rule(Parser *p);
+static void *_tmp_169_rule(Parser *p);
+static void *_tmp_170_rule(Parser *p);
+static void *_tmp_171_rule(Parser *p);
+static void *_tmp_172_rule(Parser *p);
+static void *_tmp_173_rule(Parser *p);
+static void *_tmp_174_rule(Parser *p);
+static void *_tmp_175_rule(Parser *p);
+static void *_tmp_176_rule(Parser *p);
+static void *_tmp_177_rule(Parser *p);
+static void *_tmp_178_rule(Parser *p);
+static void *_tmp_179_rule(Parser *p);
+static void *_tmp_180_rule(Parser *p);
+static void *_tmp_181_rule(Parser *p);
+static void *_tmp_182_rule(Parser *p);
 
 
 // file: statements? $
@@ -1891,6 +1983,7 @@ simple_stmt_rule(Parser *p)
 //     | &('for' | ASYNC) for_stmt
 //     | &'try' try_stmt
 //     | &'while' while_stmt
+//     | match_stmt
 static stmt_ty
 compound_stmt_rule(Parser *p)
 {
@@ -2048,6 +2141,25 @@ compound_stmt_rule(Parser *p)
         D(fprintf(stderr, "%*c%s compound_stmt[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "&'while' while_stmt"));
     }
+    { // match_stmt
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> compound_stmt[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "match_stmt"));
+        stmt_ty match_stmt_var;
+        if (
+            (match_stmt_var = match_stmt_rule(p))  // match_stmt
+        )
+        {
+            D(fprintf(stderr, "%*c+ compound_stmt[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "match_stmt"));
+            _res = match_stmt_var;
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s compound_stmt[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "match_stmt"));
+    }
     _res = NULL;
   done:
     D(p->level--);
@@ -4736,6 +4848,2269 @@ finally_block_rule(Parser *p)
     return _res;
 }
 
+// match_stmt: "match" subject_expr ':' NEWLINE INDENT case_block+ DEDENT
+static stmt_ty
+match_stmt_rule(Parser *p)
+{
+    D(p->level++);
+    if (p->error_indicator) {
+        D(p->level--);
+        return NULL;
+    }
+    stmt_ty _res = NULL;
+    int _mark = p->mark;
+    if (p->mark == p->fill && _PyPegen_fill_token(p) < 0) {
+        p->error_indicator = 1;
+        D(p->level--);
+        return NULL;
+    }
+    int _start_lineno = p->tokens[_mark]->lineno;
+    UNUSED(_start_lineno); // Only used by EXTRA macro
+    int _start_col_offset = p->tokens[_mark]->col_offset;
+    UNUSED(_start_col_offset); // Only used by EXTRA macro
+    { // "match" subject_expr ':' NEWLINE INDENT case_block+ DEDENT
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> match_stmt[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "\"match\" subject_expr ':' NEWLINE INDENT case_block+ DEDENT"));
+        expr_ty _keyword;
+        Token * _literal;
+        asdl_match_case_seq* cases;
+        Token * dedent_var;
+        Token * indent_var;
+        Token * newline_var;
+        expr_ty subject;
+        if (
+            (_keyword = _PyPegen_expect_soft_keyword(p, "match"))  // soft_keyword='"match"'
+            &&
+            (subject = subject_expr_rule(p))  // subject_expr
+            &&
+            (_literal = _PyPegen_expect_token(p, 11))  // token=':'
+            &&
+            (newline_var = _PyPegen_expect_token(p, NEWLINE))  // token='NEWLINE'
+            &&
+            (indent_var = _PyPegen_expect_token(p, INDENT))  // token='INDENT'
+            &&
+            (cases = (asdl_match_case_seq*)_loop1_50_rule(p))  // case_block+
+            &&
+            (dedent_var = _PyPegen_expect_token(p, DEDENT))  // token='DEDENT'
+        )
+        {
+            D(fprintf(stderr, "%*c+ match_stmt[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "\"match\" subject_expr ':' NEWLINE INDENT case_block+ DEDENT"));
+            Token *_token = _PyPegen_get_last_nonnwhitespace_token(p);
+            if (_token == NULL) {
+                D(p->level--);
+                return NULL;
+            }
+            int _end_lineno = _token->end_lineno;
+            UNUSED(_end_lineno); // Only used by EXTRA macro
+            int _end_col_offset = _token->end_col_offset;
+            UNUSED(_end_col_offset); // Only used by EXTRA macro
+            _res = CHECK_VERSION ( stmt_ty , 10 , "Pattern matching is" , _Py_Match ( subject , cases , EXTRA ) );
+            if (_res == NULL && PyErr_Occurred()) {
+                p->error_indicator = 1;
+                D(p->level--);
+                return NULL;
+            }
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s match_stmt[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "\"match\" subject_expr ':' NEWLINE INDENT case_block+ DEDENT"));
+    }
+    _res = NULL;
+  done:
+    D(p->level--);
+    return _res;
+}
+
+// subject_expr: star_named_expression ',' star_named_expressions? | named_expression
+static expr_ty
+subject_expr_rule(Parser *p)
+{
+    D(p->level++);
+    if (p->error_indicator) {
+        D(p->level--);
+        return NULL;
+    }
+    expr_ty _res = NULL;
+    int _mark = p->mark;
+    if (p->mark == p->fill && _PyPegen_fill_token(p) < 0) {
+        p->error_indicator = 1;
+        D(p->level--);
+        return NULL;
+    }
+    int _start_lineno = p->tokens[_mark]->lineno;
+    UNUSED(_start_lineno); // Only used by EXTRA macro
+    int _start_col_offset = p->tokens[_mark]->col_offset;
+    UNUSED(_start_col_offset); // Only used by EXTRA macro
+    { // star_named_expression ',' star_named_expressions?
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> subject_expr[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "star_named_expression ',' star_named_expressions?"));
+        Token * _literal;
+        expr_ty value;
+        void *values;
+        if (
+            (value = star_named_expression_rule(p))  // star_named_expression
+            &&
+            (_literal = _PyPegen_expect_token(p, 12))  // token=','
+            &&
+            (values = star_named_expressions_rule(p), 1)  // star_named_expressions?
+        )
+        {
+            D(fprintf(stderr, "%*c+ subject_expr[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "star_named_expression ',' star_named_expressions?"));
+            Token *_token = _PyPegen_get_last_nonnwhitespace_token(p);
+            if (_token == NULL) {
+                D(p->level--);
+                return NULL;
+            }
+            int _end_lineno = _token->end_lineno;
+            UNUSED(_end_lineno); // Only used by EXTRA macro
+            int _end_col_offset = _token->end_col_offset;
+            UNUSED(_end_col_offset); // Only used by EXTRA macro
+            _res = _Py_Tuple ( CHECK ( asdl_expr_seq * , _PyPegen_seq_insert_in_front ( p , value , values ) ) , Load , EXTRA );
+            if (_res == NULL && PyErr_Occurred()) {
+                p->error_indicator = 1;
+                D(p->level--);
+                return NULL;
+            }
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s subject_expr[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "star_named_expression ',' star_named_expressions?"));
+    }
+    { // named_expression
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> subject_expr[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "named_expression"));
+        expr_ty named_expression_var;
+        if (
+            (named_expression_var = named_expression_rule(p))  // named_expression
+        )
+        {
+            D(fprintf(stderr, "%*c+ subject_expr[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "named_expression"));
+            _res = named_expression_var;
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s subject_expr[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "named_expression"));
+    }
+    _res = NULL;
+  done:
+    D(p->level--);
+    return _res;
+}
+
+// case_block: "case" patterns guard? ':' block
+static match_case_ty
+case_block_rule(Parser *p)
+{
+    D(p->level++);
+    if (p->error_indicator) {
+        D(p->level--);
+        return NULL;
+    }
+    match_case_ty _res = NULL;
+    int _mark = p->mark;
+    { // "case" patterns guard? ':' block
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> case_block[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "\"case\" patterns guard? ':' block"));
+        expr_ty _keyword;
+        Token * _literal;
+        asdl_stmt_seq* body;
+        void *guard;
+        expr_ty pattern;
+        if (
+            (_keyword = _PyPegen_expect_soft_keyword(p, "case"))  // soft_keyword='"case"'
+            &&
+            (pattern = patterns_rule(p))  // patterns
+            &&
+            (guard = guard_rule(p), 1)  // guard?
+            &&
+            (_literal = _PyPegen_expect_token(p, 11))  // token=':'
+            &&
+            (body = block_rule(p))  // block
+        )
+        {
+            D(fprintf(stderr, "%*c+ case_block[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "\"case\" patterns guard? ':' block"));
+            _res = _Py_match_case ( pattern , guard , body , p -> arena );
+            if (_res == NULL && PyErr_Occurred()) {
+                p->error_indicator = 1;
+                D(p->level--);
+                return NULL;
+            }
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s case_block[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "\"case\" patterns guard? ':' block"));
+    }
+    _res = NULL;
+  done:
+    D(p->level--);
+    return _res;
+}
+
+// guard: 'if' named_expression
+static expr_ty
+guard_rule(Parser *p)
+{
+    D(p->level++);
+    if (p->error_indicator) {
+        D(p->level--);
+        return NULL;
+    }
+    expr_ty _res = NULL;
+    int _mark = p->mark;
+    { // 'if' named_expression
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> guard[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'if' named_expression"));
+        Token * _keyword;
+        expr_ty guard;
+        if (
+            (_keyword = _PyPegen_expect_token(p, 510))  // token='if'
+            &&
+            (guard = named_expression_rule(p))  // named_expression
+        )
+        {
+            D(fprintf(stderr, "%*c+ guard[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'if' named_expression"));
+            _res = guard;
+            if (_res == NULL && PyErr_Occurred()) {
+                p->error_indicator = 1;
+                D(p->level--);
+                return NULL;
+            }
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s guard[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'if' named_expression"));
+    }
+    _res = NULL;
+  done:
+    D(p->level--);
+    return _res;
+}
+
+// patterns: open_sequence_pattern | pattern
+static expr_ty
+patterns_rule(Parser *p)
+{
+    D(p->level++);
+    if (p->error_indicator) {
+        D(p->level--);
+        return NULL;
+    }
+    expr_ty _res = NULL;
+    int _mark = p->mark;
+    if (p->mark == p->fill && _PyPegen_fill_token(p) < 0) {
+        p->error_indicator = 1;
+        D(p->level--);
+        return NULL;
+    }
+    int _start_lineno = p->tokens[_mark]->lineno;
+    UNUSED(_start_lineno); // Only used by EXTRA macro
+    int _start_col_offset = p->tokens[_mark]->col_offset;
+    UNUSED(_start_col_offset); // Only used by EXTRA macro
+    { // open_sequence_pattern
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> patterns[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "open_sequence_pattern"));
+        asdl_expr_seq* values;
+        if (
+            (values = (asdl_expr_seq*)open_sequence_pattern_rule(p))  // open_sequence_pattern
+        )
+        {
+            D(fprintf(stderr, "%*c+ patterns[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "open_sequence_pattern"));
+            Token *_token = _PyPegen_get_last_nonnwhitespace_token(p);
+            if (_token == NULL) {
+                D(p->level--);
+                return NULL;
+            }
+            int _end_lineno = _token->end_lineno;
+            UNUSED(_end_lineno); // Only used by EXTRA macro
+            int _end_col_offset = _token->end_col_offset;
+            UNUSED(_end_col_offset); // Only used by EXTRA macro
+            _res = _Py_Tuple ( values , Load , EXTRA );
+            if (_res == NULL && PyErr_Occurred()) {
+                p->error_indicator = 1;
+                D(p->level--);
+                return NULL;
+            }
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s patterns[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "open_sequence_pattern"));
+    }
+    { // pattern
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> patterns[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "pattern"));
+        expr_ty pattern_var;
+        if (
+            (pattern_var = pattern_rule(p))  // pattern
+        )
+        {
+            D(fprintf(stderr, "%*c+ patterns[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "pattern"));
+            _res = pattern_var;
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s patterns[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "pattern"));
+    }
+    _res = NULL;
+  done:
+    D(p->level--);
+    return _res;
+}
+
+// pattern: as_pattern | or_pattern
+static expr_ty
+pattern_rule(Parser *p)
+{
+    D(p->level++);
+    if (p->error_indicator) {
+        D(p->level--);
+        return NULL;
+    }
+    expr_ty _res = NULL;
+    int _mark = p->mark;
+    { // as_pattern
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> pattern[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "as_pattern"));
+        expr_ty as_pattern_var;
+        if (
+            (as_pattern_var = as_pattern_rule(p))  // as_pattern
+        )
+        {
+            D(fprintf(stderr, "%*c+ pattern[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "as_pattern"));
+            _res = as_pattern_var;
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s pattern[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "as_pattern"));
+    }
+    { // or_pattern
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> pattern[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "or_pattern"));
+        expr_ty or_pattern_var;
+        if (
+            (or_pattern_var = or_pattern_rule(p))  // or_pattern
+        )
+        {
+            D(fprintf(stderr, "%*c+ pattern[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "or_pattern"));
+            _res = or_pattern_var;
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s pattern[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "or_pattern"));
+    }
+    _res = NULL;
+  done:
+    D(p->level--);
+    return _res;
+}
+
+// as_pattern: or_pattern 'as' capture_pattern
+static expr_ty
+as_pattern_rule(Parser *p)
+{
+    D(p->level++);
+    if (p->error_indicator) {
+        D(p->level--);
+        return NULL;
+    }
+    expr_ty _res = NULL;
+    int _mark = p->mark;
+    if (p->mark == p->fill && _PyPegen_fill_token(p) < 0) {
+        p->error_indicator = 1;
+        D(p->level--);
+        return NULL;
+    }
+    int _start_lineno = p->tokens[_mark]->lineno;
+    UNUSED(_start_lineno); // Only used by EXTRA macro
+    int _start_col_offset = p->tokens[_mark]->col_offset;
+    UNUSED(_start_col_offset); // Only used by EXTRA macro
+    { // or_pattern 'as' capture_pattern
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> as_pattern[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "or_pattern 'as' capture_pattern"));
+        Token * _keyword;
+        expr_ty pattern;
+        expr_ty target;
+        if (
+            (pattern = or_pattern_rule(p))  // or_pattern
+            &&
+            (_keyword = _PyPegen_expect_token(p, 520))  // token='as'
+            &&
+            (target = capture_pattern_rule(p))  // capture_pattern
+        )
+        {
+            D(fprintf(stderr, "%*c+ as_pattern[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "or_pattern 'as' capture_pattern"));
+            Token *_token = _PyPegen_get_last_nonnwhitespace_token(p);
+            if (_token == NULL) {
+                D(p->level--);
+                return NULL;
+            }
+            int _end_lineno = _token->end_lineno;
+            UNUSED(_end_lineno); // Only used by EXTRA macro
+            int _end_col_offset = _token->end_col_offset;
+            UNUSED(_end_col_offset); // Only used by EXTRA macro
+            _res = _Py_MatchAs ( pattern , target -> v . Name . id , EXTRA );
+            if (_res == NULL && PyErr_Occurred()) {
+                p->error_indicator = 1;
+                D(p->level--);
+                return NULL;
+            }
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s as_pattern[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "or_pattern 'as' capture_pattern"));
+    }
+    _res = NULL;
+  done:
+    D(p->level--);
+    return _res;
+}
+
+// or_pattern: '|'.closed_pattern+
+static expr_ty
+or_pattern_rule(Parser *p)
+{
+    D(p->level++);
+    if (p->error_indicator) {
+        D(p->level--);
+        return NULL;
+    }
+    expr_ty _res = NULL;
+    int _mark = p->mark;
+    if (p->mark == p->fill && _PyPegen_fill_token(p) < 0) {
+        p->error_indicator = 1;
+        D(p->level--);
+        return NULL;
+    }
+    int _start_lineno = p->tokens[_mark]->lineno;
+    UNUSED(_start_lineno); // Only used by EXTRA macro
+    int _start_col_offset = p->tokens[_mark]->col_offset;
+    UNUSED(_start_col_offset); // Only used by EXTRA macro
+    { // '|'.closed_pattern+
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> or_pattern[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'|'.closed_pattern+"));
+        asdl_expr_seq* patterns;
+        if (
+            (patterns = (asdl_expr_seq*)_gather_51_rule(p))  // '|'.closed_pattern+
+        )
+        {
+            D(fprintf(stderr, "%*c+ or_pattern[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'|'.closed_pattern+"));
+            Token *_token = _PyPegen_get_last_nonnwhitespace_token(p);
+            if (_token == NULL) {
+                D(p->level--);
+                return NULL;
+            }
+            int _end_lineno = _token->end_lineno;
+            UNUSED(_end_lineno); // Only used by EXTRA macro
+            int _end_col_offset = _token->end_col_offset;
+            UNUSED(_end_col_offset); // Only used by EXTRA macro
+            _res = asdl_seq_LEN ( patterns ) == 1 ? asdl_seq_GET ( patterns , 0 ) : _Py_MatchOr ( patterns , EXTRA );
+            if (_res == NULL && PyErr_Occurred()) {
+                p->error_indicator = 1;
+                D(p->level--);
+                return NULL;
+            }
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s or_pattern[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'|'.closed_pattern+"));
+    }
+    _res = NULL;
+  done:
+    D(p->level--);
+    return _res;
+}
+
+// closed_pattern:
+//     | literal_pattern
+//     | capture_pattern
+//     | wildcard_pattern
+//     | value_pattern
+//     | group_pattern
+//     | sequence_pattern
+//     | mapping_pattern
+//     | class_pattern
+static expr_ty
+closed_pattern_rule(Parser *p)
+{
+    D(p->level++);
+    if (p->error_indicator) {
+        D(p->level--);
+        return NULL;
+    }
+    expr_ty _res = NULL;
+    int _mark = p->mark;
+    { // literal_pattern
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> closed_pattern[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "literal_pattern"));
+        expr_ty literal_pattern_var;
+        if (
+            (literal_pattern_var = literal_pattern_rule(p))  // literal_pattern
+        )
+        {
+            D(fprintf(stderr, "%*c+ closed_pattern[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "literal_pattern"));
+            _res = literal_pattern_var;
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s closed_pattern[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "literal_pattern"));
+    }
+    { // capture_pattern
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> closed_pattern[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "capture_pattern"));
+        expr_ty capture_pattern_var;
+        if (
+            (capture_pattern_var = capture_pattern_rule(p))  // capture_pattern
+        )
+        {
+            D(fprintf(stderr, "%*c+ closed_pattern[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "capture_pattern"));
+            _res = capture_pattern_var;
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s closed_pattern[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "capture_pattern"));
+    }
+    { // wildcard_pattern
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> closed_pattern[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "wildcard_pattern"));
+        expr_ty wildcard_pattern_var;
+        if (
+            (wildcard_pattern_var = wildcard_pattern_rule(p))  // wildcard_pattern
+        )
+        {
+            D(fprintf(stderr, "%*c+ closed_pattern[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "wildcard_pattern"));
+            _res = wildcard_pattern_var;
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s closed_pattern[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "wildcard_pattern"));
+    }
+    { // value_pattern
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> closed_pattern[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "value_pattern"));
+        expr_ty value_pattern_var;
+        if (
+            (value_pattern_var = value_pattern_rule(p))  // value_pattern
+        )
+        {
+            D(fprintf(stderr, "%*c+ closed_pattern[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "value_pattern"));
+            _res = value_pattern_var;
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s closed_pattern[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "value_pattern"));
+    }
+    { // group_pattern
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> closed_pattern[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "group_pattern"));
+        expr_ty group_pattern_var;
+        if (
+            (group_pattern_var = group_pattern_rule(p))  // group_pattern
+        )
+        {
+            D(fprintf(stderr, "%*c+ closed_pattern[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "group_pattern"));
+            _res = group_pattern_var;
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s closed_pattern[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "group_pattern"));
+    }
+    { // sequence_pattern
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> closed_pattern[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "sequence_pattern"));
+        expr_ty sequence_pattern_var;
+        if (
+            (sequence_pattern_var = sequence_pattern_rule(p))  // sequence_pattern
+        )
+        {
+            D(fprintf(stderr, "%*c+ closed_pattern[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "sequence_pattern"));
+            _res = sequence_pattern_var;
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s closed_pattern[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "sequence_pattern"));
+    }
+    { // mapping_pattern
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> closed_pattern[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "mapping_pattern"));
+        expr_ty mapping_pattern_var;
+        if (
+            (mapping_pattern_var = mapping_pattern_rule(p))  // mapping_pattern
+        )
+        {
+            D(fprintf(stderr, "%*c+ closed_pattern[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "mapping_pattern"));
+            _res = mapping_pattern_var;
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s closed_pattern[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "mapping_pattern"));
+    }
+    { // class_pattern
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> closed_pattern[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "class_pattern"));
+        expr_ty class_pattern_var;
+        if (
+            (class_pattern_var = class_pattern_rule(p))  // class_pattern
+        )
+        {
+            D(fprintf(stderr, "%*c+ closed_pattern[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "class_pattern"));
+            _res = class_pattern_var;
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s closed_pattern[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "class_pattern"));
+    }
+    _res = NULL;
+  done:
+    D(p->level--);
+    return _res;
+}
+
+// literal_pattern:
+//     | signed_number !('+' | '-')
+//     | signed_number '+' NUMBER
+//     | signed_number '-' NUMBER
+//     | strings
+//     | 'None'
+//     | 'True'
+//     | 'False'
+static expr_ty
+literal_pattern_rule(Parser *p)
+{
+    D(p->level++);
+    if (p->error_indicator) {
+        D(p->level--);
+        return NULL;
+    }
+    expr_ty _res = NULL;
+    int _mark = p->mark;
+    if (p->mark == p->fill && _PyPegen_fill_token(p) < 0) {
+        p->error_indicator = 1;
+        D(p->level--);
+        return NULL;
+    }
+    int _start_lineno = p->tokens[_mark]->lineno;
+    UNUSED(_start_lineno); // Only used by EXTRA macro
+    int _start_col_offset = p->tokens[_mark]->col_offset;
+    UNUSED(_start_col_offset); // Only used by EXTRA macro
+    { // signed_number !('+' | '-')
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> literal_pattern[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "signed_number !('+' | '-')"));
+        expr_ty signed_number_var;
+        if (
+            (signed_number_var = signed_number_rule(p))  // signed_number
+            &&
+            _PyPegen_lookahead(0, _tmp_53_rule, p)
+        )
+        {
+            D(fprintf(stderr, "%*c+ literal_pattern[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "signed_number !('+' | '-')"));
+            _res = signed_number_var;
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s literal_pattern[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "signed_number !('+' | '-')"));
+    }
+    { // signed_number '+' NUMBER
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> literal_pattern[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "signed_number '+' NUMBER"));
+        Token * _literal;
+        expr_ty imag;
+        expr_ty real;
+        if (
+            (real = signed_number_rule(p))  // signed_number
+            &&
+            (_literal = _PyPegen_expect_token(p, 14))  // token='+'
+            &&
+            (imag = _PyPegen_number_token(p))  // NUMBER
+        )
+        {
+            D(fprintf(stderr, "%*c+ literal_pattern[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "signed_number '+' NUMBER"));
+            Token *_token = _PyPegen_get_last_nonnwhitespace_token(p);
+            if (_token == NULL) {
+                D(p->level--);
+                return NULL;
+            }
+            int _end_lineno = _token->end_lineno;
+            UNUSED(_end_lineno); // Only used by EXTRA macro
+            int _end_col_offset = _token->end_col_offset;
+            UNUSED(_end_col_offset); // Only used by EXTRA macro
+            _res = _Py_BinOp ( real , Add , imag , EXTRA );
+            if (_res == NULL && PyErr_Occurred()) {
+                p->error_indicator = 1;
+                D(p->level--);
+                return NULL;
+            }
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s literal_pattern[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "signed_number '+' NUMBER"));
+    }
+    { // signed_number '-' NUMBER
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> literal_pattern[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "signed_number '-' NUMBER"));
+        Token * _literal;
+        expr_ty imag;
+        expr_ty real;
+        if (
+            (real = signed_number_rule(p))  // signed_number
+            &&
+            (_literal = _PyPegen_expect_token(p, 15))  // token='-'
+            &&
+            (imag = _PyPegen_number_token(p))  // NUMBER
+        )
+        {
+            D(fprintf(stderr, "%*c+ literal_pattern[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "signed_number '-' NUMBER"));
+            Token *_token = _PyPegen_get_last_nonnwhitespace_token(p);
+            if (_token == NULL) {
+                D(p->level--);
+                return NULL;
+            }
+            int _end_lineno = _token->end_lineno;
+            UNUSED(_end_lineno); // Only used by EXTRA macro
+            int _end_col_offset = _token->end_col_offset;
+            UNUSED(_end_col_offset); // Only used by EXTRA macro
+            _res = _Py_BinOp ( real , Sub , imag , EXTRA );
+            if (_res == NULL && PyErr_Occurred()) {
+                p->error_indicator = 1;
+                D(p->level--);
+                return NULL;
+            }
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s literal_pattern[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "signed_number '-' NUMBER"));
+    }
+    { // strings
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> literal_pattern[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "strings"));
+        expr_ty strings_var;
+        if (
+            (strings_var = strings_rule(p))  // strings
+        )
+        {
+            D(fprintf(stderr, "%*c+ literal_pattern[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "strings"));
+            _res = strings_var;
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s literal_pattern[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "strings"));
+    }
+    { // 'None'
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> literal_pattern[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'None'"));
+        Token * _keyword;
+        if (
+            (_keyword = _PyPegen_expect_token(p, 523))  // token='None'
+        )
+        {
+            D(fprintf(stderr, "%*c+ literal_pattern[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'None'"));
+            Token *_token = _PyPegen_get_last_nonnwhitespace_token(p);
+            if (_token == NULL) {
+                D(p->level--);
+                return NULL;
+            }
+            int _end_lineno = _token->end_lineno;
+            UNUSED(_end_lineno); // Only used by EXTRA macro
+            int _end_col_offset = _token->end_col_offset;
+            UNUSED(_end_col_offset); // Only used by EXTRA macro
+            _res = _Py_Constant ( Py_None , NULL , EXTRA );
+            if (_res == NULL && PyErr_Occurred()) {
+                p->error_indicator = 1;
+                D(p->level--);
+                return NULL;
+            }
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s literal_pattern[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'None'"));
+    }
+    { // 'True'
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> literal_pattern[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'True'"));
+        Token * _keyword;
+        if (
+            (_keyword = _PyPegen_expect_token(p, 524))  // token='True'
+        )
+        {
+            D(fprintf(stderr, "%*c+ literal_pattern[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'True'"));
+            Token *_token = _PyPegen_get_last_nonnwhitespace_token(p);
+            if (_token == NULL) {
+                D(p->level--);
+                return NULL;
+            }
+            int _end_lineno = _token->end_lineno;
+            UNUSED(_end_lineno); // Only used by EXTRA macro
+            int _end_col_offset = _token->end_col_offset;
+            UNUSED(_end_col_offset); // Only used by EXTRA macro
+            _res = _Py_Constant ( Py_True , NULL , EXTRA );
+            if (_res == NULL && PyErr_Occurred()) {
+                p->error_indicator = 1;
+                D(p->level--);
+                return NULL;
+            }
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s literal_pattern[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'True'"));
+    }
+    { // 'False'
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> literal_pattern[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'False'"));
+        Token * _keyword;
+        if (
+            (_keyword = _PyPegen_expect_token(p, 525))  // token='False'
+        )
+        {
+            D(fprintf(stderr, "%*c+ literal_pattern[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'False'"));
+            Token *_token = _PyPegen_get_last_nonnwhitespace_token(p);
+            if (_token == NULL) {
+                D(p->level--);
+                return NULL;
+            }
+            int _end_lineno = _token->end_lineno;
+            UNUSED(_end_lineno); // Only used by EXTRA macro
+            int _end_col_offset = _token->end_col_offset;
+            UNUSED(_end_col_offset); // Only used by EXTRA macro
+            _res = _Py_Constant ( Py_False , NULL , EXTRA );
+            if (_res == NULL && PyErr_Occurred()) {
+                p->error_indicator = 1;
+                D(p->level--);
+                return NULL;
+            }
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s literal_pattern[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'False'"));
+    }
+    _res = NULL;
+  done:
+    D(p->level--);
+    return _res;
+}
+
+// signed_number: NUMBER | '-' NUMBER
+static expr_ty
+signed_number_rule(Parser *p)
+{
+    D(p->level++);
+    if (p->error_indicator) {
+        D(p->level--);
+        return NULL;
+    }
+    expr_ty _res = NULL;
+    int _mark = p->mark;
+    if (p->mark == p->fill && _PyPegen_fill_token(p) < 0) {
+        p->error_indicator = 1;
+        D(p->level--);
+        return NULL;
+    }
+    int _start_lineno = p->tokens[_mark]->lineno;
+    UNUSED(_start_lineno); // Only used by EXTRA macro
+    int _start_col_offset = p->tokens[_mark]->col_offset;
+    UNUSED(_start_col_offset); // Only used by EXTRA macro
+    { // NUMBER
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> signed_number[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "NUMBER"));
+        expr_ty number_var;
+        if (
+            (number_var = _PyPegen_number_token(p))  // NUMBER
+        )
+        {
+            D(fprintf(stderr, "%*c+ signed_number[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "NUMBER"));
+            _res = number_var;
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s signed_number[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "NUMBER"));
+    }
+    { // '-' NUMBER
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> signed_number[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'-' NUMBER"));
+        Token * _literal;
+        expr_ty number;
+        if (
+            (_literal = _PyPegen_expect_token(p, 15))  // token='-'
+            &&
+            (number = _PyPegen_number_token(p))  // NUMBER
+        )
+        {
+            D(fprintf(stderr, "%*c+ signed_number[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'-' NUMBER"));
+            Token *_token = _PyPegen_get_last_nonnwhitespace_token(p);
+            if (_token == NULL) {
+                D(p->level--);
+                return NULL;
+            }
+            int _end_lineno = _token->end_lineno;
+            UNUSED(_end_lineno); // Only used by EXTRA macro
+            int _end_col_offset = _token->end_col_offset;
+            UNUSED(_end_col_offset); // Only used by EXTRA macro
+            _res = _Py_UnaryOp ( USub , number , EXTRA );
+            if (_res == NULL && PyErr_Occurred()) {
+                p->error_indicator = 1;
+                D(p->level--);
+                return NULL;
+            }
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s signed_number[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'-' NUMBER"));
+    }
+    _res = NULL;
+  done:
+    D(p->level--);
+    return _res;
+}
+
+// capture_pattern: !"_" NAME !('.' | '(' | '=')
+static expr_ty
+capture_pattern_rule(Parser *p)
+{
+    D(p->level++);
+    if (p->error_indicator) {
+        D(p->level--);
+        return NULL;
+    }
+    expr_ty _res = NULL;
+    int _mark = p->mark;
+    { // !"_" NAME !('.' | '(' | '=')
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> capture_pattern[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "!\"_\" NAME !('.' | '(' | '=')"));
+        expr_ty name;
+        if (
+            _PyPegen_lookahead_with_string(0, _PyPegen_expect_soft_keyword, p, "_")
+            &&
+            (name = _PyPegen_name_token(p))  // NAME
+            &&
+            _PyPegen_lookahead(0, _tmp_54_rule, p)
+        )
+        {
+            D(fprintf(stderr, "%*c+ capture_pattern[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "!\"_\" NAME !('.' | '(' | '=')"));
+            _res = _PyPegen_set_expr_context ( p , name , Store );
+            if (_res == NULL && PyErr_Occurred()) {
+                p->error_indicator = 1;
+                D(p->level--);
+                return NULL;
+            }
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s capture_pattern[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "!\"_\" NAME !('.' | '(' | '=')"));
+    }
+    _res = NULL;
+  done:
+    D(p->level--);
+    return _res;
+}
+
+// wildcard_pattern: "_"
+static expr_ty
+wildcard_pattern_rule(Parser *p)
+{
+    D(p->level++);
+    if (p->error_indicator) {
+        D(p->level--);
+        return NULL;
+    }
+    expr_ty _res = NULL;
+    int _mark = p->mark;
+    if (p->mark == p->fill && _PyPegen_fill_token(p) < 0) {
+        p->error_indicator = 1;
+        D(p->level--);
+        return NULL;
+    }
+    int _start_lineno = p->tokens[_mark]->lineno;
+    UNUSED(_start_lineno); // Only used by EXTRA macro
+    int _start_col_offset = p->tokens[_mark]->col_offset;
+    UNUSED(_start_col_offset); // Only used by EXTRA macro
+    { // "_"
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> wildcard_pattern[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "\"_\""));
+        expr_ty _keyword;
+        if (
+            (_keyword = _PyPegen_expect_soft_keyword(p, "_"))  // soft_keyword='"_"'
+        )
+        {
+            D(fprintf(stderr, "%*c+ wildcard_pattern[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "\"_\""));
+            Token *_token = _PyPegen_get_last_nonnwhitespace_token(p);
+            if (_token == NULL) {
+                D(p->level--);
+                return NULL;
+            }
+            int _end_lineno = _token->end_lineno;
+            UNUSED(_end_lineno); // Only used by EXTRA macro
+            int _end_col_offset = _token->end_col_offset;
+            UNUSED(_end_col_offset); // Only used by EXTRA macro
+            _res = _Py_Name ( CHECK ( PyObject * , _PyPegen_new_identifier ( p , "_" ) ) , Store , EXTRA );
+            if (_res == NULL && PyErr_Occurred()) {
+                p->error_indicator = 1;
+                D(p->level--);
+                return NULL;
+            }
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s wildcard_pattern[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "\"_\""));
+    }
+    _res = NULL;
+  done:
+    D(p->level--);
+    return _res;
+}
+
+// value_pattern: attr !('.' | '(' | '=')
+static expr_ty
+value_pattern_rule(Parser *p)
+{
+    D(p->level++);
+    if (p->error_indicator) {
+        D(p->level--);
+        return NULL;
+    }
+    expr_ty _res = NULL;
+    int _mark = p->mark;
+    { // attr !('.' | '(' | '=')
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> value_pattern[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "attr !('.' | '(' | '=')"));
+        expr_ty attr;
+        if (
+            (attr = attr_rule(p))  // attr
+            &&
+            _PyPegen_lookahead(0, _tmp_55_rule, p)
+        )
+        {
+            D(fprintf(stderr, "%*c+ value_pattern[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "attr !('.' | '(' | '=')"));
+            _res = attr;
+            if (_res == NULL && PyErr_Occurred()) {
+                p->error_indicator = 1;
+                D(p->level--);
+                return NULL;
+            }
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s value_pattern[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "attr !('.' | '(' | '=')"));
+    }
+    _res = NULL;
+  done:
+    D(p->level--);
+    return _res;
+}
+
+// Left-recursive
+// attr: name_or_attr '.' NAME
+static expr_ty attr_raw(Parser *);
+static expr_ty
+attr_rule(Parser *p)
+{
+    D(p->level++);
+    expr_ty _res = NULL;
+    if (_PyPegen_is_memoized(p, attr_type, &_res)) {
+        D(p->level--);
+        return _res;
+    }
+    int _mark = p->mark;
+    int _resmark = p->mark;
+    while (1) {
+        int tmpvar_1 = _PyPegen_update_memo(p, _mark, attr_type, _res);
+        if (tmpvar_1) {
+            D(p->level--);
+            return _res;
+        }
+        p->mark = _mark;
+        void *_raw = attr_raw(p);
+        if (p->error_indicator)
+            return NULL;
+        if (_raw == NULL || p->mark <= _resmark)
+            break;
+        _resmark = p->mark;
+        _res = _raw;
+    }
+    p->mark = _resmark;
+    D(p->level--);
+    return _res;
+}
+static expr_ty
+attr_raw(Parser *p)
+{
+    D(p->level++);
+    if (p->error_indicator) {
+        D(p->level--);
+        return NULL;
+    }
+    expr_ty _res = NULL;
+    int _mark = p->mark;
+    if (p->mark == p->fill && _PyPegen_fill_token(p) < 0) {
+        p->error_indicator = 1;
+        D(p->level--);
+        return NULL;
+    }
+    int _start_lineno = p->tokens[_mark]->lineno;
+    UNUSED(_start_lineno); // Only used by EXTRA macro
+    int _start_col_offset = p->tokens[_mark]->col_offset;
+    UNUSED(_start_col_offset); // Only used by EXTRA macro
+    { // name_or_attr '.' NAME
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> attr[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "name_or_attr '.' NAME"));
+        Token * _literal;
+        expr_ty attr;
+        expr_ty value;
+        if (
+            (value = name_or_attr_rule(p))  // name_or_attr
+            &&
+            (_literal = _PyPegen_expect_token(p, 23))  // token='.'
+            &&
+            (attr = _PyPegen_name_token(p))  // NAME
+        )
+        {
+            D(fprintf(stderr, "%*c+ attr[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "name_or_attr '.' NAME"));
+            Token *_token = _PyPegen_get_last_nonnwhitespace_token(p);
+            if (_token == NULL) {
+                D(p->level--);
+                return NULL;
+            }
+            int _end_lineno = _token->end_lineno;
+            UNUSED(_end_lineno); // Only used by EXTRA macro
+            int _end_col_offset = _token->end_col_offset;
+            UNUSED(_end_col_offset); // Only used by EXTRA macro
+            _res = _Py_Attribute ( value , attr -> v . Name . id , Load , EXTRA );
+            if (_res == NULL && PyErr_Occurred()) {
+                p->error_indicator = 1;
+                D(p->level--);
+                return NULL;
+            }
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s attr[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "name_or_attr '.' NAME"));
+    }
+    _res = NULL;
+  done:
+    D(p->level--);
+    return _res;
+}
+
+// Left-recursive
+// name_or_attr: attr | NAME
+static expr_ty
+name_or_attr_rule(Parser *p)
+{
+    D(p->level++);
+    if (p->error_indicator) {
+        D(p->level--);
+        return NULL;
+    }
+    expr_ty _res = NULL;
+    int _mark = p->mark;
+    { // attr
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> name_or_attr[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "attr"));
+        expr_ty attr_var;
+        if (
+            (attr_var = attr_rule(p))  // attr
+        )
+        {
+            D(fprintf(stderr, "%*c+ name_or_attr[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "attr"));
+            _res = attr_var;
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s name_or_attr[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "attr"));
+    }
+    { // NAME
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> name_or_attr[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "NAME"));
+        expr_ty name_var;
+        if (
+            (name_var = _PyPegen_name_token(p))  // NAME
+        )
+        {
+            D(fprintf(stderr, "%*c+ name_or_attr[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "NAME"));
+            _res = name_var;
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s name_or_attr[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "NAME"));
+    }
+    _res = NULL;
+  done:
+    D(p->level--);
+    return _res;
+}
+
+// group_pattern: '(' pattern ')'
+static expr_ty
+group_pattern_rule(Parser *p)
+{
+    D(p->level++);
+    if (p->error_indicator) {
+        D(p->level--);
+        return NULL;
+    }
+    expr_ty _res = NULL;
+    int _mark = p->mark;
+    { // '(' pattern ')'
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> group_pattern[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'(' pattern ')'"));
+        Token * _literal;
+        Token * _literal_1;
+        expr_ty pattern;
+        if (
+            (_literal = _PyPegen_expect_token(p, 7))  // token='('
+            &&
+            (pattern = pattern_rule(p))  // pattern
+            &&
+            (_literal_1 = _PyPegen_expect_token(p, 8))  // token=')'
+        )
+        {
+            D(fprintf(stderr, "%*c+ group_pattern[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'(' pattern ')'"));
+            _res = pattern;
+            if (_res == NULL && PyErr_Occurred()) {
+                p->error_indicator = 1;
+                D(p->level--);
+                return NULL;
+            }
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s group_pattern[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'(' pattern ')'"));
+    }
+    _res = NULL;
+  done:
+    D(p->level--);
+    return _res;
+}
+
+// sequence_pattern: '[' maybe_sequence_pattern? ']' | '(' open_sequence_pattern? ')'
+static expr_ty
+sequence_pattern_rule(Parser *p)
+{
+    D(p->level++);
+    if (p->error_indicator) {
+        D(p->level--);
+        return NULL;
+    }
+    expr_ty _res = NULL;
+    int _mark = p->mark;
+    if (p->mark == p->fill && _PyPegen_fill_token(p) < 0) {
+        p->error_indicator = 1;
+        D(p->level--);
+        return NULL;
+    }
+    int _start_lineno = p->tokens[_mark]->lineno;
+    UNUSED(_start_lineno); // Only used by EXTRA macro
+    int _start_col_offset = p->tokens[_mark]->col_offset;
+    UNUSED(_start_col_offset); // Only used by EXTRA macro
+    { // '[' maybe_sequence_pattern? ']'
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> sequence_pattern[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'[' maybe_sequence_pattern? ']'"));
+        Token * _literal;
+        Token * _literal_1;
+        void *values;
+        if (
+            (_literal = _PyPegen_expect_token(p, 9))  // token='['
+            &&
+            (values = maybe_sequence_pattern_rule(p), 1)  // maybe_sequence_pattern?
+            &&
+            (_literal_1 = _PyPegen_expect_token(p, 10))  // token=']'
+        )
+        {
+            D(fprintf(stderr, "%*c+ sequence_pattern[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'[' maybe_sequence_pattern? ']'"));
+            Token *_token = _PyPegen_get_last_nonnwhitespace_token(p);
+            if (_token == NULL) {
+                D(p->level--);
+                return NULL;
+            }
+            int _end_lineno = _token->end_lineno;
+            UNUSED(_end_lineno); // Only used by EXTRA macro
+            int _end_col_offset = _token->end_col_offset;
+            UNUSED(_end_col_offset); // Only used by EXTRA macro
+            _res = _Py_List ( values , Load , EXTRA );
+            if (_res == NULL && PyErr_Occurred()) {
+                p->error_indicator = 1;
+                D(p->level--);
+                return NULL;
+            }
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s sequence_pattern[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'[' maybe_sequence_pattern? ']'"));
+    }
+    { // '(' open_sequence_pattern? ')'
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> sequence_pattern[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'(' open_sequence_pattern? ')'"));
+        Token * _literal;
+        Token * _literal_1;
+        void *values;
+        if (
+            (_literal = _PyPegen_expect_token(p, 7))  // token='('
+            &&
+            (values = open_sequence_pattern_rule(p), 1)  // open_sequence_pattern?
+            &&
+            (_literal_1 = _PyPegen_expect_token(p, 8))  // token=')'
+        )
+        {
+            D(fprintf(stderr, "%*c+ sequence_pattern[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'(' open_sequence_pattern? ')'"));
+            Token *_token = _PyPegen_get_last_nonnwhitespace_token(p);
+            if (_token == NULL) {
+                D(p->level--);
+                return NULL;
+            }
+            int _end_lineno = _token->end_lineno;
+            UNUSED(_end_lineno); // Only used by EXTRA macro
+            int _end_col_offset = _token->end_col_offset;
+            UNUSED(_end_col_offset); // Only used by EXTRA macro
+            _res = _Py_Tuple ( values , Load , EXTRA );
+            if (_res == NULL && PyErr_Occurred()) {
+                p->error_indicator = 1;
+                D(p->level--);
+                return NULL;
+            }
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s sequence_pattern[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'(' open_sequence_pattern? ')'"));
+    }
+    _res = NULL;
+  done:
+    D(p->level--);
+    return _res;
+}
+
+// open_sequence_pattern: maybe_star_pattern ',' maybe_sequence_pattern?
+static asdl_seq*
+open_sequence_pattern_rule(Parser *p)
+{
+    D(p->level++);
+    if (p->error_indicator) {
+        D(p->level--);
+        return NULL;
+    }
+    asdl_seq* _res = NULL;
+    int _mark = p->mark;
+    { // maybe_star_pattern ',' maybe_sequence_pattern?
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> open_sequence_pattern[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "maybe_star_pattern ',' maybe_sequence_pattern?"));
+        Token * _literal;
+        expr_ty value;
+        void *values;
+        if (
+            (value = maybe_star_pattern_rule(p))  // maybe_star_pattern
+            &&
+            (_literal = _PyPegen_expect_token(p, 12))  // token=','
+            &&
+            (values = maybe_sequence_pattern_rule(p), 1)  // maybe_sequence_pattern?
+        )
+        {
+            D(fprintf(stderr, "%*c+ open_sequence_pattern[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "maybe_star_pattern ',' maybe_sequence_pattern?"));
+            _res = _PyPegen_seq_insert_in_front ( p , value , values );
+            if (_res == NULL && PyErr_Occurred()) {
+                p->error_indicator = 1;
+                D(p->level--);
+                return NULL;
+            }
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s open_sequence_pattern[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "maybe_star_pattern ',' maybe_sequence_pattern?"));
+    }
+    _res = NULL;
+  done:
+    D(p->level--);
+    return _res;
+}
+
+// maybe_sequence_pattern: ','.maybe_star_pattern+ ','?
+static asdl_seq*
+maybe_sequence_pattern_rule(Parser *p)
+{
+    D(p->level++);
+    if (p->error_indicator) {
+        D(p->level--);
+        return NULL;
+    }
+    asdl_seq* _res = NULL;
+    int _mark = p->mark;
+    { // ','.maybe_star_pattern+ ','?
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> maybe_sequence_pattern[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "','.maybe_star_pattern+ ','?"));
+        void *_opt_var;
+        UNUSED(_opt_var); // Silence compiler warnings
+        asdl_seq * values;
+        if (
+            (values = _gather_56_rule(p))  // ','.maybe_star_pattern+
+            &&
+            (_opt_var = _PyPegen_expect_token(p, 12), 1)  // ','?
+        )
+        {
+            D(fprintf(stderr, "%*c+ maybe_sequence_pattern[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "','.maybe_star_pattern+ ','?"));
+            _res = values;
+            if (_res == NULL && PyErr_Occurred()) {
+                p->error_indicator = 1;
+                D(p->level--);
+                return NULL;
+            }
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s maybe_sequence_pattern[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "','.maybe_star_pattern+ ','?"));
+    }
+    _res = NULL;
+  done:
+    D(p->level--);
+    return _res;
+}
+
+// maybe_star_pattern: star_pattern | pattern
+static expr_ty
+maybe_star_pattern_rule(Parser *p)
+{
+    D(p->level++);
+    if (p->error_indicator) {
+        D(p->level--);
+        return NULL;
+    }
+    expr_ty _res = NULL;
+    int _mark = p->mark;
+    { // star_pattern
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> maybe_star_pattern[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "star_pattern"));
+        expr_ty star_pattern_var;
+        if (
+            (star_pattern_var = star_pattern_rule(p))  // star_pattern
+        )
+        {
+            D(fprintf(stderr, "%*c+ maybe_star_pattern[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "star_pattern"));
+            _res = star_pattern_var;
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s maybe_star_pattern[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "star_pattern"));
+    }
+    { // pattern
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> maybe_star_pattern[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "pattern"));
+        expr_ty pattern_var;
+        if (
+            (pattern_var = pattern_rule(p))  // pattern
+        )
+        {
+            D(fprintf(stderr, "%*c+ maybe_star_pattern[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "pattern"));
+            _res = pattern_var;
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s maybe_star_pattern[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "pattern"));
+    }
+    _res = NULL;
+  done:
+    D(p->level--);
+    return _res;
+}
+
+// star_pattern: '*' (capture_pattern | wildcard_pattern)
+static expr_ty
+star_pattern_rule(Parser *p)
+{
+    D(p->level++);
+    if (p->error_indicator) {
+        D(p->level--);
+        return NULL;
+    }
+    expr_ty _res = NULL;
+    int _mark = p->mark;
+    if (p->mark == p->fill && _PyPegen_fill_token(p) < 0) {
+        p->error_indicator = 1;
+        D(p->level--);
+        return NULL;
+    }
+    int _start_lineno = p->tokens[_mark]->lineno;
+    UNUSED(_start_lineno); // Only used by EXTRA macro
+    int _start_col_offset = p->tokens[_mark]->col_offset;
+    UNUSED(_start_col_offset); // Only used by EXTRA macro
+    { // '*' (capture_pattern | wildcard_pattern)
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> star_pattern[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'*' (capture_pattern | wildcard_pattern)"));
+        Token * _literal;
+        void *value;
+        if (
+            (_literal = _PyPegen_expect_token(p, 16))  // token='*'
+            &&
+            (value = _tmp_58_rule(p))  // capture_pattern | wildcard_pattern
+        )
+        {
+            D(fprintf(stderr, "%*c+ star_pattern[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'*' (capture_pattern | wildcard_pattern)"));
+            Token *_token = _PyPegen_get_last_nonnwhitespace_token(p);
+            if (_token == NULL) {
+                D(p->level--);
+                return NULL;
+            }
+            int _end_lineno = _token->end_lineno;
+            UNUSED(_end_lineno); // Only used by EXTRA macro
+            int _end_col_offset = _token->end_col_offset;
+            UNUSED(_end_col_offset); // Only used by EXTRA macro
+            _res = _Py_Starred ( value , Store , EXTRA );
+            if (_res == NULL && PyErr_Occurred()) {
+                p->error_indicator = 1;
+                D(p->level--);
+                return NULL;
+            }
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s star_pattern[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'*' (capture_pattern | wildcard_pattern)"));
+    }
+    _res = NULL;
+  done:
+    D(p->level--);
+    return _res;
+}
+
+// mapping_pattern: '{' items_pattern? '}'
+static expr_ty
+mapping_pattern_rule(Parser *p)
+{
+    D(p->level++);
+    if (p->error_indicator) {
+        D(p->level--);
+        return NULL;
+    }
+    expr_ty _res = NULL;
+    int _mark = p->mark;
+    if (p->mark == p->fill && _PyPegen_fill_token(p) < 0) {
+        p->error_indicator = 1;
+        D(p->level--);
+        return NULL;
+    }
+    int _start_lineno = p->tokens[_mark]->lineno;
+    UNUSED(_start_lineno); // Only used by EXTRA macro
+    int _start_col_offset = p->tokens[_mark]->col_offset;
+    UNUSED(_start_col_offset); // Only used by EXTRA macro
+    { // '{' items_pattern? '}'
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> mapping_pattern[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'{' items_pattern? '}'"));
+        Token * _literal;
+        Token * _literal_1;
+        void *items;
+        if (
+            (_literal = _PyPegen_expect_token(p, 25))  // token='{'
+            &&
+            (items = items_pattern_rule(p), 1)  // items_pattern?
+            &&
+            (_literal_1 = _PyPegen_expect_token(p, 26))  // token='}'
+        )
+        {
+            D(fprintf(stderr, "%*c+ mapping_pattern[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'{' items_pattern? '}'"));
+            Token *_token = _PyPegen_get_last_nonnwhitespace_token(p);
+            if (_token == NULL) {
+                D(p->level--);
+                return NULL;
+            }
+            int _end_lineno = _token->end_lineno;
+            UNUSED(_end_lineno); // Only used by EXTRA macro
+            int _end_col_offset = _token->end_col_offset;
+            UNUSED(_end_col_offset); // Only used by EXTRA macro
+            _res = _Py_Dict ( CHECK ( asdl_expr_seq * , _PyPegen_get_keys ( p , items ) ) , CHECK ( asdl_expr_seq * , _PyPegen_get_values ( p , items ) ) , EXTRA );
+            if (_res == NULL && PyErr_Occurred()) {
+                p->error_indicator = 1;
+                D(p->level--);
+                return NULL;
+            }
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s mapping_pattern[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'{' items_pattern? '}'"));
+    }
+    _res = NULL;
+  done:
+    D(p->level--);
+    return _res;
+}
+
+// items_pattern: ','.key_value_pattern+ ','?
+static asdl_seq*
+items_pattern_rule(Parser *p)
+{
+    D(p->level++);
+    if (p->error_indicator) {
+        D(p->level--);
+        return NULL;
+    }
+    asdl_seq* _res = NULL;
+    int _mark = p->mark;
+    { // ','.key_value_pattern+ ','?
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> items_pattern[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "','.key_value_pattern+ ','?"));
+        void *_opt_var;
+        UNUSED(_opt_var); // Silence compiler warnings
+        asdl_seq * items;
+        if (
+            (items = _gather_59_rule(p))  // ','.key_value_pattern+
+            &&
+            (_opt_var = _PyPegen_expect_token(p, 12), 1)  // ','?
+        )
+        {
+            D(fprintf(stderr, "%*c+ items_pattern[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "','.key_value_pattern+ ','?"));
+            _res = items;
+            if (_res == NULL && PyErr_Occurred()) {
+                p->error_indicator = 1;
+                D(p->level--);
+                return NULL;
+            }
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s items_pattern[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "','.key_value_pattern+ ','?"));
+    }
+    _res = NULL;
+  done:
+    D(p->level--);
+    return _res;
+}
+
+// key_value_pattern: (literal_pattern | value_pattern) ':' pattern | double_star_pattern
+static KeyValuePair*
+key_value_pattern_rule(Parser *p)
+{
+    D(p->level++);
+    if (p->error_indicator) {
+        D(p->level--);
+        return NULL;
+    }
+    KeyValuePair* _res = NULL;
+    int _mark = p->mark;
+    { // (literal_pattern | value_pattern) ':' pattern
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> key_value_pattern[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "(literal_pattern | value_pattern) ':' pattern"));
+        Token * _literal;
+        void *key;
+        expr_ty value;
+        if (
+            (key = _tmp_61_rule(p))  // literal_pattern | value_pattern
+            &&
+            (_literal = _PyPegen_expect_token(p, 11))  // token=':'
+            &&
+            (value = pattern_rule(p))  // pattern
+        )
+        {
+            D(fprintf(stderr, "%*c+ key_value_pattern[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "(literal_pattern | value_pattern) ':' pattern"));
+            _res = _PyPegen_key_value_pair ( p , key , value );
+            if (_res == NULL && PyErr_Occurred()) {
+                p->error_indicator = 1;
+                D(p->level--);
+                return NULL;
+            }
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s key_value_pattern[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "(literal_pattern | value_pattern) ':' pattern"));
+    }
+    { // double_star_pattern
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> key_value_pattern[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "double_star_pattern"));
+        KeyValuePair* double_star_pattern_var;
+        if (
+            (double_star_pattern_var = double_star_pattern_rule(p))  // double_star_pattern
+        )
+        {
+            D(fprintf(stderr, "%*c+ key_value_pattern[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "double_star_pattern"));
+            _res = double_star_pattern_var;
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s key_value_pattern[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "double_star_pattern"));
+    }
+    _res = NULL;
+  done:
+    D(p->level--);
+    return _res;
+}
+
+// double_star_pattern: '**' capture_pattern
+static KeyValuePair*
+double_star_pattern_rule(Parser *p)
+{
+    D(p->level++);
+    if (p->error_indicator) {
+        D(p->level--);
+        return NULL;
+    }
+    KeyValuePair* _res = NULL;
+    int _mark = p->mark;
+    { // '**' capture_pattern
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> double_star_pattern[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'**' capture_pattern"));
+        Token * _literal;
+        expr_ty value;
+        if (
+            (_literal = _PyPegen_expect_token(p, 35))  // token='**'
+            &&
+            (value = capture_pattern_rule(p))  // capture_pattern
+        )
+        {
+            D(fprintf(stderr, "%*c+ double_star_pattern[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'**' capture_pattern"));
+            _res = _PyPegen_key_value_pair ( p , NULL , value );
+            if (_res == NULL && PyErr_Occurred()) {
+                p->error_indicator = 1;
+                D(p->level--);
+                return NULL;
+            }
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s double_star_pattern[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'**' capture_pattern"));
+    }
+    _res = NULL;
+  done:
+    D(p->level--);
+    return _res;
+}
+
+// class_pattern:
+//     | name_or_attr '(' ')'
+//     | name_or_attr '(' positional_patterns ','? ')'
+//     | name_or_attr '(' keyword_patterns ','? ')'
+//     | name_or_attr '(' positional_patterns ',' keyword_patterns ','? ')'
+static expr_ty
+class_pattern_rule(Parser *p)
+{
+    D(p->level++);
+    if (p->error_indicator) {
+        D(p->level--);
+        return NULL;
+    }
+    expr_ty _res = NULL;
+    int _mark = p->mark;
+    if (p->mark == p->fill && _PyPegen_fill_token(p) < 0) {
+        p->error_indicator = 1;
+        D(p->level--);
+        return NULL;
+    }
+    int _start_lineno = p->tokens[_mark]->lineno;
+    UNUSED(_start_lineno); // Only used by EXTRA macro
+    int _start_col_offset = p->tokens[_mark]->col_offset;
+    UNUSED(_start_col_offset); // Only used by EXTRA macro
+    { // name_or_attr '(' ')'
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> class_pattern[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "name_or_attr '(' ')'"));
+        Token * _literal;
+        Token * _literal_1;
+        expr_ty func;
+        if (
+            (func = name_or_attr_rule(p))  // name_or_attr
+            &&
+            (_literal = _PyPegen_expect_token(p, 7))  // token='('
+            &&
+            (_literal_1 = _PyPegen_expect_token(p, 8))  // token=')'
+        )
+        {
+            D(fprintf(stderr, "%*c+ class_pattern[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "name_or_attr '(' ')'"));
+            Token *_token = _PyPegen_get_last_nonnwhitespace_token(p);
+            if (_token == NULL) {
+                D(p->level--);
+                return NULL;
+            }
+            int _end_lineno = _token->end_lineno;
+            UNUSED(_end_lineno); // Only used by EXTRA macro
+            int _end_col_offset = _token->end_col_offset;
+            UNUSED(_end_col_offset); // Only used by EXTRA macro
+            _res = _Py_Call ( func , NULL , NULL , EXTRA );
+            if (_res == NULL && PyErr_Occurred()) {
+                p->error_indicator = 1;
+                D(p->level--);
+                return NULL;
+            }
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s class_pattern[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "name_or_attr '(' ')'"));
+    }
+    { // name_or_attr '(' positional_patterns ','? ')'
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> class_pattern[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "name_or_attr '(' positional_patterns ','? ')'"));
+        Token * _literal;
+        Token * _literal_1;
+        void *_opt_var;
+        UNUSED(_opt_var); // Silence compiler warnings
+        asdl_expr_seq* args;
+        expr_ty func;
+        if (
+            (func = name_or_attr_rule(p))  // name_or_attr
+            &&
+            (_literal = _PyPegen_expect_token(p, 7))  // token='('
+            &&
+            (args = positional_patterns_rule(p))  // positional_patterns
+            &&
+            (_opt_var = _PyPegen_expect_token(p, 12), 1)  // ','?
+            &&
+            (_literal_1 = _PyPegen_expect_token(p, 8))  // token=')'
+        )
+        {
+            D(fprintf(stderr, "%*c+ class_pattern[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "name_or_attr '(' positional_patterns ','? ')'"));
+            Token *_token = _PyPegen_get_last_nonnwhitespace_token(p);
+            if (_token == NULL) {
+                D(p->level--);
+                return NULL;
+            }
+            int _end_lineno = _token->end_lineno;
+            UNUSED(_end_lineno); // Only used by EXTRA macro
+            int _end_col_offset = _token->end_col_offset;
+            UNUSED(_end_col_offset); // Only used by EXTRA macro
+            _res = _Py_Call ( func , args , NULL , EXTRA );
+            if (_res == NULL && PyErr_Occurred()) {
+                p->error_indicator = 1;
+                D(p->level--);
+                return NULL;
+            }
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s class_pattern[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "name_or_attr '(' positional_patterns ','? ')'"));
+    }
+    { // name_or_attr '(' keyword_patterns ','? ')'
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> class_pattern[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "name_or_attr '(' keyword_patterns ','? ')'"));
+        Token * _literal;
+        Token * _literal_1;
+        void *_opt_var;
+        UNUSED(_opt_var); // Silence compiler warnings
+        expr_ty func;
+        asdl_keyword_seq* keywords;
+        if (
+            (func = name_or_attr_rule(p))  // name_or_attr
+            &&
+            (_literal = _PyPegen_expect_token(p, 7))  // token='('
+            &&
+            (keywords = keyword_patterns_rule(p))  // keyword_patterns
+            &&
+            (_opt_var = _PyPegen_expect_token(p, 12), 1)  // ','?
+            &&
+            (_literal_1 = _PyPegen_expect_token(p, 8))  // token=')'
+        )
+        {
+            D(fprintf(stderr, "%*c+ class_pattern[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "name_or_attr '(' keyword_patterns ','? ')'"));
+            Token *_token = _PyPegen_get_last_nonnwhitespace_token(p);
+            if (_token == NULL) {
+                D(p->level--);
+                return NULL;
+            }
+            int _end_lineno = _token->end_lineno;
+            UNUSED(_end_lineno); // Only used by EXTRA macro
+            int _end_col_offset = _token->end_col_offset;
+            UNUSED(_end_col_offset); // Only used by EXTRA macro
+            _res = _Py_Call ( func , NULL , keywords , EXTRA );
+            if (_res == NULL && PyErr_Occurred()) {
+                p->error_indicator = 1;
+                D(p->level--);
+                return NULL;
+            }
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s class_pattern[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "name_or_attr '(' keyword_patterns ','? ')'"));
+    }
+    { // name_or_attr '(' positional_patterns ',' keyword_patterns ','? ')'
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> class_pattern[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "name_or_attr '(' positional_patterns ',' keyword_patterns ','? ')'"));
+        Token * _literal;
+        Token * _literal_1;
+        Token * _literal_2;
+        void *_opt_var;
+        UNUSED(_opt_var); // Silence compiler warnings
+        asdl_expr_seq* args;
+        expr_ty func;
+        asdl_keyword_seq* keywords;
+        if (
+            (func = name_or_attr_rule(p))  // name_or_attr
+            &&
+            (_literal = _PyPegen_expect_token(p, 7))  // token='('
+            &&
+            (args = positional_patterns_rule(p))  // positional_patterns
+            &&
+            (_literal_1 = _PyPegen_expect_token(p, 12))  // token=','
+            &&
+            (keywords = keyword_patterns_rule(p))  // keyword_patterns
+            &&
+            (_opt_var = _PyPegen_expect_token(p, 12), 1)  // ','?
+            &&
+            (_literal_2 = _PyPegen_expect_token(p, 8))  // token=')'
+        )
+        {
+            D(fprintf(stderr, "%*c+ class_pattern[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "name_or_attr '(' positional_patterns ',' keyword_patterns ','? ')'"));
+            Token *_token = _PyPegen_get_last_nonnwhitespace_token(p);
+            if (_token == NULL) {
+                D(p->level--);
+                return NULL;
+            }
+            int _end_lineno = _token->end_lineno;
+            UNUSED(_end_lineno); // Only used by EXTRA macro
+            int _end_col_offset = _token->end_col_offset;
+            UNUSED(_end_col_offset); // Only used by EXTRA macro
+            _res = _Py_Call ( func , args , keywords , EXTRA );
+            if (_res == NULL && PyErr_Occurred()) {
+                p->error_indicator = 1;
+                D(p->level--);
+                return NULL;
+            }
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s class_pattern[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "name_or_attr '(' positional_patterns ',' keyword_patterns ','? ')'"));
+    }
+    _res = NULL;
+  done:
+    D(p->level--);
+    return _res;
+}
+
+// positional_patterns: ','.pattern+
+static asdl_expr_seq*
+positional_patterns_rule(Parser *p)
+{
+    D(p->level++);
+    if (p->error_indicator) {
+        D(p->level--);
+        return NULL;
+    }
+    asdl_expr_seq* _res = NULL;
+    int _mark = p->mark;
+    { // ','.pattern+
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> positional_patterns[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "','.pattern+"));
+        asdl_expr_seq* args;
+        if (
+            (args = (asdl_expr_seq*)_gather_62_rule(p))  // ','.pattern+
+        )
+        {
+            D(fprintf(stderr, "%*c+ positional_patterns[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "','.pattern+"));
+            _res = args;
+            if (_res == NULL && PyErr_Occurred()) {
+                p->error_indicator = 1;
+                D(p->level--);
+                return NULL;
+            }
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s positional_patterns[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "','.pattern+"));
+    }
+    _res = NULL;
+  done:
+    D(p->level--);
+    return _res;
+}
+
+// keyword_patterns: ','.keyword_pattern+
+static asdl_keyword_seq*
+keyword_patterns_rule(Parser *p)
+{
+    D(p->level++);
+    if (p->error_indicator) {
+        D(p->level--);
+        return NULL;
+    }
+    asdl_keyword_seq* _res = NULL;
+    int _mark = p->mark;
+    { // ','.keyword_pattern+
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> keyword_patterns[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "','.keyword_pattern+"));
+        asdl_keyword_seq* keywords;
+        if (
+            (keywords = (asdl_keyword_seq*)_gather_64_rule(p))  // ','.keyword_pattern+
+        )
+        {
+            D(fprintf(stderr, "%*c+ keyword_patterns[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "','.keyword_pattern+"));
+            _res = keywords;
+            if (_res == NULL && PyErr_Occurred()) {
+                p->error_indicator = 1;
+                D(p->level--);
+                return NULL;
+            }
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s keyword_patterns[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "','.keyword_pattern+"));
+    }
+    _res = NULL;
+  done:
+    D(p->level--);
+    return _res;
+}
+
+// keyword_pattern: NAME '=' pattern
+static keyword_ty
+keyword_pattern_rule(Parser *p)
+{
+    D(p->level++);
+    if (p->error_indicator) {
+        D(p->level--);
+        return NULL;
+    }
+    keyword_ty _res = NULL;
+    int _mark = p->mark;
+    if (p->mark == p->fill && _PyPegen_fill_token(p) < 0) {
+        p->error_indicator = 1;
+        D(p->level--);
+        return NULL;
+    }
+    int _start_lineno = p->tokens[_mark]->lineno;
+    UNUSED(_start_lineno); // Only used by EXTRA macro
+    int _start_col_offset = p->tokens[_mark]->col_offset;
+    UNUSED(_start_col_offset); // Only used by EXTRA macro
+    { // NAME '=' pattern
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> keyword_pattern[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "NAME '=' pattern"));
+        Token * _literal;
+        expr_ty arg;
+        expr_ty value;
+        if (
+            (arg = _PyPegen_name_token(p))  // NAME
+            &&
+            (_literal = _PyPegen_expect_token(p, 22))  // token='='
+            &&
+            (value = pattern_rule(p))  // pattern
+        )
+        {
+            D(fprintf(stderr, "%*c+ keyword_pattern[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "NAME '=' pattern"));
+            Token *_token = _PyPegen_get_last_nonnwhitespace_token(p);
+            if (_token == NULL) {
+                D(p->level--);
+                return NULL;
+            }
+            int _end_lineno = _token->end_lineno;
+            UNUSED(_end_lineno); // Only used by EXTRA macro
+            int _end_col_offset = _token->end_col_offset;
+            UNUSED(_end_col_offset); // Only used by EXTRA macro
+            _res = _Py_keyword ( arg -> v . Name . id , value , EXTRA );
+            if (_res == NULL && PyErr_Occurred()) {
+                p->error_indicator = 1;
+                D(p->level--);
+                return NULL;
+            }
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s keyword_pattern[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "NAME '=' pattern"));
+    }
+    _res = NULL;
+  done:
+    D(p->level--);
+    return _res;
+}
+
 // return_stmt: 'return' star_expressions?
 static stmt_ty
 return_stmt_rule(Parser *p)
@@ -4832,7 +7207,7 @@ raise_stmt_rule(Parser *p)
             &&
             (a = expression_rule(p))  // expression
             &&
-            (b = _tmp_50_rule(p), 1)  // ['from' expression]
+            (b = _tmp_66_rule(p), 1)  // ['from' expression]
         )
         {
             D(fprintf(stderr, "%*c+ raise_stmt[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'raise' expression ['from' expression]"));
@@ -4997,7 +7372,7 @@ function_def_raw_rule(Parser *p)
         void *params;
         void *tc;
         if (
-            (_keyword = _PyPegen_expect_token(p, 523))  // token='def'
+            (_keyword = _PyPegen_expect_token(p, 526))  // token='def'
             &&
             (n = _PyPegen_name_token(p))  // NAME
             &&
@@ -5007,7 +7382,7 @@ function_def_raw_rule(Parser *p)
             &&
             (_literal_1 = _PyPegen_expect_token(p, 8))  // token=')'
             &&
-            (a = _tmp_51_rule(p), 1)  // ['->' expression]
+            (a = _tmp_67_rule(p), 1)  // ['->' expression]
             &&
             (_literal_2 = _PyPegen_expect_forced_token(p, 11, ":"))  // forced_token=':'
             &&
@@ -5057,7 +7432,7 @@ function_def_raw_rule(Parser *p)
         if (
             (async_var = _PyPegen_expect_token(p, ASYNC))  // token='ASYNC'
             &&
-            (_keyword = _PyPegen_expect_token(p, 523))  // token='def'
+            (_keyword = _PyPegen_expect_token(p, 526))  // token='def'
             &&
             (n = _PyPegen_name_token(p))  // NAME
             &&
@@ -5067,7 +7442,7 @@ function_def_raw_rule(Parser *p)
             &&
             (_literal_1 = _PyPegen_expect_token(p, 8))  // token=')'
             &&
-            (a = _tmp_52_rule(p), 1)  // ['->' expression]
+            (a = _tmp_68_rule(p), 1)  // ['->' expression]
             &&
             (_literal_2 = _PyPegen_expect_forced_token(p, 11, ":"))  // forced_token=':'
             &&
@@ -5131,7 +7506,7 @@ func_type_comment_rule(Parser *p)
             &&
             (t = _PyPegen_expect_token(p, TYPE_COMMENT))  // token='TYPE_COMMENT'
             &&
-            _PyPegen_lookahead(1, _tmp_53_rule, p)
+            _PyPegen_lookahead(1, _tmp_69_rule, p)
         )
         {
             D(fprintf(stderr, "%*c+ func_type_comment[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "NEWLINE TYPE_COMMENT &(NEWLINE INDENT)"));
@@ -5275,9 +7650,9 @@ parameters_rule(Parser *p)
         if (
             (a = slash_no_default_rule(p))  // slash_no_default
             &&
-            (b = (asdl_arg_seq*)_loop0_54_rule(p))  // param_no_default*
+            (b = (asdl_arg_seq*)_loop0_70_rule(p))  // param_no_default*
             &&
-            (c = _loop0_55_rule(p))  // param_with_default*
+            (c = _loop0_71_rule(p))  // param_with_default*
             &&
             (d = star_etc_rule(p), 1)  // star_etc?
         )
@@ -5307,7 +7682,7 @@ parameters_rule(Parser *p)
         if (
             (a = slash_with_default_rule(p))  // slash_with_default
             &&
-            (b = _loop0_56_rule(p))  // param_with_default*
+            (b = _loop0_72_rule(p))  // param_with_default*
             &&
             (c = star_etc_rule(p), 1)  // star_etc?
         )
@@ -5335,9 +7710,9 @@ parameters_rule(Parser *p)
         asdl_seq * b;
         void *c;
         if (
-            (a = (asdl_arg_seq*)_loop1_57_rule(p))  // param_no_default+
+            (a = (asdl_arg_seq*)_loop1_73_rule(p))  // param_no_default+
             &&
-            (b = _loop0_58_rule(p))  // param_with_default*
+            (b = _loop0_74_rule(p))  // param_with_default*
             &&
             (c = star_etc_rule(p), 1)  // star_etc?
         )
@@ -5364,7 +7739,7 @@ parameters_rule(Parser *p)
         asdl_seq * a;
         void *b;
         if (
-            (a = _loop1_59_rule(p))  // param_with_default+
+            (a = _loop1_75_rule(p))  // param_with_default+
             &&
             (b = star_etc_rule(p), 1)  // star_etc?
         )
@@ -5433,7 +7808,7 @@ slash_no_default_rule(Parser *p)
         Token * _literal_1;
         asdl_arg_seq* a;
         if (
-            (a = (asdl_arg_seq*)_loop1_60_rule(p))  // param_no_default+
+            (a = (asdl_arg_seq*)_loop1_76_rule(p))  // param_no_default+
             &&
             (_literal = _PyPegen_expect_token(p, 17))  // token='/'
             &&
@@ -5462,7 +7837,7 @@ slash_no_default_rule(Parser *p)
         Token * _literal;
         asdl_arg_seq* a;
         if (
-            (a = (asdl_arg_seq*)_loop1_61_rule(p))  // param_no_default+
+            (a = (asdl_arg_seq*)_loop1_77_rule(p))  // param_no_default+
             &&
             (_literal = _PyPegen_expect_token(p, 17))  // token='/'
             &&
@@ -5512,9 +7887,9 @@ slash_with_default_rule(Parser *p)
         asdl_seq * a;
         asdl_seq * b;
         if (
-            (a = _loop0_62_rule(p))  // param_no_default*
+            (a = _loop0_78_rule(p))  // param_no_default*
             &&
-            (b = _loop1_63_rule(p))  // param_with_default+
+            (b = _loop1_79_rule(p))  // param_with_default+
             &&
             (_literal = _PyPegen_expect_token(p, 17))  // token='/'
             &&
@@ -5544,9 +7919,9 @@ slash_with_default_rule(Parser *p)
         asdl_seq * a;
         asdl_seq * b;
         if (
-            (a = _loop0_64_rule(p))  // param_no_default*
+            (a = _loop0_80_rule(p))  // param_no_default*
             &&
-            (b = _loop1_65_rule(p))  // param_with_default+
+            (b = _loop1_81_rule(p))  // param_with_default+
             &&
             (_literal = _PyPegen_expect_token(p, 17))  // token='/'
             &&
@@ -5602,7 +7977,7 @@ star_etc_rule(Parser *p)
             &&
             (a = param_no_default_rule(p))  // param_no_default
             &&
-            (b = _loop0_66_rule(p))  // param_maybe_default*
+            (b = _loop0_82_rule(p))  // param_maybe_default*
             &&
             (c = kwds_rule(p), 1)  // kwds?
         )
@@ -5635,7 +8010,7 @@ star_etc_rule(Parser *p)
             &&
             (_literal_1 = _PyPegen_expect_token(p, 12))  // token=','
             &&
-            (b = _loop1_67_rule(p))  // param_maybe_default+
+            (b = _loop1_83_rule(p))  // param_maybe_default+
             &&
             (c = kwds_rule(p), 1)  // kwds?
         )
@@ -6157,7 +8532,7 @@ decorators_rule(Parser *p)
         D(fprintf(stderr, "%*c> decorators[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "(('@' named_expression NEWLINE))+"));
         asdl_expr_seq* a;
         if (
-            (a = (asdl_expr_seq*)_loop1_68_rule(p))  // (('@' named_expression NEWLINE))+
+            (a = (asdl_expr_seq*)_loop1_84_rule(p))  // (('@' named_expression NEWLINE))+
         )
         {
             D(fprintf(stderr, "%*c+ decorators[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "(('@' named_expression NEWLINE))+"));
@@ -6274,11 +8649,11 @@ class_def_raw_rule(Parser *p)
         void *b;
         asdl_stmt_seq* c;
         if (
-            (_keyword = _PyPegen_expect_token(p, 524))  // token='class'
+            (_keyword = _PyPegen_expect_token(p, 527))  // token='class'
             &&
             (a = _PyPegen_name_token(p))  // NAME
             &&
-            (b = _tmp_69_rule(p), 1)  // ['(' arguments? ')']
+            (b = _tmp_85_rule(p), 1)  // ['(' arguments? ')']
             &&
             (_literal = _PyPegen_expect_forced_token(p, 11, ":"))  // forced_token=':'
             &&
@@ -6442,7 +8817,7 @@ star_expressions_rule(Parser *p)
         if (
             (a = star_expression_rule(p))  // star_expression
             &&
-            (b = _loop1_70_rule(p))  // ((',' star_expression))+
+            (b = _loop1_86_rule(p))  // ((',' star_expression))+
             &&
             (_opt_var = _PyPegen_expect_token(p, 12), 1)  // ','?
         )
@@ -6637,7 +9012,7 @@ star_named_expressions_rule(Parser *p)
         UNUSED(_opt_var); // Silence compiler warnings
         asdl_expr_seq* a;
         if (
-            (a = (asdl_expr_seq*)_gather_71_rule(p))  // ','.star_named_expression+
+            (a = (asdl_expr_seq*)_gather_87_rule(p))  // ','.star_named_expression+
             &&
             (_opt_var = _PyPegen_expect_token(p, 12), 1)  // ','?
         )
@@ -6942,7 +9317,7 @@ expressions_rule(Parser *p)
         if (
             (a = expression_rule(p))  // expression
             &&
-            (b = _loop1_73_rule(p))  // ((',' expression))+
+            (b = _loop1_89_rule(p))  // ((',' expression))+
             &&
             (_opt_var = _PyPegen_expect_token(p, 12), 1)  // ','?
         )
@@ -7175,7 +9550,7 @@ lambdef_rule(Parser *p)
         void *a;
         expr_ty b;
         if (
-            (_keyword = _PyPegen_expect_token(p, 525))  // token='lambda'
+            (_keyword = _PyPegen_expect_token(p, 528))  // token='lambda'
             &&
             (a = lambda_params_rule(p), 1)  // lambda_params?
             &&
@@ -7296,9 +9671,9 @@ lambda_parameters_rule(Parser *p)
         if (
             (a = lambda_slash_no_default_rule(p))  // lambda_slash_no_default
             &&
-            (b = (asdl_arg_seq*)_loop0_74_rule(p))  // lambda_param_no_default*
+            (b = (asdl_arg_seq*)_loop0_90_rule(p))  // lambda_param_no_default*
             &&
-            (c = _loop0_75_rule(p))  // lambda_param_with_default*
+            (c = _loop0_91_rule(p))  // lambda_param_with_default*
             &&
             (d = lambda_star_etc_rule(p), 1)  // lambda_star_etc?
         )
@@ -7328,7 +9703,7 @@ lambda_parameters_rule(Parser *p)
         if (
             (a = lambda_slash_with_default_rule(p))  // lambda_slash_with_default
             &&
-            (b = _loop0_76_rule(p))  // lambda_param_with_default*
+            (b = _loop0_92_rule(p))  // lambda_param_with_default*
             &&
             (c = lambda_star_etc_rule(p), 1)  // lambda_star_etc?
         )
@@ -7356,9 +9731,9 @@ lambda_parameters_rule(Parser *p)
         asdl_seq * b;
         void *c;
         if (
-            (a = (asdl_arg_seq*)_loop1_77_rule(p))  // lambda_param_no_default+
+            (a = (asdl_arg_seq*)_loop1_93_rule(p))  // lambda_param_no_default+
             &&
-            (b = _loop0_78_rule(p))  // lambda_param_with_default*
+            (b = _loop0_94_rule(p))  // lambda_param_with_default*
             &&
             (c = lambda_star_etc_rule(p), 1)  // lambda_star_etc?
         )
@@ -7385,7 +9760,7 @@ lambda_parameters_rule(Parser *p)
         asdl_seq * a;
         void *b;
         if (
-            (a = _loop1_79_rule(p))  // lambda_param_with_default+
+            (a = _loop1_95_rule(p))  // lambda_param_with_default+
             &&
             (b = lambda_star_etc_rule(p), 1)  // lambda_star_etc?
         )
@@ -7456,7 +9831,7 @@ lambda_slash_no_default_rule(Parser *p)
         Token * _literal_1;
         asdl_arg_seq* a;
         if (
-            (a = (asdl_arg_seq*)_loop1_80_rule(p))  // lambda_param_no_default+
+            (a = (asdl_arg_seq*)_loop1_96_rule(p))  // lambda_param_no_default+
             &&
             (_literal = _PyPegen_expect_token(p, 17))  // token='/'
             &&
@@ -7485,7 +9860,7 @@ lambda_slash_no_default_rule(Parser *p)
         Token * _literal;
         asdl_arg_seq* a;
         if (
-            (a = (asdl_arg_seq*)_loop1_81_rule(p))  // lambda_param_no_default+
+            (a = (asdl_arg_seq*)_loop1_97_rule(p))  // lambda_param_no_default+
             &&
             (_literal = _PyPegen_expect_token(p, 17))  // token='/'
             &&
@@ -7535,9 +9910,9 @@ lambda_slash_with_default_rule(Parser *p)
         asdl_seq * a;
         asdl_seq * b;
         if (
-            (a = _loop0_82_rule(p))  // lambda_param_no_default*
+            (a = _loop0_98_rule(p))  // lambda_param_no_default*
             &&
-            (b = _loop1_83_rule(p))  // lambda_param_with_default+
+            (b = _loop1_99_rule(p))  // lambda_param_with_default+
             &&
             (_literal = _PyPegen_expect_token(p, 17))  // token='/'
             &&
@@ -7567,9 +9942,9 @@ lambda_slash_with_default_rule(Parser *p)
         asdl_seq * a;
         asdl_seq * b;
         if (
-            (a = _loop0_84_rule(p))  // lambda_param_no_default*
+            (a = _loop0_100_rule(p))  // lambda_param_no_default*
             &&
-            (b = _loop1_85_rule(p))  // lambda_param_with_default+
+            (b = _loop1_101_rule(p))  // lambda_param_with_default+
             &&
             (_literal = _PyPegen_expect_token(p, 17))  // token='/'
             &&
@@ -7625,7 +10000,7 @@ lambda_star_etc_rule(Parser *p)
             &&
             (a = lambda_param_no_default_rule(p))  // lambda_param_no_default
             &&
-            (b = _loop0_86_rule(p))  // lambda_param_maybe_default*
+            (b = _loop0_102_rule(p))  // lambda_param_maybe_default*
             &&
             (c = lambda_kwds_rule(p), 1)  // lambda_kwds?
         )
@@ -7658,7 +10033,7 @@ lambda_star_etc_rule(Parser *p)
             &&
             (_literal_1 = _PyPegen_expect_token(p, 12))  // token=','
             &&
-            (b = _loop1_87_rule(p))  // lambda_param_maybe_default+
+            (b = _loop1_103_rule(p))  // lambda_param_maybe_default+
             &&
             (c = lambda_kwds_rule(p), 1)  // lambda_kwds?
         )
@@ -8085,7 +10460,7 @@ disjunction_rule(Parser *p)
         if (
             (a = conjunction_rule(p))  // conjunction
             &&
-            (b = _loop1_88_rule(p))  // (('or' conjunction))+
+            (b = _loop1_104_rule(p))  // (('or' conjunction))+
         )
         {
             D(fprintf(stderr, "%*c+ disjunction[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "conjunction (('or' conjunction))+"));
@@ -8171,7 +10546,7 @@ conjunction_rule(Parser *p)
         if (
             (a = inversion_rule(p))  // inversion
             &&
-            (b = _loop1_89_rule(p))  // (('and' inversion))+
+            (b = _loop1_105_rule(p))  // (('and' inversion))+
         )
         {
             D(fprintf(stderr, "%*c+ conjunction[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "inversion (('and' inversion))+"));
@@ -8255,7 +10630,7 @@ inversion_rule(Parser *p)
         Token * _keyword;
         expr_ty a;
         if (
-            (_keyword = _PyPegen_expect_token(p, 526))  // token='not'
+            (_keyword = _PyPegen_expect_token(p, 529))  // token='not'
             &&
             (a = inversion_rule(p))  // inversion
         )
@@ -8339,7 +10714,7 @@ comparison_rule(Parser *p)
         if (
             (a = bitwise_or_rule(p))  // bitwise_or
             &&
-            (b = _loop1_90_rule(p))  // compare_op_bitwise_or_pair+
+            (b = _loop1_106_rule(p))  // compare_op_bitwise_or_pair+
         )
         {
             D(fprintf(stderr, "%*c+ comparison[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "bitwise_or compare_op_bitwise_or_pair+"));
@@ -8667,10 +11042,10 @@ noteq_bitwise_or_rule(Parser *p)
             return NULL;
         }
         D(fprintf(stderr, "%*c> noteq_bitwise_or[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "('!=') bitwise_or"));
-        void *_tmp_91_var;
+        void *_tmp_107_var;
         expr_ty a;
         if (
-            (_tmp_91_var = _tmp_91_rule(p))  // '!='
+            (_tmp_107_var = _tmp_107_rule(p))  // '!='
             &&
             (a = bitwise_or_rule(p))  // bitwise_or
         )
@@ -8891,7 +11266,7 @@ notin_bitwise_or_rule(Parser *p)
         Token * _keyword_1;
         expr_ty a;
         if (
-            (_keyword = _PyPegen_expect_token(p, 526))  // token='not'
+            (_keyword = _PyPegen_expect_token(p, 529))  // token='not'
             &&
             (_keyword_1 = _PyPegen_expect_token(p, 518))  // token='in'
             &&
@@ -8982,9 +11357,9 @@ isnot_bitwise_or_rule(Parser *p)
         Token * _keyword_1;
         expr_ty a;
         if (
-            (_keyword = _PyPegen_expect_token(p, 527))  // token='is'
+            (_keyword = _PyPegen_expect_token(p, 530))  // token='is'
             &&
-            (_keyword_1 = _PyPegen_expect_token(p, 526))  // token='not'
+            (_keyword_1 = _PyPegen_expect_token(p, 529))  // token='not'
             &&
             (a = bitwise_or_rule(p))  // bitwise_or
         )
@@ -9028,7 +11403,7 @@ is_bitwise_or_rule(Parser *p)
         Token * _keyword;
         expr_ty a;
         if (
-            (_keyword = _PyPegen_expect_token(p, 527))  // token='is'
+            (_keyword = _PyPegen_expect_token(p, 530))  // token='is'
             &&
             (a = bitwise_or_rule(p))  // bitwise_or
         )
@@ -9067,8 +11442,8 @@ bitwise_or_rule(Parser *p)
     int _mark = p->mark;
     int _resmark = p->mark;
     while (1) {
-        int tmpvar_1 = _PyPegen_update_memo(p, _mark, bitwise_or_type, _res);
-        if (tmpvar_1) {
+        int tmpvar_2 = _PyPegen_update_memo(p, _mark, bitwise_or_type, _res);
+        if (tmpvar_2) {
             D(p->level--);
             return _res;
         }
@@ -9183,8 +11558,8 @@ bitwise_xor_rule(Parser *p)
     int _mark = p->mark;
     int _resmark = p->mark;
     while (1) {
-        int tmpvar_2 = _PyPegen_update_memo(p, _mark, bitwise_xor_type, _res);
-        if (tmpvar_2) {
+        int tmpvar_3 = _PyPegen_update_memo(p, _mark, bitwise_xor_type, _res);
+        if (tmpvar_3) {
             D(p->level--);
             return _res;
         }
@@ -9299,8 +11674,8 @@ bitwise_and_rule(Parser *p)
     int _mark = p->mark;
     int _resmark = p->mark;
     while (1) {
-        int tmpvar_3 = _PyPegen_update_memo(p, _mark, bitwise_and_type, _res);
-        if (tmpvar_3) {
+        int tmpvar_4 = _PyPegen_update_memo(p, _mark, bitwise_and_type, _res);
+        if (tmpvar_4) {
             D(p->level--);
             return _res;
         }
@@ -9415,8 +11790,8 @@ shift_expr_rule(Parser *p)
     int _mark = p->mark;
     int _resmark = p->mark;
     while (1) {
-        int tmpvar_4 = _PyPegen_update_memo(p, _mark, shift_expr_type, _res);
-        if (tmpvar_4) {
+        int tmpvar_5 = _PyPegen_update_memo(p, _mark, shift_expr_type, _res);
+        if (tmpvar_5) {
             D(p->level--);
             return _res;
         }
@@ -9570,8 +11945,8 @@ sum_rule(Parser *p)
     int _mark = p->mark;
     int _resmark = p->mark;
     while (1) {
-        int tmpvar_5 = _PyPegen_update_memo(p, _mark, sum_type, _res);
-        if (tmpvar_5) {
+        int tmpvar_6 = _PyPegen_update_memo(p, _mark, sum_type, _res);
+        if (tmpvar_6) {
             D(p->level--);
             return _res;
         }
@@ -9731,8 +12106,8 @@ term_rule(Parser *p)
     int _mark = p->mark;
     int _resmark = p->mark;
     while (1) {
-        int tmpvar_6 = _PyPegen_update_memo(p, _mark, term_type, _res);
-        if (tmpvar_6) {
+        int tmpvar_7 = _PyPegen_update_memo(p, _mark, term_type, _res);
+        if (tmpvar_7) {
             D(p->level--);
             return _res;
         }
@@ -10337,8 +12712,8 @@ primary_rule(Parser *p)
     int _mark = p->mark;
     int _resmark = p->mark;
     while (1) {
-        int tmpvar_7 = _PyPegen_update_memo(p, _mark, primary_type, _res);
-        if (tmpvar_7) {
+        int tmpvar_8 = _PyPegen_update_memo(p, _mark, primary_type, _res);
+        if (tmpvar_8) {
             D(p->level--);
             return _res;
         }
@@ -10633,7 +13008,7 @@ slices_rule(Parser *p)
         UNUSED(_opt_var); // Silence compiler warnings
         asdl_expr_seq* a;
         if (
-            (a = (asdl_expr_seq*)_gather_92_rule(p))  // ','.slice+
+            (a = (asdl_expr_seq*)_gather_108_rule(p))  // ','.slice+
             &&
             (_opt_var = _PyPegen_expect_token(p, 12), 1)  // ','?
         )
@@ -10703,7 +13078,7 @@ slice_rule(Parser *p)
             &&
             (b = expression_rule(p), 1)  // expression?
             &&
-            (c = _tmp_94_rule(p), 1)  // [':' expression?]
+            (c = _tmp_110_rule(p), 1)  // [':' expression?]
         )
         {
             D(fprintf(stderr, "%*c+ slice[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "expression? ':' expression? [':' expression?]"));
@@ -10815,7 +13190,7 @@ atom_rule(Parser *p)
         D(fprintf(stderr, "%*c> atom[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'True'"));
         Token * _keyword;
         if (
-            (_keyword = _PyPegen_expect_token(p, 528))  // token='True'
+            (_keyword = _PyPegen_expect_token(p, 524))  // token='True'
         )
         {
             D(fprintf(stderr, "%*c+ atom[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'True'"));
@@ -10848,7 +13223,7 @@ atom_rule(Parser *p)
         D(fprintf(stderr, "%*c> atom[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'False'"));
         Token * _keyword;
         if (
-            (_keyword = _PyPegen_expect_token(p, 529))  // token='False'
+            (_keyword = _PyPegen_expect_token(p, 525))  // token='False'
         )
         {
             D(fprintf(stderr, "%*c+ atom[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'False'"));
@@ -10881,7 +13256,7 @@ atom_rule(Parser *p)
         D(fprintf(stderr, "%*c> atom[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'None'"));
         Token * _keyword;
         if (
-            (_keyword = _PyPegen_expect_token(p, 530))  // token='None'
+            (_keyword = _PyPegen_expect_token(p, 523))  // token='None'
         )
         {
             D(fprintf(stderr, "%*c+ atom[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'None'"));
@@ -10952,15 +13327,15 @@ atom_rule(Parser *p)
             return NULL;
         }
         D(fprintf(stderr, "%*c> atom[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "&'(' (tuple | group | genexp)"));
-        void *_tmp_95_var;
+        void *_tmp_111_var;
         if (
             _PyPegen_lookahead_with_int(1, _PyPegen_expect_token, p, 7)  // token='('
             &&
-            (_tmp_95_var = _tmp_95_rule(p))  // tuple | group | genexp
+            (_tmp_111_var = _tmp_111_rule(p))  // tuple | group | genexp
         )
         {
             D(fprintf(stderr, "%*c+ atom[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "&'(' (tuple | group | genexp)"));
-            _res = _tmp_95_var;
+            _res = _tmp_111_var;
             goto done;
         }
         p->mark = _mark;
@@ -10973,15 +13348,15 @@ atom_rule(Parser *p)
             return NULL;
         }
         D(fprintf(stderr, "%*c> atom[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "&'[' (list | listcomp)"));
-        void *_tmp_96_var;
+        void *_tmp_112_var;
         if (
             _PyPegen_lookahead_with_int(1, _PyPegen_expect_token, p, 9)  // token='['
             &&
-            (_tmp_96_var = _tmp_96_rule(p))  // list | listcomp
+            (_tmp_112_var = _tmp_112_rule(p))  // list | listcomp
         )
         {
             D(fprintf(stderr, "%*c+ atom[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "&'[' (list | listcomp)"));
-            _res = _tmp_96_var;
+            _res = _tmp_112_var;
             goto done;
         }
         p->mark = _mark;
@@ -10994,15 +13369,15 @@ atom_rule(Parser *p)
             return NULL;
         }
         D(fprintf(stderr, "%*c> atom[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "&'{' (dict | set | dictcomp | setcomp)"));
-        void *_tmp_97_var;
+        void *_tmp_113_var;
         if (
             _PyPegen_lookahead_with_int(1, _PyPegen_expect_token, p, 25)  // token='{'
             &&
-            (_tmp_97_var = _tmp_97_rule(p))  // dict | set | dictcomp | setcomp
+            (_tmp_113_var = _tmp_113_rule(p))  // dict | set | dictcomp | setcomp
         )
         {
             D(fprintf(stderr, "%*c+ atom[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "&'{' (dict | set | dictcomp | setcomp)"));
-            _res = _tmp_97_var;
+            _res = _tmp_113_var;
             goto done;
         }
         p->mark = _mark;
@@ -11071,7 +13446,7 @@ strings_rule(Parser *p)
         D(fprintf(stderr, "%*c> strings[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "STRING+"));
         asdl_seq * a;
         if (
-            (a = _loop1_98_rule(p))  // STRING+
+            (a = _loop1_114_rule(p))  // STRING+
         )
         {
             D(fprintf(stderr, "%*c+ strings[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "STRING+"));
@@ -11278,7 +13653,7 @@ tuple_rule(Parser *p)
         if (
             (_literal = _PyPegen_expect_token(p, 7))  // token='('
             &&
-            (a = _tmp_99_rule(p), 1)  // [star_named_expression ',' star_named_expressions?]
+            (a = _tmp_115_rule(p), 1)  // [star_named_expression ',' star_named_expressions?]
             &&
             (_literal_1 = _PyPegen_expect_token(p, 8))  // token=')'
         )
@@ -11334,7 +13709,7 @@ group_rule(Parser *p)
         if (
             (_literal = _PyPegen_expect_token(p, 7))  // token='('
             &&
-            (a = _tmp_100_rule(p))  // yield_expr | named_expression
+            (a = _tmp_116_rule(p))  // yield_expr | named_expression
             &&
             (_literal_1 = _PyPegen_expect_token(p, 8))  // token=')'
         )
@@ -11789,7 +14164,7 @@ double_starred_kvpairs_rule(Parser *p)
         UNUSED(_opt_var); // Silence compiler warnings
         asdl_seq * a;
         if (
-            (a = _gather_101_rule(p))  // ','.double_starred_kvpair+
+            (a = _gather_117_rule(p))  // ','.double_starred_kvpair+
             &&
             (_opt_var = _PyPegen_expect_token(p, 12), 1)  // ','?
         )
@@ -11942,7 +14317,7 @@ for_if_clauses_rule(Parser *p)
         D(fprintf(stderr, "%*c> for_if_clauses[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "for_if_clause+"));
         asdl_comprehension_seq* a;
         if (
-            (a = (asdl_comprehension_seq*)_loop1_103_rule(p))  // for_if_clause+
+            (a = (asdl_comprehension_seq*)_loop1_119_rule(p))  // for_if_clause+
         )
         {
             D(fprintf(stderr, "%*c+ for_if_clauses[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "for_if_clause+"));
@@ -12004,7 +14379,7 @@ for_if_clause_rule(Parser *p)
             &&
             (b = disjunction_rule(p))  // disjunction
             &&
-            (c = (asdl_expr_seq*)_loop0_104_rule(p))  // (('if' disjunction))*
+            (c = (asdl_expr_seq*)_loop0_120_rule(p))  // (('if' disjunction))*
         )
         {
             D(fprintf(stderr, "%*c+ for_if_clause[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "ASYNC 'for' star_targets 'in' ~ disjunction (('if' disjunction))*"));
@@ -12047,7 +14422,7 @@ for_if_clause_rule(Parser *p)
             &&
             (b = disjunction_rule(p))  // disjunction
             &&
-            (c = (asdl_expr_seq*)_loop0_105_rule(p))  // (('if' disjunction))*
+            (c = (asdl_expr_seq*)_loop0_121_rule(p))  // (('if' disjunction))*
         )
         {
             D(fprintf(stderr, "%*c+ for_if_clause[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'for' star_targets 'in' ~ disjunction (('if' disjunction))*"));
@@ -12293,9 +14668,9 @@ args_rule(Parser *p)
         asdl_expr_seq* a;
         void *b;
         if (
-            (a = (asdl_expr_seq*)_gather_106_rule(p))  // ','.(starred_expression | named_expression !'=')+
+            (a = (asdl_expr_seq*)_gather_122_rule(p))  // ','.(starred_expression | named_expression !'=')+
             &&
-            (b = _tmp_108_rule(p), 1)  // [',' kwargs]
+            (b = _tmp_124_rule(p), 1)  // [',' kwargs]
         )
         {
             D(fprintf(stderr, "%*c+ args[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "','.(starred_expression | named_expression !'=')+ [',' kwargs]"));
@@ -12383,11 +14758,11 @@ kwargs_rule(Parser *p)
         asdl_seq * a;
         asdl_seq * b;
         if (
-            (a = _gather_109_rule(p))  // ','.kwarg_or_starred+
+            (a = _gather_125_rule(p))  // ','.kwarg_or_starred+
             &&
             (_literal = _PyPegen_expect_token(p, 12))  // token=','
             &&
-            (b = _gather_111_rule(p))  // ','.kwarg_or_double_starred+
+            (b = _gather_127_rule(p))  // ','.kwarg_or_double_starred+
         )
         {
             D(fprintf(stderr, "%*c+ kwargs[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "','.kwarg_or_starred+ ',' ','.kwarg_or_double_starred+"));
@@ -12409,13 +14784,13 @@ kwargs_rule(Parser *p)
             return NULL;
         }
         D(fprintf(stderr, "%*c> kwargs[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "','.kwarg_or_starred+"));
-        asdl_seq * _gather_113_var;
+        asdl_seq * _gather_129_var;
         if (
-            (_gather_113_var = _gather_113_rule(p))  // ','.kwarg_or_starred+
+            (_gather_129_var = _gather_129_rule(p))  // ','.kwarg_or_starred+
         )
         {
             D(fprintf(stderr, "%*c+ kwargs[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "','.kwarg_or_starred+"));
-            _res = _gather_113_var;
+            _res = _gather_129_var;
             goto done;
         }
         p->mark = _mark;
@@ -12428,13 +14803,13 @@ kwargs_rule(Parser *p)
             return NULL;
         }
         D(fprintf(stderr, "%*c> kwargs[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "','.kwarg_or_double_starred+"));
-        asdl_seq * _gather_115_var;
+        asdl_seq * _gather_131_var;
         if (
-            (_gather_115_var = _gather_115_rule(p))  // ','.kwarg_or_double_starred+
+            (_gather_131_var = _gather_131_rule(p))  // ','.kwarg_or_double_starred+
         )
         {
             D(fprintf(stderr, "%*c+ kwargs[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "','.kwarg_or_double_starred+"));
-            _res = _gather_115_var;
+            _res = _gather_131_var;
             goto done;
         }
         p->mark = _mark;
@@ -12796,7 +15171,7 @@ star_targets_rule(Parser *p)
         if (
             (a = star_target_rule(p))  // star_target
             &&
-            (b = _loop0_117_rule(p))  // ((',' star_target))*
+            (b = _loop0_133_rule(p))  // ((',' star_target))*
             &&
             (_opt_var = _PyPegen_expect_token(p, 12), 1)  // ','?
         )
@@ -12850,7 +15225,7 @@ star_targets_list_seq_rule(Parser *p)
         UNUSED(_opt_var); // Silence compiler warnings
         asdl_expr_seq* a;
         if (
-            (a = (asdl_expr_seq*)_gather_118_rule(p))  // ','.star_target+
+            (a = (asdl_expr_seq*)_gather_134_rule(p))  // ','.star_target+
             &&
             (_opt_var = _PyPegen_expect_token(p, 12), 1)  // ','?
         )
@@ -12898,7 +15273,7 @@ star_targets_tuple_seq_rule(Parser *p)
         if (
             (a = star_target_rule(p))  // star_target
             &&
-            (b = _loop1_120_rule(p))  // ((',' star_target))+
+            (b = _loop1_136_rule(p))  // ((',' star_target))+
             &&
             (_opt_var = _PyPegen_expect_token(p, 12), 1)  // ','?
         )
@@ -12984,7 +15359,7 @@ star_target_rule(Parser *p)
         if (
             (_literal = _PyPegen_expect_token(p, 16))  // token='*'
             &&
-            (a = _tmp_121_rule(p))  // !'*' star_target
+            (a = _tmp_137_rule(p))  // !'*' star_target
         )
         {
             D(fprintf(stderr, "%*c+ star_target[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'*' (!'*' star_target)"));
@@ -13559,7 +15934,7 @@ del_targets_rule(Parser *p)
         UNUSED(_opt_var); // Silence compiler warnings
         asdl_expr_seq* a;
         if (
-            (a = (asdl_expr_seq*)_gather_122_rule(p))  // ','.del_target+
+            (a = (asdl_expr_seq*)_gather_138_rule(p))  // ','.del_target+
             &&
             (_opt_var = _PyPegen_expect_token(p, 12), 1)  // ','?
         )
@@ -13900,7 +16275,7 @@ targets_rule(Parser *p)
         UNUSED(_opt_var); // Silence compiler warnings
         asdl_expr_seq* a;
         if (
-            (a = (asdl_expr_seq*)_gather_124_rule(p))  // ','.target+
+            (a = (asdl_expr_seq*)_gather_140_rule(p))  // ','.target+
             &&
             (_opt_var = _PyPegen_expect_token(p, 12), 1)  // ','?
         )
@@ -14082,8 +16457,8 @@ t_primary_rule(Parser *p)
     int _mark = p->mark;
     int _resmark = p->mark;
     while (1) {
-        int tmpvar_8 = _PyPegen_update_memo(p, _mark, t_primary_type, _res);
-        if (tmpvar_8) {
+        int tmpvar_9 = _PyPegen_update_memo(p, _mark, t_primary_type, _res);
+        if (tmpvar_9) {
             D(p->level--);
             return _res;
         }
@@ -14614,7 +16989,7 @@ invalid_arguments_rule(Parser *p)
             &&
             (_literal = _PyPegen_expect_token(p, 12))  // token=','
             &&
-            (_opt_var = _tmp_126_rule(p), 1)  // [args | expression for_if_clauses]
+            (_opt_var = _tmp_142_rule(p), 1)  // [args | expression for_if_clauses]
         )
         {
             D(fprintf(stderr, "%*c+ invalid_arguments[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "expression for_if_clauses ',' [args | expression for_if_clauses]"));
@@ -14872,7 +17247,7 @@ invalid_assignment_rule(Parser *p)
         D(fprintf(stderr, "%*c> invalid_assignment[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "star_named_expression ',' star_named_expressions* ':' expression"));
         Token * _literal;
         Token * _literal_1;
-        asdl_seq * _loop0_127_var;
+        asdl_seq * _loop0_143_var;
         expr_ty a;
         expr_ty expression_var;
         if (
@@ -14880,7 +17255,7 @@ invalid_assignment_rule(Parser *p)
             &&
             (_literal = _PyPegen_expect_token(p, 12))  // token=','
             &&
-            (_loop0_127_var = _loop0_127_rule(p))  // star_named_expressions*
+            (_loop0_143_var = _loop0_143_rule(p))  // star_named_expressions*
             &&
             (_literal_1 = _PyPegen_expect_token(p, 11))  // token=':'
             &&
@@ -14937,10 +17312,10 @@ invalid_assignment_rule(Parser *p)
         }
         D(fprintf(stderr, "%*c> invalid_assignment[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "((star_targets '='))* star_expressions '='"));
         Token * _literal;
-        asdl_seq * _loop0_128_var;
+        asdl_seq * _loop0_144_var;
         expr_ty a;
         if (
-            (_loop0_128_var = _loop0_128_rule(p))  // ((star_targets '='))*
+            (_loop0_144_var = _loop0_144_rule(p))  // ((star_targets '='))*
             &&
             (a = star_expressions_rule(p))  // star_expressions
             &&
@@ -14967,10 +17342,10 @@ invalid_assignment_rule(Parser *p)
         }
         D(fprintf(stderr, "%*c> invalid_assignment[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "((star_targets '='))* yield_expr '='"));
         Token * _literal;
-        asdl_seq * _loop0_129_var;
+        asdl_seq * _loop0_145_var;
         expr_ty a;
         if (
-            (_loop0_129_var = _loop0_129_rule(p))  // ((star_targets '='))*
+            (_loop0_145_var = _loop0_145_rule(p))  // ((star_targets '='))*
             &&
             (a = yield_expr_rule(p))  // yield_expr
             &&
@@ -14996,7 +17371,7 @@ invalid_assignment_rule(Parser *p)
             return NULL;
         }
         D(fprintf(stderr, "%*c> invalid_assignment[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "star_expressions augassign (yield_expr | star_expressions)"));
-        void *_tmp_130_var;
+        void *_tmp_146_var;
         expr_ty a;
         AugOperator* augassign_var;
         if (
@@ -15004,7 +17379,7 @@ invalid_assignment_rule(Parser *p)
             &&
             (augassign_var = augassign_rule(p))  // augassign
             &&
-            (_tmp_130_var = _tmp_130_rule(p))  // yield_expr | star_expressions
+            (_tmp_146_var = _tmp_146_rule(p))  // yield_expr | star_expressions
         )
         {
             D(fprintf(stderr, "%*c+ invalid_assignment[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "star_expressions augassign (yield_expr | star_expressions)"));
@@ -15262,11 +17637,11 @@ invalid_comprehension_rule(Parser *p)
             return NULL;
         }
         D(fprintf(stderr, "%*c> invalid_comprehension[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "('[' | '(' | '{') starred_expression for_if_clauses"));
-        void *_tmp_131_var;
+        void *_tmp_147_var;
         expr_ty a;
         asdl_comprehension_seq* for_if_clauses_var;
         if (
-            (_tmp_131_var = _tmp_131_rule(p))  // '[' | '(' | '{'
+            (_tmp_147_var = _tmp_147_rule(p))  // '[' | '(' | '{'
             &&
             (a = starred_expression_rule(p))  // starred_expression
             &&
@@ -15295,11 +17670,11 @@ invalid_comprehension_rule(Parser *p)
         Token * _literal;
         void *_opt_var;
         UNUSED(_opt_var); // Silence compiler warnings
-        void *_tmp_132_var;
+        void *_tmp_148_var;
         expr_ty a;
         asdl_comprehension_seq* for_if_clauses_var;
         if (
-            (_tmp_132_var = _tmp_132_rule(p))  // '[' | '{'
+            (_tmp_148_var = _tmp_148_rule(p))  // '[' | '{'
             &&
             (a = star_named_expression_rule(p))  // star_named_expression
             &&
@@ -15399,11 +17774,11 @@ invalid_parameters_rule(Parser *p)
             return NULL;
         }
         D(fprintf(stderr, "%*c> invalid_parameters[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "param_no_default* invalid_parameters_helper param_no_default"));
-        asdl_seq * _loop0_133_var;
+        asdl_seq * _loop0_149_var;
         void *invalid_parameters_helper_var;
         arg_ty param_no_default_var;
         if (
-            (_loop0_133_var = _loop0_133_rule(p))  // param_no_default*
+            (_loop0_149_var = _loop0_149_rule(p))  // param_no_default*
             &&
             (invalid_parameters_helper_var = invalid_parameters_helper_rule(p))  // invalid_parameters_helper
             &&
@@ -15470,13 +17845,13 @@ invalid_parameters_helper_rule(Parser *p)
             return NULL;
         }
         D(fprintf(stderr, "%*c> invalid_parameters_helper[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "param_with_default+"));
-        asdl_seq * _loop1_134_var;
+        asdl_seq * _loop1_150_var;
         if (
-            (_loop1_134_var = _loop1_134_rule(p))  // param_with_default+
+            (_loop1_150_var = _loop1_150_rule(p))  // param_with_default+
         )
         {
             D(fprintf(stderr, "%*c+ invalid_parameters_helper[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "param_with_default+"));
-            _res = _loop1_134_var;
+            _res = _loop1_150_var;
             goto done;
         }
         p->mark = _mark;
@@ -15507,11 +17882,11 @@ invalid_lambda_parameters_rule(Parser *p)
             return NULL;
         }
         D(fprintf(stderr, "%*c> invalid_lambda_parameters[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "lambda_param_no_default* invalid_lambda_parameters_helper lambda_param_no_default"));
-        asdl_seq * _loop0_135_var;
+        asdl_seq * _loop0_151_var;
         void *invalid_lambda_parameters_helper_var;
         arg_ty lambda_param_no_default_var;
         if (
-            (_loop0_135_var = _loop0_135_rule(p))  // lambda_param_no_default*
+            (_loop0_151_var = _loop0_151_rule(p))  // lambda_param_no_default*
             &&
             (invalid_lambda_parameters_helper_var = invalid_lambda_parameters_helper_rule(p))  // invalid_lambda_parameters_helper
             &&
@@ -15580,13 +17955,13 @@ invalid_lambda_parameters_helper_rule(Parser *p)
             return NULL;
         }
         D(fprintf(stderr, "%*c> invalid_lambda_parameters_helper[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "lambda_param_with_default+"));
-        asdl_seq * _loop1_136_var;
+        asdl_seq * _loop1_152_var;
         if (
-            (_loop1_136_var = _loop1_136_rule(p))  // lambda_param_with_default+
+            (_loop1_152_var = _loop1_152_rule(p))  // lambda_param_with_default+
         )
         {
             D(fprintf(stderr, "%*c+ invalid_lambda_parameters_helper[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "lambda_param_with_default+"));
-            _res = _loop1_136_var;
+            _res = _loop1_152_var;
             goto done;
         }
         p->mark = _mark;
@@ -15617,11 +17992,11 @@ invalid_star_etc_rule(Parser *p)
         }
         D(fprintf(stderr, "%*c> invalid_star_etc[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'*' (')' | ',' (')' | '**'))"));
         Token * _literal;
-        void *_tmp_137_var;
+        void *_tmp_153_var;
         if (
             (_literal = _PyPegen_expect_token(p, 16))  // token='*'
             &&
-            (_tmp_137_var = _tmp_137_rule(p))  // ')' | ',' (')' | '**')
+            (_tmp_153_var = _tmp_153_rule(p))  // ')' | ',' (')' | '**')
         )
         {
             D(fprintf(stderr, "%*c+ invalid_star_etc[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'*' (')' | ',' (')' | '**'))"));
@@ -15691,11 +18066,11 @@ invalid_lambda_star_etc_rule(Parser *p)
         }
         D(fprintf(stderr, "%*c> invalid_lambda_star_etc[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'*' (':' | ',' (':' | '**'))"));
         Token * _literal;
-        void *_tmp_138_var;
+        void *_tmp_154_var;
         if (
             (_literal = _PyPegen_expect_token(p, 16))  // token='*'
             &&
-            (_tmp_138_var = _tmp_138_rule(p))  // ':' | ',' (':' | '**')
+            (_tmp_154_var = _tmp_154_rule(p))  // ':' | ',' (':' | '**')
         )
         {
             D(fprintf(stderr, "%*c+ invalid_lambda_star_etc[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'*' (':' | ',' (':' | '**'))"));
@@ -15797,7 +18172,7 @@ invalid_with_item_rule(Parser *p)
             &&
             (a = expression_rule(p))  // expression
             &&
-            _PyPegen_lookahead(1, _tmp_139_rule, p)
+            _PyPegen_lookahead(1, _tmp_155_rule, p)
         )
         {
             D(fprintf(stderr, "%*c+ invalid_with_item[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "expression 'as' expression &(',' | ')' | ':')"));
@@ -15977,7 +18352,7 @@ invalid_with_stmt_rule(Parser *p)
             return NULL;
         }
         D(fprintf(stderr, "%*c> invalid_with_stmt[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "ASYNC? 'with' ','.(expression ['as' star_target])+ &&':'"));
-        asdl_seq * _gather_140_var;
+        asdl_seq * _gather_156_var;
         Token * _keyword;
         Token * _literal;
         void *_opt_var;
@@ -15987,13 +18362,13 @@ invalid_with_stmt_rule(Parser *p)
             &&
             (_keyword = _PyPegen_expect_token(p, 519))  // token='with'
             &&
-            (_gather_140_var = _gather_140_rule(p))  // ','.(expression ['as' star_target])+
+            (_gather_156_var = _gather_156_rule(p))  // ','.(expression ['as' star_target])+
             &&
             (_literal = _PyPegen_expect_forced_token(p, 11, ":"))  // forced_token=':'
         )
         {
             D(fprintf(stderr, "%*c+ invalid_with_stmt[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "ASYNC? 'with' ','.(expression ['as' star_target])+ &&':'"));
-            _res = _PyPegen_dummy_name(p, _opt_var, _keyword, _gather_140_var, _literal);
+            _res = _PyPegen_dummy_name(p, _opt_var, _keyword, _gather_156_var, _literal);
             goto done;
         }
         p->mark = _mark;
@@ -16006,7 +18381,7 @@ invalid_with_stmt_rule(Parser *p)
             return NULL;
         }
         D(fprintf(stderr, "%*c> invalid_with_stmt[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "ASYNC? 'with' '(' ','.(expressions ['as' star_target])+ ','? ')' &&':'"));
-        asdl_seq * _gather_142_var;
+        asdl_seq * _gather_158_var;
         Token * _keyword;
         Token * _literal;
         Token * _literal_1;
@@ -16022,7 +18397,7 @@ invalid_with_stmt_rule(Parser *p)
             &&
             (_literal = _PyPegen_expect_token(p, 7))  // token='('
             &&
-            (_gather_142_var = _gather_142_rule(p))  // ','.(expressions ['as' star_target])+
+            (_gather_158_var = _gather_158_rule(p))  // ','.(expressions ['as' star_target])+
             &&
             (_opt_var_1 = _PyPegen_expect_token(p, 12), 1)  // ','?
             &&
@@ -16032,7 +18407,7 @@ invalid_with_stmt_rule(Parser *p)
         )
         {
             D(fprintf(stderr, "%*c+ invalid_with_stmt[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "ASYNC? 'with' '(' ','.(expressions ['as' star_target])+ ','? ')' &&':'"));
-            _res = _PyPegen_dummy_name(p, _opt_var, _keyword, _literal, _gather_142_var, _opt_var_1, _literal_1, _literal_2);
+            _res = _PyPegen_dummy_name(p, _opt_var, _keyword, _literal, _gather_158_var, _opt_var_1, _literal_1, _literal_2);
             goto done;
         }
         p->mark = _mark;
@@ -16081,7 +18456,7 @@ invalid_except_block_rule(Parser *p)
             &&
             (expressions_var = expressions_rule(p))  // expressions
             &&
-            (_opt_var = _tmp_144_rule(p), 1)  // ['as' NAME]
+            (_opt_var = _tmp_160_rule(p), 1)  // ['as' NAME]
             &&
             (_literal_1 = _PyPegen_expect_token(p, 11))  // token=':'
         )
@@ -16115,7 +18490,7 @@ invalid_except_block_rule(Parser *p)
             &&
             (expression_var = expression_rule(p))  // expression
             &&
-            (_opt_var = _tmp_145_rule(p), 1)  // ['as' NAME]
+            (_opt_var = _tmp_161_rule(p), 1)  // ['as' NAME]
             &&
             (_literal = _PyPegen_expect_forced_token(p, 11, ":"))  // forced_token=':'
         )
@@ -17003,7 +19378,7 @@ _tmp_15_rule(Parser *p)
         D(fprintf(stderr, "%*c> _tmp_15[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'def'"));
         Token * _keyword;
         if (
-            (_keyword = _PyPegen_expect_token(p, 523))  // token='def'
+            (_keyword = _PyPegen_expect_token(p, 526))  // token='def'
         )
         {
             D(fprintf(stderr, "%*c+ _tmp_15[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'def'"));
@@ -17077,7 +19452,7 @@ _tmp_16_rule(Parser *p)
         D(fprintf(stderr, "%*c> _tmp_16[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'class'"));
         Token * _keyword;
         if (
-            (_keyword = _PyPegen_expect_token(p, 524))  // token='class'
+            (_keyword = _PyPegen_expect_token(p, 527))  // token='class'
         )
         {
             D(fprintf(stderr, "%*c+ _tmp_16[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'class'"));
@@ -17404,12 +19779,12 @@ _loop1_22_rule(Parser *p)
             return NULL;
         }
         D(fprintf(stderr, "%*c> _loop1_22[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "(star_targets '=')"));
-        void *_tmp_146_var;
+        void *_tmp_162_var;
         while (
-            (_tmp_146_var = _tmp_146_rule(p))  // star_targets '='
+            (_tmp_162_var = _tmp_162_rule(p))  // star_targets '='
         )
         {
-            _res = _tmp_146_var;
+            _res = _tmp_162_var;
             if (_n == _children_capacity) {
                 _children_capacity *= 2;
                 void **_new_children = PyMem_Realloc(_children, _children_capacity*sizeof(void *));
@@ -17912,12 +20287,12 @@ _loop0_31_rule(Parser *p)
             return NULL;
         }
         D(fprintf(stderr, "%*c> _loop0_31[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "('.' | '...')"));
-        void *_tmp_147_var;
+        void *_tmp_163_var;
         while (
-            (_tmp_147_var = _tmp_147_rule(p))  // '.' | '...'
+            (_tmp_163_var = _tmp_163_rule(p))  // '.' | '...'
         )
         {
-            _res = _tmp_147_var;
+            _res = _tmp_163_var;
             if (_n == _children_capacity) {
                 _children_capacity *= 2;
                 void **_new_children = PyMem_Realloc(_children, _children_capacity*sizeof(void *));
@@ -17978,12 +20353,12 @@ _loop1_32_rule(Parser *p)
             return NULL;
         }
         D(fprintf(stderr, "%*c> _loop1_32[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "('.' | '...')"));
-        void *_tmp_148_var;
+        void *_tmp_164_var;
         while (
-            (_tmp_148_var = _tmp_148_rule(p))  // '.' | '...'
+            (_tmp_164_var = _tmp_164_rule(p))  // '.' | '...'
         )
         {
-            _res = _tmp_148_var;
+            _res = _tmp_164_var;
             if (_n == _children_capacity) {
                 _children_capacity *= 2;
                 void **_new_children = PyMem_Realloc(_children, _children_capacity*sizeof(void *));
@@ -18983,9 +21358,963 @@ _tmp_49_rule(Parser *p)
     return _res;
 }
 
-// _tmp_50: 'from' expression
+// _loop1_50: case_block
+static asdl_seq *
+_loop1_50_rule(Parser *p)
+{
+    D(p->level++);
+    if (p->error_indicator) {
+        D(p->level--);
+        return NULL;
+    }
+    void *_res = NULL;
+    int _mark = p->mark;
+    int _start_mark = p->mark;
+    void **_children = PyMem_Malloc(sizeof(void *));
+    if (!_children) {
+        p->error_indicator = 1;
+        PyErr_NoMemory();
+        D(p->level--);
+        return NULL;
+    }
+    ssize_t _children_capacity = 1;
+    ssize_t _n = 0;
+    { // case_block
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> _loop1_50[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "case_block"));
+        match_case_ty case_block_var;
+        while (
+            (case_block_var = case_block_rule(p))  // case_block
+        )
+        {
+            _res = case_block_var;
+            if (_n == _children_capacity) {
+                _children_capacity *= 2;
+                void **_new_children = PyMem_Realloc(_children, _children_capacity*sizeof(void *));
+                if (!_new_children) {
+                    p->error_indicator = 1;
+                    PyErr_NoMemory();
+                    D(p->level--);
+                    return NULL;
+                }
+                _children = _new_children;
+            }
+            _children[_n++] = _res;
+            _mark = p->mark;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s _loop1_50[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "case_block"));
+    }
+    if (_n == 0 || p->error_indicator) {
+        PyMem_Free(_children);
+        D(p->level--);
+        return NULL;
+    }
+    asdl_seq *_seq = (asdl_seq*)_Py_asdl_generic_seq_new(_n, p->arena);
+    if (!_seq) {
+        PyMem_Free(_children);
+        p->error_indicator = 1;
+        PyErr_NoMemory();
+        D(p->level--);
+        return NULL;
+    }
+    for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
+    PyMem_Free(_children);
+    _PyPegen_insert_memo(p, _start_mark, _loop1_50_type, _seq);
+    D(p->level--);
+    return _seq;
+}
+
+// _loop0_52: '|' closed_pattern
+static asdl_seq *
+_loop0_52_rule(Parser *p)
+{
+    D(p->level++);
+    if (p->error_indicator) {
+        D(p->level--);
+        return NULL;
+    }
+    void *_res = NULL;
+    int _mark = p->mark;
+    int _start_mark = p->mark;
+    void **_children = PyMem_Malloc(sizeof(void *));
+    if (!_children) {
+        p->error_indicator = 1;
+        PyErr_NoMemory();
+        D(p->level--);
+        return NULL;
+    }
+    ssize_t _children_capacity = 1;
+    ssize_t _n = 0;
+    { // '|' closed_pattern
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> _loop0_52[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'|' closed_pattern"));
+        Token * _literal;
+        expr_ty elem;
+        while (
+            (_literal = _PyPegen_expect_token(p, 18))  // token='|'
+            &&
+            (elem = closed_pattern_rule(p))  // closed_pattern
+        )
+        {
+            _res = elem;
+            if (_res == NULL && PyErr_Occurred()) {
+                p->error_indicator = 1;
+                PyMem_Free(_children);
+                D(p->level--);
+                return NULL;
+            }
+            if (_n == _children_capacity) {
+                _children_capacity *= 2;
+                void **_new_children = PyMem_Realloc(_children, _children_capacity*sizeof(void *));
+                if (!_new_children) {
+                    p->error_indicator = 1;
+                    PyErr_NoMemory();
+                    D(p->level--);
+                    return NULL;
+                }
+                _children = _new_children;
+            }
+            _children[_n++] = _res;
+            _mark = p->mark;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s _loop0_52[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'|' closed_pattern"));
+    }
+    asdl_seq *_seq = (asdl_seq*)_Py_asdl_generic_seq_new(_n, p->arena);
+    if (!_seq) {
+        PyMem_Free(_children);
+        p->error_indicator = 1;
+        PyErr_NoMemory();
+        D(p->level--);
+        return NULL;
+    }
+    for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
+    PyMem_Free(_children);
+    _PyPegen_insert_memo(p, _start_mark, _loop0_52_type, _seq);
+    D(p->level--);
+    return _seq;
+}
+
+// _gather_51: closed_pattern _loop0_52
+static asdl_seq *
+_gather_51_rule(Parser *p)
+{
+    D(p->level++);
+    if (p->error_indicator) {
+        D(p->level--);
+        return NULL;
+    }
+    asdl_seq * _res = NULL;
+    int _mark = p->mark;
+    { // closed_pattern _loop0_52
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> _gather_51[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "closed_pattern _loop0_52"));
+        expr_ty elem;
+        asdl_seq * seq;
+        if (
+            (elem = closed_pattern_rule(p))  // closed_pattern
+            &&
+            (seq = _loop0_52_rule(p))  // _loop0_52
+        )
+        {
+            D(fprintf(stderr, "%*c+ _gather_51[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "closed_pattern _loop0_52"));
+            _res = _PyPegen_seq_insert_in_front(p, elem, seq);
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s _gather_51[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "closed_pattern _loop0_52"));
+    }
+    _res = NULL;
+  done:
+    D(p->level--);
+    return _res;
+}
+
+// _tmp_53: '+' | '-'
+static void *
+_tmp_53_rule(Parser *p)
+{
+    D(p->level++);
+    if (p->error_indicator) {
+        D(p->level--);
+        return NULL;
+    }
+    void * _res = NULL;
+    int _mark = p->mark;
+    { // '+'
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> _tmp_53[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'+'"));
+        Token * _literal;
+        if (
+            (_literal = _PyPegen_expect_token(p, 14))  // token='+'
+        )
+        {
+            D(fprintf(stderr, "%*c+ _tmp_53[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'+'"));
+            _res = _literal;
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s _tmp_53[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'+'"));
+    }
+    { // '-'
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> _tmp_53[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'-'"));
+        Token * _literal;
+        if (
+            (_literal = _PyPegen_expect_token(p, 15))  // token='-'
+        )
+        {
+            D(fprintf(stderr, "%*c+ _tmp_53[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'-'"));
+            _res = _literal;
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s _tmp_53[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'-'"));
+    }
+    _res = NULL;
+  done:
+    D(p->level--);
+    return _res;
+}
+
+// _tmp_54: '.' | '(' | '='
+static void *
+_tmp_54_rule(Parser *p)
+{
+    D(p->level++);
+    if (p->error_indicator) {
+        D(p->level--);
+        return NULL;
+    }
+    void * _res = NULL;
+    int _mark = p->mark;
+    { // '.'
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> _tmp_54[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'.'"));
+        Token * _literal;
+        if (
+            (_literal = _PyPegen_expect_token(p, 23))  // token='.'
+        )
+        {
+            D(fprintf(stderr, "%*c+ _tmp_54[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'.'"));
+            _res = _literal;
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s _tmp_54[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'.'"));
+    }
+    { // '('
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> _tmp_54[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'('"));
+        Token * _literal;
+        if (
+            (_literal = _PyPegen_expect_token(p, 7))  // token='('
+        )
+        {
+            D(fprintf(stderr, "%*c+ _tmp_54[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'('"));
+            _res = _literal;
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s _tmp_54[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'('"));
+    }
+    { // '='
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> _tmp_54[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'='"));
+        Token * _literal;
+        if (
+            (_literal = _PyPegen_expect_token(p, 22))  // token='='
+        )
+        {
+            D(fprintf(stderr, "%*c+ _tmp_54[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'='"));
+            _res = _literal;
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s _tmp_54[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'='"));
+    }
+    _res = NULL;
+  done:
+    D(p->level--);
+    return _res;
+}
+
+// _tmp_55: '.' | '(' | '='
+static void *
+_tmp_55_rule(Parser *p)
+{
+    D(p->level++);
+    if (p->error_indicator) {
+        D(p->level--);
+        return NULL;
+    }
+    void * _res = NULL;
+    int _mark = p->mark;
+    { // '.'
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> _tmp_55[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'.'"));
+        Token * _literal;
+        if (
+            (_literal = _PyPegen_expect_token(p, 23))  // token='.'
+        )
+        {
+            D(fprintf(stderr, "%*c+ _tmp_55[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'.'"));
+            _res = _literal;
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s _tmp_55[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'.'"));
+    }
+    { // '('
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> _tmp_55[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'('"));
+        Token * _literal;
+        if (
+            (_literal = _PyPegen_expect_token(p, 7))  // token='('
+        )
+        {
+            D(fprintf(stderr, "%*c+ _tmp_55[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'('"));
+            _res = _literal;
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s _tmp_55[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'('"));
+    }
+    { // '='
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> _tmp_55[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'='"));
+        Token * _literal;
+        if (
+            (_literal = _PyPegen_expect_token(p, 22))  // token='='
+        )
+        {
+            D(fprintf(stderr, "%*c+ _tmp_55[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'='"));
+            _res = _literal;
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s _tmp_55[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'='"));
+    }
+    _res = NULL;
+  done:
+    D(p->level--);
+    return _res;
+}
+
+// _loop0_57: ',' maybe_star_pattern
+static asdl_seq *
+_loop0_57_rule(Parser *p)
+{
+    D(p->level++);
+    if (p->error_indicator) {
+        D(p->level--);
+        return NULL;
+    }
+    void *_res = NULL;
+    int _mark = p->mark;
+    int _start_mark = p->mark;
+    void **_children = PyMem_Malloc(sizeof(void *));
+    if (!_children) {
+        p->error_indicator = 1;
+        PyErr_NoMemory();
+        D(p->level--);
+        return NULL;
+    }
+    ssize_t _children_capacity = 1;
+    ssize_t _n = 0;
+    { // ',' maybe_star_pattern
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> _loop0_57[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' maybe_star_pattern"));
+        Token * _literal;
+        expr_ty elem;
+        while (
+            (_literal = _PyPegen_expect_token(p, 12))  // token=','
+            &&
+            (elem = maybe_star_pattern_rule(p))  // maybe_star_pattern
+        )
+        {
+            _res = elem;
+            if (_res == NULL && PyErr_Occurred()) {
+                p->error_indicator = 1;
+                PyMem_Free(_children);
+                D(p->level--);
+                return NULL;
+            }
+            if (_n == _children_capacity) {
+                _children_capacity *= 2;
+                void **_new_children = PyMem_Realloc(_children, _children_capacity*sizeof(void *));
+                if (!_new_children) {
+                    p->error_indicator = 1;
+                    PyErr_NoMemory();
+                    D(p->level--);
+                    return NULL;
+                }
+                _children = _new_children;
+            }
+            _children[_n++] = _res;
+            _mark = p->mark;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s _loop0_57[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "',' maybe_star_pattern"));
+    }
+    asdl_seq *_seq = (asdl_seq*)_Py_asdl_generic_seq_new(_n, p->arena);
+    if (!_seq) {
+        PyMem_Free(_children);
+        p->error_indicator = 1;
+        PyErr_NoMemory();
+        D(p->level--);
+        return NULL;
+    }
+    for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
+    PyMem_Free(_children);
+    _PyPegen_insert_memo(p, _start_mark, _loop0_57_type, _seq);
+    D(p->level--);
+    return _seq;
+}
+
+// _gather_56: maybe_star_pattern _loop0_57
+static asdl_seq *
+_gather_56_rule(Parser *p)
+{
+    D(p->level++);
+    if (p->error_indicator) {
+        D(p->level--);
+        return NULL;
+    }
+    asdl_seq * _res = NULL;
+    int _mark = p->mark;
+    { // maybe_star_pattern _loop0_57
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> _gather_56[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "maybe_star_pattern _loop0_57"));
+        expr_ty elem;
+        asdl_seq * seq;
+        if (
+            (elem = maybe_star_pattern_rule(p))  // maybe_star_pattern
+            &&
+            (seq = _loop0_57_rule(p))  // _loop0_57
+        )
+        {
+            D(fprintf(stderr, "%*c+ _gather_56[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "maybe_star_pattern _loop0_57"));
+            _res = _PyPegen_seq_insert_in_front(p, elem, seq);
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s _gather_56[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "maybe_star_pattern _loop0_57"));
+    }
+    _res = NULL;
+  done:
+    D(p->level--);
+    return _res;
+}
+
+// _tmp_58: capture_pattern | wildcard_pattern
+static void *
+_tmp_58_rule(Parser *p)
+{
+    D(p->level++);
+    if (p->error_indicator) {
+        D(p->level--);
+        return NULL;
+    }
+    void * _res = NULL;
+    int _mark = p->mark;
+    { // capture_pattern
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> _tmp_58[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "capture_pattern"));
+        expr_ty capture_pattern_var;
+        if (
+            (capture_pattern_var = capture_pattern_rule(p))  // capture_pattern
+        )
+        {
+            D(fprintf(stderr, "%*c+ _tmp_58[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "capture_pattern"));
+            _res = capture_pattern_var;
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s _tmp_58[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "capture_pattern"));
+    }
+    { // wildcard_pattern
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> _tmp_58[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "wildcard_pattern"));
+        expr_ty wildcard_pattern_var;
+        if (
+            (wildcard_pattern_var = wildcard_pattern_rule(p))  // wildcard_pattern
+        )
+        {
+            D(fprintf(stderr, "%*c+ _tmp_58[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "wildcard_pattern"));
+            _res = wildcard_pattern_var;
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s _tmp_58[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "wildcard_pattern"));
+    }
+    _res = NULL;
+  done:
+    D(p->level--);
+    return _res;
+}
+
+// _loop0_60: ',' key_value_pattern
+static asdl_seq *
+_loop0_60_rule(Parser *p)
+{
+    D(p->level++);
+    if (p->error_indicator) {
+        D(p->level--);
+        return NULL;
+    }
+    void *_res = NULL;
+    int _mark = p->mark;
+    int _start_mark = p->mark;
+    void **_children = PyMem_Malloc(sizeof(void *));
+    if (!_children) {
+        p->error_indicator = 1;
+        PyErr_NoMemory();
+        D(p->level--);
+        return NULL;
+    }
+    ssize_t _children_capacity = 1;
+    ssize_t _n = 0;
+    { // ',' key_value_pattern
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> _loop0_60[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' key_value_pattern"));
+        Token * _literal;
+        KeyValuePair* elem;
+        while (
+            (_literal = _PyPegen_expect_token(p, 12))  // token=','
+            &&
+            (elem = key_value_pattern_rule(p))  // key_value_pattern
+        )
+        {
+            _res = elem;
+            if (_res == NULL && PyErr_Occurred()) {
+                p->error_indicator = 1;
+                PyMem_Free(_children);
+                D(p->level--);
+                return NULL;
+            }
+            if (_n == _children_capacity) {
+                _children_capacity *= 2;
+                void **_new_children = PyMem_Realloc(_children, _children_capacity*sizeof(void *));
+                if (!_new_children) {
+                    p->error_indicator = 1;
+                    PyErr_NoMemory();
+                    D(p->level--);
+                    return NULL;
+                }
+                _children = _new_children;
+            }
+            _children[_n++] = _res;
+            _mark = p->mark;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s _loop0_60[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "',' key_value_pattern"));
+    }
+    asdl_seq *_seq = (asdl_seq*)_Py_asdl_generic_seq_new(_n, p->arena);
+    if (!_seq) {
+        PyMem_Free(_children);
+        p->error_indicator = 1;
+        PyErr_NoMemory();
+        D(p->level--);
+        return NULL;
+    }
+    for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
+    PyMem_Free(_children);
+    _PyPegen_insert_memo(p, _start_mark, _loop0_60_type, _seq);
+    D(p->level--);
+    return _seq;
+}
+
+// _gather_59: key_value_pattern _loop0_60
+static asdl_seq *
+_gather_59_rule(Parser *p)
+{
+    D(p->level++);
+    if (p->error_indicator) {
+        D(p->level--);
+        return NULL;
+    }
+    asdl_seq * _res = NULL;
+    int _mark = p->mark;
+    { // key_value_pattern _loop0_60
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> _gather_59[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "key_value_pattern _loop0_60"));
+        KeyValuePair* elem;
+        asdl_seq * seq;
+        if (
+            (elem = key_value_pattern_rule(p))  // key_value_pattern
+            &&
+            (seq = _loop0_60_rule(p))  // _loop0_60
+        )
+        {
+            D(fprintf(stderr, "%*c+ _gather_59[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "key_value_pattern _loop0_60"));
+            _res = _PyPegen_seq_insert_in_front(p, elem, seq);
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s _gather_59[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "key_value_pattern _loop0_60"));
+    }
+    _res = NULL;
+  done:
+    D(p->level--);
+    return _res;
+}
+
+// _tmp_61: literal_pattern | value_pattern
 static void *
-_tmp_50_rule(Parser *p)
+_tmp_61_rule(Parser *p)
+{
+    D(p->level++);
+    if (p->error_indicator) {
+        D(p->level--);
+        return NULL;
+    }
+    void * _res = NULL;
+    int _mark = p->mark;
+    { // literal_pattern
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> _tmp_61[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "literal_pattern"));
+        expr_ty literal_pattern_var;
+        if (
+            (literal_pattern_var = literal_pattern_rule(p))  // literal_pattern
+        )
+        {
+            D(fprintf(stderr, "%*c+ _tmp_61[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "literal_pattern"));
+            _res = literal_pattern_var;
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s _tmp_61[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "literal_pattern"));
+    }
+    { // value_pattern
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> _tmp_61[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "value_pattern"));
+        expr_ty value_pattern_var;
+        if (
+            (value_pattern_var = value_pattern_rule(p))  // value_pattern
+        )
+        {
+            D(fprintf(stderr, "%*c+ _tmp_61[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "value_pattern"));
+            _res = value_pattern_var;
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s _tmp_61[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "value_pattern"));
+    }
+    _res = NULL;
+  done:
+    D(p->level--);
+    return _res;
+}
+
+// _loop0_63: ',' pattern
+static asdl_seq *
+_loop0_63_rule(Parser *p)
+{
+    D(p->level++);
+    if (p->error_indicator) {
+        D(p->level--);
+        return NULL;
+    }
+    void *_res = NULL;
+    int _mark = p->mark;
+    int _start_mark = p->mark;
+    void **_children = PyMem_Malloc(sizeof(void *));
+    if (!_children) {
+        p->error_indicator = 1;
+        PyErr_NoMemory();
+        D(p->level--);
+        return NULL;
+    }
+    ssize_t _children_capacity = 1;
+    ssize_t _n = 0;
+    { // ',' pattern
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> _loop0_63[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' pattern"));
+        Token * _literal;
+        expr_ty elem;
+        while (
+            (_literal = _PyPegen_expect_token(p, 12))  // token=','
+            &&
+            (elem = pattern_rule(p))  // pattern
+        )
+        {
+            _res = elem;
+            if (_res == NULL && PyErr_Occurred()) {
+                p->error_indicator = 1;
+                PyMem_Free(_children);
+                D(p->level--);
+                return NULL;
+            }
+            if (_n == _children_capacity) {
+                _children_capacity *= 2;
+                void **_new_children = PyMem_Realloc(_children, _children_capacity*sizeof(void *));
+                if (!_new_children) {
+                    p->error_indicator = 1;
+                    PyErr_NoMemory();
+                    D(p->level--);
+                    return NULL;
+                }
+                _children = _new_children;
+            }
+            _children[_n++] = _res;
+            _mark = p->mark;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s _loop0_63[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "',' pattern"));
+    }
+    asdl_seq *_seq = (asdl_seq*)_Py_asdl_generic_seq_new(_n, p->arena);
+    if (!_seq) {
+        PyMem_Free(_children);
+        p->error_indicator = 1;
+        PyErr_NoMemory();
+        D(p->level--);
+        return NULL;
+    }
+    for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
+    PyMem_Free(_children);
+    _PyPegen_insert_memo(p, _start_mark, _loop0_63_type, _seq);
+    D(p->level--);
+    return _seq;
+}
+
+// _gather_62: pattern _loop0_63
+static asdl_seq *
+_gather_62_rule(Parser *p)
+{
+    D(p->level++);
+    if (p->error_indicator) {
+        D(p->level--);
+        return NULL;
+    }
+    asdl_seq * _res = NULL;
+    int _mark = p->mark;
+    { // pattern _loop0_63
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> _gather_62[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "pattern _loop0_63"));
+        expr_ty elem;
+        asdl_seq * seq;
+        if (
+            (elem = pattern_rule(p))  // pattern
+            &&
+            (seq = _loop0_63_rule(p))  // _loop0_63
+        )
+        {
+            D(fprintf(stderr, "%*c+ _gather_62[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "pattern _loop0_63"));
+            _res = _PyPegen_seq_insert_in_front(p, elem, seq);
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s _gather_62[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "pattern _loop0_63"));
+    }
+    _res = NULL;
+  done:
+    D(p->level--);
+    return _res;
+}
+
+// _loop0_65: ',' keyword_pattern
+static asdl_seq *
+_loop0_65_rule(Parser *p)
+{
+    D(p->level++);
+    if (p->error_indicator) {
+        D(p->level--);
+        return NULL;
+    }
+    void *_res = NULL;
+    int _mark = p->mark;
+    int _start_mark = p->mark;
+    void **_children = PyMem_Malloc(sizeof(void *));
+    if (!_children) {
+        p->error_indicator = 1;
+        PyErr_NoMemory();
+        D(p->level--);
+        return NULL;
+    }
+    ssize_t _children_capacity = 1;
+    ssize_t _n = 0;
+    { // ',' keyword_pattern
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> _loop0_65[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' keyword_pattern"));
+        Token * _literal;
+        keyword_ty elem;
+        while (
+            (_literal = _PyPegen_expect_token(p, 12))  // token=','
+            &&
+            (elem = keyword_pattern_rule(p))  // keyword_pattern
+        )
+        {
+            _res = elem;
+            if (_res == NULL && PyErr_Occurred()) {
+                p->error_indicator = 1;
+                PyMem_Free(_children);
+                D(p->level--);
+                return NULL;
+            }
+            if (_n == _children_capacity) {
+                _children_capacity *= 2;
+                void **_new_children = PyMem_Realloc(_children, _children_capacity*sizeof(void *));
+                if (!_new_children) {
+                    p->error_indicator = 1;
+                    PyErr_NoMemory();
+                    D(p->level--);
+                    return NULL;
+                }
+                _children = _new_children;
+            }
+            _children[_n++] = _res;
+            _mark = p->mark;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s _loop0_65[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "',' keyword_pattern"));
+    }
+    asdl_seq *_seq = (asdl_seq*)_Py_asdl_generic_seq_new(_n, p->arena);
+    if (!_seq) {
+        PyMem_Free(_children);
+        p->error_indicator = 1;
+        PyErr_NoMemory();
+        D(p->level--);
+        return NULL;
+    }
+    for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
+    PyMem_Free(_children);
+    _PyPegen_insert_memo(p, _start_mark, _loop0_65_type, _seq);
+    D(p->level--);
+    return _seq;
+}
+
+// _gather_64: keyword_pattern _loop0_65
+static asdl_seq *
+_gather_64_rule(Parser *p)
+{
+    D(p->level++);
+    if (p->error_indicator) {
+        D(p->level--);
+        return NULL;
+    }
+    asdl_seq * _res = NULL;
+    int _mark = p->mark;
+    { // keyword_pattern _loop0_65
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> _gather_64[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "keyword_pattern _loop0_65"));
+        keyword_ty elem;
+        asdl_seq * seq;
+        if (
+            (elem = keyword_pattern_rule(p))  // keyword_pattern
+            &&
+            (seq = _loop0_65_rule(p))  // _loop0_65
+        )
+        {
+            D(fprintf(stderr, "%*c+ _gather_64[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "keyword_pattern _loop0_65"));
+            _res = _PyPegen_seq_insert_in_front(p, elem, seq);
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s _gather_64[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "keyword_pattern _loop0_65"));
+    }
+    _res = NULL;
+  done:
+    D(p->level--);
+    return _res;
+}
+
+// _tmp_66: 'from' expression
+static void *
+_tmp_66_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -18999,7 +22328,7 @@ _tmp_50_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_50[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'from' expression"));
+        D(fprintf(stderr, "%*c> _tmp_66[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'from' expression"));
         Token * _keyword;
         expr_ty z;
         if (
@@ -19008,7 +22337,7 @@ _tmp_50_rule(Parser *p)
             (z = expression_rule(p))  // expression
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_50[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'from' expression"));
+            D(fprintf(stderr, "%*c+ _tmp_66[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'from' expression"));
             _res = z;
             if (_res == NULL && PyErr_Occurred()) {
                 p->error_indicator = 1;
@@ -19018,7 +22347,7 @@ _tmp_50_rule(Parser *p)
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_50[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_66[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'from' expression"));
     }
     _res = NULL;
@@ -19027,9 +22356,9 @@ _tmp_50_rule(Parser *p)
     return _res;
 }
 
-// _tmp_51: '->' expression
+// _tmp_67: '->' expression
 static void *
-_tmp_51_rule(Parser *p)
+_tmp_67_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -19043,7 +22372,7 @@ _tmp_51_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_51[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'->' expression"));
+        D(fprintf(stderr, "%*c> _tmp_67[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'->' expression"));
         Token * _literal;
         expr_ty z;
         if (
@@ -19052,7 +22381,7 @@ _tmp_51_rule(Parser *p)
             (z = expression_rule(p))  // expression
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_51[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'->' expression"));
+            D(fprintf(stderr, "%*c+ _tmp_67[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'->' expression"));
             _res = z;
             if (_res == NULL && PyErr_Occurred()) {
                 p->error_indicator = 1;
@@ -19062,7 +22391,7 @@ _tmp_51_rule(Parser *p)
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_51[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_67[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'->' expression"));
     }
     _res = NULL;
@@ -19071,9 +22400,9 @@ _tmp_51_rule(Parser *p)
     return _res;
 }
 
-// _tmp_52: '->' expression
+// _tmp_68: '->' expression
 static void *
-_tmp_52_rule(Parser *p)
+_tmp_68_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -19087,7 +22416,7 @@ _tmp_52_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_52[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'->' expression"));
+        D(fprintf(stderr, "%*c> _tmp_68[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'->' expression"));
         Token * _literal;
         expr_ty z;
         if (
@@ -19096,7 +22425,7 @@ _tmp_52_rule(Parser *p)
             (z = expression_rule(p))  // expression
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_52[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'->' expression"));
+            D(fprintf(stderr, "%*c+ _tmp_68[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'->' expression"));
             _res = z;
             if (_res == NULL && PyErr_Occurred()) {
                 p->error_indicator = 1;
@@ -19106,7 +22435,7 @@ _tmp_52_rule(Parser *p)
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_52[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_68[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'->' expression"));
     }
     _res = NULL;
@@ -19115,9 +22444,9 @@ _tmp_52_rule(Parser *p)
     return _res;
 }
 
-// _tmp_53: NEWLINE INDENT
+// _tmp_69: NEWLINE INDENT
 static void *
-_tmp_53_rule(Parser *p)
+_tmp_69_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -19131,7 +22460,7 @@ _tmp_53_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_53[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "NEWLINE INDENT"));
+        D(fprintf(stderr, "%*c> _tmp_69[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "NEWLINE INDENT"));
         Token * indent_var;
         Token * newline_var;
         if (
@@ -19140,12 +22469,12 @@ _tmp_53_rule(Parser *p)
             (indent_var = _PyPegen_expect_token(p, INDENT))  // token='INDENT'
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_53[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "NEWLINE INDENT"));
+            D(fprintf(stderr, "%*c+ _tmp_69[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "NEWLINE INDENT"));
             _res = _PyPegen_dummy_name(p, newline_var, indent_var);
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_53[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_69[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "NEWLINE INDENT"));
     }
     _res = NULL;
@@ -19154,9 +22483,9 @@ _tmp_53_rule(Parser *p)
     return _res;
 }
 
-// _loop0_54: param_no_default
+// _loop0_70: param_no_default
 static asdl_seq *
-_loop0_54_rule(Parser *p)
+_loop0_70_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -19180,7 +22509,7 @@ _loop0_54_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop0_54[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "param_no_default"));
+        D(fprintf(stderr, "%*c> _loop0_70[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "param_no_default"));
         arg_ty param_no_default_var;
         while (
             (param_no_default_var = param_no_default_rule(p))  // param_no_default
@@ -19202,7 +22531,7 @@ _loop0_54_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop0_54[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop0_70[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "param_no_default"));
     }
     asdl_seq *_seq = (asdl_seq*)_Py_asdl_generic_seq_new(_n, p->arena);
@@ -19215,14 +22544,14 @@ _loop0_54_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop0_54_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop0_70_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _loop0_55: param_with_default
+// _loop0_71: param_with_default
 static asdl_seq *
-_loop0_55_rule(Parser *p)
+_loop0_71_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -19246,7 +22575,7 @@ _loop0_55_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop0_55[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "param_with_default"));
+        D(fprintf(stderr, "%*c> _loop0_71[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "param_with_default"));
         NameDefaultPair* param_with_default_var;
         while (
             (param_with_default_var = param_with_default_rule(p))  // param_with_default
@@ -19268,7 +22597,7 @@ _loop0_55_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop0_55[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop0_71[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "param_with_default"));
     }
     asdl_seq *_seq = (asdl_seq*)_Py_asdl_generic_seq_new(_n, p->arena);
@@ -19281,14 +22610,14 @@ _loop0_55_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop0_55_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop0_71_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _loop0_56: param_with_default
+// _loop0_72: param_with_default
 static asdl_seq *
-_loop0_56_rule(Parser *p)
+_loop0_72_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -19312,7 +22641,7 @@ _loop0_56_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop0_56[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "param_with_default"));
+        D(fprintf(stderr, "%*c> _loop0_72[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "param_with_default"));
         NameDefaultPair* param_with_default_var;
         while (
             (param_with_default_var = param_with_default_rule(p))  // param_with_default
@@ -19334,7 +22663,7 @@ _loop0_56_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop0_56[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop0_72[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "param_with_default"));
     }
     asdl_seq *_seq = (asdl_seq*)_Py_asdl_generic_seq_new(_n, p->arena);
@@ -19347,14 +22676,14 @@ _loop0_56_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop0_56_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop0_72_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _loop1_57: param_no_default
+// _loop1_73: param_no_default
 static asdl_seq *
-_loop1_57_rule(Parser *p)
+_loop1_73_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -19378,7 +22707,7 @@ _loop1_57_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop1_57[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "param_no_default"));
+        D(fprintf(stderr, "%*c> _loop1_73[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "param_no_default"));
         arg_ty param_no_default_var;
         while (
             (param_no_default_var = param_no_default_rule(p))  // param_no_default
@@ -19400,7 +22729,7 @@ _loop1_57_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop1_57[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop1_73[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "param_no_default"));
     }
     if (_n == 0 || p->error_indicator) {
@@ -19418,14 +22747,14 @@ _loop1_57_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop1_57_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop1_73_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _loop0_58: param_with_default
+// _loop0_74: param_with_default
 static asdl_seq *
-_loop0_58_rule(Parser *p)
+_loop0_74_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -19449,7 +22778,7 @@ _loop0_58_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop0_58[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "param_with_default"));
+        D(fprintf(stderr, "%*c> _loop0_74[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "param_with_default"));
         NameDefaultPair* param_with_default_var;
         while (
             (param_with_default_var = param_with_default_rule(p))  // param_with_default
@@ -19471,7 +22800,7 @@ _loop0_58_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop0_58[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop0_74[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "param_with_default"));
     }
     asdl_seq *_seq = (asdl_seq*)_Py_asdl_generic_seq_new(_n, p->arena);
@@ -19484,14 +22813,14 @@ _loop0_58_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop0_58_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop0_74_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _loop1_59: param_with_default
+// _loop1_75: param_with_default
 static asdl_seq *
-_loop1_59_rule(Parser *p)
+_loop1_75_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -19515,7 +22844,7 @@ _loop1_59_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop1_59[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "param_with_default"));
+        D(fprintf(stderr, "%*c> _loop1_75[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "param_with_default"));
         NameDefaultPair* param_with_default_var;
         while (
             (param_with_default_var = param_with_default_rule(p))  // param_with_default
@@ -19537,7 +22866,7 @@ _loop1_59_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop1_59[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop1_75[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "param_with_default"));
     }
     if (_n == 0 || p->error_indicator) {
@@ -19555,14 +22884,14 @@ _loop1_59_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop1_59_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop1_75_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _loop1_60: param_no_default
+// _loop1_76: param_no_default
 static asdl_seq *
-_loop1_60_rule(Parser *p)
+_loop1_76_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -19586,7 +22915,7 @@ _loop1_60_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop1_60[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "param_no_default"));
+        D(fprintf(stderr, "%*c> _loop1_76[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "param_no_default"));
         arg_ty param_no_default_var;
         while (
             (param_no_default_var = param_no_default_rule(p))  // param_no_default
@@ -19608,7 +22937,7 @@ _loop1_60_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop1_60[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop1_76[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "param_no_default"));
     }
     if (_n == 0 || p->error_indicator) {
@@ -19626,14 +22955,14 @@ _loop1_60_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop1_60_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop1_76_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _loop1_61: param_no_default
+// _loop1_77: param_no_default
 static asdl_seq *
-_loop1_61_rule(Parser *p)
+_loop1_77_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -19657,7 +22986,7 @@ _loop1_61_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop1_61[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "param_no_default"));
+        D(fprintf(stderr, "%*c> _loop1_77[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "param_no_default"));
         arg_ty param_no_default_var;
         while (
             (param_no_default_var = param_no_default_rule(p))  // param_no_default
@@ -19679,7 +23008,7 @@ _loop1_61_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop1_61[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop1_77[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "param_no_default"));
     }
     if (_n == 0 || p->error_indicator) {
@@ -19697,14 +23026,14 @@ _loop1_61_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop1_61_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop1_77_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _loop0_62: param_no_default
+// _loop0_78: param_no_default
 static asdl_seq *
-_loop0_62_rule(Parser *p)
+_loop0_78_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -19728,7 +23057,7 @@ _loop0_62_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop0_62[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "param_no_default"));
+        D(fprintf(stderr, "%*c> _loop0_78[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "param_no_default"));
         arg_ty param_no_default_var;
         while (
             (param_no_default_var = param_no_default_rule(p))  // param_no_default
@@ -19750,7 +23079,7 @@ _loop0_62_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop0_62[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop0_78[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "param_no_default"));
     }
     asdl_seq *_seq = (asdl_seq*)_Py_asdl_generic_seq_new(_n, p->arena);
@@ -19763,14 +23092,14 @@ _loop0_62_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop0_62_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop0_78_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _loop1_63: param_with_default
+// _loop1_79: param_with_default
 static asdl_seq *
-_loop1_63_rule(Parser *p)
+_loop1_79_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -19794,7 +23123,7 @@ _loop1_63_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop1_63[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "param_with_default"));
+        D(fprintf(stderr, "%*c> _loop1_79[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "param_with_default"));
         NameDefaultPair* param_with_default_var;
         while (
             (param_with_default_var = param_with_default_rule(p))  // param_with_default
@@ -19816,7 +23145,7 @@ _loop1_63_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop1_63[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop1_79[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "param_with_default"));
     }
     if (_n == 0 || p->error_indicator) {
@@ -19834,14 +23163,14 @@ _loop1_63_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop1_63_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop1_79_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _loop0_64: param_no_default
+// _loop0_80: param_no_default
 static asdl_seq *
-_loop0_64_rule(Parser *p)
+_loop0_80_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -19865,7 +23194,7 @@ _loop0_64_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop0_64[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "param_no_default"));
+        D(fprintf(stderr, "%*c> _loop0_80[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "param_no_default"));
         arg_ty param_no_default_var;
         while (
             (param_no_default_var = param_no_default_rule(p))  // param_no_default
@@ -19887,7 +23216,7 @@ _loop0_64_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop0_64[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop0_80[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "param_no_default"));
     }
     asdl_seq *_seq = (asdl_seq*)_Py_asdl_generic_seq_new(_n, p->arena);
@@ -19900,14 +23229,14 @@ _loop0_64_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop0_64_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop0_80_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _loop1_65: param_with_default
+// _loop1_81: param_with_default
 static asdl_seq *
-_loop1_65_rule(Parser *p)
+_loop1_81_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -19931,7 +23260,7 @@ _loop1_65_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop1_65[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "param_with_default"));
+        D(fprintf(stderr, "%*c> _loop1_81[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "param_with_default"));
         NameDefaultPair* param_with_default_var;
         while (
             (param_with_default_var = param_with_default_rule(p))  // param_with_default
@@ -19953,7 +23282,7 @@ _loop1_65_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop1_65[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop1_81[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "param_with_default"));
     }
     if (_n == 0 || p->error_indicator) {
@@ -19971,14 +23300,14 @@ _loop1_65_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop1_65_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop1_81_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _loop0_66: param_maybe_default
+// _loop0_82: param_maybe_default
 static asdl_seq *
-_loop0_66_rule(Parser *p)
+_loop0_82_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -20002,7 +23331,7 @@ _loop0_66_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop0_66[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "param_maybe_default"));
+        D(fprintf(stderr, "%*c> _loop0_82[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "param_maybe_default"));
         NameDefaultPair* param_maybe_default_var;
         while (
             (param_maybe_default_var = param_maybe_default_rule(p))  // param_maybe_default
@@ -20024,7 +23353,7 @@ _loop0_66_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop0_66[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop0_82[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "param_maybe_default"));
     }
     asdl_seq *_seq = (asdl_seq*)_Py_asdl_generic_seq_new(_n, p->arena);
@@ -20037,14 +23366,14 @@ _loop0_66_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop0_66_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop0_82_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _loop1_67: param_maybe_default
+// _loop1_83: param_maybe_default
 static asdl_seq *
-_loop1_67_rule(Parser *p)
+_loop1_83_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -20068,7 +23397,7 @@ _loop1_67_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop1_67[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "param_maybe_default"));
+        D(fprintf(stderr, "%*c> _loop1_83[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "param_maybe_default"));
         NameDefaultPair* param_maybe_default_var;
         while (
             (param_maybe_default_var = param_maybe_default_rule(p))  // param_maybe_default
@@ -20090,7 +23419,7 @@ _loop1_67_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop1_67[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop1_83[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "param_maybe_default"));
     }
     if (_n == 0 || p->error_indicator) {
@@ -20108,14 +23437,14 @@ _loop1_67_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop1_67_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop1_83_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _loop1_68: ('@' named_expression NEWLINE)
+// _loop1_84: ('@' named_expression NEWLINE)
 static asdl_seq *
-_loop1_68_rule(Parser *p)
+_loop1_84_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -20139,13 +23468,13 @@ _loop1_68_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop1_68[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "('@' named_expression NEWLINE)"));
-        void *_tmp_149_var;
+        D(fprintf(stderr, "%*c> _loop1_84[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "('@' named_expression NEWLINE)"));
+        void *_tmp_165_var;
         while (
-            (_tmp_149_var = _tmp_149_rule(p))  // '@' named_expression NEWLINE
+            (_tmp_165_var = _tmp_165_rule(p))  // '@' named_expression NEWLINE
         )
         {
-            _res = _tmp_149_var;
+            _res = _tmp_165_var;
             if (_n == _children_capacity) {
                 _children_capacity *= 2;
                 void **_new_children = PyMem_Realloc(_children, _children_capacity*sizeof(void *));
@@ -20161,7 +23490,7 @@ _loop1_68_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop1_68[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop1_84[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "('@' named_expression NEWLINE)"));
     }
     if (_n == 0 || p->error_indicator) {
@@ -20179,14 +23508,14 @@ _loop1_68_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop1_68_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop1_84_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _tmp_69: '(' arguments? ')'
+// _tmp_85: '(' arguments? ')'
 static void *
-_tmp_69_rule(Parser *p)
+_tmp_85_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -20200,7 +23529,7 @@ _tmp_69_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_69[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'(' arguments? ')'"));
+        D(fprintf(stderr, "%*c> _tmp_85[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'(' arguments? ')'"));
         Token * _literal;
         Token * _literal_1;
         void *z;
@@ -20212,7 +23541,7 @@ _tmp_69_rule(Parser *p)
             (_literal_1 = _PyPegen_expect_token(p, 8))  // token=')'
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_69[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'(' arguments? ')'"));
+            D(fprintf(stderr, "%*c+ _tmp_85[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'(' arguments? ')'"));
             _res = z;
             if (_res == NULL && PyErr_Occurred()) {
                 p->error_indicator = 1;
@@ -20222,7 +23551,7 @@ _tmp_69_rule(Parser *p)
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_69[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_85[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'(' arguments? ')'"));
     }
     _res = NULL;
@@ -20231,9 +23560,9 @@ _tmp_69_rule(Parser *p)
     return _res;
 }
 
-// _loop1_70: (',' star_expression)
+// _loop1_86: (',' star_expression)
 static asdl_seq *
-_loop1_70_rule(Parser *p)
+_loop1_86_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -20257,13 +23586,13 @@ _loop1_70_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop1_70[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "(',' star_expression)"));
-        void *_tmp_150_var;
+        D(fprintf(stderr, "%*c> _loop1_86[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "(',' star_expression)"));
+        void *_tmp_166_var;
         while (
-            (_tmp_150_var = _tmp_150_rule(p))  // ',' star_expression
+            (_tmp_166_var = _tmp_166_rule(p))  // ',' star_expression
         )
         {
-            _res = _tmp_150_var;
+            _res = _tmp_166_var;
             if (_n == _children_capacity) {
                 _children_capacity *= 2;
                 void **_new_children = PyMem_Realloc(_children, _children_capacity*sizeof(void *));
@@ -20279,7 +23608,7 @@ _loop1_70_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop1_70[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop1_86[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "(',' star_expression)"));
     }
     if (_n == 0 || p->error_indicator) {
@@ -20297,14 +23626,14 @@ _loop1_70_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop1_70_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop1_86_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _loop0_72: ',' star_named_expression
+// _loop0_88: ',' star_named_expression
 static asdl_seq *
-_loop0_72_rule(Parser *p)
+_loop0_88_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -20328,7 +23657,7 @@ _loop0_72_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop0_72[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' star_named_expression"));
+        D(fprintf(stderr, "%*c> _loop0_88[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' star_named_expression"));
         Token * _literal;
         expr_ty elem;
         while (
@@ -20359,7 +23688,7 @@ _loop0_72_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop0_72[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop0_88[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "',' star_named_expression"));
     }
     asdl_seq *_seq = (asdl_seq*)_Py_asdl_generic_seq_new(_n, p->arena);
@@ -20372,14 +23701,14 @@ _loop0_72_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop0_72_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop0_88_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _gather_71: star_named_expression _loop0_72
+// _gather_87: star_named_expression _loop0_88
 static asdl_seq *
-_gather_71_rule(Parser *p)
+_gather_87_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -20388,27 +23717,27 @@ _gather_71_rule(Parser *p)
     }
     asdl_seq * _res = NULL;
     int _mark = p->mark;
-    { // star_named_expression _loop0_72
+    { // star_named_expression _loop0_88
         if (p->error_indicator) {
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _gather_71[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "star_named_expression _loop0_72"));
+        D(fprintf(stderr, "%*c> _gather_87[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "star_named_expression _loop0_88"));
         expr_ty elem;
         asdl_seq * seq;
         if (
             (elem = star_named_expression_rule(p))  // star_named_expression
             &&
-            (seq = _loop0_72_rule(p))  // _loop0_72
+            (seq = _loop0_88_rule(p))  // _loop0_88
         )
         {
-            D(fprintf(stderr, "%*c+ _gather_71[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "star_named_expression _loop0_72"));
+            D(fprintf(stderr, "%*c+ _gather_87[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "star_named_expression _loop0_88"));
             _res = _PyPegen_seq_insert_in_front(p, elem, seq);
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _gather_71[%d-%d]: %s failed!\n", p->level, ' ',
-                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "star_named_expression _loop0_72"));
+        D(fprintf(stderr, "%*c%s _gather_87[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "star_named_expression _loop0_88"));
     }
     _res = NULL;
   done:
@@ -20416,9 +23745,9 @@ _gather_71_rule(Parser *p)
     return _res;
 }
 
-// _loop1_73: (',' expression)
+// _loop1_89: (',' expression)
 static asdl_seq *
-_loop1_73_rule(Parser *p)
+_loop1_89_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -20442,13 +23771,13 @@ _loop1_73_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop1_73[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "(',' expression)"));
-        void *_tmp_151_var;
+        D(fprintf(stderr, "%*c> _loop1_89[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "(',' expression)"));
+        void *_tmp_167_var;
         while (
-            (_tmp_151_var = _tmp_151_rule(p))  // ',' expression
+            (_tmp_167_var = _tmp_167_rule(p))  // ',' expression
         )
         {
-            _res = _tmp_151_var;
+            _res = _tmp_167_var;
             if (_n == _children_capacity) {
                 _children_capacity *= 2;
                 void **_new_children = PyMem_Realloc(_children, _children_capacity*sizeof(void *));
@@ -20464,7 +23793,7 @@ _loop1_73_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop1_73[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop1_89[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "(',' expression)"));
     }
     if (_n == 0 || p->error_indicator) {
@@ -20482,14 +23811,14 @@ _loop1_73_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop1_73_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop1_89_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _loop0_74: lambda_param_no_default
+// _loop0_90: lambda_param_no_default
 static asdl_seq *
-_loop0_74_rule(Parser *p)
+_loop0_90_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -20513,7 +23842,7 @@ _loop0_74_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop0_74[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "lambda_param_no_default"));
+        D(fprintf(stderr, "%*c> _loop0_90[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "lambda_param_no_default"));
         arg_ty lambda_param_no_default_var;
         while (
             (lambda_param_no_default_var = lambda_param_no_default_rule(p))  // lambda_param_no_default
@@ -20535,7 +23864,7 @@ _loop0_74_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop0_74[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop0_90[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "lambda_param_no_default"));
     }
     asdl_seq *_seq = (asdl_seq*)_Py_asdl_generic_seq_new(_n, p->arena);
@@ -20548,14 +23877,14 @@ _loop0_74_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop0_74_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop0_90_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _loop0_75: lambda_param_with_default
+// _loop0_91: lambda_param_with_default
 static asdl_seq *
-_loop0_75_rule(Parser *p)
+_loop0_91_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -20579,7 +23908,7 @@ _loop0_75_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop0_75[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "lambda_param_with_default"));
+        D(fprintf(stderr, "%*c> _loop0_91[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "lambda_param_with_default"));
         NameDefaultPair* lambda_param_with_default_var;
         while (
             (lambda_param_with_default_var = lambda_param_with_default_rule(p))  // lambda_param_with_default
@@ -20601,7 +23930,7 @@ _loop0_75_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop0_75[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop0_91[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "lambda_param_with_default"));
     }
     asdl_seq *_seq = (asdl_seq*)_Py_asdl_generic_seq_new(_n, p->arena);
@@ -20614,14 +23943,14 @@ _loop0_75_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop0_75_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop0_91_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _loop0_76: lambda_param_with_default
+// _loop0_92: lambda_param_with_default
 static asdl_seq *
-_loop0_76_rule(Parser *p)
+_loop0_92_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -20645,7 +23974,7 @@ _loop0_76_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop0_76[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "lambda_param_with_default"));
+        D(fprintf(stderr, "%*c> _loop0_92[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "lambda_param_with_default"));
         NameDefaultPair* lambda_param_with_default_var;
         while (
             (lambda_param_with_default_var = lambda_param_with_default_rule(p))  // lambda_param_with_default
@@ -20667,7 +23996,7 @@ _loop0_76_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop0_76[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop0_92[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "lambda_param_with_default"));
     }
     asdl_seq *_seq = (asdl_seq*)_Py_asdl_generic_seq_new(_n, p->arena);
@@ -20680,14 +24009,14 @@ _loop0_76_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop0_76_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop0_92_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _loop1_77: lambda_param_no_default
+// _loop1_93: lambda_param_no_default
 static asdl_seq *
-_loop1_77_rule(Parser *p)
+_loop1_93_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -20711,7 +24040,7 @@ _loop1_77_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop1_77[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "lambda_param_no_default"));
+        D(fprintf(stderr, "%*c> _loop1_93[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "lambda_param_no_default"));
         arg_ty lambda_param_no_default_var;
         while (
             (lambda_param_no_default_var = lambda_param_no_default_rule(p))  // lambda_param_no_default
@@ -20733,7 +24062,7 @@ _loop1_77_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop1_77[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop1_93[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "lambda_param_no_default"));
     }
     if (_n == 0 || p->error_indicator) {
@@ -20751,14 +24080,14 @@ _loop1_77_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop1_77_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop1_93_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _loop0_78: lambda_param_with_default
+// _loop0_94: lambda_param_with_default
 static asdl_seq *
-_loop0_78_rule(Parser *p)
+_loop0_94_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -20782,7 +24111,7 @@ _loop0_78_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop0_78[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "lambda_param_with_default"));
+        D(fprintf(stderr, "%*c> _loop0_94[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "lambda_param_with_default"));
         NameDefaultPair* lambda_param_with_default_var;
         while (
             (lambda_param_with_default_var = lambda_param_with_default_rule(p))  // lambda_param_with_default
@@ -20804,7 +24133,7 @@ _loop0_78_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop0_78[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop0_94[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "lambda_param_with_default"));
     }
     asdl_seq *_seq = (asdl_seq*)_Py_asdl_generic_seq_new(_n, p->arena);
@@ -20817,14 +24146,14 @@ _loop0_78_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop0_78_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop0_94_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _loop1_79: lambda_param_with_default
+// _loop1_95: lambda_param_with_default
 static asdl_seq *
-_loop1_79_rule(Parser *p)
+_loop1_95_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -20848,7 +24177,7 @@ _loop1_79_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop1_79[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "lambda_param_with_default"));
+        D(fprintf(stderr, "%*c> _loop1_95[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "lambda_param_with_default"));
         NameDefaultPair* lambda_param_with_default_var;
         while (
             (lambda_param_with_default_var = lambda_param_with_default_rule(p))  // lambda_param_with_default
@@ -20870,7 +24199,7 @@ _loop1_79_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop1_79[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop1_95[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "lambda_param_with_default"));
     }
     if (_n == 0 || p->error_indicator) {
@@ -20888,14 +24217,14 @@ _loop1_79_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop1_79_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop1_95_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _loop1_80: lambda_param_no_default
+// _loop1_96: lambda_param_no_default
 static asdl_seq *
-_loop1_80_rule(Parser *p)
+_loop1_96_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -20919,7 +24248,7 @@ _loop1_80_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop1_80[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "lambda_param_no_default"));
+        D(fprintf(stderr, "%*c> _loop1_96[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "lambda_param_no_default"));
         arg_ty lambda_param_no_default_var;
         while (
             (lambda_param_no_default_var = lambda_param_no_default_rule(p))  // lambda_param_no_default
@@ -20941,7 +24270,7 @@ _loop1_80_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop1_80[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop1_96[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "lambda_param_no_default"));
     }
     if (_n == 0 || p->error_indicator) {
@@ -20959,14 +24288,14 @@ _loop1_80_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop1_80_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop1_96_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _loop1_81: lambda_param_no_default
+// _loop1_97: lambda_param_no_default
 static asdl_seq *
-_loop1_81_rule(Parser *p)
+_loop1_97_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -20990,7 +24319,7 @@ _loop1_81_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop1_81[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "lambda_param_no_default"));
+        D(fprintf(stderr, "%*c> _loop1_97[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "lambda_param_no_default"));
         arg_ty lambda_param_no_default_var;
         while (
             (lambda_param_no_default_var = lambda_param_no_default_rule(p))  // lambda_param_no_default
@@ -21012,7 +24341,7 @@ _loop1_81_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop1_81[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop1_97[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "lambda_param_no_default"));
     }
     if (_n == 0 || p->error_indicator) {
@@ -21030,14 +24359,14 @@ _loop1_81_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop1_81_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop1_97_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _loop0_82: lambda_param_no_default
+// _loop0_98: lambda_param_no_default
 static asdl_seq *
-_loop0_82_rule(Parser *p)
+_loop0_98_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -21061,7 +24390,7 @@ _loop0_82_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop0_82[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "lambda_param_no_default"));
+        D(fprintf(stderr, "%*c> _loop0_98[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "lambda_param_no_default"));
         arg_ty lambda_param_no_default_var;
         while (
             (lambda_param_no_default_var = lambda_param_no_default_rule(p))  // lambda_param_no_default
@@ -21083,7 +24412,7 @@ _loop0_82_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop0_82[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop0_98[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "lambda_param_no_default"));
     }
     asdl_seq *_seq = (asdl_seq*)_Py_asdl_generic_seq_new(_n, p->arena);
@@ -21096,14 +24425,14 @@ _loop0_82_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop0_82_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop0_98_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _loop1_83: lambda_param_with_default
+// _loop1_99: lambda_param_with_default
 static asdl_seq *
-_loop1_83_rule(Parser *p)
+_loop1_99_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -21127,7 +24456,7 @@ _loop1_83_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop1_83[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "lambda_param_with_default"));
+        D(fprintf(stderr, "%*c> _loop1_99[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "lambda_param_with_default"));
         NameDefaultPair* lambda_param_with_default_var;
         while (
             (lambda_param_with_default_var = lambda_param_with_default_rule(p))  // lambda_param_with_default
@@ -21149,7 +24478,7 @@ _loop1_83_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop1_83[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop1_99[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "lambda_param_with_default"));
     }
     if (_n == 0 || p->error_indicator) {
@@ -21167,14 +24496,14 @@ _loop1_83_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop1_83_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop1_99_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _loop0_84: lambda_param_no_default
+// _loop0_100: lambda_param_no_default
 static asdl_seq *
-_loop0_84_rule(Parser *p)
+_loop0_100_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -21198,7 +24527,7 @@ _loop0_84_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop0_84[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "lambda_param_no_default"));
+        D(fprintf(stderr, "%*c> _loop0_100[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "lambda_param_no_default"));
         arg_ty lambda_param_no_default_var;
         while (
             (lambda_param_no_default_var = lambda_param_no_default_rule(p))  // lambda_param_no_default
@@ -21220,7 +24549,7 @@ _loop0_84_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop0_84[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop0_100[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "lambda_param_no_default"));
     }
     asdl_seq *_seq = (asdl_seq*)_Py_asdl_generic_seq_new(_n, p->arena);
@@ -21233,14 +24562,14 @@ _loop0_84_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop0_84_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop0_100_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _loop1_85: lambda_param_with_default
+// _loop1_101: lambda_param_with_default
 static asdl_seq *
-_loop1_85_rule(Parser *p)
+_loop1_101_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -21264,7 +24593,7 @@ _loop1_85_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop1_85[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "lambda_param_with_default"));
+        D(fprintf(stderr, "%*c> _loop1_101[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "lambda_param_with_default"));
         NameDefaultPair* lambda_param_with_default_var;
         while (
             (lambda_param_with_default_var = lambda_param_with_default_rule(p))  // lambda_param_with_default
@@ -21286,7 +24615,7 @@ _loop1_85_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop1_85[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop1_101[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "lambda_param_with_default"));
     }
     if (_n == 0 || p->error_indicator) {
@@ -21304,14 +24633,14 @@ _loop1_85_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop1_85_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop1_101_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _loop0_86: lambda_param_maybe_default
+// _loop0_102: lambda_param_maybe_default
 static asdl_seq *
-_loop0_86_rule(Parser *p)
+_loop0_102_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -21335,7 +24664,7 @@ _loop0_86_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop0_86[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "lambda_param_maybe_default"));
+        D(fprintf(stderr, "%*c> _loop0_102[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "lambda_param_maybe_default"));
         NameDefaultPair* lambda_param_maybe_default_var;
         while (
             (lambda_param_maybe_default_var = lambda_param_maybe_default_rule(p))  // lambda_param_maybe_default
@@ -21357,7 +24686,7 @@ _loop0_86_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop0_86[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop0_102[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "lambda_param_maybe_default"));
     }
     asdl_seq *_seq = (asdl_seq*)_Py_asdl_generic_seq_new(_n, p->arena);
@@ -21370,14 +24699,14 @@ _loop0_86_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop0_86_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop0_102_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _loop1_87: lambda_param_maybe_default
+// _loop1_103: lambda_param_maybe_default
 static asdl_seq *
-_loop1_87_rule(Parser *p)
+_loop1_103_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -21401,7 +24730,7 @@ _loop1_87_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop1_87[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "lambda_param_maybe_default"));
+        D(fprintf(stderr, "%*c> _loop1_103[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "lambda_param_maybe_default"));
         NameDefaultPair* lambda_param_maybe_default_var;
         while (
             (lambda_param_maybe_default_var = lambda_param_maybe_default_rule(p))  // lambda_param_maybe_default
@@ -21423,7 +24752,7 @@ _loop1_87_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop1_87[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop1_103[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "lambda_param_maybe_default"));
     }
     if (_n == 0 || p->error_indicator) {
@@ -21441,14 +24770,14 @@ _loop1_87_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop1_87_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop1_103_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _loop1_88: ('or' conjunction)
+// _loop1_104: ('or' conjunction)
 static asdl_seq *
-_loop1_88_rule(Parser *p)
+_loop1_104_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -21472,13 +24801,13 @@ _loop1_88_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop1_88[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "('or' conjunction)"));
-        void *_tmp_152_var;
+        D(fprintf(stderr, "%*c> _loop1_104[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "('or' conjunction)"));
+        void *_tmp_168_var;
         while (
-            (_tmp_152_var = _tmp_152_rule(p))  // 'or' conjunction
+            (_tmp_168_var = _tmp_168_rule(p))  // 'or' conjunction
         )
         {
-            _res = _tmp_152_var;
+            _res = _tmp_168_var;
             if (_n == _children_capacity) {
                 _children_capacity *= 2;
                 void **_new_children = PyMem_Realloc(_children, _children_capacity*sizeof(void *));
@@ -21494,7 +24823,7 @@ _loop1_88_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop1_88[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop1_104[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "('or' conjunction)"));
     }
     if (_n == 0 || p->error_indicator) {
@@ -21512,14 +24841,14 @@ _loop1_88_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop1_88_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop1_104_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _loop1_89: ('and' inversion)
+// _loop1_105: ('and' inversion)
 static asdl_seq *
-_loop1_89_rule(Parser *p)
+_loop1_105_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -21543,13 +24872,13 @@ _loop1_89_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop1_89[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "('and' inversion)"));
-        void *_tmp_153_var;
+        D(fprintf(stderr, "%*c> _loop1_105[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "('and' inversion)"));
+        void *_tmp_169_var;
         while (
-            (_tmp_153_var = _tmp_153_rule(p))  // 'and' inversion
+            (_tmp_169_var = _tmp_169_rule(p))  // 'and' inversion
         )
         {
-            _res = _tmp_153_var;
+            _res = _tmp_169_var;
             if (_n == _children_capacity) {
                 _children_capacity *= 2;
                 void **_new_children = PyMem_Realloc(_children, _children_capacity*sizeof(void *));
@@ -21565,7 +24894,7 @@ _loop1_89_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop1_89[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop1_105[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "('and' inversion)"));
     }
     if (_n == 0 || p->error_indicator) {
@@ -21583,14 +24912,14 @@ _loop1_89_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop1_89_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop1_105_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _loop1_90: compare_op_bitwise_or_pair
+// _loop1_106: compare_op_bitwise_or_pair
 static asdl_seq *
-_loop1_90_rule(Parser *p)
+_loop1_106_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -21614,7 +24943,7 @@ _loop1_90_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop1_90[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "compare_op_bitwise_or_pair"));
+        D(fprintf(stderr, "%*c> _loop1_106[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "compare_op_bitwise_or_pair"));
         CmpopExprPair* compare_op_bitwise_or_pair_var;
         while (
             (compare_op_bitwise_or_pair_var = compare_op_bitwise_or_pair_rule(p))  // compare_op_bitwise_or_pair
@@ -21636,7 +24965,7 @@ _loop1_90_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop1_90[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop1_106[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "compare_op_bitwise_or_pair"));
     }
     if (_n == 0 || p->error_indicator) {
@@ -21654,14 +24983,14 @@ _loop1_90_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop1_90_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop1_106_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _tmp_91: '!='
+// _tmp_107: '!='
 static void *
-_tmp_91_rule(Parser *p)
+_tmp_107_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -21675,13 +25004,13 @@ _tmp_91_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_91[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'!='"));
+        D(fprintf(stderr, "%*c> _tmp_107[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'!='"));
         Token * tok;
         if (
             (tok = _PyPegen_expect_token(p, 28))  // token='!='
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_91[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'!='"));
+            D(fprintf(stderr, "%*c+ _tmp_107[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'!='"));
             _res = _PyPegen_check_barry_as_flufl ( p , tok ) ? NULL : tok;
             if (_res == NULL && PyErr_Occurred()) {
                 p->error_indicator = 1;
@@ -21691,7 +25020,7 @@ _tmp_91_rule(Parser *p)
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_91[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_107[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'!='"));
     }
     _res = NULL;
@@ -21700,9 +25029,9 @@ _tmp_91_rule(Parser *p)
     return _res;
 }
 
-// _loop0_93: ',' slice
+// _loop0_109: ',' slice
 static asdl_seq *
-_loop0_93_rule(Parser *p)
+_loop0_109_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -21726,7 +25055,7 @@ _loop0_93_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop0_93[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' slice"));
+        D(fprintf(stderr, "%*c> _loop0_109[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' slice"));
         Token * _literal;
         expr_ty elem;
         while (
@@ -21757,7 +25086,7 @@ _loop0_93_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop0_93[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop0_109[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "',' slice"));
     }
     asdl_seq *_seq = (asdl_seq*)_Py_asdl_generic_seq_new(_n, p->arena);
@@ -21770,14 +25099,14 @@ _loop0_93_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop0_93_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop0_109_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _gather_92: slice _loop0_93
+// _gather_108: slice _loop0_109
 static asdl_seq *
-_gather_92_rule(Parser *p)
+_gather_108_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -21786,27 +25115,27 @@ _gather_92_rule(Parser *p)
     }
     asdl_seq * _res = NULL;
     int _mark = p->mark;
-    { // slice _loop0_93
+    { // slice _loop0_109
         if (p->error_indicator) {
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _gather_92[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "slice _loop0_93"));
+        D(fprintf(stderr, "%*c> _gather_108[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "slice _loop0_109"));
         expr_ty elem;
         asdl_seq * seq;
         if (
             (elem = slice_rule(p))  // slice
             &&
-            (seq = _loop0_93_rule(p))  // _loop0_93
+            (seq = _loop0_109_rule(p))  // _loop0_109
         )
         {
-            D(fprintf(stderr, "%*c+ _gather_92[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "slice _loop0_93"));
+            D(fprintf(stderr, "%*c+ _gather_108[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "slice _loop0_109"));
             _res = _PyPegen_seq_insert_in_front(p, elem, seq);
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _gather_92[%d-%d]: %s failed!\n", p->level, ' ',
-                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "slice _loop0_93"));
+        D(fprintf(stderr, "%*c%s _gather_108[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "slice _loop0_109"));
     }
     _res = NULL;
   done:
@@ -21814,9 +25143,9 @@ _gather_92_rule(Parser *p)
     return _res;
 }
 
-// _tmp_94: ':' expression?
+// _tmp_110: ':' expression?
 static void *
-_tmp_94_rule(Parser *p)
+_tmp_110_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -21830,7 +25159,7 @@ _tmp_94_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_94[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "':' expression?"));
+        D(fprintf(stderr, "%*c> _tmp_110[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "':' expression?"));
         Token * _literal;
         void *d;
         if (
@@ -21839,7 +25168,7 @@ _tmp_94_rule(Parser *p)
             (d = expression_rule(p), 1)  // expression?
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_94[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "':' expression?"));
+            D(fprintf(stderr, "%*c+ _tmp_110[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "':' expression?"));
             _res = d;
             if (_res == NULL && PyErr_Occurred()) {
                 p->error_indicator = 1;
@@ -21849,7 +25178,7 @@ _tmp_94_rule(Parser *p)
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_94[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_110[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "':' expression?"));
     }
     _res = NULL;
@@ -21858,9 +25187,9 @@ _tmp_94_rule(Parser *p)
     return _res;
 }
 
-// _tmp_95: tuple | group | genexp
+// _tmp_111: tuple | group | genexp
 static void *
-_tmp_95_rule(Parser *p)
+_tmp_111_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -21874,18 +25203,18 @@ _tmp_95_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_95[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "tuple"));
+        D(fprintf(stderr, "%*c> _tmp_111[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "tuple"));
         expr_ty tuple_var;
         if (
             (tuple_var = tuple_rule(p))  // tuple
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_95[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "tuple"));
+            D(fprintf(stderr, "%*c+ _tmp_111[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "tuple"));
             _res = tuple_var;
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_95[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_111[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "tuple"));
     }
     { // group
@@ -21893,18 +25222,18 @@ _tmp_95_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_95[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "group"));
+        D(fprintf(stderr, "%*c> _tmp_111[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "group"));
         expr_ty group_var;
         if (
             (group_var = group_rule(p))  // group
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_95[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "group"));
+            D(fprintf(stderr, "%*c+ _tmp_111[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "group"));
             _res = group_var;
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_95[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_111[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "group"));
     }
     { // genexp
@@ -21912,18 +25241,18 @@ _tmp_95_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_95[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "genexp"));
+        D(fprintf(stderr, "%*c> _tmp_111[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "genexp"));
         expr_ty genexp_var;
         if (
             (genexp_var = genexp_rule(p))  // genexp
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_95[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "genexp"));
+            D(fprintf(stderr, "%*c+ _tmp_111[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "genexp"));
             _res = genexp_var;
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_95[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_111[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "genexp"));
     }
     _res = NULL;
@@ -21932,9 +25261,9 @@ _tmp_95_rule(Parser *p)
     return _res;
 }
 
-// _tmp_96: list | listcomp
+// _tmp_112: list | listcomp
 static void *
-_tmp_96_rule(Parser *p)
+_tmp_112_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -21948,18 +25277,18 @@ _tmp_96_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_96[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "list"));
+        D(fprintf(stderr, "%*c> _tmp_112[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "list"));
         expr_ty list_var;
         if (
             (list_var = list_rule(p))  // list
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_96[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "list"));
+            D(fprintf(stderr, "%*c+ _tmp_112[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "list"));
             _res = list_var;
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_96[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_112[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "list"));
     }
     { // listcomp
@@ -21967,18 +25296,18 @@ _tmp_96_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_96[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "listcomp"));
+        D(fprintf(stderr, "%*c> _tmp_112[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "listcomp"));
         expr_ty listcomp_var;
         if (
             (listcomp_var = listcomp_rule(p))  // listcomp
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_96[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "listcomp"));
+            D(fprintf(stderr, "%*c+ _tmp_112[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "listcomp"));
             _res = listcomp_var;
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_96[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_112[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "listcomp"));
     }
     _res = NULL;
@@ -21987,9 +25316,9 @@ _tmp_96_rule(Parser *p)
     return _res;
 }
 
-// _tmp_97: dict | set | dictcomp | setcomp
+// _tmp_113: dict | set | dictcomp | setcomp
 static void *
-_tmp_97_rule(Parser *p)
+_tmp_113_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -22003,18 +25332,18 @@ _tmp_97_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_97[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "dict"));
+        D(fprintf(stderr, "%*c> _tmp_113[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "dict"));
         expr_ty dict_var;
         if (
             (dict_var = dict_rule(p))  // dict
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_97[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "dict"));
+            D(fprintf(stderr, "%*c+ _tmp_113[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "dict"));
             _res = dict_var;
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_97[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_113[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "dict"));
     }
     { // set
@@ -22022,18 +25351,18 @@ _tmp_97_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_97[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "set"));
+        D(fprintf(stderr, "%*c> _tmp_113[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "set"));
         expr_ty set_var;
         if (
             (set_var = set_rule(p))  // set
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_97[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "set"));
+            D(fprintf(stderr, "%*c+ _tmp_113[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "set"));
             _res = set_var;
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_97[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_113[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "set"));
     }
     { // dictcomp
@@ -22041,18 +25370,18 @@ _tmp_97_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_97[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "dictcomp"));
+        D(fprintf(stderr, "%*c> _tmp_113[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "dictcomp"));
         expr_ty dictcomp_var;
         if (
             (dictcomp_var = dictcomp_rule(p))  // dictcomp
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_97[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "dictcomp"));
+            D(fprintf(stderr, "%*c+ _tmp_113[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "dictcomp"));
             _res = dictcomp_var;
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_97[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_113[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "dictcomp"));
     }
     { // setcomp
@@ -22060,18 +25389,18 @@ _tmp_97_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_97[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "setcomp"));
+        D(fprintf(stderr, "%*c> _tmp_113[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "setcomp"));
         expr_ty setcomp_var;
         if (
             (setcomp_var = setcomp_rule(p))  // setcomp
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_97[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "setcomp"));
+            D(fprintf(stderr, "%*c+ _tmp_113[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "setcomp"));
             _res = setcomp_var;
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_97[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_113[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "setcomp"));
     }
     _res = NULL;
@@ -22080,9 +25409,9 @@ _tmp_97_rule(Parser *p)
     return _res;
 }
 
-// _loop1_98: STRING
+// _loop1_114: STRING
 static asdl_seq *
-_loop1_98_rule(Parser *p)
+_loop1_114_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -22106,7 +25435,7 @@ _loop1_98_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop1_98[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "STRING"));
+        D(fprintf(stderr, "%*c> _loop1_114[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "STRING"));
         expr_ty string_var;
         while (
             (string_var = _PyPegen_string_token(p))  // STRING
@@ -22128,7 +25457,7 @@ _loop1_98_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop1_98[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop1_114[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "STRING"));
     }
     if (_n == 0 || p->error_indicator) {
@@ -22146,14 +25475,14 @@ _loop1_98_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop1_98_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop1_114_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _tmp_99: star_named_expression ',' star_named_expressions?
+// _tmp_115: star_named_expression ',' star_named_expressions?
 static void *
-_tmp_99_rule(Parser *p)
+_tmp_115_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -22167,7 +25496,7 @@ _tmp_99_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_99[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "star_named_expression ',' star_named_expressions?"));
+        D(fprintf(stderr, "%*c> _tmp_115[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "star_named_expression ',' star_named_expressions?"));
         Token * _literal;
         expr_ty y;
         void *z;
@@ -22179,7 +25508,7 @@ _tmp_99_rule(Parser *p)
             (z = star_named_expressions_rule(p), 1)  // star_named_expressions?
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_99[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "star_named_expression ',' star_named_expressions?"));
+            D(fprintf(stderr, "%*c+ _tmp_115[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "star_named_expression ',' star_named_expressions?"));
             _res = _PyPegen_seq_insert_in_front ( p , y , z );
             if (_res == NULL && PyErr_Occurred()) {
                 p->error_indicator = 1;
@@ -22189,7 +25518,7 @@ _tmp_99_rule(Parser *p)
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_99[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_115[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "star_named_expression ',' star_named_expressions?"));
     }
     _res = NULL;
@@ -22198,9 +25527,9 @@ _tmp_99_rule(Parser *p)
     return _res;
 }
 
-// _tmp_100: yield_expr | named_expression
+// _tmp_116: yield_expr | named_expression
 static void *
-_tmp_100_rule(Parser *p)
+_tmp_116_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -22214,18 +25543,18 @@ _tmp_100_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_100[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "yield_expr"));
+        D(fprintf(stderr, "%*c> _tmp_116[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "yield_expr"));
         expr_ty yield_expr_var;
         if (
             (yield_expr_var = yield_expr_rule(p))  // yield_expr
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_100[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "yield_expr"));
+            D(fprintf(stderr, "%*c+ _tmp_116[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "yield_expr"));
             _res = yield_expr_var;
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_100[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_116[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "yield_expr"));
     }
     { // named_expression
@@ -22233,18 +25562,18 @@ _tmp_100_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_100[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "named_expression"));
+        D(fprintf(stderr, "%*c> _tmp_116[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "named_expression"));
         expr_ty named_expression_var;
         if (
             (named_expression_var = named_expression_rule(p))  // named_expression
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_100[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "named_expression"));
+            D(fprintf(stderr, "%*c+ _tmp_116[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "named_expression"));
             _res = named_expression_var;
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_100[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_116[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "named_expression"));
     }
     _res = NULL;
@@ -22253,9 +25582,9 @@ _tmp_100_rule(Parser *p)
     return _res;
 }
 
-// _loop0_102: ',' double_starred_kvpair
+// _loop0_118: ',' double_starred_kvpair
 static asdl_seq *
-_loop0_102_rule(Parser *p)
+_loop0_118_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -22279,7 +25608,7 @@ _loop0_102_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop0_102[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' double_starred_kvpair"));
+        D(fprintf(stderr, "%*c> _loop0_118[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' double_starred_kvpair"));
         Token * _literal;
         KeyValuePair* elem;
         while (
@@ -22310,7 +25639,7 @@ _loop0_102_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop0_102[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop0_118[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "',' double_starred_kvpair"));
     }
     asdl_seq *_seq = (asdl_seq*)_Py_asdl_generic_seq_new(_n, p->arena);
@@ -22323,14 +25652,14 @@ _loop0_102_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop0_102_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop0_118_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _gather_101: double_starred_kvpair _loop0_102
+// _gather_117: double_starred_kvpair _loop0_118
 static asdl_seq *
-_gather_101_rule(Parser *p)
+_gather_117_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -22339,27 +25668,27 @@ _gather_101_rule(Parser *p)
     }
     asdl_seq * _res = NULL;
     int _mark = p->mark;
-    { // double_starred_kvpair _loop0_102
+    { // double_starred_kvpair _loop0_118
         if (p->error_indicator) {
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _gather_101[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "double_starred_kvpair _loop0_102"));
+        D(fprintf(stderr, "%*c> _gather_117[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "double_starred_kvpair _loop0_118"));
         KeyValuePair* elem;
         asdl_seq * seq;
         if (
             (elem = double_starred_kvpair_rule(p))  // double_starred_kvpair
             &&
-            (seq = _loop0_102_rule(p))  // _loop0_102
+            (seq = _loop0_118_rule(p))  // _loop0_118
         )
         {
-            D(fprintf(stderr, "%*c+ _gather_101[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "double_starred_kvpair _loop0_102"));
+            D(fprintf(stderr, "%*c+ _gather_117[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "double_starred_kvpair _loop0_118"));
             _res = _PyPegen_seq_insert_in_front(p, elem, seq);
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _gather_101[%d-%d]: %s failed!\n", p->level, ' ',
-                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "double_starred_kvpair _loop0_102"));
+        D(fprintf(stderr, "%*c%s _gather_117[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "double_starred_kvpair _loop0_118"));
     }
     _res = NULL;
   done:
@@ -22367,9 +25696,9 @@ _gather_101_rule(Parser *p)
     return _res;
 }
 
-// _loop1_103: for_if_clause
+// _loop1_119: for_if_clause
 static asdl_seq *
-_loop1_103_rule(Parser *p)
+_loop1_119_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -22393,7 +25722,7 @@ _loop1_103_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop1_103[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "for_if_clause"));
+        D(fprintf(stderr, "%*c> _loop1_119[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "for_if_clause"));
         comprehension_ty for_if_clause_var;
         while (
             (for_if_clause_var = for_if_clause_rule(p))  // for_if_clause
@@ -22415,7 +25744,7 @@ _loop1_103_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop1_103[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop1_119[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "for_if_clause"));
     }
     if (_n == 0 || p->error_indicator) {
@@ -22433,14 +25762,14 @@ _loop1_103_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop1_103_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop1_119_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _loop0_104: ('if' disjunction)
+// _loop0_120: ('if' disjunction)
 static asdl_seq *
-_loop0_104_rule(Parser *p)
+_loop0_120_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -22464,13 +25793,13 @@ _loop0_104_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop0_104[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "('if' disjunction)"));
-        void *_tmp_154_var;
+        D(fprintf(stderr, "%*c> _loop0_120[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "('if' disjunction)"));
+        void *_tmp_170_var;
         while (
-            (_tmp_154_var = _tmp_154_rule(p))  // 'if' disjunction
+            (_tmp_170_var = _tmp_170_rule(p))  // 'if' disjunction
         )
         {
-            _res = _tmp_154_var;
+            _res = _tmp_170_var;
             if (_n == _children_capacity) {
                 _children_capacity *= 2;
                 void **_new_children = PyMem_Realloc(_children, _children_capacity*sizeof(void *));
@@ -22486,7 +25815,7 @@ _loop0_104_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop0_104[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop0_120[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "('if' disjunction)"));
     }
     asdl_seq *_seq = (asdl_seq*)_Py_asdl_generic_seq_new(_n, p->arena);
@@ -22499,14 +25828,14 @@ _loop0_104_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop0_104_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop0_120_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _loop0_105: ('if' disjunction)
+// _loop0_121: ('if' disjunction)
 static asdl_seq *
-_loop0_105_rule(Parser *p)
+_loop0_121_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -22530,13 +25859,13 @@ _loop0_105_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop0_105[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "('if' disjunction)"));
-        void *_tmp_155_var;
+        D(fprintf(stderr, "%*c> _loop0_121[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "('if' disjunction)"));
+        void *_tmp_171_var;
         while (
-            (_tmp_155_var = _tmp_155_rule(p))  // 'if' disjunction
+            (_tmp_171_var = _tmp_171_rule(p))  // 'if' disjunction
         )
         {
-            _res = _tmp_155_var;
+            _res = _tmp_171_var;
             if (_n == _children_capacity) {
                 _children_capacity *= 2;
                 void **_new_children = PyMem_Realloc(_children, _children_capacity*sizeof(void *));
@@ -22552,7 +25881,7 @@ _loop0_105_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop0_105[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop0_121[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "('if' disjunction)"));
     }
     asdl_seq *_seq = (asdl_seq*)_Py_asdl_generic_seq_new(_n, p->arena);
@@ -22565,14 +25894,14 @@ _loop0_105_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop0_105_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop0_121_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _loop0_107: ',' (starred_expression | named_expression !'=')
+// _loop0_123: ',' (starred_expression | named_expression !'=')
 static asdl_seq *
-_loop0_107_rule(Parser *p)
+_loop0_123_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -22596,13 +25925,13 @@ _loop0_107_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop0_107[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' (starred_expression | named_expression !'=')"));
+        D(fprintf(stderr, "%*c> _loop0_123[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' (starred_expression | named_expression !'=')"));
         Token * _literal;
         void *elem;
         while (
             (_literal = _PyPegen_expect_token(p, 12))  // token=','
             &&
-            (elem = _tmp_156_rule(p))  // starred_expression | named_expression !'='
+            (elem = _tmp_172_rule(p))  // starred_expression | named_expression !'='
         )
         {
             _res = elem;
@@ -22627,7 +25956,7 @@ _loop0_107_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop0_107[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop0_123[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "',' (starred_expression | named_expression !'=')"));
     }
     asdl_seq *_seq = (asdl_seq*)_Py_asdl_generic_seq_new(_n, p->arena);
@@ -22640,14 +25969,14 @@ _loop0_107_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop0_107_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop0_123_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _gather_106: (starred_expression | named_expression !'=') _loop0_107
+// _gather_122: (starred_expression | named_expression !'=') _loop0_123
 static asdl_seq *
-_gather_106_rule(Parser *p)
+_gather_122_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -22656,27 +25985,27 @@ _gather_106_rule(Parser *p)
     }
     asdl_seq * _res = NULL;
     int _mark = p->mark;
-    { // (starred_expression | named_expression !'=') _loop0_107
+    { // (starred_expression | named_expression !'=') _loop0_123
         if (p->error_indicator) {
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _gather_106[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "(starred_expression | named_expression !'=') _loop0_107"));
+        D(fprintf(stderr, "%*c> _gather_122[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "(starred_expression | named_expression !'=') _loop0_123"));
         void *elem;
         asdl_seq * seq;
         if (
-            (elem = _tmp_156_rule(p))  // starred_expression | named_expression !'='
+            (elem = _tmp_172_rule(p))  // starred_expression | named_expression !'='
             &&
-            (seq = _loop0_107_rule(p))  // _loop0_107
+            (seq = _loop0_123_rule(p))  // _loop0_123
         )
         {
-            D(fprintf(stderr, "%*c+ _gather_106[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "(starred_expression | named_expression !'=') _loop0_107"));
+            D(fprintf(stderr, "%*c+ _gather_122[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "(starred_expression | named_expression !'=') _loop0_123"));
             _res = _PyPegen_seq_insert_in_front(p, elem, seq);
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _gather_106[%d-%d]: %s failed!\n", p->level, ' ',
-                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "(starred_expression | named_expression !'=') _loop0_107"));
+        D(fprintf(stderr, "%*c%s _gather_122[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "(starred_expression | named_expression !'=') _loop0_123"));
     }
     _res = NULL;
   done:
@@ -22684,9 +26013,9 @@ _gather_106_rule(Parser *p)
     return _res;
 }
 
-// _tmp_108: ',' kwargs
+// _tmp_124: ',' kwargs
 static void *
-_tmp_108_rule(Parser *p)
+_tmp_124_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -22700,7 +26029,7 @@ _tmp_108_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_108[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' kwargs"));
+        D(fprintf(stderr, "%*c> _tmp_124[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' kwargs"));
         Token * _literal;
         asdl_seq* k;
         if (
@@ -22709,7 +26038,7 @@ _tmp_108_rule(Parser *p)
             (k = kwargs_rule(p))  // kwargs
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_108[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "',' kwargs"));
+            D(fprintf(stderr, "%*c+ _tmp_124[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "',' kwargs"));
             _res = k;
             if (_res == NULL && PyErr_Occurred()) {
                 p->error_indicator = 1;
@@ -22719,7 +26048,7 @@ _tmp_108_rule(Parser *p)
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_108[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_124[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "',' kwargs"));
     }
     _res = NULL;
@@ -22728,9 +26057,9 @@ _tmp_108_rule(Parser *p)
     return _res;
 }
 
-// _loop0_110: ',' kwarg_or_starred
+// _loop0_126: ',' kwarg_or_starred
 static asdl_seq *
-_loop0_110_rule(Parser *p)
+_loop0_126_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -22754,7 +26083,7 @@ _loop0_110_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop0_110[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' kwarg_or_starred"));
+        D(fprintf(stderr, "%*c> _loop0_126[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' kwarg_or_starred"));
         Token * _literal;
         KeywordOrStarred* elem;
         while (
@@ -22785,7 +26114,7 @@ _loop0_110_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop0_110[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop0_126[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "',' kwarg_or_starred"));
     }
     asdl_seq *_seq = (asdl_seq*)_Py_asdl_generic_seq_new(_n, p->arena);
@@ -22798,14 +26127,14 @@ _loop0_110_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop0_110_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop0_126_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _gather_109: kwarg_or_starred _loop0_110
+// _gather_125: kwarg_or_starred _loop0_126
 static asdl_seq *
-_gather_109_rule(Parser *p)
+_gather_125_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -22814,27 +26143,27 @@ _gather_109_rule(Parser *p)
     }
     asdl_seq * _res = NULL;
     int _mark = p->mark;
-    { // kwarg_or_starred _loop0_110
+    { // kwarg_or_starred _loop0_126
         if (p->error_indicator) {
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _gather_109[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "kwarg_or_starred _loop0_110"));
+        D(fprintf(stderr, "%*c> _gather_125[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "kwarg_or_starred _loop0_126"));
         KeywordOrStarred* elem;
         asdl_seq * seq;
         if (
             (elem = kwarg_or_starred_rule(p))  // kwarg_or_starred
             &&
-            (seq = _loop0_110_rule(p))  // _loop0_110
+            (seq = _loop0_126_rule(p))  // _loop0_126
         )
         {
-            D(fprintf(stderr, "%*c+ _gather_109[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "kwarg_or_starred _loop0_110"));
+            D(fprintf(stderr, "%*c+ _gather_125[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "kwarg_or_starred _loop0_126"));
             _res = _PyPegen_seq_insert_in_front(p, elem, seq);
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _gather_109[%d-%d]: %s failed!\n", p->level, ' ',
-                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "kwarg_or_starred _loop0_110"));
+        D(fprintf(stderr, "%*c%s _gather_125[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "kwarg_or_starred _loop0_126"));
     }
     _res = NULL;
   done:
@@ -22842,9 +26171,9 @@ _gather_109_rule(Parser *p)
     return _res;
 }
 
-// _loop0_112: ',' kwarg_or_double_starred
+// _loop0_128: ',' kwarg_or_double_starred
 static asdl_seq *
-_loop0_112_rule(Parser *p)
+_loop0_128_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -22868,7 +26197,7 @@ _loop0_112_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop0_112[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' kwarg_or_double_starred"));
+        D(fprintf(stderr, "%*c> _loop0_128[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' kwarg_or_double_starred"));
         Token * _literal;
         KeywordOrStarred* elem;
         while (
@@ -22899,7 +26228,7 @@ _loop0_112_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop0_112[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop0_128[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "',' kwarg_or_double_starred"));
     }
     asdl_seq *_seq = (asdl_seq*)_Py_asdl_generic_seq_new(_n, p->arena);
@@ -22912,14 +26241,14 @@ _loop0_112_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop0_112_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop0_128_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _gather_111: kwarg_or_double_starred _loop0_112
+// _gather_127: kwarg_or_double_starred _loop0_128
 static asdl_seq *
-_gather_111_rule(Parser *p)
+_gather_127_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -22928,27 +26257,27 @@ _gather_111_rule(Parser *p)
     }
     asdl_seq * _res = NULL;
     int _mark = p->mark;
-    { // kwarg_or_double_starred _loop0_112
+    { // kwarg_or_double_starred _loop0_128
         if (p->error_indicator) {
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _gather_111[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "kwarg_or_double_starred _loop0_112"));
+        D(fprintf(stderr, "%*c> _gather_127[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "kwarg_or_double_starred _loop0_128"));
         KeywordOrStarred* elem;
         asdl_seq * seq;
         if (
             (elem = kwarg_or_double_starred_rule(p))  // kwarg_or_double_starred
             &&
-            (seq = _loop0_112_rule(p))  // _loop0_112
+            (seq = _loop0_128_rule(p))  // _loop0_128
         )
         {
-            D(fprintf(stderr, "%*c+ _gather_111[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "kwarg_or_double_starred _loop0_112"));
+            D(fprintf(stderr, "%*c+ _gather_127[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "kwarg_or_double_starred _loop0_128"));
             _res = _PyPegen_seq_insert_in_front(p, elem, seq);
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _gather_111[%d-%d]: %s failed!\n", p->level, ' ',
-                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "kwarg_or_double_starred _loop0_112"));
+        D(fprintf(stderr, "%*c%s _gather_127[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "kwarg_or_double_starred _loop0_128"));
     }
     _res = NULL;
   done:
@@ -22956,9 +26285,9 @@ _gather_111_rule(Parser *p)
     return _res;
 }
 
-// _loop0_114: ',' kwarg_or_starred
+// _loop0_130: ',' kwarg_or_starred
 static asdl_seq *
-_loop0_114_rule(Parser *p)
+_loop0_130_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -22982,7 +26311,7 @@ _loop0_114_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop0_114[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' kwarg_or_starred"));
+        D(fprintf(stderr, "%*c> _loop0_130[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' kwarg_or_starred"));
         Token * _literal;
         KeywordOrStarred* elem;
         while (
@@ -23013,7 +26342,7 @@ _loop0_114_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop0_114[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop0_130[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "',' kwarg_or_starred"));
     }
     asdl_seq *_seq = (asdl_seq*)_Py_asdl_generic_seq_new(_n, p->arena);
@@ -23026,14 +26355,14 @@ _loop0_114_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop0_114_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop0_130_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _gather_113: kwarg_or_starred _loop0_114
+// _gather_129: kwarg_or_starred _loop0_130
 static asdl_seq *
-_gather_113_rule(Parser *p)
+_gather_129_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -23042,27 +26371,27 @@ _gather_113_rule(Parser *p)
     }
     asdl_seq * _res = NULL;
     int _mark = p->mark;
-    { // kwarg_or_starred _loop0_114
+    { // kwarg_or_starred _loop0_130
         if (p->error_indicator) {
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _gather_113[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "kwarg_or_starred _loop0_114"));
+        D(fprintf(stderr, "%*c> _gather_129[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "kwarg_or_starred _loop0_130"));
         KeywordOrStarred* elem;
         asdl_seq * seq;
         if (
             (elem = kwarg_or_starred_rule(p))  // kwarg_or_starred
             &&
-            (seq = _loop0_114_rule(p))  // _loop0_114
+            (seq = _loop0_130_rule(p))  // _loop0_130
         )
         {
-            D(fprintf(stderr, "%*c+ _gather_113[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "kwarg_or_starred _loop0_114"));
+            D(fprintf(stderr, "%*c+ _gather_129[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "kwarg_or_starred _loop0_130"));
             _res = _PyPegen_seq_insert_in_front(p, elem, seq);
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _gather_113[%d-%d]: %s failed!\n", p->level, ' ',
-                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "kwarg_or_starred _loop0_114"));
+        D(fprintf(stderr, "%*c%s _gather_129[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "kwarg_or_starred _loop0_130"));
     }
     _res = NULL;
   done:
@@ -23070,9 +26399,9 @@ _gather_113_rule(Parser *p)
     return _res;
 }
 
-// _loop0_116: ',' kwarg_or_double_starred
+// _loop0_132: ',' kwarg_or_double_starred
 static asdl_seq *
-_loop0_116_rule(Parser *p)
+_loop0_132_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -23096,7 +26425,7 @@ _loop0_116_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop0_116[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' kwarg_or_double_starred"));
+        D(fprintf(stderr, "%*c> _loop0_132[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' kwarg_or_double_starred"));
         Token * _literal;
         KeywordOrStarred* elem;
         while (
@@ -23127,7 +26456,7 @@ _loop0_116_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop0_116[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop0_132[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "',' kwarg_or_double_starred"));
     }
     asdl_seq *_seq = (asdl_seq*)_Py_asdl_generic_seq_new(_n, p->arena);
@@ -23140,14 +26469,14 @@ _loop0_116_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop0_116_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop0_132_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _gather_115: kwarg_or_double_starred _loop0_116
+// _gather_131: kwarg_or_double_starred _loop0_132
 static asdl_seq *
-_gather_115_rule(Parser *p)
+_gather_131_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -23156,27 +26485,27 @@ _gather_115_rule(Parser *p)
     }
     asdl_seq * _res = NULL;
     int _mark = p->mark;
-    { // kwarg_or_double_starred _loop0_116
+    { // kwarg_or_double_starred _loop0_132
         if (p->error_indicator) {
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _gather_115[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "kwarg_or_double_starred _loop0_116"));
+        D(fprintf(stderr, "%*c> _gather_131[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "kwarg_or_double_starred _loop0_132"));
         KeywordOrStarred* elem;
         asdl_seq * seq;
         if (
             (elem = kwarg_or_double_starred_rule(p))  // kwarg_or_double_starred
             &&
-            (seq = _loop0_116_rule(p))  // _loop0_116
+            (seq = _loop0_132_rule(p))  // _loop0_132
         )
         {
-            D(fprintf(stderr, "%*c+ _gather_115[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "kwarg_or_double_starred _loop0_116"));
+            D(fprintf(stderr, "%*c+ _gather_131[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "kwarg_or_double_starred _loop0_132"));
             _res = _PyPegen_seq_insert_in_front(p, elem, seq);
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _gather_115[%d-%d]: %s failed!\n", p->level, ' ',
-                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "kwarg_or_double_starred _loop0_116"));
+        D(fprintf(stderr, "%*c%s _gather_131[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "kwarg_or_double_starred _loop0_132"));
     }
     _res = NULL;
   done:
@@ -23184,9 +26513,9 @@ _gather_115_rule(Parser *p)
     return _res;
 }
 
-// _loop0_117: (',' star_target)
+// _loop0_133: (',' star_target)
 static asdl_seq *
-_loop0_117_rule(Parser *p)
+_loop0_133_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -23210,13 +26539,13 @@ _loop0_117_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop0_117[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "(',' star_target)"));
-        void *_tmp_157_var;
+        D(fprintf(stderr, "%*c> _loop0_133[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "(',' star_target)"));
+        void *_tmp_173_var;
         while (
-            (_tmp_157_var = _tmp_157_rule(p))  // ',' star_target
+            (_tmp_173_var = _tmp_173_rule(p))  // ',' star_target
         )
         {
-            _res = _tmp_157_var;
+            _res = _tmp_173_var;
             if (_n == _children_capacity) {
                 _children_capacity *= 2;
                 void **_new_children = PyMem_Realloc(_children, _children_capacity*sizeof(void *));
@@ -23232,7 +26561,7 @@ _loop0_117_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop0_117[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop0_133[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "(',' star_target)"));
     }
     asdl_seq *_seq = (asdl_seq*)_Py_asdl_generic_seq_new(_n, p->arena);
@@ -23245,14 +26574,14 @@ _loop0_117_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop0_117_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop0_133_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _loop0_119: ',' star_target
+// _loop0_135: ',' star_target
 static asdl_seq *
-_loop0_119_rule(Parser *p)
+_loop0_135_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -23276,7 +26605,7 @@ _loop0_119_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop0_119[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' star_target"));
+        D(fprintf(stderr, "%*c> _loop0_135[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' star_target"));
         Token * _literal;
         expr_ty elem;
         while (
@@ -23307,7 +26636,7 @@ _loop0_119_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop0_119[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop0_135[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "',' star_target"));
     }
     asdl_seq *_seq = (asdl_seq*)_Py_asdl_generic_seq_new(_n, p->arena);
@@ -23320,14 +26649,14 @@ _loop0_119_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop0_119_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop0_135_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _gather_118: star_target _loop0_119
+// _gather_134: star_target _loop0_135
 static asdl_seq *
-_gather_118_rule(Parser *p)
+_gather_134_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -23336,27 +26665,27 @@ _gather_118_rule(Parser *p)
     }
     asdl_seq * _res = NULL;
     int _mark = p->mark;
-    { // star_target _loop0_119
+    { // star_target _loop0_135
         if (p->error_indicator) {
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _gather_118[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "star_target _loop0_119"));
+        D(fprintf(stderr, "%*c> _gather_134[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "star_target _loop0_135"));
         expr_ty elem;
         asdl_seq * seq;
         if (
             (elem = star_target_rule(p))  // star_target
             &&
-            (seq = _loop0_119_rule(p))  // _loop0_119
+            (seq = _loop0_135_rule(p))  // _loop0_135
         )
         {
-            D(fprintf(stderr, "%*c+ _gather_118[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "star_target _loop0_119"));
+            D(fprintf(stderr, "%*c+ _gather_134[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "star_target _loop0_135"));
             _res = _PyPegen_seq_insert_in_front(p, elem, seq);
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _gather_118[%d-%d]: %s failed!\n", p->level, ' ',
-                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "star_target _loop0_119"));
+        D(fprintf(stderr, "%*c%s _gather_134[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "star_target _loop0_135"));
     }
     _res = NULL;
   done:
@@ -23364,9 +26693,9 @@ _gather_118_rule(Parser *p)
     return _res;
 }
 
-// _loop1_120: (',' star_target)
+// _loop1_136: (',' star_target)
 static asdl_seq *
-_loop1_120_rule(Parser *p)
+_loop1_136_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -23390,13 +26719,13 @@ _loop1_120_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop1_120[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "(',' star_target)"));
-        void *_tmp_158_var;
+        D(fprintf(stderr, "%*c> _loop1_136[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "(',' star_target)"));
+        void *_tmp_174_var;
         while (
-            (_tmp_158_var = _tmp_158_rule(p))  // ',' star_target
+            (_tmp_174_var = _tmp_174_rule(p))  // ',' star_target
         )
         {
-            _res = _tmp_158_var;
+            _res = _tmp_174_var;
             if (_n == _children_capacity) {
                 _children_capacity *= 2;
                 void **_new_children = PyMem_Realloc(_children, _children_capacity*sizeof(void *));
@@ -23412,7 +26741,7 @@ _loop1_120_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop1_120[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop1_136[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "(',' star_target)"));
     }
     if (_n == 0 || p->error_indicator) {
@@ -23430,14 +26759,14 @@ _loop1_120_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop1_120_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop1_136_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _tmp_121: !'*' star_target
+// _tmp_137: !'*' star_target
 static void *
-_tmp_121_rule(Parser *p)
+_tmp_137_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -23451,7 +26780,7 @@ _tmp_121_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_121[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "!'*' star_target"));
+        D(fprintf(stderr, "%*c> _tmp_137[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "!'*' star_target"));
         expr_ty star_target_var;
         if (
             _PyPegen_lookahead_with_int(0, _PyPegen_expect_token, p, 16)  // token='*'
@@ -23459,12 +26788,12 @@ _tmp_121_rule(Parser *p)
             (star_target_var = star_target_rule(p))  // star_target
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_121[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "!'*' star_target"));
+            D(fprintf(stderr, "%*c+ _tmp_137[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "!'*' star_target"));
             _res = star_target_var;
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_121[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_137[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "!'*' star_target"));
     }
     _res = NULL;
@@ -23473,9 +26802,9 @@ _tmp_121_rule(Parser *p)
     return _res;
 }
 
-// _loop0_123: ',' del_target
+// _loop0_139: ',' del_target
 static asdl_seq *
-_loop0_123_rule(Parser *p)
+_loop0_139_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -23499,7 +26828,7 @@ _loop0_123_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop0_123[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' del_target"));
+        D(fprintf(stderr, "%*c> _loop0_139[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' del_target"));
         Token * _literal;
         expr_ty elem;
         while (
@@ -23530,7 +26859,7 @@ _loop0_123_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop0_123[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop0_139[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "',' del_target"));
     }
     asdl_seq *_seq = (asdl_seq*)_Py_asdl_generic_seq_new(_n, p->arena);
@@ -23543,14 +26872,14 @@ _loop0_123_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop0_123_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop0_139_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _gather_122: del_target _loop0_123
+// _gather_138: del_target _loop0_139
 static asdl_seq *
-_gather_122_rule(Parser *p)
+_gather_138_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -23559,27 +26888,27 @@ _gather_122_rule(Parser *p)
     }
     asdl_seq * _res = NULL;
     int _mark = p->mark;
-    { // del_target _loop0_123
+    { // del_target _loop0_139
         if (p->error_indicator) {
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _gather_122[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "del_target _loop0_123"));
+        D(fprintf(stderr, "%*c> _gather_138[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "del_target _loop0_139"));
         expr_ty elem;
         asdl_seq * seq;
         if (
             (elem = del_target_rule(p))  // del_target
             &&
-            (seq = _loop0_123_rule(p))  // _loop0_123
+            (seq = _loop0_139_rule(p))  // _loop0_139
         )
         {
-            D(fprintf(stderr, "%*c+ _gather_122[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "del_target _loop0_123"));
+            D(fprintf(stderr, "%*c+ _gather_138[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "del_target _loop0_139"));
             _res = _PyPegen_seq_insert_in_front(p, elem, seq);
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _gather_122[%d-%d]: %s failed!\n", p->level, ' ',
-                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "del_target _loop0_123"));
+        D(fprintf(stderr, "%*c%s _gather_138[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "del_target _loop0_139"));
     }
     _res = NULL;
   done:
@@ -23587,9 +26916,9 @@ _gather_122_rule(Parser *p)
     return _res;
 }
 
-// _loop0_125: ',' target
+// _loop0_141: ',' target
 static asdl_seq *
-_loop0_125_rule(Parser *p)
+_loop0_141_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -23613,7 +26942,7 @@ _loop0_125_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop0_125[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' target"));
+        D(fprintf(stderr, "%*c> _loop0_141[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' target"));
         Token * _literal;
         expr_ty elem;
         while (
@@ -23644,7 +26973,7 @@ _loop0_125_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop0_125[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop0_141[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "',' target"));
     }
     asdl_seq *_seq = (asdl_seq*)_Py_asdl_generic_seq_new(_n, p->arena);
@@ -23657,14 +26986,14 @@ _loop0_125_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop0_125_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop0_141_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _gather_124: target _loop0_125
+// _gather_140: target _loop0_141
 static asdl_seq *
-_gather_124_rule(Parser *p)
+_gather_140_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -23673,27 +27002,27 @@ _gather_124_rule(Parser *p)
     }
     asdl_seq * _res = NULL;
     int _mark = p->mark;
-    { // target _loop0_125
+    { // target _loop0_141
         if (p->error_indicator) {
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _gather_124[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "target _loop0_125"));
+        D(fprintf(stderr, "%*c> _gather_140[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "target _loop0_141"));
         expr_ty elem;
         asdl_seq * seq;
         if (
             (elem = target_rule(p))  // target
             &&
-            (seq = _loop0_125_rule(p))  // _loop0_125
+            (seq = _loop0_141_rule(p))  // _loop0_141
         )
         {
-            D(fprintf(stderr, "%*c+ _gather_124[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "target _loop0_125"));
+            D(fprintf(stderr, "%*c+ _gather_140[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "target _loop0_141"));
             _res = _PyPegen_seq_insert_in_front(p, elem, seq);
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _gather_124[%d-%d]: %s failed!\n", p->level, ' ',
-                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "target _loop0_125"));
+        D(fprintf(stderr, "%*c%s _gather_140[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "target _loop0_141"));
     }
     _res = NULL;
   done:
@@ -23701,9 +27030,9 @@ _gather_124_rule(Parser *p)
     return _res;
 }
 
-// _tmp_126: args | expression for_if_clauses
+// _tmp_142: args | expression for_if_clauses
 static void *
-_tmp_126_rule(Parser *p)
+_tmp_142_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -23717,18 +27046,18 @@ _tmp_126_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_126[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "args"));
+        D(fprintf(stderr, "%*c> _tmp_142[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "args"));
         expr_ty args_var;
         if (
             (args_var = args_rule(p))  // args
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_126[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "args"));
+            D(fprintf(stderr, "%*c+ _tmp_142[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "args"));
             _res = args_var;
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_126[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_142[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "args"));
     }
     { // expression for_if_clauses
@@ -23736,7 +27065,7 @@ _tmp_126_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_126[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "expression for_if_clauses"));
+        D(fprintf(stderr, "%*c> _tmp_142[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "expression for_if_clauses"));
         expr_ty expression_var;
         asdl_comprehension_seq* for_if_clauses_var;
         if (
@@ -23745,12 +27074,12 @@ _tmp_126_rule(Parser *p)
             (for_if_clauses_var = for_if_clauses_rule(p))  // for_if_clauses
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_126[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "expression for_if_clauses"));
+            D(fprintf(stderr, "%*c+ _tmp_142[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "expression for_if_clauses"));
             _res = _PyPegen_dummy_name(p, expression_var, for_if_clauses_var);
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_126[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_142[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "expression for_if_clauses"));
     }
     _res = NULL;
@@ -23759,9 +27088,9 @@ _tmp_126_rule(Parser *p)
     return _res;
 }
 
-// _loop0_127: star_named_expressions
+// _loop0_143: star_named_expressions
 static asdl_seq *
-_loop0_127_rule(Parser *p)
+_loop0_143_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -23785,7 +27114,7 @@ _loop0_127_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop0_127[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "star_named_expressions"));
+        D(fprintf(stderr, "%*c> _loop0_143[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "star_named_expressions"));
         asdl_expr_seq* star_named_expressions_var;
         while (
             (star_named_expressions_var = star_named_expressions_rule(p))  // star_named_expressions
@@ -23807,7 +27136,7 @@ _loop0_127_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop0_127[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop0_143[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "star_named_expressions"));
     }
     asdl_seq *_seq = (asdl_seq*)_Py_asdl_generic_seq_new(_n, p->arena);
@@ -23820,14 +27149,14 @@ _loop0_127_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop0_127_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop0_143_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _loop0_128: (star_targets '=')
+// _loop0_144: (star_targets '=')
 static asdl_seq *
-_loop0_128_rule(Parser *p)
+_loop0_144_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -23851,13 +27180,13 @@ _loop0_128_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop0_128[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "(star_targets '=')"));
-        void *_tmp_159_var;
+        D(fprintf(stderr, "%*c> _loop0_144[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "(star_targets '=')"));
+        void *_tmp_175_var;
         while (
-            (_tmp_159_var = _tmp_159_rule(p))  // star_targets '='
+            (_tmp_175_var = _tmp_175_rule(p))  // star_targets '='
         )
         {
-            _res = _tmp_159_var;
+            _res = _tmp_175_var;
             if (_n == _children_capacity) {
                 _children_capacity *= 2;
                 void **_new_children = PyMem_Realloc(_children, _children_capacity*sizeof(void *));
@@ -23873,7 +27202,7 @@ _loop0_128_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop0_128[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop0_144[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "(star_targets '=')"));
     }
     asdl_seq *_seq = (asdl_seq*)_Py_asdl_generic_seq_new(_n, p->arena);
@@ -23886,14 +27215,14 @@ _loop0_128_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop0_128_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop0_144_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _loop0_129: (star_targets '=')
+// _loop0_145: (star_targets '=')
 static asdl_seq *
-_loop0_129_rule(Parser *p)
+_loop0_145_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -23917,13 +27246,13 @@ _loop0_129_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop0_129[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "(star_targets '=')"));
-        void *_tmp_160_var;
+        D(fprintf(stderr, "%*c> _loop0_145[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "(star_targets '=')"));
+        void *_tmp_176_var;
         while (
-            (_tmp_160_var = _tmp_160_rule(p))  // star_targets '='
+            (_tmp_176_var = _tmp_176_rule(p))  // star_targets '='
         )
         {
-            _res = _tmp_160_var;
+            _res = _tmp_176_var;
             if (_n == _children_capacity) {
                 _children_capacity *= 2;
                 void **_new_children = PyMem_Realloc(_children, _children_capacity*sizeof(void *));
@@ -23939,7 +27268,7 @@ _loop0_129_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop0_129[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop0_145[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "(star_targets '=')"));
     }
     asdl_seq *_seq = (asdl_seq*)_Py_asdl_generic_seq_new(_n, p->arena);
@@ -23952,14 +27281,14 @@ _loop0_129_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop0_129_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop0_145_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _tmp_130: yield_expr | star_expressions
+// _tmp_146: yield_expr | star_expressions
 static void *
-_tmp_130_rule(Parser *p)
+_tmp_146_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -23973,18 +27302,18 @@ _tmp_130_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_130[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "yield_expr"));
+        D(fprintf(stderr, "%*c> _tmp_146[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "yield_expr"));
         expr_ty yield_expr_var;
         if (
             (yield_expr_var = yield_expr_rule(p))  // yield_expr
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_130[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "yield_expr"));
+            D(fprintf(stderr, "%*c+ _tmp_146[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "yield_expr"));
             _res = yield_expr_var;
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_130[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_146[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "yield_expr"));
     }
     { // star_expressions
@@ -23992,18 +27321,18 @@ _tmp_130_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_130[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "star_expressions"));
+        D(fprintf(stderr, "%*c> _tmp_146[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "star_expressions"));
         expr_ty star_expressions_var;
         if (
             (star_expressions_var = star_expressions_rule(p))  // star_expressions
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_130[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "star_expressions"));
+            D(fprintf(stderr, "%*c+ _tmp_146[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "star_expressions"));
             _res = star_expressions_var;
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_130[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_146[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "star_expressions"));
     }
     _res = NULL;
@@ -24012,9 +27341,9 @@ _tmp_130_rule(Parser *p)
     return _res;
 }
 
-// _tmp_131: '[' | '(' | '{'
+// _tmp_147: '[' | '(' | '{'
 static void *
-_tmp_131_rule(Parser *p)
+_tmp_147_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -24028,18 +27357,18 @@ _tmp_131_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_131[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'['"));
+        D(fprintf(stderr, "%*c> _tmp_147[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'['"));
         Token * _literal;
         if (
             (_literal = _PyPegen_expect_token(p, 9))  // token='['
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_131[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'['"));
+            D(fprintf(stderr, "%*c+ _tmp_147[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'['"));
             _res = _literal;
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_131[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_147[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'['"));
     }
     { // '('
@@ -24047,18 +27376,18 @@ _tmp_131_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_131[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'('"));
+        D(fprintf(stderr, "%*c> _tmp_147[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'('"));
         Token * _literal;
         if (
             (_literal = _PyPegen_expect_token(p, 7))  // token='('
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_131[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'('"));
+            D(fprintf(stderr, "%*c+ _tmp_147[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'('"));
             _res = _literal;
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_131[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_147[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'('"));
     }
     { // '{'
@@ -24066,18 +27395,18 @@ _tmp_131_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_131[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'{'"));
+        D(fprintf(stderr, "%*c> _tmp_147[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'{'"));
         Token * _literal;
         if (
             (_literal = _PyPegen_expect_token(p, 25))  // token='{'
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_131[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'{'"));
+            D(fprintf(stderr, "%*c+ _tmp_147[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'{'"));
             _res = _literal;
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_131[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_147[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'{'"));
     }
     _res = NULL;
@@ -24086,9 +27415,9 @@ _tmp_131_rule(Parser *p)
     return _res;
 }
 
-// _tmp_132: '[' | '{'
+// _tmp_148: '[' | '{'
 static void *
-_tmp_132_rule(Parser *p)
+_tmp_148_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -24102,18 +27431,18 @@ _tmp_132_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_132[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'['"));
+        D(fprintf(stderr, "%*c> _tmp_148[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'['"));
         Token * _literal;
         if (
             (_literal = _PyPegen_expect_token(p, 9))  // token='['
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_132[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'['"));
+            D(fprintf(stderr, "%*c+ _tmp_148[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'['"));
             _res = _literal;
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_132[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_148[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'['"));
     }
     { // '{'
@@ -24121,18 +27450,18 @@ _tmp_132_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_132[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'{'"));
+        D(fprintf(stderr, "%*c> _tmp_148[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'{'"));
         Token * _literal;
         if (
             (_literal = _PyPegen_expect_token(p, 25))  // token='{'
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_132[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'{'"));
+            D(fprintf(stderr, "%*c+ _tmp_148[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'{'"));
             _res = _literal;
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_132[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_148[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'{'"));
     }
     _res = NULL;
@@ -24141,9 +27470,9 @@ _tmp_132_rule(Parser *p)
     return _res;
 }
 
-// _loop0_133: param_no_default
+// _loop0_149: param_no_default
 static asdl_seq *
-_loop0_133_rule(Parser *p)
+_loop0_149_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -24167,7 +27496,7 @@ _loop0_133_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop0_133[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "param_no_default"));
+        D(fprintf(stderr, "%*c> _loop0_149[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "param_no_default"));
         arg_ty param_no_default_var;
         while (
             (param_no_default_var = param_no_default_rule(p))  // param_no_default
@@ -24189,7 +27518,7 @@ _loop0_133_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop0_133[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop0_149[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "param_no_default"));
     }
     asdl_seq *_seq = (asdl_seq*)_Py_asdl_generic_seq_new(_n, p->arena);
@@ -24202,14 +27531,14 @@ _loop0_133_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop0_133_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop0_149_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _loop1_134: param_with_default
+// _loop1_150: param_with_default
 static asdl_seq *
-_loop1_134_rule(Parser *p)
+_loop1_150_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -24233,7 +27562,7 @@ _loop1_134_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop1_134[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "param_with_default"));
+        D(fprintf(stderr, "%*c> _loop1_150[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "param_with_default"));
         NameDefaultPair* param_with_default_var;
         while (
             (param_with_default_var = param_with_default_rule(p))  // param_with_default
@@ -24255,7 +27584,7 @@ _loop1_134_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop1_134[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop1_150[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "param_with_default"));
     }
     if (_n == 0 || p->error_indicator) {
@@ -24273,14 +27602,14 @@ _loop1_134_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop1_134_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop1_150_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _loop0_135: lambda_param_no_default
+// _loop0_151: lambda_param_no_default
 static asdl_seq *
-_loop0_135_rule(Parser *p)
+_loop0_151_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -24304,7 +27633,7 @@ _loop0_135_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop0_135[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "lambda_param_no_default"));
+        D(fprintf(stderr, "%*c> _loop0_151[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "lambda_param_no_default"));
         arg_ty lambda_param_no_default_var;
         while (
             (lambda_param_no_default_var = lambda_param_no_default_rule(p))  // lambda_param_no_default
@@ -24326,7 +27655,7 @@ _loop0_135_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop0_135[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop0_151[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "lambda_param_no_default"));
     }
     asdl_seq *_seq = (asdl_seq*)_Py_asdl_generic_seq_new(_n, p->arena);
@@ -24339,14 +27668,14 @@ _loop0_135_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop0_135_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop0_151_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _loop1_136: lambda_param_with_default
+// _loop1_152: lambda_param_with_default
 static asdl_seq *
-_loop1_136_rule(Parser *p)
+_loop1_152_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -24370,7 +27699,7 @@ _loop1_136_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop1_136[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "lambda_param_with_default"));
+        D(fprintf(stderr, "%*c> _loop1_152[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "lambda_param_with_default"));
         NameDefaultPair* lambda_param_with_default_var;
         while (
             (lambda_param_with_default_var = lambda_param_with_default_rule(p))  // lambda_param_with_default
@@ -24392,7 +27721,7 @@ _loop1_136_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop1_136[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop1_152[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "lambda_param_with_default"));
     }
     if (_n == 0 || p->error_indicator) {
@@ -24410,14 +27739,14 @@ _loop1_136_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop1_136_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop1_152_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _tmp_137: ')' | ',' (')' | '**')
+// _tmp_153: ')' | ',' (')' | '**')
 static void *
-_tmp_137_rule(Parser *p)
+_tmp_153_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -24431,18 +27760,18 @@ _tmp_137_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_137[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "')'"));
+        D(fprintf(stderr, "%*c> _tmp_153[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "')'"));
         Token * _literal;
         if (
             (_literal = _PyPegen_expect_token(p, 8))  // token=')'
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_137[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "')'"));
+            D(fprintf(stderr, "%*c+ _tmp_153[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "')'"));
             _res = _literal;
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_137[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_153[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "')'"));
     }
     { // ',' (')' | '**')
@@ -24450,21 +27779,21 @@ _tmp_137_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_137[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' (')' | '**')"));
+        D(fprintf(stderr, "%*c> _tmp_153[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' (')' | '**')"));
         Token * _literal;
-        void *_tmp_161_var;
+        void *_tmp_177_var;
         if (
             (_literal = _PyPegen_expect_token(p, 12))  // token=','
             &&
-            (_tmp_161_var = _tmp_161_rule(p))  // ')' | '**'
+            (_tmp_177_var = _tmp_177_rule(p))  // ')' | '**'
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_137[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "',' (')' | '**')"));
-            _res = _PyPegen_dummy_name(p, _literal, _tmp_161_var);
+            D(fprintf(stderr, "%*c+ _tmp_153[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "',' (')' | '**')"));
+            _res = _PyPegen_dummy_name(p, _literal, _tmp_177_var);
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_137[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_153[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "',' (')' | '**')"));
     }
     _res = NULL;
@@ -24473,9 +27802,9 @@ _tmp_137_rule(Parser *p)
     return _res;
 }
 
-// _tmp_138: ':' | ',' (':' | '**')
+// _tmp_154: ':' | ',' (':' | '**')
 static void *
-_tmp_138_rule(Parser *p)
+_tmp_154_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -24489,18 +27818,18 @@ _tmp_138_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_138[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "':'"));
+        D(fprintf(stderr, "%*c> _tmp_154[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "':'"));
         Token * _literal;
         if (
             (_literal = _PyPegen_expect_token(p, 11))  // token=':'
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_138[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "':'"));
+            D(fprintf(stderr, "%*c+ _tmp_154[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "':'"));
             _res = _literal;
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_138[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_154[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "':'"));
     }
     { // ',' (':' | '**')
@@ -24508,21 +27837,21 @@ _tmp_138_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_138[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' (':' | '**')"));
+        D(fprintf(stderr, "%*c> _tmp_154[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' (':' | '**')"));
         Token * _literal;
-        void *_tmp_162_var;
+        void *_tmp_178_var;
         if (
             (_literal = _PyPegen_expect_token(p, 12))  // token=','
             &&
-            (_tmp_162_var = _tmp_162_rule(p))  // ':' | '**'
+            (_tmp_178_var = _tmp_178_rule(p))  // ':' | '**'
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_138[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "',' (':' | '**')"));
-            _res = _PyPegen_dummy_name(p, _literal, _tmp_162_var);
+            D(fprintf(stderr, "%*c+ _tmp_154[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "',' (':' | '**')"));
+            _res = _PyPegen_dummy_name(p, _literal, _tmp_178_var);
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_138[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_154[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "',' (':' | '**')"));
     }
     _res = NULL;
@@ -24531,9 +27860,9 @@ _tmp_138_rule(Parser *p)
     return _res;
 }
 
-// _tmp_139: ',' | ')' | ':'
+// _tmp_155: ',' | ')' | ':'
 static void *
-_tmp_139_rule(Parser *p)
+_tmp_155_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -24547,18 +27876,18 @@ _tmp_139_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_139[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "','"));
+        D(fprintf(stderr, "%*c> _tmp_155[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "','"));
         Token * _literal;
         if (
             (_literal = _PyPegen_expect_token(p, 12))  // token=','
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_139[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "','"));
+            D(fprintf(stderr, "%*c+ _tmp_155[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "','"));
             _res = _literal;
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_139[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_155[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "','"));
     }
     { // ')'
@@ -24566,18 +27895,18 @@ _tmp_139_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_139[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "')'"));
+        D(fprintf(stderr, "%*c> _tmp_155[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "')'"));
         Token * _literal;
         if (
             (_literal = _PyPegen_expect_token(p, 8))  // token=')'
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_139[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "')'"));
+            D(fprintf(stderr, "%*c+ _tmp_155[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "')'"));
             _res = _literal;
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_139[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_155[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "')'"));
     }
     { // ':'
@@ -24585,18 +27914,18 @@ _tmp_139_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_139[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "':'"));
+        D(fprintf(stderr, "%*c> _tmp_155[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "':'"));
         Token * _literal;
         if (
             (_literal = _PyPegen_expect_token(p, 11))  // token=':'
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_139[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "':'"));
+            D(fprintf(stderr, "%*c+ _tmp_155[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "':'"));
             _res = _literal;
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_139[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_155[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "':'"));
     }
     _res = NULL;
@@ -24605,9 +27934,9 @@ _tmp_139_rule(Parser *p)
     return _res;
 }
 
-// _loop0_141: ',' (expression ['as' star_target])
+// _loop0_157: ',' (expression ['as' star_target])
 static asdl_seq *
-_loop0_141_rule(Parser *p)
+_loop0_157_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -24631,13 +27960,13 @@ _loop0_141_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop0_141[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' (expression ['as' star_target])"));
+        D(fprintf(stderr, "%*c> _loop0_157[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' (expression ['as' star_target])"));
         Token * _literal;
         void *elem;
         while (
             (_literal = _PyPegen_expect_token(p, 12))  // token=','
             &&
-            (elem = _tmp_163_rule(p))  // expression ['as' star_target]
+            (elem = _tmp_179_rule(p))  // expression ['as' star_target]
         )
         {
             _res = elem;
@@ -24662,7 +27991,7 @@ _loop0_141_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop0_141[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop0_157[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "',' (expression ['as' star_target])"));
     }
     asdl_seq *_seq = (asdl_seq*)_Py_asdl_generic_seq_new(_n, p->arena);
@@ -24675,14 +28004,14 @@ _loop0_141_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop0_141_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop0_157_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _gather_140: (expression ['as' star_target]) _loop0_141
+// _gather_156: (expression ['as' star_target]) _loop0_157
 static asdl_seq *
-_gather_140_rule(Parser *p)
+_gather_156_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -24691,27 +28020,27 @@ _gather_140_rule(Parser *p)
     }
     asdl_seq * _res = NULL;
     int _mark = p->mark;
-    { // (expression ['as' star_target]) _loop0_141
+    { // (expression ['as' star_target]) _loop0_157
         if (p->error_indicator) {
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _gather_140[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "(expression ['as' star_target]) _loop0_141"));
+        D(fprintf(stderr, "%*c> _gather_156[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "(expression ['as' star_target]) _loop0_157"));
         void *elem;
         asdl_seq * seq;
         if (
-            (elem = _tmp_163_rule(p))  // expression ['as' star_target]
+            (elem = _tmp_179_rule(p))  // expression ['as' star_target]
             &&
-            (seq = _loop0_141_rule(p))  // _loop0_141
+            (seq = _loop0_157_rule(p))  // _loop0_157
         )
         {
-            D(fprintf(stderr, "%*c+ _gather_140[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "(expression ['as' star_target]) _loop0_141"));
+            D(fprintf(stderr, "%*c+ _gather_156[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "(expression ['as' star_target]) _loop0_157"));
             _res = _PyPegen_seq_insert_in_front(p, elem, seq);
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _gather_140[%d-%d]: %s failed!\n", p->level, ' ',
-                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "(expression ['as' star_target]) _loop0_141"));
+        D(fprintf(stderr, "%*c%s _gather_156[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "(expression ['as' star_target]) _loop0_157"));
     }
     _res = NULL;
   done:
@@ -24719,9 +28048,9 @@ _gather_140_rule(Parser *p)
     return _res;
 }
 
-// _loop0_143: ',' (expressions ['as' star_target])
+// _loop0_159: ',' (expressions ['as' star_target])
 static asdl_seq *
-_loop0_143_rule(Parser *p)
+_loop0_159_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -24745,13 +28074,13 @@ _loop0_143_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop0_143[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' (expressions ['as' star_target])"));
+        D(fprintf(stderr, "%*c> _loop0_159[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' (expressions ['as' star_target])"));
         Token * _literal;
         void *elem;
         while (
             (_literal = _PyPegen_expect_token(p, 12))  // token=','
             &&
-            (elem = _tmp_164_rule(p))  // expressions ['as' star_target]
+            (elem = _tmp_180_rule(p))  // expressions ['as' star_target]
         )
         {
             _res = elem;
@@ -24776,7 +28105,7 @@ _loop0_143_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop0_143[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop0_159[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "',' (expressions ['as' star_target])"));
     }
     asdl_seq *_seq = (asdl_seq*)_Py_asdl_generic_seq_new(_n, p->arena);
@@ -24789,14 +28118,14 @@ _loop0_143_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop0_143_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop0_159_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _gather_142: (expressions ['as' star_target]) _loop0_143
+// _gather_158: (expressions ['as' star_target]) _loop0_159
 static asdl_seq *
-_gather_142_rule(Parser *p)
+_gather_158_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -24805,27 +28134,27 @@ _gather_142_rule(Parser *p)
     }
     asdl_seq * _res = NULL;
     int _mark = p->mark;
-    { // (expressions ['as' star_target]) _loop0_143
+    { // (expressions ['as' star_target]) _loop0_159
         if (p->error_indicator) {
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _gather_142[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "(expressions ['as' star_target]) _loop0_143"));
+        D(fprintf(stderr, "%*c> _gather_158[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "(expressions ['as' star_target]) _loop0_159"));
         void *elem;
         asdl_seq * seq;
         if (
-            (elem = _tmp_164_rule(p))  // expressions ['as' star_target]
+            (elem = _tmp_180_rule(p))  // expressions ['as' star_target]
             &&
-            (seq = _loop0_143_rule(p))  // _loop0_143
+            (seq = _loop0_159_rule(p))  // _loop0_159
         )
         {
-            D(fprintf(stderr, "%*c+ _gather_142[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "(expressions ['as' star_target]) _loop0_143"));
+            D(fprintf(stderr, "%*c+ _gather_158[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "(expressions ['as' star_target]) _loop0_159"));
             _res = _PyPegen_seq_insert_in_front(p, elem, seq);
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _gather_142[%d-%d]: %s failed!\n", p->level, ' ',
-                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "(expressions ['as' star_target]) _loop0_143"));
+        D(fprintf(stderr, "%*c%s _gather_158[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "(expressions ['as' star_target]) _loop0_159"));
     }
     _res = NULL;
   done:
@@ -24833,9 +28162,9 @@ _gather_142_rule(Parser *p)
     return _res;
 }
 
-// _tmp_144: 'as' NAME
+// _tmp_160: 'as' NAME
 static void *
-_tmp_144_rule(Parser *p)
+_tmp_160_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -24849,7 +28178,7 @@ _tmp_144_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_144[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'as' NAME"));
+        D(fprintf(stderr, "%*c> _tmp_160[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'as' NAME"));
         Token * _keyword;
         expr_ty name_var;
         if (
@@ -24858,12 +28187,12 @@ _tmp_144_rule(Parser *p)
             (name_var = _PyPegen_name_token(p))  // NAME
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_144[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'as' NAME"));
+            D(fprintf(stderr, "%*c+ _tmp_160[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'as' NAME"));
             _res = _PyPegen_dummy_name(p, _keyword, name_var);
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_144[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_160[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'as' NAME"));
     }
     _res = NULL;
@@ -24872,9 +28201,9 @@ _tmp_144_rule(Parser *p)
     return _res;
 }
 
-// _tmp_145: 'as' NAME
+// _tmp_161: 'as' NAME
 static void *
-_tmp_145_rule(Parser *p)
+_tmp_161_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -24888,7 +28217,7 @@ _tmp_145_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_145[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'as' NAME"));
+        D(fprintf(stderr, "%*c> _tmp_161[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'as' NAME"));
         Token * _keyword;
         expr_ty name_var;
         if (
@@ -24897,12 +28226,12 @@ _tmp_145_rule(Parser *p)
             (name_var = _PyPegen_name_token(p))  // NAME
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_145[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'as' NAME"));
+            D(fprintf(stderr, "%*c+ _tmp_161[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'as' NAME"));
             _res = _PyPegen_dummy_name(p, _keyword, name_var);
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_145[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_161[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'as' NAME"));
     }
     _res = NULL;
@@ -24911,9 +28240,9 @@ _tmp_145_rule(Parser *p)
     return _res;
 }
 
-// _tmp_146: star_targets '='
+// _tmp_162: star_targets '='
 static void *
-_tmp_146_rule(Parser *p)
+_tmp_162_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -24927,7 +28256,7 @@ _tmp_146_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_146[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "star_targets '='"));
+        D(fprintf(stderr, "%*c> _tmp_162[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "star_targets '='"));
         Token * _literal;
         expr_ty z;
         if (
@@ -24936,7 +28265,7 @@ _tmp_146_rule(Parser *p)
             (_literal = _PyPegen_expect_token(p, 22))  // token='='
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_146[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "star_targets '='"));
+            D(fprintf(stderr, "%*c+ _tmp_162[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "star_targets '='"));
             _res = z;
             if (_res == NULL && PyErr_Occurred()) {
                 p->error_indicator = 1;
@@ -24946,7 +28275,7 @@ _tmp_146_rule(Parser *p)
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_146[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_162[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "star_targets '='"));
     }
     _res = NULL;
@@ -24955,9 +28284,9 @@ _tmp_146_rule(Parser *p)
     return _res;
 }
 
-// _tmp_147: '.' | '...'
+// _tmp_163: '.' | '...'
 static void *
-_tmp_147_rule(Parser *p)
+_tmp_163_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -24971,18 +28300,18 @@ _tmp_147_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_147[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'.'"));
+        D(fprintf(stderr, "%*c> _tmp_163[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'.'"));
         Token * _literal;
         if (
             (_literal = _PyPegen_expect_token(p, 23))  // token='.'
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_147[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'.'"));
+            D(fprintf(stderr, "%*c+ _tmp_163[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'.'"));
             _res = _literal;
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_147[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_163[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'.'"));
     }
     { // '...'
@@ -24990,18 +28319,18 @@ _tmp_147_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_147[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'...'"));
+        D(fprintf(stderr, "%*c> _tmp_163[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'...'"));
         Token * _literal;
         if (
             (_literal = _PyPegen_expect_token(p, 52))  // token='...'
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_147[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'...'"));
+            D(fprintf(stderr, "%*c+ _tmp_163[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'...'"));
             _res = _literal;
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_147[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_163[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'...'"));
     }
     _res = NULL;
@@ -25010,9 +28339,9 @@ _tmp_147_rule(Parser *p)
     return _res;
 }
 
-// _tmp_148: '.' | '...'
+// _tmp_164: '.' | '...'
 static void *
-_tmp_148_rule(Parser *p)
+_tmp_164_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -25026,18 +28355,18 @@ _tmp_148_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_148[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'.'"));
+        D(fprintf(stderr, "%*c> _tmp_164[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'.'"));
         Token * _literal;
         if (
             (_literal = _PyPegen_expect_token(p, 23))  // token='.'
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_148[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'.'"));
+            D(fprintf(stderr, "%*c+ _tmp_164[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'.'"));
             _res = _literal;
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_148[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_164[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'.'"));
     }
     { // '...'
@@ -25045,18 +28374,18 @@ _tmp_148_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_148[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'...'"));
+        D(fprintf(stderr, "%*c> _tmp_164[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'...'"));
         Token * _literal;
         if (
             (_literal = _PyPegen_expect_token(p, 52))  // token='...'
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_148[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'...'"));
+            D(fprintf(stderr, "%*c+ _tmp_164[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'...'"));
             _res = _literal;
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_148[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_164[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'...'"));
     }
     _res = NULL;
@@ -25065,9 +28394,9 @@ _tmp_148_rule(Parser *p)
     return _res;
 }
 
-// _tmp_149: '@' named_expression NEWLINE
+// _tmp_165: '@' named_expression NEWLINE
 static void *
-_tmp_149_rule(Parser *p)
+_tmp_165_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -25081,7 +28410,7 @@ _tmp_149_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_149[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'@' named_expression NEWLINE"));
+        D(fprintf(stderr, "%*c> _tmp_165[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'@' named_expression NEWLINE"));
         Token * _literal;
         expr_ty f;
         Token * newline_var;
@@ -25093,7 +28422,7 @@ _tmp_149_rule(Parser *p)
             (newline_var = _PyPegen_expect_token(p, NEWLINE))  // token='NEWLINE'
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_149[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'@' named_expression NEWLINE"));
+            D(fprintf(stderr, "%*c+ _tmp_165[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'@' named_expression NEWLINE"));
             _res = f;
             if (_res == NULL && PyErr_Occurred()) {
                 p->error_indicator = 1;
@@ -25103,7 +28432,7 @@ _tmp_149_rule(Parser *p)
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_149[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_165[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'@' named_expression NEWLINE"));
     }
     _res = NULL;
@@ -25112,9 +28441,9 @@ _tmp_149_rule(Parser *p)
     return _res;
 }
 
-// _tmp_150: ',' star_expression
+// _tmp_166: ',' star_expression
 static void *
-_tmp_150_rule(Parser *p)
+_tmp_166_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -25128,7 +28457,7 @@ _tmp_150_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_150[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' star_expression"));
+        D(fprintf(stderr, "%*c> _tmp_166[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' star_expression"));
         Token * _literal;
         expr_ty c;
         if (
@@ -25137,7 +28466,7 @@ _tmp_150_rule(Parser *p)
             (c = star_expression_rule(p))  // star_expression
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_150[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "',' star_expression"));
+            D(fprintf(stderr, "%*c+ _tmp_166[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "',' star_expression"));
             _res = c;
             if (_res == NULL && PyErr_Occurred()) {
                 p->error_indicator = 1;
@@ -25147,7 +28476,7 @@ _tmp_150_rule(Parser *p)
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_150[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_166[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "',' star_expression"));
     }
     _res = NULL;
@@ -25156,9 +28485,9 @@ _tmp_150_rule(Parser *p)
     return _res;
 }
 
-// _tmp_151: ',' expression
+// _tmp_167: ',' expression
 static void *
-_tmp_151_rule(Parser *p)
+_tmp_167_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -25172,7 +28501,7 @@ _tmp_151_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_151[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' expression"));
+        D(fprintf(stderr, "%*c> _tmp_167[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' expression"));
         Token * _literal;
         expr_ty c;
         if (
@@ -25181,7 +28510,7 @@ _tmp_151_rule(Parser *p)
             (c = expression_rule(p))  // expression
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_151[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "',' expression"));
+            D(fprintf(stderr, "%*c+ _tmp_167[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "',' expression"));
             _res = c;
             if (_res == NULL && PyErr_Occurred()) {
                 p->error_indicator = 1;
@@ -25191,7 +28520,7 @@ _tmp_151_rule(Parser *p)
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_151[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_167[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "',' expression"));
     }
     _res = NULL;
@@ -25200,9 +28529,9 @@ _tmp_151_rule(Parser *p)
     return _res;
 }
 
-// _tmp_152: 'or' conjunction
+// _tmp_168: 'or' conjunction
 static void *
-_tmp_152_rule(Parser *p)
+_tmp_168_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -25216,7 +28545,7 @@ _tmp_152_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_152[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'or' conjunction"));
+        D(fprintf(stderr, "%*c> _tmp_168[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'or' conjunction"));
         Token * _keyword;
         expr_ty c;
         if (
@@ -25225,7 +28554,7 @@ _tmp_152_rule(Parser *p)
             (c = conjunction_rule(p))  // conjunction
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_152[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'or' conjunction"));
+            D(fprintf(stderr, "%*c+ _tmp_168[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'or' conjunction"));
             _res = c;
             if (_res == NULL && PyErr_Occurred()) {
                 p->error_indicator = 1;
@@ -25235,7 +28564,7 @@ _tmp_152_rule(Parser *p)
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_152[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_168[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'or' conjunction"));
     }
     _res = NULL;
@@ -25244,9 +28573,9 @@ _tmp_152_rule(Parser *p)
     return _res;
 }
 
-// _tmp_153: 'and' inversion
+// _tmp_169: 'and' inversion
 static void *
-_tmp_153_rule(Parser *p)
+_tmp_169_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -25260,7 +28589,7 @@ _tmp_153_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_153[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'and' inversion"));
+        D(fprintf(stderr, "%*c> _tmp_169[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'and' inversion"));
         Token * _keyword;
         expr_ty c;
         if (
@@ -25269,7 +28598,7 @@ _tmp_153_rule(Parser *p)
             (c = inversion_rule(p))  // inversion
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_153[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'and' inversion"));
+            D(fprintf(stderr, "%*c+ _tmp_169[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'and' inversion"));
             _res = c;
             if (_res == NULL && PyErr_Occurred()) {
                 p->error_indicator = 1;
@@ -25279,7 +28608,7 @@ _tmp_153_rule(Parser *p)
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_153[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_169[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'and' inversion"));
     }
     _res = NULL;
@@ -25288,9 +28617,9 @@ _tmp_153_rule(Parser *p)
     return _res;
 }
 
-// _tmp_154: 'if' disjunction
+// _tmp_170: 'if' disjunction
 static void *
-_tmp_154_rule(Parser *p)
+_tmp_170_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -25304,7 +28633,7 @@ _tmp_154_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_154[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'if' disjunction"));
+        D(fprintf(stderr, "%*c> _tmp_170[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'if' disjunction"));
         Token * _keyword;
         expr_ty z;
         if (
@@ -25313,7 +28642,7 @@ _tmp_154_rule(Parser *p)
             (z = disjunction_rule(p))  // disjunction
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_154[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'if' disjunction"));
+            D(fprintf(stderr, "%*c+ _tmp_170[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'if' disjunction"));
             _res = z;
             if (_res == NULL && PyErr_Occurred()) {
                 p->error_indicator = 1;
@@ -25323,7 +28652,7 @@ _tmp_154_rule(Parser *p)
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_154[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_170[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'if' disjunction"));
     }
     _res = NULL;
@@ -25332,9 +28661,9 @@ _tmp_154_rule(Parser *p)
     return _res;
 }
 
-// _tmp_155: 'if' disjunction
+// _tmp_171: 'if' disjunction
 static void *
-_tmp_155_rule(Parser *p)
+_tmp_171_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -25348,7 +28677,7 @@ _tmp_155_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_155[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'if' disjunction"));
+        D(fprintf(stderr, "%*c> _tmp_171[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'if' disjunction"));
         Token * _keyword;
         expr_ty z;
         if (
@@ -25357,7 +28686,7 @@ _tmp_155_rule(Parser *p)
             (z = disjunction_rule(p))  // disjunction
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_155[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'if' disjunction"));
+            D(fprintf(stderr, "%*c+ _tmp_171[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'if' disjunction"));
             _res = z;
             if (_res == NULL && PyErr_Occurred()) {
                 p->error_indicator = 1;
@@ -25367,7 +28696,7 @@ _tmp_155_rule(Parser *p)
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_155[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_171[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'if' disjunction"));
     }
     _res = NULL;
@@ -25376,9 +28705,9 @@ _tmp_155_rule(Parser *p)
     return _res;
 }
 
-// _tmp_156: starred_expression | named_expression !'='
+// _tmp_172: starred_expression | named_expression !'='
 static void *
-_tmp_156_rule(Parser *p)
+_tmp_172_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -25392,18 +28721,18 @@ _tmp_156_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_156[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "starred_expression"));
+        D(fprintf(stderr, "%*c> _tmp_172[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "starred_expression"));
         expr_ty starred_expression_var;
         if (
             (starred_expression_var = starred_expression_rule(p))  // starred_expression
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_156[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "starred_expression"));
+            D(fprintf(stderr, "%*c+ _tmp_172[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "starred_expression"));
             _res = starred_expression_var;
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_156[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_172[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "starred_expression"));
     }
     { // named_expression !'='
@@ -25411,7 +28740,7 @@ _tmp_156_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_156[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "named_expression !'='"));
+        D(fprintf(stderr, "%*c> _tmp_172[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "named_expression !'='"));
         expr_ty named_expression_var;
         if (
             (named_expression_var = named_expression_rule(p))  // named_expression
@@ -25419,12 +28748,12 @@ _tmp_156_rule(Parser *p)
             _PyPegen_lookahead_with_int(0, _PyPegen_expect_token, p, 22)  // token='='
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_156[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "named_expression !'='"));
+            D(fprintf(stderr, "%*c+ _tmp_172[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "named_expression !'='"));
             _res = named_expression_var;
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_156[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_172[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "named_expression !'='"));
     }
     _res = NULL;
@@ -25433,9 +28762,9 @@ _tmp_156_rule(Parser *p)
     return _res;
 }
 
-// _tmp_157: ',' star_target
+// _tmp_173: ',' star_target
 static void *
-_tmp_157_rule(Parser *p)
+_tmp_173_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -25449,7 +28778,7 @@ _tmp_157_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_157[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' star_target"));
+        D(fprintf(stderr, "%*c> _tmp_173[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' star_target"));
         Token * _literal;
         expr_ty c;
         if (
@@ -25458,7 +28787,7 @@ _tmp_157_rule(Parser *p)
             (c = star_target_rule(p))  // star_target
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_157[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "',' star_target"));
+            D(fprintf(stderr, "%*c+ _tmp_173[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "',' star_target"));
             _res = c;
             if (_res == NULL && PyErr_Occurred()) {
                 p->error_indicator = 1;
@@ -25468,7 +28797,7 @@ _tmp_157_rule(Parser *p)
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_157[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_173[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "',' star_target"));
     }
     _res = NULL;
@@ -25477,9 +28806,9 @@ _tmp_157_rule(Parser *p)
     return _res;
 }
 
-// _tmp_158: ',' star_target
+// _tmp_174: ',' star_target
 static void *
-_tmp_158_rule(Parser *p)
+_tmp_174_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -25493,7 +28822,7 @@ _tmp_158_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_158[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' star_target"));
+        D(fprintf(stderr, "%*c> _tmp_174[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' star_target"));
         Token * _literal;
         expr_ty c;
         if (
@@ -25502,7 +28831,7 @@ _tmp_158_rule(Parser *p)
             (c = star_target_rule(p))  // star_target
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_158[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "',' star_target"));
+            D(fprintf(stderr, "%*c+ _tmp_174[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "',' star_target"));
             _res = c;
             if (_res == NULL && PyErr_Occurred()) {
                 p->error_indicator = 1;
@@ -25512,7 +28841,7 @@ _tmp_158_rule(Parser *p)
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_158[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_174[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "',' star_target"));
     }
     _res = NULL;
@@ -25521,9 +28850,9 @@ _tmp_158_rule(Parser *p)
     return _res;
 }
 
-// _tmp_159: star_targets '='
+// _tmp_175: star_targets '='
 static void *
-_tmp_159_rule(Parser *p)
+_tmp_175_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -25537,7 +28866,7 @@ _tmp_159_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_159[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "star_targets '='"));
+        D(fprintf(stderr, "%*c> _tmp_175[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "star_targets '='"));
         Token * _literal;
         expr_ty star_targets_var;
         if (
@@ -25546,12 +28875,12 @@ _tmp_159_rule(Parser *p)
             (_literal = _PyPegen_expect_token(p, 22))  // token='='
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_159[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "star_targets '='"));
+            D(fprintf(stderr, "%*c+ _tmp_175[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "star_targets '='"));
             _res = _PyPegen_dummy_name(p, star_targets_var, _literal);
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_159[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_175[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "star_targets '='"));
     }
     _res = NULL;
@@ -25560,9 +28889,9 @@ _tmp_159_rule(Parser *p)
     return _res;
 }
 
-// _tmp_160: star_targets '='
+// _tmp_176: star_targets '='
 static void *
-_tmp_160_rule(Parser *p)
+_tmp_176_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -25576,7 +28905,7 @@ _tmp_160_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_160[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "star_targets '='"));
+        D(fprintf(stderr, "%*c> _tmp_176[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "star_targets '='"));
         Token * _literal;
         expr_ty star_targets_var;
         if (
@@ -25585,12 +28914,12 @@ _tmp_160_rule(Parser *p)
             (_literal = _PyPegen_expect_token(p, 22))  // token='='
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_160[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "star_targets '='"));
+            D(fprintf(stderr, "%*c+ _tmp_176[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "star_targets '='"));
             _res = _PyPegen_dummy_name(p, star_targets_var, _literal);
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_160[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_176[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "star_targets '='"));
     }
     _res = NULL;
@@ -25599,9 +28928,9 @@ _tmp_160_rule(Parser *p)
     return _res;
 }
 
-// _tmp_161: ')' | '**'
+// _tmp_177: ')' | '**'
 static void *
-_tmp_161_rule(Parser *p)
+_tmp_177_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -25615,18 +28944,18 @@ _tmp_161_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_161[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "')'"));
+        D(fprintf(stderr, "%*c> _tmp_177[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "')'"));
         Token * _literal;
         if (
             (_literal = _PyPegen_expect_token(p, 8))  // token=')'
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_161[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "')'"));
+            D(fprintf(stderr, "%*c+ _tmp_177[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "')'"));
             _res = _literal;
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_161[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_177[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "')'"));
     }
     { // '**'
@@ -25634,18 +28963,18 @@ _tmp_161_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_161[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'**'"));
+        D(fprintf(stderr, "%*c> _tmp_177[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'**'"));
         Token * _literal;
         if (
             (_literal = _PyPegen_expect_token(p, 35))  // token='**'
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_161[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'**'"));
+            D(fprintf(stderr, "%*c+ _tmp_177[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'**'"));
             _res = _literal;
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_161[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_177[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'**'"));
     }
     _res = NULL;
@@ -25654,9 +28983,9 @@ _tmp_161_rule(Parser *p)
     return _res;
 }
 
-// _tmp_162: ':' | '**'
+// _tmp_178: ':' | '**'
 static void *
-_tmp_162_rule(Parser *p)
+_tmp_178_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -25670,18 +28999,18 @@ _tmp_162_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_162[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "':'"));
+        D(fprintf(stderr, "%*c> _tmp_178[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "':'"));
         Token * _literal;
         if (
             (_literal = _PyPegen_expect_token(p, 11))  // token=':'
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_162[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "':'"));
+            D(fprintf(stderr, "%*c+ _tmp_178[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "':'"));
             _res = _literal;
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_162[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_178[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "':'"));
     }
     { // '**'
@@ -25689,18 +29018,18 @@ _tmp_162_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_162[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'**'"));
+        D(fprintf(stderr, "%*c> _tmp_178[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'**'"));
         Token * _literal;
         if (
             (_literal = _PyPegen_expect_token(p, 35))  // token='**'
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_162[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'**'"));
+            D(fprintf(stderr, "%*c+ _tmp_178[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'**'"));
             _res = _literal;
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_162[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_178[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'**'"));
     }
     _res = NULL;
@@ -25709,9 +29038,9 @@ _tmp_162_rule(Parser *p)
     return _res;
 }
 
-// _tmp_163: expression ['as' star_target]
+// _tmp_179: expression ['as' star_target]
 static void *
-_tmp_163_rule(Parser *p)
+_tmp_179_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -25725,22 +29054,22 @@ _tmp_163_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_163[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "expression ['as' star_target]"));
+        D(fprintf(stderr, "%*c> _tmp_179[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "expression ['as' star_target]"));
         void *_opt_var;
         UNUSED(_opt_var); // Silence compiler warnings
         expr_ty expression_var;
         if (
             (expression_var = expression_rule(p))  // expression
             &&
-            (_opt_var = _tmp_165_rule(p), 1)  // ['as' star_target]
+            (_opt_var = _tmp_181_rule(p), 1)  // ['as' star_target]
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_163[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "expression ['as' star_target]"));
+            D(fprintf(stderr, "%*c+ _tmp_179[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "expression ['as' star_target]"));
             _res = _PyPegen_dummy_name(p, expression_var, _opt_var);
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_163[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_179[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "expression ['as' star_target]"));
     }
     _res = NULL;
@@ -25749,9 +29078,9 @@ _tmp_163_rule(Parser *p)
     return _res;
 }
 
-// _tmp_164: expressions ['as' star_target]
+// _tmp_180: expressions ['as' star_target]
 static void *
-_tmp_164_rule(Parser *p)
+_tmp_180_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -25765,22 +29094,22 @@ _tmp_164_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_164[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "expressions ['as' star_target]"));
+        D(fprintf(stderr, "%*c> _tmp_180[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "expressions ['as' star_target]"));
         void *_opt_var;
         UNUSED(_opt_var); // Silence compiler warnings
         expr_ty expressions_var;
         if (
             (expressions_var = expressions_rule(p))  // expressions
             &&
-            (_opt_var = _tmp_166_rule(p), 1)  // ['as' star_target]
+            (_opt_var = _tmp_182_rule(p), 1)  // ['as' star_target]
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_164[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "expressions ['as' star_target]"));
+            D(fprintf(stderr, "%*c+ _tmp_180[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "expressions ['as' star_target]"));
             _res = _PyPegen_dummy_name(p, expressions_var, _opt_var);
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_164[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_180[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "expressions ['as' star_target]"));
     }
     _res = NULL;
@@ -25789,9 +29118,9 @@ _tmp_164_rule(Parser *p)
     return _res;
 }
 
-// _tmp_165: 'as' star_target
+// _tmp_181: 'as' star_target
 static void *
-_tmp_165_rule(Parser *p)
+_tmp_181_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -25805,7 +29134,7 @@ _tmp_165_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_165[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'as' star_target"));
+        D(fprintf(stderr, "%*c> _tmp_181[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'as' star_target"));
         Token * _keyword;
         expr_ty star_target_var;
         if (
@@ -25814,12 +29143,12 @@ _tmp_165_rule(Parser *p)
             (star_target_var = star_target_rule(p))  // star_target
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_165[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'as' star_target"));
+            D(fprintf(stderr, "%*c+ _tmp_181[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'as' star_target"));
             _res = _PyPegen_dummy_name(p, _keyword, star_target_var);
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_165[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_181[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'as' star_target"));
     }
     _res = NULL;
@@ -25828,9 +29157,9 @@ _tmp_165_rule(Parser *p)
     return _res;
 }
 
-// _tmp_166: 'as' star_target
+// _tmp_182: 'as' star_target
 static void *
-_tmp_166_rule(Parser *p)
+_tmp_182_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -25844,7 +29173,7 @@ _tmp_166_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_166[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'as' star_target"));
+        D(fprintf(stderr, "%*c> _tmp_182[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'as' star_target"));
         Token * _keyword;
         expr_ty star_target_var;
         if (
@@ -25853,12 +29182,12 @@ _tmp_166_rule(Parser *p)
             (star_target_var = star_target_rule(p))  // star_target
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_166[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'as' star_target"));
+            D(fprintf(stderr, "%*c+ _tmp_182[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'as' star_target"));
             _res = _PyPegen_dummy_name(p, _keyword, star_target_var);
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_166[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_182[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'as' star_target"));
     }
     _res = NULL;
diff --git a/Python/Python-ast.c b/Python/Python-ast.c
index debd3e3..439da8f 100644
--- a/Python/Python-ast.c
+++ b/Python/Python-ast.c
@@ -91,6 +91,9 @@ struct ast_state {
     PyObject *Lt_type;
     PyObject *MatMult_singleton;
     PyObject *MatMult_type;
+    PyObject *MatchAs_type;
+    PyObject *MatchOr_type;
+    PyObject *Match_type;
     PyObject *Mod_singleton;
     PyObject *Mod_type;
     PyObject *Module_type;
@@ -137,6 +140,7 @@ struct ast_state {
     PyObject *Yield_type;
     PyObject *__dict__;
     PyObject *__doc__;
+    PyObject *__match_args__;
     PyObject *__module__;
     PyObject *_attributes;
     PyObject *_fields;
@@ -153,6 +157,7 @@ struct ast_state {
     PyObject *bases;
     PyObject *body;
     PyObject *boolop_type;
+    PyObject *cases;
     PyObject *cause;
     PyObject *cmpop_type;
     PyObject *col_offset;
@@ -175,6 +180,7 @@ struct ast_state {
     PyObject *format_spec;
     PyObject *func;
     PyObject *generators;
+    PyObject *guard;
     PyObject *handlers;
     PyObject *id;
     PyObject *ifs;
@@ -193,6 +199,7 @@ struct ast_state {
     PyObject *level;
     PyObject *lineno;
     PyObject *lower;
+    PyObject *match_case_type;
     PyObject *mod_type;
     PyObject *module;
     PyObject *msg;
@@ -204,6 +211,8 @@ struct ast_state {
     PyObject *ops;
     PyObject *optional_vars;
     PyObject *orelse;
+    PyObject *pattern;
+    PyObject *patterns;
     PyObject *posonlyargs;
     PyObject *returns;
     PyObject *right;
@@ -211,6 +220,7 @@ struct ast_state {
     PyObject *slice;
     PyObject *step;
     PyObject *stmt_type;
+    PyObject *subject;
     PyObject *tag;
     PyObject *target;
     PyObject *targets;
@@ -348,6 +358,9 @@ void _PyAST_Fini(PyInterpreterState *interp)
     Py_CLEAR(state->Lt_type);
     Py_CLEAR(state->MatMult_singleton);
     Py_CLEAR(state->MatMult_type);
+    Py_CLEAR(state->MatchAs_type);
+    Py_CLEAR(state->MatchOr_type);
+    Py_CLEAR(state->Match_type);
     Py_CLEAR(state->Mod_singleton);
     Py_CLEAR(state->Mod_type);
     Py_CLEAR(state->Module_type);
@@ -394,6 +407,7 @@ void _PyAST_Fini(PyInterpreterState *interp)
     Py_CLEAR(state->Yield_type);
     Py_CLEAR(state->__dict__);
     Py_CLEAR(state->__doc__);
+    Py_CLEAR(state->__match_args__);
     Py_CLEAR(state->__module__);
     Py_CLEAR(state->_attributes);
     Py_CLEAR(state->_fields);
@@ -410,6 +424,7 @@ void _PyAST_Fini(PyInterpreterState *interp)
     Py_CLEAR(state->bases);
     Py_CLEAR(state->body);
     Py_CLEAR(state->boolop_type);
+    Py_CLEAR(state->cases);
     Py_CLEAR(state->cause);
     Py_CLEAR(state->cmpop_type);
     Py_CLEAR(state->col_offset);
@@ -432,6 +447,7 @@ void _PyAST_Fini(PyInterpreterState *interp)
     Py_CLEAR(state->format_spec);
     Py_CLEAR(state->func);
     Py_CLEAR(state->generators);
+    Py_CLEAR(state->guard);
     Py_CLEAR(state->handlers);
     Py_CLEAR(state->id);
     Py_CLEAR(state->ifs);
@@ -450,6 +466,7 @@ void _PyAST_Fini(PyInterpreterState *interp)
     Py_CLEAR(state->level);
     Py_CLEAR(state->lineno);
     Py_CLEAR(state->lower);
+    Py_CLEAR(state->match_case_type);
     Py_CLEAR(state->mod_type);
     Py_CLEAR(state->module);
     Py_CLEAR(state->msg);
@@ -461,6 +478,8 @@ void _PyAST_Fini(PyInterpreterState *interp)
     Py_CLEAR(state->ops);
     Py_CLEAR(state->optional_vars);
     Py_CLEAR(state->orelse);
+    Py_CLEAR(state->pattern);
+    Py_CLEAR(state->patterns);
     Py_CLEAR(state->posonlyargs);
     Py_CLEAR(state->returns);
     Py_CLEAR(state->right);
@@ -468,6 +487,7 @@ void _PyAST_Fini(PyInterpreterState *interp)
     Py_CLEAR(state->slice);
     Py_CLEAR(state->step);
     Py_CLEAR(state->stmt_type);
+    Py_CLEAR(state->subject);
     Py_CLEAR(state->tag);
     Py_CLEAR(state->target);
     Py_CLEAR(state->targets);
@@ -494,6 +514,7 @@ static int init_identifiers(struct ast_state *state)
 {
     if ((state->__dict__ = PyUnicode_InternFromString("__dict__")) == NULL) return 0;
     if ((state->__doc__ = PyUnicode_InternFromString("__doc__")) == NULL) return 0;
+    if ((state->__match_args__ = PyUnicode_InternFromString("__match_args__")) == NULL) return 0;
     if ((state->__module__ = PyUnicode_InternFromString("__module__")) == NULL) return 0;
     if ((state->_attributes = PyUnicode_InternFromString("_attributes")) == NULL) return 0;
     if ((state->_fields = PyUnicode_InternFromString("_fields")) == NULL) return 0;
@@ -506,6 +527,7 @@ static int init_identifiers(struct ast_state *state)
     if ((state->attr = PyUnicode_InternFromString("attr")) == NULL) return 0;
     if ((state->bases = PyUnicode_InternFromString("bases")) == NULL) return 0;
     if ((state->body = PyUnicode_InternFromString("body")) == NULL) return 0;
+    if ((state->cases = PyUnicode_InternFromString("cases")) == NULL) return 0;
     if ((state->cause = PyUnicode_InternFromString("cause")) == NULL) return 0;
     if ((state->col_offset = PyUnicode_InternFromString("col_offset")) == NULL) return 0;
     if ((state->comparators = PyUnicode_InternFromString("comparators")) == NULL) return 0;
@@ -523,6 +545,7 @@ static int init_identifiers(struct ast_state *state)
     if ((state->format_spec = PyUnicode_InternFromString("format_spec")) == NULL) return 0;
     if ((state->func = PyUnicode_InternFromString("func")) == NULL) return 0;
     if ((state->generators = PyUnicode_InternFromString("generators")) == NULL) return 0;
+    if ((state->guard = PyUnicode_InternFromString("guard")) == NULL) return 0;
     if ((state->handlers = PyUnicode_InternFromString("handlers")) == NULL) return 0;
     if ((state->id = PyUnicode_InternFromString("id")) == NULL) return 0;
     if ((state->ifs = PyUnicode_InternFromString("ifs")) == NULL) return 0;
@@ -549,12 +572,15 @@ static int init_identifiers(struct ast_state *state)
     if ((state->ops = PyUnicode_InternFromString("ops")) == NULL) return 0;
     if ((state->optional_vars = PyUnicode_InternFromString("optional_vars")) == NULL) return 0;
     if ((state->orelse = PyUnicode_InternFromString("orelse")) == NULL) return 0;
+    if ((state->pattern = PyUnicode_InternFromString("pattern")) == NULL) return 0;
+    if ((state->patterns = PyUnicode_InternFromString("patterns")) == NULL) return 0;
     if ((state->posonlyargs = PyUnicode_InternFromString("posonlyargs")) == NULL) return 0;
     if ((state->returns = PyUnicode_InternFromString("returns")) == NULL) return 0;
     if ((state->right = PyUnicode_InternFromString("right")) == NULL) return 0;
     if ((state->simple = PyUnicode_InternFromString("simple")) == NULL) return 0;
     if ((state->slice = PyUnicode_InternFromString("slice")) == NULL) return 0;
     if ((state->step = PyUnicode_InternFromString("step")) == NULL) return 0;
+    if ((state->subject = PyUnicode_InternFromString("subject")) == NULL) return 0;
     if ((state->tag = PyUnicode_InternFromString("tag")) == NULL) return 0;
     if ((state->target = PyUnicode_InternFromString("target")) == NULL) return 0;
     if ((state->targets = PyUnicode_InternFromString("targets")) == NULL) return 0;
@@ -579,6 +605,7 @@ GENERATE_ASDL_SEQ_CONSTRUCTOR(arg, arg_ty)
 GENERATE_ASDL_SEQ_CONSTRUCTOR(keyword, keyword_ty)
 GENERATE_ASDL_SEQ_CONSTRUCTOR(alias, alias_ty)
 GENERATE_ASDL_SEQ_CONSTRUCTOR(withitem, withitem_ty)
+GENERATE_ASDL_SEQ_CONSTRUCTOR(match_case, match_case_ty)
 GENERATE_ASDL_SEQ_CONSTRUCTOR(type_ignore, type_ignore_ty)
 
 static PyObject* ast2obj_mod(struct ast_state *state, void*);
@@ -682,6 +709,10 @@ static const char * const AsyncWith_fields[]={
     "body",
     "type_comment",
 };
+static const char * const Match_fields[]={
+    "subject",
+    "cases",
+};
 static const char * const Raise_fields[]={
     "exc",
     "cause",
@@ -832,6 +863,13 @@ static const char * const Slice_fields[]={
     "upper",
     "step",
 };
+static const char * const MatchAs_fields[]={
+    "pattern",
+    "name",
+};
+static const char * const MatchOr_fields[]={
+    "patterns",
+};
 static PyObject* ast2obj_expr_context(struct ast_state *state, expr_context_ty);
 static PyObject* ast2obj_boolop(struct ast_state *state, boolop_ty);
 static PyObject* ast2obj_operator(struct ast_state *state, operator_ty);
@@ -899,6 +937,12 @@ static const char * const withitem_fields[]={
     "context_expr",
     "optional_vars",
 };
+static PyObject* ast2obj_match_case(struct ast_state *state, void*);
+static const char * const match_case_fields[]={
+    "pattern",
+    "guard",
+    "body",
+};
 static PyObject* ast2obj_type_ignore(struct ast_state *state, void*);
 static const char * const TypeIgnore_fields[]={
     "lineno",
@@ -1089,9 +1133,10 @@ make_type(struct ast_state *state, const char *type, PyObject* base,
         }
         PyTuple_SET_ITEM(fnames, i, field);
     }
-    result = PyObject_CallFunction((PyObject*)&PyType_Type, "s(O){OOOOOs}",
+    result = PyObject_CallFunction((PyObject*)&PyType_Type, "s(O){OOOOOOOs}",
                     type, base,
                     state->_fields, fnames,
+                    state->__match_args__, fnames,
                     state->__module__,
                     state->ast,
                     state->__doc__, doc);
@@ -1222,6 +1267,7 @@ static int add_ast_fields(struct ast_state *state)
     empty_tuple = PyTuple_New(0);
     if (!empty_tuple ||
         PyObject_SetAttrString(state->AST_type, "_fields", empty_tuple) < 0 ||
+        PyObject_SetAttrString(state->AST_type, "__match_args__", empty_tuple) < 0 ||
         PyObject_SetAttrString(state->AST_type, "_attributes", empty_tuple) < 0) {
         Py_XDECREF(empty_tuple);
         return -1;
@@ -1291,6 +1337,7 @@ init_types(struct ast_state *state)
         "     | If(expr test, stmt* body, stmt* orelse)\n"
         "     | With(withitem* items, stmt* body, string? type_comment)\n"
         "     | AsyncWith(withitem* items, stmt* body, string? type_comment)\n"
+        "     | Match(expr subject, match_case* cases)\n"
         "     | Raise(expr? exc, expr? cause)\n"
         "     | Try(stmt* body, excepthandler* handlers, stmt* orelse, stmt* finalbody)\n"
         "     | Assert(expr test, expr? msg)\n"
@@ -1393,6 +1440,10 @@ init_types(struct ast_state *state)
     if (PyObject_SetAttr(state->AsyncWith_type, state->type_comment, Py_None)
         == -1)
         return 0;
+    state->Match_type = make_type(state, "Match", state->stmt_type,
+                                  Match_fields, 2,
+        "Match(expr subject, match_case* cases)");
+    if (!state->Match_type) return 0;
     state->Raise_type = make_type(state, "Raise", state->stmt_type,
                                   Raise_fields, 2,
         "Raise(expr? exc, expr? cause)");
@@ -1471,7 +1522,9 @@ init_types(struct ast_state *state)
         "     | Name(identifier id, expr_context ctx)\n"
         "     | List(expr* elts, expr_context ctx)\n"
         "     | Tuple(expr* elts, expr_context ctx)\n"
-        "     | Slice(expr? lower, expr? upper, expr? step)");
+        "     | Slice(expr? lower, expr? upper, expr? step)\n"
+        "     | MatchAs(expr pattern, identifier name)\n"
+        "     | MatchOr(expr* patterns)");
     if (!state->expr_type) return 0;
     if (!add_attributes(state, state->expr_type, expr_attributes, 4)) return 0;
     if (PyObject_SetAttr(state->expr_type, state->end_lineno, Py_None) == -1)
@@ -1604,6 +1657,14 @@ init_types(struct ast_state *state)
         return 0;
     if (PyObject_SetAttr(state->Slice_type, state->step, Py_None) == -1)
         return 0;
+    state->MatchAs_type = make_type(state, "MatchAs", state->expr_type,
+                                    MatchAs_fields, 2,
+        "MatchAs(expr pattern, identifier name)");
+    if (!state->MatchAs_type) return 0;
+    state->MatchOr_type = make_type(state, "MatchOr", state->expr_type,
+                                    MatchOr_fields, 1,
+        "MatchOr(expr* patterns)");
+    if (!state->MatchOr_type) return 0;
     state->expr_context_type = make_type(state, "expr_context",
                                          state->AST_type, NULL, 0,
         "expr_context = Load | Store | Del");
@@ -1910,6 +1971,13 @@ init_types(struct ast_state *state)
     if (PyObject_SetAttr(state->withitem_type, state->optional_vars, Py_None)
         == -1)
         return 0;
+    state->match_case_type = make_type(state, "match_case", state->AST_type,
+                                       match_case_fields, 3,
+        "match_case(expr pattern, expr? guard, stmt* body)");
+    if (!state->match_case_type) return 0;
+    if (!add_attributes(state, state->match_case_type, NULL, 0)) return 0;
+    if (PyObject_SetAttr(state->match_case_type, state->guard, Py_None) == -1)
+        return 0;
     state->type_ignore_type = make_type(state, "type_ignore", state->AST_type,
                                         NULL, 0,
         "type_ignore = TypeIgnore(int lineno, string tag)");
@@ -1955,6 +2023,8 @@ static int obj2ast_alias(struct ast_state *state, PyObject* obj, alias_ty* out,
                          PyArena* arena);
 static int obj2ast_withitem(struct ast_state *state, PyObject* obj,
                             withitem_ty* out, PyArena* arena);
+static int obj2ast_match_case(struct ast_state *state, PyObject* obj,
+                              match_case_ty* out, PyArena* arena);
 static int obj2ast_type_ignore(struct ast_state *state, PyObject* obj,
                                type_ignore_ty* out, PyArena* arena);
 
@@ -2389,6 +2459,29 @@ AsyncWith(asdl_withitem_seq * items, asdl_stmt_seq * body, string type_comment,
 }
 
 stmt_ty
+Match(expr_ty subject, asdl_match_case_seq * cases, int lineno, int col_offset,
+      int end_lineno, int end_col_offset, PyArena *arena)
+{
+    stmt_ty p;
+    if (!subject) {
+        PyErr_SetString(PyExc_ValueError,
+                        "field 'subject' is required for Match");
+        return NULL;
+    }
+    p = (stmt_ty)PyArena_Malloc(arena, sizeof(*p));
+    if (!p)
+        return NULL;
+    p->kind = Match_kind;
+    p->v.Match.subject = subject;
+    p->v.Match.cases = cases;
+    p->lineno = lineno;
+    p->col_offset = col_offset;
+    p->end_lineno = end_lineno;
+    p->end_col_offset = end_col_offset;
+    return p;
+}
+
+stmt_ty
 Raise(expr_ty exc, expr_ty cause, int lineno, int col_offset, int end_lineno,
       int end_col_offset, PyArena *arena)
 {
@@ -3263,6 +3356,51 @@ Slice(expr_ty lower, expr_ty upper, expr_ty step, int lineno, int col_offset,
     return p;
 }
 
+expr_ty
+MatchAs(expr_ty pattern, identifier name, int lineno, int col_offset, int
+        end_lineno, int end_col_offset, PyArena *arena)
+{
+    expr_ty p;
+    if (!pattern) {
+        PyErr_SetString(PyExc_ValueError,
+                        "field 'pattern' is required for MatchAs");
+        return NULL;
+    }
+    if (!name) {
+        PyErr_SetString(PyExc_ValueError,
+                        "field 'name' is required for MatchAs");
+        return NULL;
+    }
+    p = (expr_ty)PyArena_Malloc(arena, sizeof(*p));
+    if (!p)
+        return NULL;
+    p->kind = MatchAs_kind;
+    p->v.MatchAs.pattern = pattern;
+    p->v.MatchAs.name = name;
+    p->lineno = lineno;
+    p->col_offset = col_offset;
+    p->end_lineno = end_lineno;
+    p->end_col_offset = end_col_offset;
+    return p;
+}
+
+expr_ty
+MatchOr(asdl_expr_seq * patterns, int lineno, int col_offset, int end_lineno,
+        int end_col_offset, PyArena *arena)
+{
+    expr_ty p;
+    p = (expr_ty)PyArena_Malloc(arena, sizeof(*p));
+    if (!p)
+        return NULL;
+    p->kind = MatchOr_kind;
+    p->v.MatchOr.patterns = patterns;
+    p->lineno = lineno;
+    p->col_offset = col_offset;
+    p->end_lineno = end_lineno;
+    p->end_col_offset = end_col_offset;
+    return p;
+}
+
 comprehension_ty
 comprehension(expr_ty target, expr_ty iter, asdl_expr_seq * ifs, int is_async,
               PyArena *arena)
@@ -3406,6 +3544,24 @@ withitem(expr_ty context_expr, expr_ty optional_vars, PyArena *arena)
     return p;
 }
 
+match_case_ty
+match_case(expr_ty pattern, expr_ty guard, asdl_stmt_seq * body, PyArena *arena)
+{
+    match_case_ty p;
+    if (!pattern) {
+        PyErr_SetString(PyExc_ValueError,
+                        "field 'pattern' is required for match_case");
+        return NULL;
+    }
+    p = (match_case_ty)PyArena_Malloc(arena, sizeof(*p));
+    if (!p)
+        return NULL;
+    p->pattern = pattern;
+    p->guard = guard;
+    p->body = body;
+    return p;
+}
+
 type_ignore_ty
 TypeIgnore(int lineno, string tag, PyArena *arena)
 {
@@ -3847,6 +4003,22 @@ ast2obj_stmt(struct ast_state *state, void* _o)
             goto failed;
         Py_DECREF(value);
         break;
+    case Match_kind:
+        tp = (PyTypeObject *)state->Match_type;
+        result = PyType_GenericNew(tp, NULL, NULL);
+        if (!result) goto failed;
+        value = ast2obj_expr(state, o->v.Match.subject);
+        if (!value) goto failed;
+        if (PyObject_SetAttr(result, state->subject, value) == -1)
+            goto failed;
+        Py_DECREF(value);
+        value = ast2obj_list(state, (asdl_seq*)o->v.Match.cases,
+                             ast2obj_match_case);
+        if (!value) goto failed;
+        if (PyObject_SetAttr(result, state->cases, value) == -1)
+            goto failed;
+        Py_DECREF(value);
+        break;
     case Raise_kind:
         tp = (PyTypeObject *)state->Raise_type;
         result = PyType_GenericNew(tp, NULL, NULL);
@@ -4460,6 +4632,32 @@ ast2obj_expr(struct ast_state *state, void* _o)
             goto failed;
         Py_DECREF(value);
         break;
+    case MatchAs_kind:
+        tp = (PyTypeObject *)state->MatchAs_type;
+        result = PyType_GenericNew(tp, NULL, NULL);
+        if (!result) goto failed;
+        value = ast2obj_expr(state, o->v.MatchAs.pattern);
+        if (!value) goto failed;
+        if (PyObject_SetAttr(result, state->pattern, value) == -1)
+            goto failed;
+        Py_DECREF(value);
+        value = ast2obj_identifier(state, o->v.MatchAs.name);
+        if (!value) goto failed;
+        if (PyObject_SetAttr(result, state->name, value) == -1)
+            goto failed;
+        Py_DECREF(value);
+        break;
+    case MatchOr_kind:
+        tp = (PyTypeObject *)state->MatchOr_type;
+        result = PyType_GenericNew(tp, NULL, NULL);
+        if (!result) goto failed;
+        value = ast2obj_list(state, (asdl_seq*)o->v.MatchOr.patterns,
+                             ast2obj_expr);
+        if (!value) goto failed;
+        if (PyObject_SetAttr(result, state->patterns, value) == -1)
+            goto failed;
+        Py_DECREF(value);
+        break;
     }
     value = ast2obj_int(state, o->lineno);
     if (!value) goto failed;
@@ -4928,6 +5126,40 @@ failed:
 }
 
 PyObject*
+ast2obj_match_case(struct ast_state *state, void* _o)
+{
+    match_case_ty o = (match_case_ty)_o;
+    PyObject *result = NULL, *value = NULL;
+    PyTypeObject *tp;
+    if (!o) {
+        Py_RETURN_NONE;
+    }
+    tp = (PyTypeObject *)state->match_case_type;
+    result = PyType_GenericNew(tp, NULL, NULL);
+    if (!result) return NULL;
+    value = ast2obj_expr(state, o->pattern);
+    if (!value) goto failed;
+    if (PyObject_SetAttr(result, state->pattern, value) == -1)
+        goto failed;
+    Py_DECREF(value);
+    value = ast2obj_expr(state, o->guard);
+    if (!value) goto failed;
+    if (PyObject_SetAttr(result, state->guard, value) == -1)
+        goto failed;
+    Py_DECREF(value);
+    value = ast2obj_list(state, (asdl_seq*)o->body, ast2obj_stmt);
+    if (!value) goto failed;
+    if (PyObject_SetAttr(result, state->body, value) == -1)
+        goto failed;
+    Py_DECREF(value);
+    return result;
+failed:
+    Py_XDECREF(value);
+    Py_XDECREF(result);
+    return NULL;
+}
+
+PyObject*
 ast2obj_type_ignore(struct ast_state *state, void* _o)
 {
     type_ignore_ty o = (type_ignore_ty)_o;
@@ -6581,6 +6813,66 @@ obj2ast_stmt(struct ast_state *state, PyObject* obj, stmt_ty* out, PyArena*
         if (*out == NULL) goto failed;
         return 0;
     }
+    tp = state->Match_type;
+    isinstance = PyObject_IsInstance(obj, tp);
+    if (isinstance == -1) {
+        return 1;
+    }
+    if (isinstance) {
+        expr_ty subject;
+        asdl_match_case_seq* cases;
+
+        if (_PyObject_LookupAttr(obj, state->subject, &tmp) < 0) {
+            return 1;
+        }
+        if (tmp == NULL) {
+            PyErr_SetString(PyExc_TypeError, "required field \"subject\" missing from Match");
+            return 1;
+        }
+        else {
+            int res;
+            res = obj2ast_expr(state, tmp, &subject, arena);
+            if (res != 0) goto failed;
+            Py_CLEAR(tmp);
+        }
+        if (_PyObject_LookupAttr(obj, state->cases, &tmp) < 0) {
+            return 1;
+        }
+        if (tmp == NULL) {
+            PyErr_SetString(PyExc_TypeError, "required field \"cases\" missing from Match");
+            return 1;
+        }
+        else {
+            int res;
+            Py_ssize_t len;
+            Py_ssize_t i;
+            if (!PyList_Check(tmp)) {
+                PyErr_Format(PyExc_TypeError, "Match field \"cases\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
+                goto failed;
+            }
+            len = PyList_GET_SIZE(tmp);
+            cases = _Py_asdl_match_case_seq_new(len, arena);
+            if (cases == NULL) goto failed;
+            for (i = 0; i < len; i++) {
+                match_case_ty val;
+                PyObject *tmp2 = PyList_GET_ITEM(tmp, i);
+                Py_INCREF(tmp2);
+                res = obj2ast_match_case(state, tmp2, &val, arena);
+                Py_DECREF(tmp2);
+                if (res != 0) goto failed;
+                if (len != PyList_GET_SIZE(tmp)) {
+                    PyErr_SetString(PyExc_RuntimeError, "Match field \"cases\" changed size during iteration");
+                    goto failed;
+                }
+                asdl_seq_SET(cases, i, val);
+            }
+            Py_CLEAR(tmp);
+        }
+        *out = Match(subject, cases, lineno, col_offset, end_lineno,
+                     end_col_offset, arena);
+        if (*out == NULL) goto failed;
+        return 0;
+    }
     tp = state->Raise_type;
     isinstance = PyObject_IsInstance(obj, tp);
     if (isinstance == -1) {
@@ -8591,6 +8883,92 @@ obj2ast_expr(struct ast_state *state, PyObject* obj, expr_ty* out, PyArena*
         if (*out == NULL) goto failed;
         return 0;
     }
+    tp = state->MatchAs_type;
+    isinstance = PyObject_IsInstance(obj, tp);
+    if (isinstance == -1) {
+        return 1;
+    }
+    if (isinstance) {
+        expr_ty pattern;
+        identifier name;
+
+        if (_PyObject_LookupAttr(obj, state->pattern, &tmp) < 0) {
+            return 1;
+        }
+        if (tmp == NULL) {
+            PyErr_SetString(PyExc_TypeError, "required field \"pattern\" missing from MatchAs");
+            return 1;
+        }
+        else {
+            int res;
+            res = obj2ast_expr(state, tmp, &pattern, arena);
+            if (res != 0) goto failed;
+            Py_CLEAR(tmp);
+        }
+        if (_PyObject_LookupAttr(obj, state->name, &tmp) < 0) {
+            return 1;
+        }
+        if (tmp == NULL) {
+            PyErr_SetString(PyExc_TypeError, "required field \"name\" missing from MatchAs");
+            return 1;
+        }
+        else {
+            int res;
+            res = obj2ast_identifier(state, tmp, &name, arena);
+            if (res != 0) goto failed;
+            Py_CLEAR(tmp);
+        }
+        *out = MatchAs(pattern, name, lineno, col_offset, end_lineno,
+                       end_col_offset, arena);
+        if (*out == NULL) goto failed;
+        return 0;
+    }
+    tp = state->MatchOr_type;
+    isinstance = PyObject_IsInstance(obj, tp);
+    if (isinstance == -1) {
+        return 1;
+    }
+    if (isinstance) {
+        asdl_expr_seq* patterns;
+
+        if (_PyObject_LookupAttr(obj, state->patterns, &tmp) < 0) {
+            return 1;
+        }
+        if (tmp == NULL) {
+            PyErr_SetString(PyExc_TypeError, "required field \"patterns\" missing from MatchOr");
+            return 1;
+        }
+        else {
+            int res;
+            Py_ssize_t len;
+            Py_ssize_t i;
+            if (!PyList_Check(tmp)) {
+                PyErr_Format(PyExc_TypeError, "MatchOr field \"patterns\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
+                goto failed;
+            }
+            len = PyList_GET_SIZE(tmp);
+            patterns = _Py_asdl_expr_seq_new(len, arena);
+            if (patterns == NULL) goto failed;
+            for (i = 0; i < len; i++) {
+                expr_ty val;
+                PyObject *tmp2 = PyList_GET_ITEM(tmp, i);
+                Py_INCREF(tmp2);
+                res = obj2ast_expr(state, tmp2, &val, arena);
+                Py_DECREF(tmp2);
+                if (res != 0) goto failed;
+                if (len != PyList_GET_SIZE(tmp)) {
+                    PyErr_SetString(PyExc_RuntimeError, "MatchOr field \"patterns\" changed size during iteration");
+                    goto failed;
+                }
+                asdl_seq_SET(patterns, i, val);
+            }
+            Py_CLEAR(tmp);
+        }
+        *out = MatchOr(patterns, lineno, col_offset, end_lineno,
+                       end_col_offset, arena);
+        if (*out == NULL) goto failed;
+        return 0;
+    }
 
     PyErr_Format(PyExc_TypeError, "expected some sort of expr, but got %R", obj);
     failed:
@@ -9652,6 +10030,81 @@ failed:
 }
 
 int
+obj2ast_match_case(struct ast_state *state, PyObject* obj, match_case_ty* out,
+                   PyArena* arena)
+{
+    PyObject* tmp = NULL;
+    expr_ty pattern;
+    expr_ty guard;
+    asdl_stmt_seq* body;
+
+    if (_PyObject_LookupAttr(obj, state->pattern, &tmp) < 0) {
+        return 1;
+    }
+    if (tmp == NULL) {
+        PyErr_SetString(PyExc_TypeError, "required field \"pattern\" missing from match_case");
+        return 1;
+    }
+    else {
+        int res;
+        res = obj2ast_expr(state, tmp, &pattern, arena);
+        if (res != 0) goto failed;
+        Py_CLEAR(tmp);
+    }
+    if (_PyObject_LookupAttr(obj, state->guard, &tmp) < 0) {
+        return 1;
+    }
+    if (tmp == NULL || tmp == Py_None) {
+        Py_CLEAR(tmp);
+        guard = NULL;
+    }
+    else {
+        int res;
+        res = obj2ast_expr(state, tmp, &guard, arena);
+        if (res != 0) goto failed;
+        Py_CLEAR(tmp);
+    }
+    if (_PyObject_LookupAttr(obj, state->body, &tmp) < 0) {
+        return 1;
+    }
+    if (tmp == NULL) {
+        PyErr_SetString(PyExc_TypeError, "required field \"body\" missing from match_case");
+        return 1;
+    }
+    else {
+        int res;
+        Py_ssize_t len;
+        Py_ssize_t i;
+        if (!PyList_Check(tmp)) {
+            PyErr_Format(PyExc_TypeError, "match_case field \"body\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
+            goto failed;
+        }
+        len = PyList_GET_SIZE(tmp);
+        body = _Py_asdl_stmt_seq_new(len, arena);
+        if (body == NULL) goto failed;
+        for (i = 0; i < len; i++) {
+            stmt_ty val;
+            PyObject *tmp2 = PyList_GET_ITEM(tmp, i);
+            Py_INCREF(tmp2);
+            res = obj2ast_stmt(state, tmp2, &val, arena);
+            Py_DECREF(tmp2);
+            if (res != 0) goto failed;
+            if (len != PyList_GET_SIZE(tmp)) {
+                PyErr_SetString(PyExc_RuntimeError, "match_case field \"body\" changed size during iteration");
+                goto failed;
+            }
+            asdl_seq_SET(body, i, val);
+        }
+        Py_CLEAR(tmp);
+    }
+    *out = match_case(pattern, guard, body, arena);
+    return 0;
+failed:
+    Py_XDECREF(tmp);
+    return 1;
+}
+
+int
 obj2ast_type_ignore(struct ast_state *state, PyObject* obj, type_ignore_ty*
                     out, PyArena* arena)
 {
@@ -9792,6 +10245,9 @@ astmodule_exec(PyObject *m)
     if (PyModule_AddObjectRef(m, "AsyncWith", state->AsyncWith_type) < 0) {
         return -1;
     }
+    if (PyModule_AddObjectRef(m, "Match", state->Match_type) < 0) {
+        return -1;
+    }
     if (PyModule_AddObjectRef(m, "Raise", state->Raise_type) < 0) {
         return -1;
     }
@@ -9911,6 +10367,12 @@ astmodule_exec(PyObject *m)
     if (PyModule_AddObjectRef(m, "Slice", state->Slice_type) < 0) {
         return -1;
     }
+    if (PyModule_AddObjectRef(m, "MatchAs", state->MatchAs_type) < 0) {
+        return -1;
+    }
+    if (PyModule_AddObjectRef(m, "MatchOr", state->MatchOr_type) < 0) {
+        return -1;
+    }
     if (PyModule_AddObjectRef(m, "expr_context", state->expr_context_type) < 0)
         {
         return -1;
@@ -10050,6 +10512,9 @@ astmodule_exec(PyObject *m)
     if (PyModule_AddObjectRef(m, "withitem", state->withitem_type) < 0) {
         return -1;
     }
+    if (PyModule_AddObjectRef(m, "match_case", state->match_case_type) < 0) {
+        return -1;
+    }
     if (PyModule_AddObjectRef(m, "type_ignore", state->type_ignore_type) < 0) {
         return -1;
     }
diff --git a/Python/ast.c b/Python/ast.c
index 5e74f65..c58b4a6 100644
--- a/Python/ast.c
+++ b/Python/ast.c
@@ -309,6 +309,14 @@ validate_expr(expr_ty exp, expr_context_ty ctx)
         return validate_exprs(exp->v.Tuple.elts, ctx, 0);
     case NamedExpr_kind:
         return validate_expr(exp->v.NamedExpr.value, Load);
+    case MatchAs_kind:
+        PyErr_SetString(PyExc_ValueError,
+                        "MatchAs is only valid in match_case patterns");
+        return 0;
+    case MatchOr_kind:
+        PyErr_SetString(PyExc_ValueError,
+                        "MatchOr is only valid in match_case patterns");
+        return 0;
     /* This last case doesn't have any checking. */
     case Name_kind:
         return 1;
@@ -318,6 +326,13 @@ validate_expr(expr_ty exp, expr_context_ty ctx)
 }
 
 static int
+validate_pattern(expr_ty p)
+{
+    // Coming soon (thanks Batuhan)!
+    return 1;
+}
+
+static int
 _validate_nonempty_seq(asdl_seq *seq, const char *what, const char *owner)
 {
     if (asdl_seq_LEN(seq))
@@ -415,6 +430,20 @@ validate_stmt(stmt_ty stmt)
                 return 0;
         }
         return validate_body(stmt->v.AsyncWith.body, "AsyncWith");
+    case Match_kind:
+        if (!validate_expr(stmt->v.Match.subject, Load)
+            || !validate_nonempty_seq(stmt->v.Match.cases, "cases", "Match")) {
+            return 0;
+        }
+        for (i = 0; i < asdl_seq_LEN(stmt->v.Match.cases); i++) {
+            match_case_ty m = asdl_seq_GET(stmt->v.Match.cases, i);
+            if (!validate_pattern(m->pattern)
+                || (m->guard && !validate_expr(m->guard, Load))
+                || !validate_body(m->body, "match_case")) {
+                return 0;
+            }
+        }
+        return 1;
     case Raise_kind:
         if (stmt->v.Raise.exc) {
             return validate_expr(stmt->v.Raise.exc, Load) &&
diff --git a/Python/ast_opt.c b/Python/ast_opt.c
index 8c958ca..6ad00dc 100644
--- a/Python/ast_opt.c
+++ b/Python/ast_opt.c
@@ -408,6 +408,9 @@ static int astfold_comprehension(comprehension_ty node_, PyArena *ctx_, _PyASTOp
 static int astfold_keyword(keyword_ty node_, PyArena *ctx_, _PyASTOptimizeState *state);
 static int astfold_withitem(withitem_ty node_, PyArena *ctx_, _PyASTOptimizeState *state);
 static int astfold_excepthandler(excepthandler_ty node_, PyArena *ctx_, _PyASTOptimizeState *state);
+static int astfold_match_case(match_case_ty node_, PyArena *ctx_, _PyASTOptimizeState *state);
+static int astfold_pattern(expr_ty node_, PyArena *ctx_, _PyASTOptimizeState *state);
+
 #define CALL(FUNC, TYPE, ARG) \
     if (!FUNC((ARG), ctx_, state)) \
         return 0;
@@ -590,6 +593,10 @@ astfold_expr(expr_ty node_, PyArena *ctx_, _PyASTOptimizeState *state)
     case Constant_kind:
         // Already a constant, nothing further to do
         break;
+    case MatchAs_kind:
+    case MatchOr_kind:
+        // These can't occur outside of patterns.
+        Py_UNREACHABLE();
     // No default case, so the compiler will emit a warning if new expression
     // kinds are added without being handled here
     }
@@ -709,6 +716,10 @@ astfold_stmt(stmt_ty node_, PyArena *ctx_, _PyASTOptimizeState *state)
     case Expr_kind:
         CALL(astfold_expr, expr_ty, node_->v.Expr.value);
         break;
+    case Match_kind:
+        CALL(astfold_expr, expr_ty, node_->v.Match.subject);
+        CALL_SEQ(astfold_match_case, match_case, node_->v.Match.cases);
+        break;
     // The following statements don't contain any subexpressions to be folded
     case Import_kind:
     case ImportFrom_kind:
@@ -746,6 +757,125 @@ astfold_withitem(withitem_ty node_, PyArena *ctx_, _PyASTOptimizeState *state)
     return 1;
 }
 
+static int
+astfold_pattern_negative(expr_ty node_, PyArena *ctx_, _PyASTOptimizeState *state)
+{
+    assert(node_->kind == UnaryOp_kind);
+    assert(node_->v.UnaryOp.op == USub);
+    assert(node_->v.UnaryOp.operand->kind == Constant_kind);
+    PyObject *value = node_->v.UnaryOp.operand->v.Constant.value;
+    assert(PyComplex_CheckExact(value) ||
+           PyFloat_CheckExact(value) ||
+           PyLong_CheckExact(value));
+    PyObject *negated = PyNumber_Negative(value);
+    if (negated == NULL) {
+        return 0;
+    }
+    assert(PyComplex_CheckExact(negated) ||
+           PyFloat_CheckExact(negated) ||
+           PyLong_CheckExact(negated));
+    return make_const(node_, negated, ctx_);
+}
+
+static int
+astfold_pattern_complex(expr_ty node_, PyArena *ctx_, _PyASTOptimizeState *state)
+{
+    expr_ty left = node_->v.BinOp.left;
+    expr_ty right = node_->v.BinOp.right;
+    if (left->kind == UnaryOp_kind) {
+        CALL(astfold_pattern_negative, expr_ty, left);
+    }
+    assert(left->kind = Constant_kind);
+    assert(right->kind = Constant_kind);
+    // LHS must be real, RHS must be imaginary:
+    if (!(PyFloat_CheckExact(left->v.Constant.value) ||
+          PyLong_CheckExact(left->v.Constant.value)) ||
+        !PyComplex_CheckExact(right->v.Constant.value))
+    {
+        // Not actually valid, but it's the compiler's job to complain:
+        return 1;
+    }
+    PyObject *new;
+    if (node_->v.BinOp.op == Add) {
+        new = PyNumber_Add(left->v.Constant.value, right->v.Constant.value);
+    }
+    else {
+        assert(node_->v.BinOp.op == Sub);
+        new = PyNumber_Subtract(left->v.Constant.value, right->v.Constant.value);
+    }
+    if (new == NULL) {
+        return 0;
+    }
+    assert(PyComplex_CheckExact(new));
+    return make_const(node_, new, ctx_);
+}
+
+static int
+astfold_pattern_keyword(keyword_ty node_, PyArena *ctx_, _PyASTOptimizeState *state)
+{
+    CALL(astfold_pattern, expr_ty, node_->value);
+    return 1;
+}
+
+static int
+astfold_pattern(expr_ty node_, PyArena *ctx_, _PyASTOptimizeState *state)
+{
+    // Don't blindly optimize the pattern as an expr; it plays by its own rules!
+    // Currently, this is only used to form complex/negative numeric constants.
+    switch (node_->kind) {
+        case Attribute_kind:
+            break;
+        case BinOp_kind:
+            CALL(astfold_pattern_complex, expr_ty, node_);
+            break;
+        case Call_kind:
+            CALL_SEQ(astfold_pattern, expr, node_->v.Call.args);
+            CALL_SEQ(astfold_pattern_keyword, keyword, node_->v.Call.keywords);
+            break;
+        case Constant_kind:
+            break;
+        case Dict_kind:
+            CALL_SEQ(astfold_pattern, expr, node_->v.Dict.keys);
+            CALL_SEQ(astfold_pattern, expr, node_->v.Dict.values);
+            break;
+        // Not actually valid, but it's the compiler's job to complain:
+        case JoinedStr_kind:
+            break;
+        case List_kind:
+            CALL_SEQ(astfold_pattern, expr, node_->v.List.elts);
+            break;
+        case MatchAs_kind:
+            CALL(astfold_pattern, expr_ty, node_->v.MatchAs.pattern);
+            break;
+        case MatchOr_kind:
+            CALL_SEQ(astfold_pattern, expr, node_->v.MatchOr.patterns);
+            break;
+        case Name_kind:
+            break;
+        case Starred_kind:
+            CALL(astfold_pattern, expr_ty, node_->v.Starred.value);
+            break;
+        case Tuple_kind:
+            CALL_SEQ(astfold_pattern, expr, node_->v.Tuple.elts);
+            break;
+        case UnaryOp_kind:
+            CALL(astfold_pattern_negative, expr_ty, node_);
+            break;
+        default:
+            Py_UNREACHABLE();
+    }
+    return 1;
+}
+
+static int
+astfold_match_case(match_case_ty node_, PyArena *ctx_, _PyASTOptimizeState *state)
+{
+    CALL(astfold_pattern, expr_ty, node_->pattern);
+    CALL_OPT(astfold_expr, expr_ty, node_->guard);
+    CALL_SEQ(astfold_stmt, stmt, node_->body);
+    return 1;
+}
+
 #undef CALL
 #undef CALL_OPT
 #undef CALL_SEQ
diff --git a/Python/ceval.c b/Python/ceval.c
index e1a8f15..7862643 100644
--- a/Python/ceval.c
+++ b/Python/ceval.c
@@ -880,6 +880,230 @@ _Py_CheckRecursiveCall(PyThreadState *tstate, const char *where)
     return 0;
 }
 
+
+// PEP 634: Structural Pattern Matching
+
+
+// Return a tuple of values corresponding to keys, with error checks for
+// duplicate/missing keys.
+static PyObject*
+match_keys(PyThreadState *tstate, PyObject *map, PyObject *keys)
+{
+    assert(PyTuple_CheckExact(keys));
+    Py_ssize_t nkeys = PyTuple_GET_SIZE(keys);
+    if (!nkeys) {
+        // No keys means no items.
+        return PyTuple_New(0);
+    }
+    PyObject *seen = NULL;
+    PyObject *dummy = NULL;
+    PyObject *values = NULL;
+    // We use the two argument form of map.get(key, default) for two reasons:
+    // - Atomically check for a key and get its value without error handling.
+    // - Don't cause key creation or resizing in dict subclasses like
+    //   collections.defaultdict that define __missing__ (or similar).
+    _Py_IDENTIFIER(get);
+    PyObject *get = _PyObject_GetAttrId(map, &PyId_get);
+    if (get == NULL) {
+        goto fail;
+    }
+    seen = PySet_New(NULL);
+    if (seen == NULL) {
+        goto fail;
+    }
+    // dummy = object()
+    dummy = _PyObject_CallNoArg((PyObject *)&PyBaseObject_Type);
+    if (dummy == NULL) {
+        goto fail;
+    }
+    values = PyList_New(0);
+    if (values == NULL) {
+        goto fail;
+    }
+    for (Py_ssize_t i = 0; i < nkeys; i++) {
+        PyObject *key = PyTuple_GET_ITEM(keys, i);
+        if (PySet_Contains(seen, key) || PySet_Add(seen, key)) {
+            if (!_PyErr_Occurred(tstate)) {
+                // Seen it before!
+                _PyErr_Format(tstate, PyExc_ValueError,
+                              "mapping pattern checks duplicate key (%R)", key);
+            }
+            goto fail;
+        }
+        PyObject *value = PyObject_CallFunctionObjArgs(get, key, dummy, NULL);
+        if (value == NULL) {
+            goto fail;
+        }
+        if (value == dummy) {
+            // key not in map!
+            Py_DECREF(value);
+            Py_DECREF(values);
+            // Return None:
+            Py_INCREF(Py_None);
+            values = Py_None;
+            goto done;
+        }
+        PyList_Append(values, value);
+        Py_DECREF(value);
+    }
+    Py_SETREF(values, PyList_AsTuple(values));
+    // Success:
+done:
+    Py_DECREF(get);
+    Py_DECREF(seen);
+    Py_DECREF(dummy);
+    return values;
+fail:
+    Py_XDECREF(get);
+    Py_XDECREF(seen);
+    Py_XDECREF(dummy);
+    Py_XDECREF(values);
+    return NULL;
+}
+
+// Extract a named attribute from the subject, with additional bookkeeping to
+// raise TypeErrors for repeated lookups. On failure, return NULL (with no
+// error set). Use _PyErr_Occurred(tstate) to disambiguate.
+static PyObject*
+match_class_attr(PyThreadState *tstate, PyObject *subject, PyObject *type,
+                 PyObject *name, PyObject *seen)
+{
+    assert(PyUnicode_CheckExact(name));
+    assert(PySet_CheckExact(seen));
+    if (PySet_Contains(seen, name) || PySet_Add(seen, name)) {
+        if (!_PyErr_Occurred(tstate)) {
+            // Seen it before!
+            _PyErr_Format(tstate, PyExc_TypeError,
+                          "%s() got multiple sub-patterns for attribute %R",
+                          ((PyTypeObject*)type)->tp_name, name);
+        }
+        return NULL;
+    }
+    PyObject *attr = PyObject_GetAttr(subject, name);
+    if (attr == NULL && _PyErr_ExceptionMatches(tstate, PyExc_AttributeError)) {
+        _PyErr_Clear(tstate);
+    }
+    return attr;
+}
+
+// On success (match), return a tuple of extracted attributes. On failure (no
+// match), return NULL. Use _PyErr_Occurred(tstate) to disambiguate.
+static PyObject*
+match_class(PyThreadState *tstate, PyObject *subject, PyObject *type,
+            Py_ssize_t nargs, PyObject *kwargs)
+{
+    if (!PyType_Check(type)) {
+        const char *e = "called match pattern must be a type";
+        _PyErr_Format(tstate, PyExc_TypeError, e);
+        return NULL;
+    }
+    assert(PyTuple_CheckExact(kwargs));
+    // First, an isinstance check:
+    if (PyObject_IsInstance(subject, type) <= 0) {
+        return NULL;
+    }
+    // So far so good:
+    PyObject *seen = PySet_New(NULL);
+    if (seen == NULL) {
+        return NULL;
+    }
+    PyObject *attrs = PyList_New(0);
+    if (attrs == NULL) {
+        Py_DECREF(seen);
+        return NULL;
+    }
+    // NOTE: From this point on, goto fail on failure:
+    PyObject *match_args = NULL;
+    // First, the positional subpatterns:
+    if (nargs) {
+        int match_self = 0;
+        match_args = PyObject_GetAttrString(type, "__match_args__");
+        if (match_args) {
+            if (PyList_CheckExact(match_args)) {
+                Py_SETREF(match_args, PyList_AsTuple(match_args));
+            }
+            if (match_args == NULL) {
+                goto fail;
+            }
+            if (!PyTuple_CheckExact(match_args)) {
+                const char *e = "%s.__match_args__ must be a list or tuple "
+                                "(got %s)";
+                _PyErr_Format(tstate, PyExc_TypeError, e,
+                              ((PyTypeObject *)type)->tp_name,
+                              Py_TYPE(match_args)->tp_name);
+                goto fail;
+            }
+        }
+        else if (_PyErr_ExceptionMatches(tstate, PyExc_AttributeError)) {
+            _PyErr_Clear(tstate);
+            // _Py_TPFLAGS_MATCH_SELF is only acknowledged if the type does not
+            // define __match_args__. This is natural behavior for subclasses:
+            // it's as if __match_args__ is some "magic" value that is lost as
+            // soon as they redefine it.
+            match_args = PyTuple_New(0);
+            match_self = PyType_HasFeature((PyTypeObject*)type,
+                                            _Py_TPFLAGS_MATCH_SELF);
+        }
+        else {
+            goto fail;
+        }
+        assert(PyTuple_CheckExact(match_args));
+        Py_ssize_t allowed = match_self ? 1 : PyTuple_GET_SIZE(match_args);
+        if (allowed < nargs) {
+            const char *plural = (allowed == 1) ? "" : "s";
+            _PyErr_Format(tstate, PyExc_TypeError,
+                          "%s() accepts %d positional sub-pattern%s (%d given)",
+                          ((PyTypeObject*)type)->tp_name,
+                          allowed, plural, nargs);
+            goto fail;
+        }
+        if (match_self) {
+            // Easy. Copy the subject itself, and move on to kwargs.
+            PyList_Append(attrs, subject);
+        }
+        else {
+            for (Py_ssize_t i = 0; i < nargs; i++) {
+                PyObject *name = PyTuple_GET_ITEM(match_args, i);
+                if (!PyUnicode_CheckExact(name)) {
+                    _PyErr_Format(tstate, PyExc_TypeError,
+                                  "__match_args__ elements must be strings "
+                                  "(got %s)", Py_TYPE(name)->tp_name);
+                    goto fail;
+                }
+                PyObject *attr = match_class_attr(tstate, subject, type, name,
+                                                  seen);
+                if (attr == NULL) {
+                    goto fail;
+                }
+                PyList_Append(attrs, attr);
+                Py_DECREF(attr);
+            }
+        }
+        Py_CLEAR(match_args);
+    }
+    // Finally, the keyword subpatterns:
+    for (Py_ssize_t i = 0; i < PyTuple_GET_SIZE(kwargs); i++) {
+        PyObject *name = PyTuple_GET_ITEM(kwargs, i);
+        PyObject *attr = match_class_attr(tstate, subject, type, name, seen);
+        if (attr == NULL) {
+            goto fail;
+        }
+        PyList_Append(attrs, attr);
+        Py_DECREF(attr);
+    }
+    Py_SETREF(attrs, PyList_AsTuple(attrs));
+    Py_DECREF(seen);
+    return attrs;
+fail:
+    // We really don't care whether an error was raised or not... that's our
+    // caller's problem. All we know is that the match failed.
+    Py_XDECREF(match_args);
+    Py_DECREF(seen);
+    Py_DECREF(attrs);
+    return NULL;
+}
+
+
 static int do_raise(PyThreadState *tstate, PyObject *exc, PyObject *cause);
 static int unpack_iterable(PyThreadState *, PyObject *, int, int, PyObject **);
 
@@ -3618,6 +3842,164 @@ main_loop:
 #endif
         }
 
+        case TARGET(GET_LEN): {
+            // PUSH(len(TOS))
+            Py_ssize_t len_i = PyObject_Length(TOP());
+            if (len_i < 0) {
+                goto error;
+            }
+            PyObject *len_o = PyLong_FromSsize_t(len_i);
+            if (len_o == NULL) {
+                goto error;
+            }
+            PUSH(len_o);
+            DISPATCH();
+        }
+
+        case TARGET(MATCH_CLASS): {
+            // Pop TOS. On success, set TOS to True and TOS1 to a tuple of
+            // attributes. On failure, set TOS to False.
+            PyObject *names = POP();
+            PyObject *type = TOP();
+            PyObject *subject = SECOND();
+            assert(PyTuple_CheckExact(names));
+            PyObject *attrs = match_class(tstate, subject, type, oparg, names);
+            Py_DECREF(names);
+            if (attrs) {
+                // Success!
+                assert(PyTuple_CheckExact(attrs));
+                Py_DECREF(subject);
+                SET_SECOND(attrs);
+            }
+            else if (_PyErr_Occurred(tstate)) {
+                goto error;
+            }
+            Py_DECREF(type);
+            SET_TOP(PyBool_FromLong(!!attrs));
+            DISPATCH();
+        }
+
+        case TARGET(MATCH_MAPPING): {
+            // PUSH(isinstance(TOS, _collections_abc.Mapping))
+            PyObject *subject = TOP();
+            // Fast path for dicts:
+            if (PyDict_Check(subject)) {
+                Py_INCREF(Py_True);
+                PUSH(Py_True);
+                DISPATCH();
+            }
+            // Lazily import _collections_abc.Mapping, and keep it handy on the
+            // PyInterpreterState struct (it gets cleaned up at exit):
+            PyInterpreterState *interp = PyInterpreterState_Get();
+            if (interp->map_abc == NULL) {
+                PyObject *abc = PyImport_ImportModule("_collections_abc");
+                if (abc == NULL) {
+                    goto error;
+                }
+                interp->map_abc = PyObject_GetAttrString(abc, "Mapping");
+                if (interp->map_abc == NULL) {
+                    goto error;
+                }
+            }
+            int match = PyObject_IsInstance(subject, interp->map_abc);
+            if (match < 0) {
+                goto error;
+            }
+            PUSH(PyBool_FromLong(match));
+            DISPATCH();
+        }
+
+        case TARGET(MATCH_SEQUENCE): {
+            // PUSH(not isinstance(TOS, (bytearray, bytes, str))
+            //      and isinstance(TOS, _collections_abc.Sequence))
+            PyObject *subject = TOP();
+            // Fast path for lists and tuples:
+            if (PyType_FastSubclass(Py_TYPE(subject),
+                                    Py_TPFLAGS_LIST_SUBCLASS |
+                                    Py_TPFLAGS_TUPLE_SUBCLASS))
+            {
+                Py_INCREF(Py_True);
+                PUSH(Py_True);
+                DISPATCH();
+            }
+            // Bail on some possible Sequences that we intentionally exclude:
+            if (PyType_FastSubclass(Py_TYPE(subject),
+                                    Py_TPFLAGS_BYTES_SUBCLASS |
+                                    Py_TPFLAGS_UNICODE_SUBCLASS) ||
+                PyByteArray_Check(subject))
+            {
+                Py_INCREF(Py_False);
+                PUSH(Py_False);
+                DISPATCH();
+            }
+            // Lazily import _collections_abc.Sequence, and keep it handy on the
+            // PyInterpreterState struct (it gets cleaned up at exit):
+            PyInterpreterState *interp = PyInterpreterState_Get();
+            if (interp->seq_abc == NULL) {
+                PyObject *abc = PyImport_ImportModule("_collections_abc");
+                if (abc == NULL) {
+                    goto error;
+                }
+                interp->seq_abc = PyObject_GetAttrString(abc, "Sequence");
+                if (interp->seq_abc == NULL) {
+                    goto error;
+                }
+            }
+            int match = PyObject_IsInstance(subject, interp->seq_abc);
+            if (match < 0) {
+                goto error;
+            }
+            PUSH(PyBool_FromLong(match));
+            DISPATCH();
+        }
+
+        case TARGET(MATCH_KEYS): {
+            // On successful match for all keys, PUSH(values) and PUSH(True).
+            // Otherwise, PUSH(None) and PUSH(False).
+            PyObject *keys = TOP();
+            PyObject *subject = SECOND();
+            PyObject *values_or_none = match_keys(tstate, subject, keys);
+            if (values_or_none == NULL) {
+                goto error;
+            }
+            PUSH(values_or_none);
+            if (values_or_none == Py_None) {
+                Py_INCREF(Py_False);
+                PUSH(Py_False);
+                DISPATCH();
+            }
+            assert(PyTuple_CheckExact(values_or_none));
+            Py_INCREF(Py_True);
+            PUSH(Py_True);
+            DISPATCH();
+        }
+
+        case TARGET(COPY_DICT_WITHOUT_KEYS): {
+            // rest = dict(TOS1)
+            // for key in TOS:
+            //     del rest[key]
+            // SET_TOP(rest)
+            PyObject *keys = TOP();
+            PyObject *subject = SECOND();
+            PyObject *rest = PyDict_New();
+            if (rest == NULL || PyDict_Update(rest, subject)) {
+                Py_XDECREF(rest);
+                goto error;
+            }
+            // This may seem a bit inefficient, but keys is rarely big enough to
+            // actually impact runtime.
+            assert(PyTuple_CheckExact(keys));
+            for (Py_ssize_t i = 0; i < PyTuple_GET_SIZE(keys); i++) {
+                if (PyDict_DelItem(rest, PyTuple_GET_ITEM(keys, i))) {
+                    Py_DECREF(rest);
+                    goto error;
+                }
+            }
+            Py_DECREF(keys);
+            SET_TOP(rest);
+            DISPATCH();
+        }
+
         case TARGET(GET_ITER): {
             /* before: [obj]; after [getiter(obj)] */
             PyObject *iterable = TOP();
diff --git a/Python/compile.c b/Python/compile.c
index 386c552..454005e 100644
--- a/Python/compile.c
+++ b/Python/compile.c
@@ -202,6 +202,11 @@ struct compiler {
     PyArena *c_arena;            /* pointer to memory allocation arena */
 };
 
+typedef struct {
+    PyObject *stores;
+    int allow_irrefutable;
+} pattern_context;
+
 static int compiler_enter_scope(struct compiler *, identifier, int, void *, int);
 static void compiler_free(struct compiler *);
 static basicblock *compiler_new_block(struct compiler *);
@@ -210,7 +215,7 @@ static int compiler_addop(struct compiler *, int);
 static int compiler_addop_i(struct compiler *, int, Py_ssize_t);
 static int compiler_addop_j(struct compiler *, int, basicblock *);
 static int compiler_addop_j_noline(struct compiler *, int, basicblock *);
-static int compiler_error(struct compiler *, const char *);
+static int compiler_error(struct compiler *, const char *, ...);
 static int compiler_warn(struct compiler *, const char *, ...);
 static int compiler_nameop(struct compiler *, identifier, expr_context_ty);
 
@@ -248,6 +253,11 @@ static int compiler_async_comprehension_generator(
                                       int depth,
                                       expr_ty elt, expr_ty val, int type);
 
+static int compiler_pattern(struct compiler *, expr_ty, pattern_context *);
+static int compiler_match(struct compiler *, stmt_ty);
+static int compiler_pattern_subpattern(struct compiler *, expr_ty,
+                                       pattern_context *);
+
 static PyCodeObject *assemble(struct compiler *, int addNone);
 static PyObject *__doc__, *__annotations__;
 
@@ -1150,6 +1160,16 @@ stack_effect(int opcode, int oparg, int jump)
         case DICT_MERGE:
         case DICT_UPDATE:
             return -1;
+        case COPY_DICT_WITHOUT_KEYS:
+            return 0;
+        case MATCH_CLASS:
+            return -1;
+        case GET_LEN:
+        case MATCH_MAPPING:
+        case MATCH_SEQUENCE:
+            return 1;
+        case MATCH_KEYS:
+            return 2;
         default:
             return PY_INVALID_STACK_EFFECT;
     }
@@ -1580,6 +1600,11 @@ compiler_addop_j_noline(struct compiler *c, int opcode, basicblock *b)
     } \
 }
 
+#define RETURN_IF_FALSE(X)  \
+    if (!(X)) {             \
+        return 0;           \
+    }
+
 /* Search if variable annotations are present statically in a block. */
 
 static int
@@ -3414,6 +3439,8 @@ compiler_visit_stmt(struct compiler *c, stmt_ty s)
         return compiler_while(c, s);
     case If_kind:
         return compiler_if(c, s);
+    case Match_kind:
+        return compiler_match(c, s);
     case Raise_kind:
         n = 0;
         if (s->v.Raise.exc) {
@@ -3758,12 +3785,11 @@ starunpack_helper(struct compiler *c, asdl_expr_seq *elts, int pushed,
 }
 
 static int
-assignment_helper(struct compiler *c, asdl_expr_seq *elts)
+unpack_helper(struct compiler *c, asdl_expr_seq *elts)
 {
     Py_ssize_t n = asdl_seq_LEN(elts);
-    Py_ssize_t i;
     int seen_star = 0;
-    for (i = 0; i < n; i++) {
+    for (Py_ssize_t i = 0; i < n; i++) {
         expr_ty elt = asdl_seq_GET(elts, i);
         if (elt->kind == Starred_kind && !seen_star) {
             if ((i >= (1 << 8)) ||
@@ -3782,7 +3808,15 @@ assignment_helper(struct compiler *c, asdl_expr_seq *elts)
     if (!seen_star) {
         ADDOP_I(c, UNPACK_SEQUENCE, n);
     }
-    for (i = 0; i < n; i++) {
+    return 1;
+}
+
+static int
+assignment_helper(struct compiler *c, asdl_expr_seq *elts)
+{
+    Py_ssize_t n = asdl_seq_LEN(elts);
+    RETURN_IF_FALSE(unpack_helper(c, elts));
+    for (Py_ssize_t i = 0; i < n; i++) {
         expr_ty elt = asdl_seq_GET(elts, i);
         VISIT(c, expr, elt->kind != Starred_kind ? elt : elt->v.Starred.value);
     }
@@ -4132,13 +4166,8 @@ validate_keywords(struct compiler *c, asdl_keyword_seq *keywords)
         for (Py_ssize_t j = i + 1; j < nkeywords; j++) {
             keyword_ty other = ((keyword_ty)asdl_seq_GET(keywords, j));
             if (other->arg && !PyUnicode_Compare(key->arg, other->arg)) {
-                PyObject *msg = PyUnicode_FromFormat("keyword argument repeated: %U", key->arg);
-                if (msg == NULL) {
-                    return -1;
-                }
                 c->u->u_col_offset = other->col_offset;
-                compiler_error(c, PyUnicode_AsUTF8(msg));
-                Py_DECREF(msg);
+                compiler_error(c, "keyword argument repeated: %U", key->arg);
                 return -1;
             }
         }
@@ -5119,6 +5148,10 @@ compiler_visit_expr1(struct compiler *c, expr_ty e)
         return compiler_list(c, e);
     case Tuple_kind:
         return compiler_tuple(c, e);
+    case MatchAs_kind:
+    case MatchOr_kind:
+        // Can only occur in patterns, which are handled elsewhere.
+        Py_UNREACHABLE();
     }
     return 1;
 }
@@ -5305,28 +5338,34 @@ compiler_annassign(struct compiler *c, stmt_ty s)
 */
 
 static int
-compiler_error(struct compiler *c, const char *errstr)
+compiler_error(struct compiler *c, const char *format, ...)
 {
-    PyObject *loc;
-    PyObject *u = NULL, *v = NULL;
-
-    loc = PyErr_ProgramTextObject(c->c_filename, c->u->u_lineno);
-    if (!loc) {
+    va_list vargs;
+#ifdef HAVE_STDARG_PROTOTYPES
+    va_start(vargs, format);
+#else
+    va_start(vargs);
+#endif
+    PyObject *msg = PyUnicode_FromFormatV(format, vargs);
+    va_end(vargs);
+    if (msg == NULL) {
+        return 0;
+    }
+    PyObject *loc = PyErr_ProgramTextObject(c->c_filename, c->u->u_lineno);
+    if (loc == NULL) {
         Py_INCREF(Py_None);
         loc = Py_None;
     }
-    u = Py_BuildValue("(OiiO)", c->c_filename, c->u->u_lineno,
-                      c->u->u_col_offset + 1, loc);
-    if (!u)
-        goto exit;
-    v = Py_BuildValue("(zO)", errstr, u);
-    if (!v)
+    PyObject *args = Py_BuildValue("O(OiiO)", msg, c->c_filename,
+                                   c->u->u_lineno, c->u->u_col_offset + 1, loc);
+    Py_DECREF(msg);
+    if (args == NULL) {
         goto exit;
-    PyErr_SetObject(PyExc_SyntaxError, v);
+    }
+    PyErr_SetObject(PyExc_SyntaxError, args);
  exit:
     Py_DECREF(loc);
-    Py_XDECREF(u);
-    Py_XDECREF(v);
+    Py_XDECREF(args);
     return 0;
 }
 
@@ -5421,6 +5460,654 @@ compiler_slice(struct compiler *c, expr_ty s)
     return 1;
 }
 
+
+// PEP 634: Structural Pattern Matching
+
+// To keep things simple, all compiler_pattern_* routines follow the convention
+// of replacing TOS (the subject for the given pattern) with either True (match)
+// or False (no match). We do this even for irrefutable patterns; the idea is
+// that it's much easier to smooth out any redundant pushing, popping, and
+// jumping in the peephole optimizer than to detect or predict it here.
+
+
+#define WILDCARD_CHECK(N) \
+    ((N)->kind == Name_kind && \
+    _PyUnicode_EqualToASCIIString((N)->v.Name.id, "_"))
+
+
+static int
+pattern_helper_store_name(struct compiler *c, identifier n, pattern_context *pc)
+{
+    assert(!_PyUnicode_EqualToASCIIString(n, "_"));
+    // Can't assign to the same name twice:
+    if (pc->stores == NULL) {
+        RETURN_IF_FALSE(pc->stores = PySet_New(NULL));
+    }
+    else {
+        int duplicate = PySet_Contains(pc->stores, n);
+        if (duplicate < 0) {
+            return 0;
+        }
+        if (duplicate) {
+            const char *e = "multiple assignments to name %R in pattern";
+            return compiler_error(c, e, n);
+        }
+    }
+    RETURN_IF_FALSE(!PySet_Add(pc->stores, n));
+    RETURN_IF_FALSE(compiler_nameop(c, n, Store));
+    return 1;
+}
+
+
+static int
+pattern_helper_sequence_unpack(struct compiler *c, asdl_expr_seq *values,
+                               Py_ssize_t star, pattern_context *pc)
+{
+    RETURN_IF_FALSE(unpack_helper(c, values));
+    // We've now got a bunch of new subjects on the stack. If any of them fail
+    // to match, we need to pop everything else off, then finally push False.
+    // fails is an array of blocks that correspond to the necessary amount of
+    // popping for each element:
+    basicblock **fails;
+    Py_ssize_t size = asdl_seq_LEN(values);
+    fails = (basicblock **)PyObject_Malloc(sizeof(basicblock*) * size);
+    if (fails == NULL) {
+        PyErr_NoMemory();
+        return 0;
+    }
+    // NOTE: Can't use our nice returning macros anymore: they'll leak memory!
+    // goto error on error.
+    for (Py_ssize_t i = 0; i < size; i++) {
+        fails[i] = compiler_new_block(c);
+        if (fails[i] == NULL) {
+            goto error;
+        }
+    }
+    for (Py_ssize_t i = 0; i < size; i++) {
+        expr_ty value = asdl_seq_GET(values, i);
+        if (i == star) {
+            assert(value->kind == Starred_kind);
+            value = value->v.Starred.value;
+        }
+        if (!compiler_pattern_subpattern(c, value, pc) ||
+            !compiler_addop_j(c, POP_JUMP_IF_FALSE, fails[i]) ||
+            compiler_next_block(c) == NULL)
+        {
+            goto error;
+        }
+    }
+    // Success!
+    basicblock *end = compiler_new_block(c);
+    if (end == NULL ||
+        !compiler_addop_load_const(c, Py_True) ||
+        !compiler_addop_j(c, JUMP_FORWARD, end))
+    {
+        goto error;
+    }
+    // This is where we handle failed sub-patterns. For a sequence pattern like
+    // [a, b, c, d], this will look like:
+    // fails[0]: POP_TOP
+    // fails[1]: POP_TOP
+    // fails[2]: POP_TOP
+    // fails[3]: LOAD_CONST False
+    for (Py_ssize_t i = 0; i < size - 1; i++) {
+        compiler_use_next_block(c, fails[i]);
+        if (!compiler_addop(c, POP_TOP)) {
+            goto error;
+        }
+    }
+    compiler_use_next_block(c, fails[size - 1]);
+    if (!compiler_addop_load_const(c, Py_False)) {
+        goto error;
+    }
+    compiler_use_next_block(c, end);
+    PyObject_Free(fails);
+    return 1;
+error:
+    PyObject_Free(fails);
+    return 0;
+}
+
+// Like pattern_helper_sequence_unpack, but uses BINARY_SUBSCR instead of
+// UNPACK_SEQUENCE / UNPACK_EX. This is more efficient for patterns with a
+// starred wildcard like [first, *_] / [first, *_, last] / [*_, last] / etc.
+static int
+pattern_helper_sequence_subscr(struct compiler *c, asdl_expr_seq *values,
+                               Py_ssize_t star, pattern_context *pc)
+{
+    basicblock *end, *fail_pop_1;
+    RETURN_IF_FALSE(end = compiler_new_block(c));
+    RETURN_IF_FALSE(fail_pop_1 = compiler_new_block(c));
+    Py_ssize_t size = asdl_seq_LEN(values);
+    for (Py_ssize_t i = 0; i < size; i++) {
+        expr_ty value = asdl_seq_GET(values, i);
+        if (WILDCARD_CHECK(value)) {
+            continue;
+        }
+        if (i == star) {
+            assert(value->kind == Starred_kind);
+            assert(WILDCARD_CHECK(value->v.Starred.value));
+            continue;
+        }
+        ADDOP(c, DUP_TOP);
+        if (i < star) {
+            ADDOP_LOAD_CONST_NEW(c, PyLong_FromSsize_t(i));
+        }
+        else {
+            // The subject may not support negative indexing! Compute a
+            // nonnegative index:
+            ADDOP(c, GET_LEN);
+            ADDOP_LOAD_CONST_NEW(c, PyLong_FromSsize_t(size - i));
+            ADDOP(c, BINARY_SUBTRACT);
+        }
+        ADDOP(c, BINARY_SUBSCR);
+        RETURN_IF_FALSE(compiler_pattern_subpattern(c, value, pc));
+        ADDOP_JUMP(c, POP_JUMP_IF_FALSE, fail_pop_1);
+        NEXT_BLOCK(c);
+    }
+    ADDOP(c, POP_TOP);
+    ADDOP_LOAD_CONST(c, Py_True);
+    ADDOP_JUMP(c, JUMP_FORWARD, end);
+    compiler_use_next_block(c, fail_pop_1);
+    ADDOP(c, POP_TOP);
+    ADDOP_LOAD_CONST(c, Py_False);
+    compiler_use_next_block(c, end);
+    return 1;
+}
+
+
+// Like compiler_pattern, but turn off checks for irrefutability.
+static int
+compiler_pattern_subpattern(struct compiler *c, expr_ty p, pattern_context *pc)
+{
+    int allow_irrefutable = pc->allow_irrefutable;
+    pc->allow_irrefutable = 1;
+    RETURN_IF_FALSE(compiler_pattern(c, p, pc));
+    pc->allow_irrefutable = allow_irrefutable;
+    return 1;
+}
+
+
+static int
+compiler_pattern_as(struct compiler *c, expr_ty p, pattern_context *pc)
+{
+    assert(p->kind == MatchAs_kind);
+    basicblock *end, *fail_pop_1;
+    RETURN_IF_FALSE(end = compiler_new_block(c));
+    RETURN_IF_FALSE(fail_pop_1 = compiler_new_block(c));
+    // Need to make a copy for (possibly) storing later:
+    ADDOP(c, DUP_TOP);
+    RETURN_IF_FALSE(compiler_pattern(c, p->v.MatchAs.pattern, pc));
+    ADDOP_JUMP(c, POP_JUMP_IF_FALSE, fail_pop_1);
+    NEXT_BLOCK(c);
+    RETURN_IF_FALSE(pattern_helper_store_name(c, p->v.MatchAs.name, pc));
+    ADDOP_LOAD_CONST(c, Py_True);
+    ADDOP_JUMP(c, JUMP_FORWARD, end);
+    compiler_use_next_block(c, fail_pop_1);
+    // Need to pop that unused copy from before:
+    ADDOP(c, POP_TOP);
+    ADDOP_LOAD_CONST(c, Py_False);
+    compiler_use_next_block(c, end);
+    return 1;
+}
+
+
+static int
+compiler_pattern_capture(struct compiler *c, expr_ty p, pattern_context *pc)
+{
+    assert(p->kind == Name_kind);
+    assert(p->v.Name.ctx == Store);
+    assert(!WILDCARD_CHECK(p));
+    if (!pc->allow_irrefutable) {
+        // Whoops, can't have a name capture here!
+        const char *e = "name capture %R makes remaining patterns unreachable";
+        return compiler_error(c, e, p->v.Name.id);
+    }
+    RETURN_IF_FALSE(pattern_helper_store_name(c, p->v.Name.id, pc));
+    ADDOP_LOAD_CONST(c, Py_True);
+    return 1;
+}
+
+
+static int
+compiler_pattern_class(struct compiler *c, expr_ty p, pattern_context *pc)
+{
+    asdl_expr_seq *args = p->v.Call.args;
+    asdl_keyword_seq *kwargs = p->v.Call.keywords;
+    Py_ssize_t nargs = asdl_seq_LEN(args);
+    Py_ssize_t nkwargs = asdl_seq_LEN(kwargs);
+    if (INT_MAX < nargs || INT_MAX < nargs + nkwargs - 1) {
+        const char *e = "too many sub-patterns in class pattern %R";
+        return compiler_error(c, e, p->v.Call.func);
+    }
+    RETURN_IF_FALSE(!validate_keywords(c, kwargs));
+    basicblock *end, *fail_pop_1;
+    RETURN_IF_FALSE(end = compiler_new_block(c));
+    RETURN_IF_FALSE(fail_pop_1 = compiler_new_block(c));
+    VISIT(c, expr, p->v.Call.func);
+    PyObject *kwnames;
+    RETURN_IF_FALSE(kwnames = PyTuple_New(nkwargs));
+    Py_ssize_t i;
+    for (i = 0; i < nkwargs; i++) {
+        PyObject *name = ((keyword_ty) asdl_seq_GET(kwargs, i))->arg;
+        Py_INCREF(name);
+        PyTuple_SET_ITEM(kwnames, i, name);
+    }
+    ADDOP_LOAD_CONST_NEW(c, kwnames);
+    ADDOP_I(c, MATCH_CLASS, nargs);
+    ADDOP_JUMP(c, POP_JUMP_IF_FALSE, fail_pop_1);
+    NEXT_BLOCK(c);
+    // TOS is now a tuple of (nargs + nkwargs) attributes.
+    for (i = 0; i < nargs + nkwargs; i++) {
+        expr_ty arg;
+        if (i < nargs) {
+            // Positional:
+            arg = asdl_seq_GET(args, i);
+        }
+        else {
+            // Keyword:
+            arg = ((keyword_ty) asdl_seq_GET(kwargs, i - nargs))->value;
+        }
+        if (WILDCARD_CHECK(arg)) {
+            continue;
+        }
+        // Get the i-th attribute, and match it against the i-th pattern:
+        ADDOP(c, DUP_TOP);
+        ADDOP_LOAD_CONST_NEW(c, PyLong_FromSsize_t(i));
+        ADDOP(c, BINARY_SUBSCR);
+        RETURN_IF_FALSE(compiler_pattern_subpattern(c, arg, pc));
+        ADDOP_JUMP(c, POP_JUMP_IF_FALSE, fail_pop_1);
+        NEXT_BLOCK(c);
+    }
+    // Success! Pop the tuple of attributes:
+    ADDOP(c, POP_TOP);
+    ADDOP_LOAD_CONST(c, Py_True);
+    ADDOP_JUMP(c, JUMP_FORWARD, end);
+    compiler_use_next_block(c, fail_pop_1);
+    ADDOP(c, POP_TOP);
+    ADDOP_LOAD_CONST(c, Py_False);
+    compiler_use_next_block(c, end);
+    return 1;
+}
+
+
+static int
+compiler_pattern_literal(struct compiler *c, expr_ty p, pattern_context *pc)
+{
+    assert(p->kind == Constant_kind);
+    PyObject *v = p->v.Constant.value;
+    ADDOP_LOAD_CONST(c, v);
+    // Literal True, False, and None are compared by identity. All others use
+    // equality:
+    ADDOP_COMPARE(c, (v == Py_None || PyBool_Check(v)) ? Is : Eq);
+    return 1;
+}
+
+
+static int
+compiler_pattern_mapping(struct compiler *c, expr_ty p, pattern_context *pc)
+{
+    basicblock *end, *fail_pop_1, *fail_pop_3;
+    RETURN_IF_FALSE(end = compiler_new_block(c));
+    RETURN_IF_FALSE(fail_pop_1 = compiler_new_block(c));
+    RETURN_IF_FALSE(fail_pop_3 = compiler_new_block(c));
+    asdl_expr_seq *keys = p->v.Dict.keys;
+    asdl_expr_seq *values = p->v.Dict.values;
+    Py_ssize_t size = asdl_seq_LEN(values);
+    // A starred pattern will be a keyless value. It is guranteed to be last:
+    int star = size ? !asdl_seq_GET(keys, size - 1) : 0;
+    ADDOP(c, MATCH_MAPPING);
+    ADDOP_JUMP(c, POP_JUMP_IF_FALSE, fail_pop_1);
+    NEXT_BLOCK(c);
+    if (!size) {
+        // If the pattern is just "{}", we're done!
+        ADDOP(c, POP_TOP);
+        ADDOP_LOAD_CONST(c, Py_True);
+        ADDOP_JUMP(c, JUMP_FORWARD, end);
+        compiler_use_next_block(c, fail_pop_1);
+        ADDOP(c, POP_TOP);
+        ADDOP_LOAD_CONST(c, Py_False);
+        compiler_use_next_block(c, end);
+        return 1;
+    }
+    if (size - star) {
+        // If the pattern has any keys in it, perform a length check:
+        ADDOP(c, GET_LEN);
+        ADDOP_LOAD_CONST_NEW(c, PyLong_FromSsize_t(size - star));
+        ADDOP_COMPARE(c, GtE);
+        ADDOP_JUMP(c, POP_JUMP_IF_FALSE, fail_pop_1);
+        NEXT_BLOCK(c);
+    }
+    if (INT_MAX < size - star - 1) {
+        return compiler_error(c, "too many sub-patterns in mapping pattern");
+    }
+    // Collect all of the keys into a tuple for MATCH_KEYS and
+    // COPY_DICT_WITHOUT_KEYS. They can either be dotted names or literals:
+    for (Py_ssize_t i = 0; i < size - star; i++) {
+        expr_ty key = asdl_seq_GET(keys, i);
+        if (key == NULL) {
+            const char *e = "can't use starred name here "
+                            "(consider moving to end)";
+            return compiler_error(c, e);
+        }
+        VISIT(c, expr, key);
+    }
+    ADDOP_I(c, BUILD_TUPLE, size - star);
+    ADDOP(c, MATCH_KEYS);
+    ADDOP_JUMP(c, POP_JUMP_IF_FALSE, fail_pop_3);
+    NEXT_BLOCK(c);
+    // So far so good. There's now a tuple of values on the stack to match
+    // sub-patterns against:
+    for (Py_ssize_t i = 0; i < size - star; i++) {
+        expr_ty value = asdl_seq_GET(values, i);
+        if (WILDCARD_CHECK(value)) {
+            continue;
+        }
+        ADDOP(c, DUP_TOP);
+        ADDOP_LOAD_CONST_NEW(c, PyLong_FromSsize_t(i));
+        ADDOP(c, BINARY_SUBSCR);
+        RETURN_IF_FALSE(compiler_pattern_subpattern(c, value, pc));
+        ADDOP_JUMP(c, POP_JUMP_IF_FALSE, fail_pop_3);
+        NEXT_BLOCK(c);
+    }
+    // If we get this far, it's a match! We're done with that tuple of values.
+    ADDOP(c, POP_TOP);
+    if (star) {
+        // If we had a starred name, bind a dict of remaining items to it:
+        ADDOP(c, COPY_DICT_WITHOUT_KEYS);
+        PyObject *id = asdl_seq_GET(values, size - 1)->v.Name.id;
+        RETURN_IF_FALSE(pattern_helper_store_name(c, id, pc));
+    }
+    else {
+        // Otherwise, we don't care about this tuple of keys anymore:
+        ADDOP(c, POP_TOP);
+    }
+    // Pop the subject:
+    ADDOP(c, POP_TOP);
+    ADDOP_LOAD_CONST(c, Py_True);
+    ADDOP_JUMP(c, JUMP_FORWARD, end);
+    // The top two items are a tuple of values or None, followed by a tuple of
+    // keys. Pop them both:
+    compiler_use_next_block(c, fail_pop_3);
+    ADDOP(c, POP_TOP);
+    ADDOP(c, POP_TOP);
+    compiler_use_next_block(c, fail_pop_1);
+    // Pop the subject:
+    ADDOP(c, POP_TOP);
+    ADDOP_LOAD_CONST(c, Py_False);
+    compiler_use_next_block(c, end);
+    return 1;
+}
+
+
+static int
+compiler_pattern_or(struct compiler *c, expr_ty p, pattern_context *pc)
+{
+    assert(p->kind == MatchOr_kind);
+    // control is the set of names bound by the first alternative. If all of the
+    // others bind the same names (they should), then this becomes pc->stores.
+    PyObject *control = NULL;
+    basicblock *end, *pass_pop_1;
+    RETURN_IF_FALSE(end = compiler_new_block(c));
+    RETURN_IF_FALSE(pass_pop_1 = compiler_new_block(c));
+    Py_ssize_t size = asdl_seq_LEN(p->v.MatchOr.patterns);
+    assert(size > 1);
+    // We're going to be messing with pc. Keep the original info handy:
+    PyObject *stores_init = pc->stores;
+    int allow_irrefutable = pc->allow_irrefutable;
+    for (Py_ssize_t i = 0; i < size; i++) {
+        // NOTE: Can't use our nice returning macros in here: they'll leak sets!
+        expr_ty alt = asdl_seq_GET(p->v.MatchOr.patterns, i);
+        pc->stores = PySet_New(stores_init);
+        // An irrefutable sub-pattern must be last, if it is allowed at all:
+        int is_last = i == size - 1;
+        pc->allow_irrefutable = allow_irrefutable && is_last;
+        SET_LOC(c, alt);
+        if (pc->stores == NULL ||
+            // Only copy the subject if we're *not* on the last alternative:
+            (!is_last && !compiler_addop(c, DUP_TOP)) ||
+            !compiler_pattern(c, alt, pc) ||
+            // Only jump if we're *not* on the last alternative:
+            (!is_last && !compiler_addop_j(c, POP_JUMP_IF_TRUE, pass_pop_1)) ||
+            !compiler_next_block(c))
+        {
+            goto fail;
+        }
+        if (!i) {
+            // If this is the first alternative, save its stores as a "control"
+            // for the others (they can't bind a different set of names):
+            control = pc->stores;
+            continue;
+        }
+        if (PySet_GET_SIZE(pc->stores) || PySet_GET_SIZE(control)) {
+            // Otherwise, check to see if we differ from the control set:
+            PyObject *diff = PyNumber_InPlaceXor(pc->stores, control);
+            if (diff == NULL) {
+                goto fail;
+            }
+            if (PySet_GET_SIZE(diff)) {
+                // The names differ! Raise.
+                Py_DECREF(diff);
+                compiler_error(c, "alternative patterns bind different names");
+                goto fail;
+            }
+            Py_DECREF(diff);
+        }
+        Py_DECREF(pc->stores);
+    }
+    Py_XDECREF(stores_init);
+    // Update pc->stores and restore pc->allow_irrefutable:
+    pc->stores = control;
+    pc->allow_irrefutable = allow_irrefutable;
+    ADDOP_JUMP(c, JUMP_FORWARD, end);
+    compiler_use_next_block(c, pass_pop_1);
+    ADDOP(c, POP_TOP);
+    ADDOP_LOAD_CONST(c, Py_True);
+    compiler_use_next_block(c, end);
+    return 1;
+fail:
+    Py_XDECREF(stores_init);
+    Py_XDECREF(control);
+    return 0;
+}
+
+
+static int
+compiler_pattern_sequence(struct compiler *c, expr_ty p, pattern_context *pc)
+{
+    assert(p->kind == List_kind || p->kind == Tuple_kind);
+    asdl_expr_seq *values = (p->kind == Tuple_kind) ? p->v.Tuple.elts
+                                                    : p->v.List.elts;
+    Py_ssize_t size = asdl_seq_LEN(values);
+    Py_ssize_t star = -1;
+    int only_wildcard = 1;
+    int star_wildcard = 0;
+    // Find a starred name, if it exists. There may be at most one:
+    for (Py_ssize_t i = 0; i < size; i++) {
+        expr_ty value = asdl_seq_GET(values, i);
+        if (value->kind == Starred_kind) {
+            value = value->v.Starred.value;
+            if (star >= 0) {
+                const char *e = "multiple starred names in sequence pattern";
+                return compiler_error(c, e);
+            }
+            star_wildcard = WILDCARD_CHECK(value);
+            star = i;
+        }
+        only_wildcard &= WILDCARD_CHECK(value);
+    }
+    basicblock *end, *fail_pop_1;
+    RETURN_IF_FALSE(end = compiler_new_block(c));
+    RETURN_IF_FALSE(fail_pop_1 = compiler_new_block(c));
+    ADDOP(c, MATCH_SEQUENCE);
+    ADDOP_JUMP(c, POP_JUMP_IF_FALSE, fail_pop_1);
+    NEXT_BLOCK(c);
+    if (star < 0) {
+        // No star: len(subject) == size
+        ADDOP(c, GET_LEN);
+        ADDOP_LOAD_CONST_NEW(c, PyLong_FromSsize_t(size));
+        ADDOP_COMPARE(c, Eq);
+        ADDOP_JUMP(c, POP_JUMP_IF_FALSE, fail_pop_1);
+        NEXT_BLOCK(c);
+    }
+    else if (size > 1) {
+        // Star: len(subject) >= size - 1
+        ADDOP(c, GET_LEN);
+        ADDOP_LOAD_CONST_NEW(c, PyLong_FromSsize_t(size - 1));
+        ADDOP_COMPARE(c, GtE);
+        ADDOP_JUMP(c, POP_JUMP_IF_FALSE, fail_pop_1);
+        NEXT_BLOCK(c);
+    }
+    if (only_wildcard) {
+        // Patterns like: [] / [_] / [_, _] / [*_] / [_, *_] / [_, _, *_] / etc.
+        ADDOP(c, POP_TOP);
+        ADDOP_LOAD_CONST(c, Py_True);
+    }
+    else if (star_wildcard) {
+        RETURN_IF_FALSE(pattern_helper_sequence_subscr(c, values, star, pc));
+    }
+    else {
+        RETURN_IF_FALSE(pattern_helper_sequence_unpack(c, values, star, pc));
+    }
+    ADDOP_JUMP(c, JUMP_FORWARD, end);
+    compiler_use_next_block(c, fail_pop_1);
+    ADDOP(c, POP_TOP)
+    ADDOP_LOAD_CONST(c, Py_False);
+    compiler_use_next_block(c, end);
+    return 1;
+}
+
+
+static int
+compiler_pattern_value(struct compiler *c, expr_ty p, pattern_context *pc)
+{
+    assert(p->kind == Attribute_kind);
+    assert(p->v.Attribute.ctx == Load);
+    VISIT(c, expr, p);
+    ADDOP_COMPARE(c, Eq);
+    return 1;
+}
+
+
+static int
+compiler_pattern_wildcard(struct compiler *c, expr_ty p, pattern_context *pc)
+{
+    assert(p->kind == Name_kind);
+    assert(p->v.Name.ctx == Store);
+    assert(WILDCARD_CHECK(p));
+    if (!pc->allow_irrefutable) {
+        // Whoops, can't have a wildcard here!
+        const char *e = "wildcard makes remaining patterns unreachable";
+        return compiler_error(c, e);
+    }
+    ADDOP(c, POP_TOP);
+    ADDOP_LOAD_CONST(c, Py_True);
+    return 1;
+}
+
+
+static int
+compiler_pattern(struct compiler *c, expr_ty p, pattern_context *pc)
+{
+    SET_LOC(c, p);
+    switch (p->kind) {
+        case Attribute_kind:
+            return compiler_pattern_value(c, p, pc);
+        case BinOp_kind:
+            // Because we allow "2+2j", things like "2+2" make it this far:
+            return compiler_error(c, "patterns cannot include operators");
+        case Call_kind:
+            return compiler_pattern_class(c, p, pc);
+        case Constant_kind:
+            return compiler_pattern_literal(c, p, pc);
+        case Dict_kind:
+            return compiler_pattern_mapping(c, p, pc);
+        case JoinedStr_kind:
+            // Because we allow strings, f-strings make it this far:
+            return compiler_error(c, "patterns cannot include f-strings");
+        case List_kind:
+        case Tuple_kind:
+            return compiler_pattern_sequence(c, p, pc);
+        case MatchAs_kind:
+            return compiler_pattern_as(c, p, pc);
+        case MatchOr_kind:
+            return compiler_pattern_or(c, p, pc);
+        case Name_kind:
+            if (WILDCARD_CHECK(p)) {
+                return compiler_pattern_wildcard(c, p, pc);
+            }
+            return compiler_pattern_capture(c, p, pc);
+        default:
+            Py_UNREACHABLE();
+    }
+}
+
+
+static int
+compiler_match(struct compiler *c, stmt_ty s)
+{
+    VISIT(c, expr, s->v.Match.subject);
+    basicblock *next, *end;
+    RETURN_IF_FALSE(end = compiler_new_block(c));
+    Py_ssize_t cases = asdl_seq_LEN(s->v.Match.cases);
+    assert(cases);
+    pattern_context pc;
+    // We use pc.stores to track:
+    // - Repeated name assignments in the same pattern.
+    // - Different name assignments in alternatives.
+    // It's a set of names, but we don't create it until it's needed:
+    pc.stores = NULL;
+    match_case_ty m = asdl_seq_GET(s->v.Match.cases, cases - 1);
+    int has_default = WILDCARD_CHECK(m->pattern) && 1 < cases;
+    for (Py_ssize_t i = 0; i < cases - has_default; i++) {
+        m = asdl_seq_GET(s->v.Match.cases, i);
+        SET_LOC(c, m->pattern);
+        RETURN_IF_FALSE(next = compiler_new_block(c));
+        // If pc.allow_irrefutable is 0, any name captures against our subject
+        // will raise. Irrefutable cases must be either guarded, last, or both:
+        pc.allow_irrefutable = m->guard != NULL || i == cases - 1;
+        // Only copy the subject if we're *not* on the last case:
+        if (i != cases - has_default - 1) {
+            ADDOP(c, DUP_TOP);
+        }
+        int result = compiler_pattern(c, m->pattern, &pc);
+        Py_CLEAR(pc.stores);
+        RETURN_IF_FALSE(result);
+        ADDOP_JUMP(c, POP_JUMP_IF_FALSE, next);
+        NEXT_BLOCK(c);
+        if (m->guard) {
+            RETURN_IF_FALSE(compiler_jump_if(c, m->guard, next, 0));
+        }
+        // Success! Pop the subject off, we're done with it:
+        if (i != cases - has_default - 1) {
+            ADDOP(c, POP_TOP);
+        }
+        VISIT_SEQ(c, stmt, m->body);
+        ADDOP_JUMP(c, JUMP_FORWARD, end);
+        compiler_use_next_block(c, next);
+    }
+    if (has_default) {
+        if (cases == 1) {
+            // No matches. Done with the subject:
+            ADDOP(c, POP_TOP);
+        }
+        // A trailing "case _" is common, and lets us save a bit of redundant
+        // pushing and popping in the loop above:
+        m = asdl_seq_GET(s->v.Match.cases, cases - 1);
+        SET_LOC(c, m->pattern);
+        if (m->guard) {
+            RETURN_IF_FALSE(compiler_jump_if(c, m->guard, end, 0));
+        }
+        VISIT_SEQ(c, stmt, m->body);
+    }
+    compiler_use_next_block(c, end);
+    return 1;
+}
+
+
+#undef WILDCARD_CHECK
+
+
 /* End of the compiler section, beginning of the assembler section */
 
 /* do depth-first search of basic block graph, starting with block.
diff --git a/Python/importlib_external.h b/Python/importlib_external.h
index 32ed87d..6b4cd39 100644
--- a/Python/importlib_external.h
+++ b/Python/importlib_external.h
@@ -315,7 +315,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     0,0,0,115,38,0,0,0,16,5,6,1,22,1,4,255,
     2,2,14,3,24,1,16,128,18,1,12,1,2,1,12,1,
     2,3,12,254,2,1,2,1,2,254,2,253,255,128,114,84,
-    0,0,0,105,105,13,0,0,114,45,0,0,0,114,33,0,
+    0,0,0,105,106,13,0,0,114,45,0,0,0,114,33,0,
     0,0,115,2,0,0,0,13,10,90,11,95,95,112,121,99,
     97,99,104,101,95,95,122,4,111,112,116,45,122,3,46,112,
     121,122,4,46,112,121,119,122,4,46,112,121,99,41,1,218,
@@ -429,7 +429,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     90,15,97,108,109,111,115,116,95,102,105,108,101,110,97,109,
     101,218,8,102,105,108,101,110,97,109,101,114,7,0,0,0,
     114,7,0,0,0,114,8,0,0,0,218,17,99,97,99,104,
-    101,95,102,114,111,109,95,115,111,117,114,99,101,85,1,0,
+    101,95,102,114,111,109,95,115,111,117,114,99,101,86,1,0,
     0,115,74,0,0,0,8,18,6,1,2,1,4,255,8,2,
     4,1,8,1,12,1,10,1,12,1,16,1,8,1,8,1,
     8,1,24,1,8,1,12,1,6,1,8,2,8,1,8,1,
@@ -510,7 +510,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     0,0,90,9,111,112,116,95,108,101,118,101,108,90,13,98,
     97,115,101,95,102,105,108,101,110,97,109,101,114,7,0,0,
     0,114,7,0,0,0,114,8,0,0,0,218,17,115,111,117,
-    114,99,101,95,102,114,111,109,95,99,97,99,104,101,156,1,
+    114,99,101,95,102,114,111,109,95,99,97,99,104,101,157,1,
     0,0,115,62,0,0,0,12,9,8,1,10,1,12,1,4,
     1,10,1,12,1,14,1,16,1,4,1,4,1,12,1,8,
     1,8,1,2,1,8,255,10,2,8,1,14,1,10,1,16,
@@ -546,7 +546,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     120,116,101,110,115,105,111,110,218,11,115,111,117,114,99,101,
     95,112,97,116,104,114,7,0,0,0,114,7,0,0,0,114,
     8,0,0,0,218,15,95,103,101,116,95,115,111,117,114,99,
-    101,102,105,108,101,196,1,0,0,115,24,0,0,0,12,7,
+    101,102,105,108,101,197,1,0,0,115,24,0,0,0,12,7,
     4,1,16,1,24,1,4,1,2,1,12,1,16,1,14,1,
     16,1,2,254,255,128,114,120,0,0,0,99,1,0,0,0,
     0,0,0,0,0,0,0,0,1,0,0,0,8,0,0,0,
@@ -559,7 +559,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     112,108,101,114,113,0,0,0,114,109,0,0,0,114,95,0,
     0,0,114,101,0,0,0,41,1,114,108,0,0,0,114,7,
     0,0,0,114,7,0,0,0,114,8,0,0,0,218,11,95,
-    103,101,116,95,99,97,99,104,101,100,215,1,0,0,115,20,
+    103,101,116,95,99,97,99,104,101,100,216,1,0,0,115,20,
     0,0,0,14,1,2,1,10,1,12,1,6,1,14,1,4,
     1,4,2,2,251,255,128,114,124,0,0,0,99,1,0,0,
     0,0,0,0,0,0,0,0,0,2,0,0,0,8,0,0,
@@ -574,7 +574,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     0,0,0,114,65,0,0,0,114,64,0,0,0,41,2,114,
     58,0,0,0,114,66,0,0,0,114,7,0,0,0,114,7,
     0,0,0,114,8,0,0,0,218,10,95,99,97,108,99,95,
-    109,111,100,101,227,1,0,0,115,16,0,0,0,2,2,14,
+    109,111,100,101,228,1,0,0,115,16,0,0,0,2,2,14,
     1,12,1,6,1,8,3,4,1,2,251,255,128,114,126,0,
     0,0,99,1,0,0,0,0,0,0,0,0,0,0,0,3,
     0,0,0,4,0,0,0,3,0,0,0,115,52,0,0,0,
@@ -611,7 +611,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     108,102,114,128,0,0,0,218,4,97,114,103,115,218,6,107,
     119,97,114,103,115,169,1,218,6,109,101,116,104,111,100,114,
     7,0,0,0,114,8,0,0,0,218,19,95,99,104,101,99,
-    107,95,110,97,109,101,95,119,114,97,112,112,101,114,247,1,
+    107,95,110,97,109,101,95,119,114,97,112,112,101,114,248,1,
     0,0,115,20,0,0,0,8,1,8,1,10,1,4,1,8,
     1,2,255,2,1,6,255,24,2,255,128,122,40,95,99,104,
     101,99,107,95,110,97,109,101,46,60,108,111,99,97,108,115,
@@ -630,14 +630,14 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     99,116,95,95,218,6,117,112,100,97,116,101,41,3,90,3,
     110,101,119,90,3,111,108,100,114,82,0,0,0,114,7,0,
     0,0,114,7,0,0,0,114,8,0,0,0,218,5,95,119,
-    114,97,112,4,2,0,0,115,12,0,0,0,8,1,10,1,
+    114,97,112,5,2,0,0,115,12,0,0,0,8,1,10,1,
     18,1,2,128,18,1,255,128,122,26,95,99,104,101,99,107,
     95,110,97,109,101,46,60,108,111,99,97,108,115,62,46,95,
     119,114,97,112,41,1,78,41,2,218,10,95,98,111,111,116,
     115,116,114,97,112,114,145,0,0,0,41,3,114,134,0,0,
     0,114,135,0,0,0,114,145,0,0,0,114,7,0,0,0,
     114,133,0,0,0,114,8,0,0,0,218,11,95,99,104,101,
-    99,107,95,110,97,109,101,239,1,0,0,115,14,0,0,0,
+    99,107,95,110,97,109,101,240,1,0,0,115,14,0,0,0,
     14,8,8,10,8,1,8,2,10,6,4,1,255,128,114,147,
     0,0,0,99,2,0,0,0,0,0,0,0,0,0,0,0,
     5,0,0,0,6,0,0,0,67,0,0,0,115,60,0,0,
@@ -665,7 +665,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     97,109,101,218,6,108,111,97,100,101,114,218,8,112,111,114,
     116,105,111,110,115,218,3,109,115,103,114,7,0,0,0,114,
     7,0,0,0,114,8,0,0,0,218,17,95,102,105,110,100,
-    95,109,111,100,117,108,101,95,115,104,105,109,14,2,0,0,
+    95,109,111,100,117,108,101,95,115,104,105,109,15,2,0,0,
     115,12,0,0,0,14,10,16,1,4,1,22,1,4,1,255,
     128,114,154,0,0,0,99,3,0,0,0,0,0,0,0,0,
     0,0,0,6,0,0,0,4,0,0,0,67,0,0,0,115,
@@ -733,7 +733,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     115,90,5,109,97,103,105,99,114,105,0,0,0,114,17,0,
     0,0,114,7,0,0,0,114,7,0,0,0,114,8,0,0,
     0,218,13,95,99,108,97,115,115,105,102,121,95,112,121,99,
-    31,2,0,0,115,30,0,0,0,12,16,8,1,16,1,12,
+    32,2,0,0,115,30,0,0,0,12,16,8,1,16,1,12,
     1,16,1,12,1,10,1,12,1,8,1,16,1,8,2,16,
     1,16,1,4,1,255,128,114,163,0,0,0,99,5,0,0,
     0,0,0,0,0,0,0,0,0,6,0,0,0,4,0,0,
@@ -788,7 +788,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     0,0,0,114,162,0,0,0,114,105,0,0,0,114,7,0,
     0,0,114,7,0,0,0,114,8,0,0,0,218,23,95,118,
     97,108,105,100,97,116,101,95,116,105,109,101,115,116,97,109,
-    112,95,112,121,99,64,2,0,0,115,20,0,0,0,24,19,
+    112,95,112,121,99,65,2,0,0,115,20,0,0,0,24,19,
     10,1,12,1,16,1,8,1,22,1,2,255,22,2,8,254,
     255,128,114,167,0,0,0,99,4,0,0,0,0,0,0,0,
     0,0,0,0,4,0,0,0,4,0,0,0,67,0,0,0,
@@ -834,7 +834,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     0,0,218,11,115,111,117,114,99,101,95,104,97,115,104,114,
     128,0,0,0,114,162,0,0,0,114,7,0,0,0,114,7,
     0,0,0,114,8,0,0,0,218,18,95,118,97,108,105,100,
-    97,116,101,95,104,97,115,104,95,112,121,99,92,2,0,0,
+    97,116,101,95,104,97,115,104,95,112,121,99,93,2,0,0,
     115,16,0,0,0,16,17,2,1,8,1,4,255,2,2,6,
     254,4,255,255,128,114,169,0,0,0,99,4,0,0,0,0,
     0,0,0,0,0,0,0,5,0,0,0,5,0,0,0,67,
@@ -858,7 +858,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     114,42,0,0,0,114,128,0,0,0,114,118,0,0,0,114,
     119,0,0,0,218,4,99,111,100,101,114,7,0,0,0,114,
     7,0,0,0,114,8,0,0,0,218,17,95,99,111,109,112,
-    105,108,101,95,98,121,116,101,99,111,100,101,116,2,0,0,
+    105,108,101,95,98,121,116,101,99,111,100,101,117,2,0,0,
     115,20,0,0,0,10,2,10,1,12,1,8,1,12,1,4,
     1,10,2,4,1,6,255,255,128,114,176,0,0,0,99,3,
     0,0,0,0,0,0,0,0,0,0,0,4,0,0,0,5,
@@ -877,7 +877,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     114,166,0,0,0,114,42,0,0,0,114,7,0,0,0,114,
     7,0,0,0,114,8,0,0,0,218,22,95,99,111,100,101,
     95,116,111,95,116,105,109,101,115,116,97,109,112,95,112,121,
-    99,129,2,0,0,115,14,0,0,0,8,2,14,1,14,1,
+    99,130,2,0,0,115,14,0,0,0,8,2,14,1,14,1,
     14,1,16,1,4,1,255,128,114,181,0,0,0,84,99,3,
     0,0,0,0,0,0,0,0,0,0,0,5,0,0,0,5,
     0,0,0,67,0,0,0,115,80,0,0,0,116,0,116,1,
@@ -895,7 +895,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     0,0,90,7,99,104,101,99,107,101,100,114,42,0,0,0,
     114,17,0,0,0,114,7,0,0,0,114,7,0,0,0,114,
     8,0,0,0,218,17,95,99,111,100,101,95,116,111,95,104,
-    97,115,104,95,112,121,99,139,2,0,0,115,16,0,0,0,
+    97,115,104,95,112,121,99,140,2,0,0,115,16,0,0,0,
     8,2,12,1,14,1,16,1,10,1,16,1,4,1,255,128,
     114,182,0,0,0,99,1,0,0,0,0,0,0,0,0,0,
     0,0,5,0,0,0,6,0,0,0,67,0,0,0,115,62,
@@ -923,7 +923,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     105,110,103,90,15,110,101,119,108,105,110,101,95,100,101,99,
     111,100,101,114,114,7,0,0,0,114,7,0,0,0,114,8,
     0,0,0,218,13,100,101,99,111,100,101,95,115,111,117,114,
-    99,101,150,2,0,0,115,12,0,0,0,8,5,12,1,10,
+    99,101,151,2,0,0,115,12,0,0,0,8,5,12,1,10,
     1,12,1,20,1,255,128,114,187,0,0,0,169,2,114,151,
     0,0,0,218,26,115,117,98,109,111,100,117,108,101,95,115,
     101,97,114,99,104,95,108,111,99,97,116,105,111,110,115,99,
@@ -984,7 +984,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     8,115,117,102,102,105,120,101,115,114,193,0,0,0,90,7,
     100,105,114,110,97,109,101,114,7,0,0,0,114,7,0,0,
     0,114,8,0,0,0,218,23,115,112,101,99,95,102,114,111,
-    109,95,102,105,108,101,95,108,111,99,97,116,105,111,110,167,
+    109,95,102,105,108,101,95,108,111,99,97,116,105,111,110,168,
     2,0,0,115,74,0,0,0,8,12,4,4,10,1,2,2,
     14,1,14,1,4,1,2,251,10,7,16,8,6,1,8,3,
     14,1,14,1,10,1,6,1,4,1,2,253,4,5,8,3,
@@ -1023,7 +1023,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     72,75,69,89,95,76,79,67,65,76,95,77,65,67,72,73,
     78,69,114,20,0,0,0,114,7,0,0,0,114,7,0,0,
     0,114,8,0,0,0,218,14,95,111,112,101,110,95,114,101,
-    103,105,115,116,114,121,247,2,0,0,115,12,0,0,0,2,
+    103,105,115,116,114,121,248,2,0,0,115,12,0,0,0,2,
     2,16,1,12,1,18,1,2,255,255,128,122,36,87,105,110,
     100,111,119,115,82,101,103,105,115,116,114,121,70,105,110,100,
     101,114,46,95,111,112,101,110,95,114,101,103,105,115,116,114,
@@ -1050,7 +1050,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     116,114,121,95,107,101,121,114,21,0,0,0,90,4,104,107,
     101,121,218,8,102,105,108,101,112,97,116,104,114,7,0,0,
     0,114,7,0,0,0,114,8,0,0,0,218,16,95,115,101,
-    97,114,99,104,95,114,101,103,105,115,116,114,121,254,2,0,
+    97,114,99,104,95,114,101,103,105,115,116,114,121,255,2,0,
     0,115,30,0,0,0,6,2,8,1,6,2,6,1,16,1,
     6,255,2,2,12,1,26,1,18,128,4,3,12,254,6,1,
     2,255,255,128,122,38,87,105,110,100,111,119,115,82,101,103,
@@ -1073,7 +1073,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     0,0,0,218,6,116,97,114,103,101,116,114,210,0,0,0,
     114,151,0,0,0,114,200,0,0,0,114,198,0,0,0,114,
     7,0,0,0,114,7,0,0,0,114,8,0,0,0,218,9,
-    102,105,110,100,95,115,112,101,99,13,3,0,0,115,36,0,
+    102,105,110,100,95,115,112,101,99,14,3,0,0,115,36,0,
     0,0,10,2,8,1,4,1,2,1,12,1,12,1,6,1,
     14,1,14,1,6,1,8,1,2,1,6,254,8,3,2,252,
     4,255,2,254,255,128,122,31,87,105,110,100,111,119,115,82,
@@ -1093,7 +1093,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     169,4,114,209,0,0,0,114,150,0,0,0,114,58,0,0,
     0,114,198,0,0,0,114,7,0,0,0,114,7,0,0,0,
     114,8,0,0,0,218,11,102,105,110,100,95,109,111,100,117,
-    108,101,29,3,0,0,115,10,0,0,0,12,7,8,1,6,
+    108,101,30,3,0,0,115,10,0,0,0,12,7,8,1,6,
     1,4,2,255,128,122,33,87,105,110,100,111,119,115,82,101,
     103,105,115,116,114,121,70,105,110,100,101,114,46,102,105,110,
     100,95,109,111,100,117,108,101,41,2,78,78,41,1,78,41,
@@ -1105,7 +1105,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     104,111,100,114,204,0,0,0,218,11,99,108,97,115,115,109,
     101,116,104,111,100,114,211,0,0,0,114,214,0,0,0,114,
     217,0,0,0,114,7,0,0,0,114,7,0,0,0,114,7,
-    0,0,0,114,8,0,0,0,114,202,0,0,0,235,2,0,
+    0,0,0,114,8,0,0,0,114,202,0,0,0,236,2,0,
     0,115,32,0,0,0,8,0,4,2,2,3,2,255,2,4,
     2,255,12,3,2,2,10,1,2,6,10,1,2,14,12,1,
     2,15,16,1,255,128,114,202,0,0,0,99,0,0,0,0,
@@ -1142,7 +1142,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     108,0,0,0,90,13,102,105,108,101,110,97,109,101,95,98,
     97,115,101,90,9,116,97,105,108,95,110,97,109,101,114,7,
     0,0,0,114,7,0,0,0,114,8,0,0,0,114,193,0,
-    0,0,48,3,0,0,115,10,0,0,0,18,3,16,1,14,
+    0,0,49,3,0,0,115,10,0,0,0,18,3,16,1,14,
     1,16,1,255,128,122,24,95,76,111,97,100,101,114,66,97,
     115,105,99,115,46,105,115,95,112,97,99,107,97,103,101,99,
     2,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,
@@ -1152,7 +1152,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     101,32,99,114,101,97,116,105,111,110,46,78,114,7,0,0,
     0,169,2,114,130,0,0,0,114,198,0,0,0,114,7,0,
     0,0,114,7,0,0,0,114,8,0,0,0,218,13,99,114,
-    101,97,116,101,95,109,111,100,117,108,101,56,3,0,0,243,
+    101,97,116,101,95,109,111,100,117,108,101,57,3,0,0,243,
     4,0,0,0,4,0,255,128,122,27,95,76,111,97,100,101,
     114,66,97,115,105,99,115,46,99,114,101,97,116,101,95,109,
     111,100,117,108,101,99,2,0,0,0,0,0,0,0,0,0,
@@ -1172,7 +1172,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     111,118,101,100,218,4,101,120,101,99,114,143,0,0,0,41,
     3,114,130,0,0,0,218,6,109,111,100,117,108,101,114,175,
     0,0,0,114,7,0,0,0,114,7,0,0,0,114,8,0,
-    0,0,218,11,101,120,101,99,95,109,111,100,117,108,101,59,
+    0,0,218,11,101,120,101,99,95,109,111,100,117,108,101,60,
     3,0,0,115,14,0,0,0,12,2,8,1,6,1,4,1,
     6,255,20,2,255,128,122,25,95,76,111,97,100,101,114,66,
     97,115,105,99,115,46,101,120,101,99,95,109,111,100,117,108,
@@ -1184,14 +1184,14 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     0,218,17,95,108,111,97,100,95,109,111,100,117,108,101,95,
     115,104,105,109,169,2,114,130,0,0,0,114,150,0,0,0,
     114,7,0,0,0,114,7,0,0,0,114,8,0,0,0,218,
-    11,108,111,97,100,95,109,111,100,117,108,101,67,3,0,0,
+    11,108,111,97,100,95,109,111,100,117,108,101,68,3,0,0,
     115,4,0,0,0,12,3,255,128,122,25,95,76,111,97,100,
     101,114,66,97,115,105,99,115,46,108,111,97,100,95,109,111,
     100,117,108,101,78,41,8,114,137,0,0,0,114,136,0,0,
     0,114,138,0,0,0,114,139,0,0,0,114,193,0,0,0,
     114,226,0,0,0,114,232,0,0,0,114,235,0,0,0,114,
     7,0,0,0,114,7,0,0,0,114,7,0,0,0,114,8,
-    0,0,0,114,222,0,0,0,43,3,0,0,115,14,0,0,
+    0,0,0,114,222,0,0,0,44,3,0,0,115,14,0,0,
     0,8,0,4,2,8,3,8,8,8,3,12,8,255,128,114,
     222,0,0,0,99,0,0,0,0,0,0,0,0,0,0,0,
     0,0,0,0,0,3,0,0,0,64,0,0,0,115,74,0,
@@ -1216,7 +1216,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     32,32,32,32,32,32,32,78,41,1,114,64,0,0,0,169,
     2,114,130,0,0,0,114,58,0,0,0,114,7,0,0,0,
     114,7,0,0,0,114,8,0,0,0,218,10,112,97,116,104,
-    95,109,116,105,109,101,75,3,0,0,115,4,0,0,0,4,
+    95,109,116,105,109,101,76,3,0,0,115,4,0,0,0,4,
     6,255,128,122,23,83,111,117,114,99,101,76,111,97,100,101,
     114,46,112,97,116,104,95,109,116,105,109,101,99,2,0,0,
     0,0,0,0,0,0,0,0,0,2,0,0,0,4,0,0,
@@ -1250,7 +1250,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     108,101,100,46,10,32,32,32,32,32,32,32,32,114,180,0,
     0,0,78,41,1,114,238,0,0,0,114,237,0,0,0,114,
     7,0,0,0,114,7,0,0,0,114,8,0,0,0,218,10,
-    112,97,116,104,95,115,116,97,116,115,83,3,0,0,115,4,
+    112,97,116,104,95,115,116,97,116,115,84,3,0,0,115,4,
     0,0,0,14,12,255,128,122,23,83,111,117,114,99,101,76,
     111,97,100,101,114,46,112,97,116,104,95,115,116,97,116,115,
     99,4,0,0,0,0,0,0,0,0,0,0,0,4,0,0,
@@ -1274,7 +1274,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     4,114,130,0,0,0,114,119,0,0,0,90,10,99,97,99,
     104,101,95,112,97,116,104,114,42,0,0,0,114,7,0,0,
     0,114,7,0,0,0,114,8,0,0,0,218,15,95,99,97,
-    99,104,101,95,98,121,116,101,99,111,100,101,97,3,0,0,
+    99,104,101,95,98,121,116,101,99,111,100,101,98,3,0,0,
     115,4,0,0,0,12,8,255,128,122,28,83,111,117,114,99,
     101,76,111,97,100,101,114,46,95,99,97,99,104,101,95,98,
     121,116,101,99,111,100,101,99,3,0,0,0,0,0,0,0,
@@ -1291,7 +1291,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     102,105,108,101,115,46,10,32,32,32,32,32,32,32,32,78,
     114,7,0,0,0,41,3,114,130,0,0,0,114,58,0,0,
     0,114,42,0,0,0,114,7,0,0,0,114,7,0,0,0,
-    114,8,0,0,0,114,240,0,0,0,107,3,0,0,114,227,
+    114,8,0,0,0,114,240,0,0,0,108,3,0,0,114,227,
     0,0,0,122,21,83,111,117,114,99,101,76,111,97,100,101,
     114,46,115,101,116,95,100,97,116,97,99,2,0,0,0,0,
     0,0,0,0,0,0,0,5,0,0,0,10,0,0,0,67,
@@ -1311,7 +1311,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     114,187,0,0,0,41,5,114,130,0,0,0,114,150,0,0,
     0,114,58,0,0,0,114,185,0,0,0,218,3,101,120,99,
     114,7,0,0,0,114,7,0,0,0,114,8,0,0,0,218,
-    10,103,101,116,95,115,111,117,114,99,101,114,3,0,0,115,
+    10,103,101,116,95,115,111,117,114,99,101,115,3,0,0,115,
     26,0,0,0,10,2,2,1,12,1,8,4,14,253,4,1,
     2,1,4,255,2,1,2,255,8,128,2,255,255,128,122,23,
     83,111,117,114,99,101,76,111,97,100,101,114,46,103,101,116,
@@ -1334,7 +1334,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     112,105,108,101,41,4,114,130,0,0,0,114,42,0,0,0,
     114,58,0,0,0,114,245,0,0,0,114,7,0,0,0,114,
     7,0,0,0,114,8,0,0,0,218,14,115,111,117,114,99,
-    101,95,116,111,95,99,111,100,101,124,3,0,0,115,8,0,
+    101,95,116,111,95,99,111,100,101,125,3,0,0,115,8,0,
     0,0,12,5,4,1,6,255,255,128,122,27,83,111,117,114,
     99,101,76,111,97,100,101,114,46,115,111,117,114,99,101,95,
     116,111,95,99,111,100,101,99,2,0,0,0,0,0,0,0,
@@ -1412,7 +1412,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     0,114,17,0,0,0,90,10,98,121,116,101,115,95,100,97,
     116,97,90,11,99,111,100,101,95,111,98,106,101,99,116,114,
     7,0,0,0,114,7,0,0,0,114,8,0,0,0,114,228,
-    0,0,0,132,3,0,0,115,170,0,0,0,10,7,4,1,
+    0,0,0,133,3,0,0,115,170,0,0,0,10,7,4,1,
     4,1,4,1,4,1,4,1,2,1,12,1,14,1,10,1,
     2,2,14,1,14,1,6,1,12,2,2,1,14,1,14,1,
     4,1,2,3,2,1,6,254,2,4,12,1,16,1,12,1,
@@ -1429,7 +1429,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     238,0,0,0,114,239,0,0,0,114,241,0,0,0,114,240,
     0,0,0,114,244,0,0,0,114,248,0,0,0,114,228,0,
     0,0,114,7,0,0,0,114,7,0,0,0,114,7,0,0,
-    0,114,8,0,0,0,114,236,0,0,0,73,3,0,0,115,
+    0,114,8,0,0,0,114,236,0,0,0,74,3,0,0,115,
     18,0,0,0,8,0,8,2,8,8,8,14,8,10,8,7,
     14,10,12,8,255,128,114,236,0,0,0,99,0,0,0,0,
     0,0,0,0,0,0,0,0,0,0,0,0,4,0,0,0,
@@ -1457,7 +1457,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     32,32,102,105,110,100,101,114,46,78,114,170,0,0,0,41,
     3,114,130,0,0,0,114,150,0,0,0,114,58,0,0,0,
     114,7,0,0,0,114,7,0,0,0,114,8,0,0,0,114,
-    223,0,0,0,222,3,0,0,115,6,0,0,0,6,3,10,
+    223,0,0,0,223,3,0,0,115,6,0,0,0,6,3,10,
     1,255,128,122,19,70,105,108,101,76,111,97,100,101,114,46,
     95,95,105,110,105,116,95,95,99,2,0,0,0,0,0,0,
     0,0,0,0,0,2,0,0,0,2,0,0,0,67,0,0,
@@ -1466,7 +1466,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     0,0,0,169,2,218,9,95,95,99,108,97,115,115,95,95,
     114,143,0,0,0,169,2,114,130,0,0,0,90,5,111,116,
     104,101,114,114,7,0,0,0,114,7,0,0,0,114,8,0,
-    0,0,218,6,95,95,101,113,95,95,228,3,0,0,243,8,
+    0,0,218,6,95,95,101,113,95,95,229,3,0,0,243,8,
     0,0,0,12,1,10,1,2,255,255,128,122,17,70,105,108,
     101,76,111,97,100,101,114,46,95,95,101,113,95,95,99,1,
     0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,3,
@@ -1475,7 +1475,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     114,121,0,0,0,169,3,218,4,104,97,115,104,114,128,0,
     0,0,114,58,0,0,0,169,1,114,130,0,0,0,114,7,
     0,0,0,114,7,0,0,0,114,8,0,0,0,218,8,95,
-    95,104,97,115,104,95,95,232,3,0,0,243,4,0,0,0,
+    95,104,97,115,104,95,95,233,3,0,0,243,4,0,0,0,
     20,1,255,128,122,19,70,105,108,101,76,111,97,100,101,114,
     46,95,95,104,97,115,104,95,95,99,2,0,0,0,0,0,
     0,0,0,0,0,0,2,0,0,0,3,0,0,0,3,0,
@@ -1489,7 +1489,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     116,101,97,100,46,10,10,32,32,32,32,32,32,32,32,78,
     41,3,218,5,115,117,112,101,114,114,254,0,0,0,114,235,
     0,0,0,114,234,0,0,0,169,1,114,1,1,0,0,114,
-    7,0,0,0,114,8,0,0,0,114,235,0,0,0,235,3,
+    7,0,0,0,114,8,0,0,0,114,235,0,0,0,236,3,
     0,0,115,4,0,0,0,16,10,255,128,122,22,70,105,108,
     101,76,111,97,100,101,114,46,108,111,97,100,95,109,111,100,
     117,108,101,99,2,0,0,0,0,0,0,0,0,0,0,0,
@@ -1500,7 +1500,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     32,102,111,117,110,100,32,98,121,32,116,104,101,32,102,105,
     110,100,101,114,46,78,114,62,0,0,0,114,234,0,0,0,
     114,7,0,0,0,114,7,0,0,0,114,8,0,0,0,114,
-    190,0,0,0,247,3,0,0,243,4,0,0,0,6,3,255,
+    190,0,0,0,248,3,0,0,243,4,0,0,0,6,3,255,
     128,122,23,70,105,108,101,76,111,97,100,101,114,46,103,101,
     116,95,102,105,108,101,110,97,109,101,99,2,0,0,0,0,
     0,0,0,0,0,0,0,3,0,0,0,8,0,0,0,67,
@@ -1521,7 +1521,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     112,101,110,95,99,111,100,101,114,97,0,0,0,90,4,114,
     101,97,100,114,80,0,0,0,41,3,114,130,0,0,0,114,
     58,0,0,0,114,83,0,0,0,114,7,0,0,0,114,7,
-    0,0,0,114,8,0,0,0,114,242,0,0,0,252,3,0,
+    0,0,0,114,8,0,0,0,114,242,0,0,0,253,3,0,
     0,115,16,0,0,0,14,2,16,1,22,1,20,128,14,2,
     22,1,20,128,255,128,122,19,70,105,108,101,76,111,97,100,
     101,114,46,103,101,116,95,100,97,116,97,99,2,0,0,0,
@@ -1534,7 +1534,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     130,0,0,0,114,231,0,0,0,114,18,1,0,0,114,7,
     0,0,0,114,7,0,0,0,114,8,0,0,0,218,19,103,
     101,116,95,114,101,115,111,117,114,99,101,95,114,101,97,100,
-    101,114,5,4,0,0,115,6,0,0,0,12,2,8,1,255,
+    101,114,6,4,0,0,115,6,0,0,0,12,2,8,1,255,
     128,122,30,70,105,108,101,76,111,97,100,101,114,46,103,101,
     116,95,114,101,115,111,117,114,99,101,95,114,101,97,100,101,
     114,41,13,114,137,0,0,0,114,136,0,0,0,114,138,0,
@@ -1543,7 +1543,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     114,190,0,0,0,114,242,0,0,0,114,19,1,0,0,90,
     13,95,95,99,108,97,115,115,99,101,108,108,95,95,114,7,
     0,0,0,114,7,0,0,0,114,12,1,0,0,114,8,0,
-    0,0,114,254,0,0,0,217,3,0,0,115,26,0,0,0,
+    0,0,114,254,0,0,0,218,3,0,0,115,26,0,0,0,
     8,0,4,2,8,3,8,6,8,4,2,3,14,1,2,11,
     10,1,8,4,2,9,18,1,255,128,114,254,0,0,0,99,
     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
@@ -1566,7 +1566,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     95,109,116,105,109,101,90,7,115,116,95,115,105,122,101,41,
     3,114,130,0,0,0,114,58,0,0,0,114,253,0,0,0,
     114,7,0,0,0,114,7,0,0,0,114,8,0,0,0,114,
-    239,0,0,0,15,4,0,0,115,6,0,0,0,8,2,14,
+    239,0,0,0,16,4,0,0,115,6,0,0,0,8,2,14,
     1,255,128,122,27,83,111,117,114,99,101,70,105,108,101,76,
     111,97,100,101,114,46,112,97,116,104,95,115,116,97,116,115,
     99,4,0,0,0,0,0,0,0,0,0,0,0,5,0,0,
@@ -1576,7 +1576,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     100,101,41,2,114,126,0,0,0,114,240,0,0,0,41,5,
     114,130,0,0,0,114,119,0,0,0,114,118,0,0,0,114,
     42,0,0,0,114,66,0,0,0,114,7,0,0,0,114,7,
-    0,0,0,114,8,0,0,0,114,241,0,0,0,20,4,0,
+    0,0,0,114,8,0,0,0,114,241,0,0,0,21,4,0,
     0,115,6,0,0,0,8,2,16,1,255,128,122,32,83,111,
     117,114,99,101,70,105,108,101,76,111,97,100,101,114,46,95,
     99,97,99,104,101,95,98,121,116,101,99,111,100,101,114,75,
@@ -1612,7 +1612,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     0,218,6,112,97,114,101,110,116,114,108,0,0,0,114,53,
     0,0,0,114,49,0,0,0,114,243,0,0,0,114,7,0,
     0,0,114,7,0,0,0,114,8,0,0,0,114,240,0,0,
-    0,25,4,0,0,115,58,0,0,0,12,2,4,1,12,2,
+    0,26,4,0,0,115,58,0,0,0,12,2,4,1,12,2,
     12,1,10,1,12,254,12,4,10,1,2,1,14,1,12,1,
     4,2,14,1,6,3,4,1,4,255,16,2,8,128,2,1,
     12,1,18,1,14,1,8,2,2,1,18,255,8,128,2,254,
@@ -1621,7 +1621,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     41,7,114,137,0,0,0,114,136,0,0,0,114,138,0,0,
     0,114,139,0,0,0,114,239,0,0,0,114,241,0,0,0,
     114,240,0,0,0,114,7,0,0,0,114,7,0,0,0,114,
-    7,0,0,0,114,8,0,0,0,114,20,1,0,0,11,4,
+    7,0,0,0,114,8,0,0,0,114,20,1,0,0,12,4,
     0,0,115,12,0,0,0,8,0,4,2,8,2,8,5,18,
     5,255,128,114,20,1,0,0,99,0,0,0,0,0,0,0,
     0,0,0,0,0,0,0,0,0,2,0,0,0,64,0,0,
@@ -1644,7 +1644,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     0,0,0,41,5,114,130,0,0,0,114,150,0,0,0,114,
     58,0,0,0,114,42,0,0,0,114,162,0,0,0,114,7,
     0,0,0,114,7,0,0,0,114,8,0,0,0,114,228,0,
-    0,0,60,4,0,0,115,24,0,0,0,10,1,10,1,2,
+    0,0,61,4,0,0,115,24,0,0,0,10,1,10,1,2,
     4,2,1,6,254,12,4,2,1,14,1,2,1,2,1,6,
     253,255,128,122,29,83,111,117,114,99,101,108,101,115,115,70,
     105,108,101,76,111,97,100,101,114,46,103,101,116,95,99,111,
@@ -1654,13 +1654,13 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     97,115,32,116,104,101,114,101,32,105,115,32,110,111,32,115,
     111,117,114,99,101,32,99,111,100,101,46,78,114,7,0,0,
     0,114,234,0,0,0,114,7,0,0,0,114,7,0,0,0,
-    114,8,0,0,0,114,244,0,0,0,76,4,0,0,114,25,
+    114,8,0,0,0,114,244,0,0,0,77,4,0,0,114,25,
     0,0,0,122,31,83,111,117,114,99,101,108,101,115,115,70,
     105,108,101,76,111,97,100,101,114,46,103,101,116,95,115,111,
     117,114,99,101,78,41,6,114,137,0,0,0,114,136,0,0,
     0,114,138,0,0,0,114,139,0,0,0,114,228,0,0,0,
     114,244,0,0,0,114,7,0,0,0,114,7,0,0,0,114,
-    7,0,0,0,114,8,0,0,0,114,26,1,0,0,56,4,
+    7,0,0,0,114,8,0,0,0,114,26,1,0,0,57,4,
     0,0,115,10,0,0,0,8,0,4,2,8,2,12,16,255,
     128,114,26,1,0,0,99,0,0,0,0,0,0,0,0,0,
     0,0,0,0,0,0,0,3,0,0,0,64,0,0,0,115,
@@ -1682,20 +1682,20 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     100,0,83,0,114,121,0,0,0,114,170,0,0,0,41,3,
     114,130,0,0,0,114,128,0,0,0,114,58,0,0,0,114,
     7,0,0,0,114,7,0,0,0,114,8,0,0,0,114,223,
-    0,0,0,89,4,0,0,115,6,0,0,0,6,1,10,1,
+    0,0,0,90,4,0,0,115,6,0,0,0,6,1,10,1,
     255,128,122,28,69,120,116,101,110,115,105,111,110,70,105,108,
     101,76,111,97,100,101,114,46,95,95,105,110,105,116,95,95,
     99,2,0,0,0,0,0,0,0,0,0,0,0,2,0,0,
     0,2,0,0,0,67,0,0,0,114,255,0,0,0,114,121,
     0,0,0,114,0,1,0,0,114,2,1,0,0,114,7,0,
     0,0,114,7,0,0,0,114,8,0,0,0,114,3,1,0,
-    0,93,4,0,0,114,4,1,0,0,122,26,69,120,116,101,
+    0,94,4,0,0,114,4,1,0,0,122,26,69,120,116,101,
     110,115,105,111,110,70,105,108,101,76,111,97,100,101,114,46,
     95,95,101,113,95,95,99,1,0,0,0,0,0,0,0,0,
     0,0,0,1,0,0,0,3,0,0,0,67,0,0,0,114,
     5,1,0,0,114,121,0,0,0,114,6,1,0,0,114,8,
     1,0,0,114,7,0,0,0,114,7,0,0,0,114,8,0,
-    0,0,114,9,1,0,0,97,4,0,0,114,10,1,0,0,
+    0,0,114,9,1,0,0,98,4,0,0,114,10,1,0,0,
     122,28,69,120,116,101,110,115,105,111,110,70,105,108,101,76,
     111,97,100,101,114,46,95,95,104,97,115,104,95,95,99,2,
     0,0,0,0,0,0,0,0,0,0,0,3,0,0,0,5,
@@ -1712,7 +1712,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     97,109,105,99,114,160,0,0,0,114,128,0,0,0,114,58,
     0,0,0,41,3,114,130,0,0,0,114,198,0,0,0,114,
     231,0,0,0,114,7,0,0,0,114,7,0,0,0,114,8,
-    0,0,0,114,226,0,0,0,100,4,0,0,115,16,0,0,
+    0,0,0,114,226,0,0,0,101,4,0,0,115,16,0,0,
     0,4,2,6,1,4,255,6,2,8,1,4,255,4,2,255,
     128,122,33,69,120,116,101,110,115,105,111,110,70,105,108,101,
     76,111,97,100,101,114,46,99,114,101,97,116,101,95,109,111,
@@ -1730,7 +1730,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     105,99,114,160,0,0,0,114,128,0,0,0,114,58,0,0,
     0,169,2,114,130,0,0,0,114,231,0,0,0,114,7,0,
     0,0,114,7,0,0,0,114,8,0,0,0,114,232,0,0,
-    0,108,4,0,0,115,10,0,0,0,14,2,6,1,8,1,
+    0,109,4,0,0,115,10,0,0,0,14,2,6,1,8,1,
     8,255,255,128,122,31,69,120,116,101,110,115,105,111,110,70,
     105,108,101,76,111,97,100,101,114,46,101,120,101,99,95,109,
     111,100,117,108,101,99,2,0,0,0,0,0,0,0,0,0,
@@ -1748,14 +1748,14 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     78,114,7,0,0,0,169,2,114,5,0,0,0,218,6,115,
     117,102,102,105,120,169,1,90,9,102,105,108,101,95,110,97,
     109,101,114,7,0,0,0,114,8,0,0,0,114,9,0,0,
-    0,117,4,0,0,115,8,0,0,0,4,0,2,1,20,255,
+    0,118,4,0,0,115,8,0,0,0,4,0,2,1,20,255,
     255,128,122,49,69,120,116,101,110,115,105,111,110,70,105,108,
     101,76,111,97,100,101,114,46,105,115,95,112,97,99,107,97,
     103,101,46,60,108,111,99,97,108,115,62,46,60,103,101,110,
     101,120,112,114,62,78,41,4,114,61,0,0,0,114,58,0,
     0,0,218,3,97,110,121,114,219,0,0,0,114,234,0,0,
     0,114,7,0,0,0,114,30,1,0,0,114,8,0,0,0,
-    114,193,0,0,0,114,4,0,0,115,10,0,0,0,14,2,
+    114,193,0,0,0,115,4,0,0,115,10,0,0,0,14,2,
     12,1,2,1,8,255,255,128,122,30,69,120,116,101,110,115,
     105,111,110,70,105,108,101,76,111,97,100,101,114,46,105,115,
     95,112,97,99,107,97,103,101,99,2,0,0,0,0,0,0,
@@ -1766,7 +1766,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     110,111,116,32,99,114,101,97,116,101,32,97,32,99,111,100,
     101,32,111,98,106,101,99,116,46,78,114,7,0,0,0,114,
     234,0,0,0,114,7,0,0,0,114,7,0,0,0,114,8,
-    0,0,0,114,228,0,0,0,120,4,0,0,114,25,0,0,
+    0,0,0,114,228,0,0,0,121,4,0,0,114,25,0,0,
     0,122,28,69,120,116,101,110,115,105,111,110,70,105,108,101,
     76,111,97,100,101,114,46,103,101,116,95,99,111,100,101,99,
     2,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,
@@ -1776,13 +1776,13 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     115,32,104,97,118,101,32,110,111,32,115,111,117,114,99,101,
     32,99,111,100,101,46,78,114,7,0,0,0,114,234,0,0,
     0,114,7,0,0,0,114,7,0,0,0,114,8,0,0,0,
-    114,244,0,0,0,124,4,0,0,114,25,0,0,0,122,30,
+    114,244,0,0,0,125,4,0,0,114,25,0,0,0,122,30,
     69,120,116,101,110,115,105,111,110,70,105,108,101,76,111,97,
     100,101,114,46,103,101,116,95,115,111,117,114,99,101,99,2,
     0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,1,
     0,0,0,67,0,0,0,114,13,1,0,0,114,14,1,0,
     0,114,62,0,0,0,114,234,0,0,0,114,7,0,0,0,
-    114,7,0,0,0,114,8,0,0,0,114,190,0,0,0,128,
+    114,7,0,0,0,114,8,0,0,0,114,190,0,0,0,129,
     4,0,0,114,15,1,0,0,122,32,69,120,116,101,110,115,
     105,111,110,70,105,108,101,76,111,97,100,101,114,46,103,101,
     116,95,102,105,108,101,110,97,109,101,78,41,14,114,137,0,
@@ -1791,7 +1791,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     114,226,0,0,0,114,232,0,0,0,114,193,0,0,0,114,
     228,0,0,0,114,244,0,0,0,114,147,0,0,0,114,190,
     0,0,0,114,7,0,0,0,114,7,0,0,0,114,7,0,
-    0,0,114,8,0,0,0,114,17,1,0,0,81,4,0,0,
+    0,0,114,8,0,0,0,114,17,1,0,0,82,4,0,0,
     115,26,0,0,0,8,0,4,2,8,6,8,4,8,4,8,
     3,8,8,8,6,8,6,8,4,2,4,14,1,255,128,114,
     17,1,0,0,99,0,0,0,0,0,0,0,0,0,0,0,
@@ -1834,7 +1834,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     102,105,110,100,101,114,169,4,114,130,0,0,0,114,128,0,
     0,0,114,58,0,0,0,90,11,112,97,116,104,95,102,105,
     110,100,101,114,114,7,0,0,0,114,7,0,0,0,114,8,
-    0,0,0,114,223,0,0,0,141,4,0,0,115,10,0,0,
+    0,0,0,114,223,0,0,0,142,4,0,0,115,10,0,0,
     0,6,1,6,1,14,1,10,1,255,128,122,23,95,78,97,
     109,101,115,112,97,99,101,80,97,116,104,46,95,95,105,110,
     105,116,95,95,99,1,0,0,0,0,0,0,0,0,0,0,
@@ -1852,7 +1852,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     1,0,0,218,3,100,111,116,90,2,109,101,114,7,0,0,
     0,114,7,0,0,0,114,8,0,0,0,218,23,95,102,105,
     110,100,95,112,97,114,101,110,116,95,112,97,116,104,95,110,
-    97,109,101,115,147,4,0,0,115,10,0,0,0,18,2,8,
+    97,109,101,115,148,4,0,0,115,10,0,0,0,18,2,8,
     1,4,2,8,3,255,128,122,38,95,78,97,109,101,115,112,
     97,99,101,80,97,116,104,46,95,102,105,110,100,95,112,97,
     114,101,110,116,95,112,97,116,104,95,110,97,109,101,115,99,
@@ -1865,7 +1865,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     18,112,97,114,101,110,116,95,109,111,100,117,108,101,95,110,
     97,109,101,90,14,112,97,116,104,95,97,116,116,114,95,110,
     97,109,101,114,7,0,0,0,114,7,0,0,0,114,8,0,
-    0,0,114,35,1,0,0,157,4,0,0,115,6,0,0,0,
+    0,0,114,35,1,0,0,158,4,0,0,115,6,0,0,0,
     12,1,16,1,255,128,122,31,95,78,97,109,101,115,112,97,
     99,101,80,97,116,104,46,95,103,101,116,95,112,97,114,101,
     110,116,95,112,97,116,104,99,1,0,0,0,0,0,0,0,
@@ -1881,7 +1881,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     34,1,0,0,41,3,114,130,0,0,0,90,11,112,97,114,
     101,110,116,95,112,97,116,104,114,198,0,0,0,114,7,0,
     0,0,114,7,0,0,0,114,8,0,0,0,218,12,95,114,
-    101,99,97,108,99,117,108,97,116,101,161,4,0,0,115,18,
+    101,99,97,108,99,117,108,97,116,101,162,4,0,0,115,18,
     0,0,0,12,2,10,1,14,1,18,3,6,1,8,1,6,
     1,6,1,255,128,122,27,95,78,97,109,101,115,112,97,99,
     101,80,97,116,104,46,95,114,101,99,97,108,99,117,108,97,
@@ -1890,7 +1890,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     116,0,124,0,160,1,161,0,131,1,83,0,114,121,0,0,
     0,41,2,218,4,105,116,101,114,114,42,1,0,0,114,8,
     1,0,0,114,7,0,0,0,114,7,0,0,0,114,8,0,
-    0,0,218,8,95,95,105,116,101,114,95,95,174,4,0,0,
+    0,0,218,8,95,95,105,116,101,114,95,95,175,4,0,0,
     243,4,0,0,0,12,1,255,128,122,23,95,78,97,109,101,
     115,112,97,99,101,80,97,116,104,46,95,95,105,116,101,114,
     95,95,99,2,0,0,0,0,0,0,0,0,0,0,0,2,
@@ -1899,7 +1899,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     0,169,1,114,42,1,0,0,41,2,114,130,0,0,0,218,
     5,105,110,100,101,120,114,7,0,0,0,114,7,0,0,0,
     114,8,0,0,0,218,11,95,95,103,101,116,105,116,101,109,
-    95,95,177,4,0,0,114,46,1,0,0,122,26,95,78,97,
+    95,95,178,4,0,0,114,46,1,0,0,122,26,95,78,97,
     109,101,115,112,97,99,101,80,97,116,104,46,95,95,103,101,
     116,105,116,101,109,95,95,99,3,0,0,0,0,0,0,0,
     0,0,0,0,3,0,0,0,3,0,0,0,67,0,0,0,
@@ -1907,7 +1907,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     0,83,0,114,121,0,0,0,41,1,114,34,1,0,0,41,
     3,114,130,0,0,0,114,48,1,0,0,114,58,0,0,0,
     114,7,0,0,0,114,7,0,0,0,114,8,0,0,0,218,
-    11,95,95,115,101,116,105,116,101,109,95,95,180,4,0,0,
+    11,95,95,115,101,116,105,116,101,109,95,95,181,4,0,0,
     115,4,0,0,0,14,1,255,128,122,26,95,78,97,109,101,
     115,112,97,99,101,80,97,116,104,46,95,95,115,101,116,105,
     116,101,109,95,95,99,1,0,0,0,0,0,0,0,0,0,
@@ -1915,7 +1915,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     1,0,0,114,121,0,0,0,41,2,114,4,0,0,0,114,
     42,1,0,0,114,8,1,0,0,114,7,0,0,0,114,7,
     0,0,0,114,8,0,0,0,218,7,95,95,108,101,110,95,
-    95,183,4,0,0,114,46,1,0,0,122,22,95,78,97,109,
+    95,184,4,0,0,114,46,1,0,0,122,22,95,78,97,109,
     101,115,112,97,99,101,80,97,116,104,46,95,95,108,101,110,
     95,95,99,1,0,0,0,0,0,0,0,0,0,0,0,1,
     0,0,0,3,0,0,0,67,0,0,0,243,12,0,0,0,
@@ -1923,7 +1923,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     20,95,78,97,109,101,115,112,97,99,101,80,97,116,104,40,
     123,33,114,125,41,41,2,114,77,0,0,0,114,34,1,0,
     0,114,8,1,0,0,114,7,0,0,0,114,7,0,0,0,
-    114,8,0,0,0,218,8,95,95,114,101,112,114,95,95,186,
+    114,8,0,0,0,218,8,95,95,114,101,112,114,95,95,187,
     4,0,0,114,46,1,0,0,122,23,95,78,97,109,101,115,
     112,97,99,101,80,97,116,104,46,95,95,114,101,112,114,95,
     95,99,2,0,0,0,0,0,0,0,0,0,0,0,2,0,
@@ -1931,7 +1931,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     1,124,0,160,0,161,0,118,0,83,0,114,121,0,0,0,
     114,47,1,0,0,169,2,114,130,0,0,0,218,4,105,116,
     101,109,114,7,0,0,0,114,7,0,0,0,114,8,0,0,
-    0,218,12,95,95,99,111,110,116,97,105,110,115,95,95,189,
+    0,218,12,95,95,99,111,110,116,97,105,110,115,95,95,190,
     4,0,0,114,46,1,0,0,122,27,95,78,97,109,101,115,
     112,97,99,101,80,97,116,104,46,95,95,99,111,110,116,97,
     105,110,115,95,95,99,2,0,0,0,0,0,0,0,0,0,
@@ -1939,7 +1939,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     0,0,0,124,0,106,0,160,1,124,1,161,1,1,0,100,
     0,83,0,114,121,0,0,0,41,2,114,34,1,0,0,114,
     197,0,0,0,114,54,1,0,0,114,7,0,0,0,114,7,
-    0,0,0,114,8,0,0,0,114,197,0,0,0,192,4,0,
+    0,0,0,114,8,0,0,0,114,197,0,0,0,193,4,0,
     0,243,4,0,0,0,16,1,255,128,122,21,95,78,97,109,
     101,115,112,97,99,101,80,97,116,104,46,97,112,112,101,110,
     100,78,41,15,114,137,0,0,0,114,136,0,0,0,114,138,
@@ -1948,7 +1948,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     0,114,49,1,0,0,114,50,1,0,0,114,51,1,0,0,
     114,53,1,0,0,114,56,1,0,0,114,197,0,0,0,114,
     7,0,0,0,114,7,0,0,0,114,7,0,0,0,114,8,
-    0,0,0,114,32,1,0,0,134,4,0,0,115,28,0,0,
+    0,0,0,114,32,1,0,0,135,4,0,0,115,28,0,0,
     0,8,0,4,1,8,6,8,6,8,10,8,4,8,13,8,
     3,8,3,8,3,8,3,8,3,12,3,255,128,114,32,1,
     0,0,99,0,0,0,0,0,0,0,0,0,0,0,0,0,
@@ -1964,7 +1964,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     0,0,116,0,124,1,124,2,124,3,131,3,124,0,95,1,
     100,0,83,0,114,121,0,0,0,41,2,114,32,1,0,0,
     114,34,1,0,0,114,38,1,0,0,114,7,0,0,0,114,
-    7,0,0,0,114,8,0,0,0,114,223,0,0,0,198,4,
+    7,0,0,0,114,8,0,0,0,114,223,0,0,0,199,4,
     0,0,115,4,0,0,0,18,1,255,128,122,25,95,78,97,
     109,101,115,112,97,99,101,76,111,97,100,101,114,46,95,95,
     105,110,105,116,95,95,99,1,0,0,0,0,0,0,0,0,
@@ -1981,20 +1981,20 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     112,97,99,101,41,62,78,41,2,114,77,0,0,0,114,137,
     0,0,0,41,1,114,231,0,0,0,114,7,0,0,0,114,
     7,0,0,0,114,8,0,0,0,218,11,109,111,100,117,108,
-    101,95,114,101,112,114,201,4,0,0,115,4,0,0,0,12,
+    101,95,114,101,112,114,202,4,0,0,115,4,0,0,0,12,
     7,255,128,122,28,95,78,97,109,101,115,112,97,99,101,76,
     111,97,100,101,114,46,109,111,100,117,108,101,95,114,101,112,
     114,99,2,0,0,0,0,0,0,0,0,0,0,0,2,0,
     0,0,1,0,0,0,67,0,0,0,114,24,0,0,0,41,
     2,78,84,114,7,0,0,0,114,234,0,0,0,114,7,0,
     0,0,114,7,0,0,0,114,8,0,0,0,114,193,0,0,
-    0,210,4,0,0,243,4,0,0,0,4,1,255,128,122,27,
+    0,211,4,0,0,243,4,0,0,0,4,1,255,128,122,27,
     95,78,97,109,101,115,112,97,99,101,76,111,97,100,101,114,
     46,105,115,95,112,97,99,107,97,103,101,99,2,0,0,0,
     0,0,0,0,0,0,0,0,2,0,0,0,1,0,0,0,
     67,0,0,0,114,24,0,0,0,41,2,78,114,10,0,0,
     0,114,7,0,0,0,114,234,0,0,0,114,7,0,0,0,
-    114,7,0,0,0,114,8,0,0,0,114,244,0,0,0,213,
+    114,7,0,0,0,114,8,0,0,0,114,244,0,0,0,214,
     4,0,0,114,60,1,0,0,122,27,95,78,97,109,101,115,
     112,97,99,101,76,111,97,100,101,114,46,103,101,116,95,115,
     111,117,114,99,101,99,2,0,0,0,0,0,0,0,0,0,
@@ -2004,20 +2004,20 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     114,105,110,103,62,114,230,0,0,0,84,41,1,114,246,0,
     0,0,41,1,114,247,0,0,0,114,234,0,0,0,114,7,
     0,0,0,114,7,0,0,0,114,8,0,0,0,114,228,0,
-    0,0,216,4,0,0,114,57,1,0,0,122,25,95,78,97,
+    0,0,217,4,0,0,114,57,1,0,0,122,25,95,78,97,
     109,101,115,112,97,99,101,76,111,97,100,101,114,46,103,101,
     116,95,99,111,100,101,99,2,0,0,0,0,0,0,0,0,
     0,0,0,2,0,0,0,1,0,0,0,67,0,0,0,114,
     24,0,0,0,114,224,0,0,0,114,7,0,0,0,114,225,
     0,0,0,114,7,0,0,0,114,7,0,0,0,114,8,0,
-    0,0,114,226,0,0,0,219,4,0,0,114,227,0,0,0,
+    0,0,114,226,0,0,0,220,4,0,0,114,227,0,0,0,
     122,30,95,78,97,109,101,115,112,97,99,101,76,111,97,100,
     101,114,46,99,114,101,97,116,101,95,109,111,100,117,108,101,
     99,2,0,0,0,0,0,0,0,0,0,0,0,2,0,0,
     0,1,0,0,0,67,0,0,0,115,4,0,0,0,100,0,
     83,0,114,121,0,0,0,114,7,0,0,0,114,27,1,0,
     0,114,7,0,0,0,114,7,0,0,0,114,8,0,0,0,
-    114,232,0,0,0,222,4,0,0,114,60,1,0,0,122,28,
+    114,232,0,0,0,223,4,0,0,114,60,1,0,0,122,28,
     95,78,97,109,101,115,112,97,99,101,76,111,97,100,101,114,
     46,101,120,101,99,95,109,111,100,117,108,101,99,2,0,0,
     0,0,0,0,0,0,0,0,0,2,0,0,0,4,0,0,
@@ -2035,7 +2035,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     114,125,78,41,4,114,146,0,0,0,114,160,0,0,0,114,
     34,1,0,0,114,233,0,0,0,114,234,0,0,0,114,7,
     0,0,0,114,7,0,0,0,114,8,0,0,0,114,235,0,
-    0,0,225,4,0,0,115,10,0,0,0,6,7,4,1,4,
+    0,0,226,4,0,0,115,10,0,0,0,6,7,4,1,4,
     255,12,3,255,128,122,28,95,78,97,109,101,115,112,97,99,
     101,76,111,97,100,101,114,46,108,111,97,100,95,109,111,100,
     117,108,101,78,41,12,114,137,0,0,0,114,136,0,0,0,
@@ -2043,7 +2043,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     59,1,0,0,114,193,0,0,0,114,244,0,0,0,114,228,
     0,0,0,114,226,0,0,0,114,232,0,0,0,114,235,0,
     0,0,114,7,0,0,0,114,7,0,0,0,114,7,0,0,
-    0,114,8,0,0,0,114,58,1,0,0,197,4,0,0,115,
+    0,114,8,0,0,0,114,58,1,0,0,198,4,0,0,115,
     22,0,0,0,8,0,8,1,2,3,10,1,8,8,8,3,
     8,3,8,3,8,3,12,3,255,128,114,58,1,0,0,99,
     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
@@ -2080,7 +2080,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     95,99,97,99,104,101,218,5,105,116,101,109,115,114,140,0,
     0,0,114,62,1,0,0,41,2,114,128,0,0,0,218,6,
     102,105,110,100,101,114,114,7,0,0,0,114,7,0,0,0,
-    114,8,0,0,0,114,62,1,0,0,244,4,0,0,115,16,
+    114,8,0,0,0,114,62,1,0,0,245,4,0,0,115,16,
     0,0,0,22,4,8,1,10,1,10,1,8,1,2,128,4,
     252,255,128,122,28,80,97,116,104,70,105,110,100,101,114,46,
     105,110,118,97,108,105,100,97,116,101,95,99,97,99,104,101,
@@ -2100,7 +2100,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     89,0,0,0,114,149,0,0,0,114,129,0,0,0,41,2,
     114,58,0,0,0,90,4,104,111,111,107,114,7,0,0,0,
     114,7,0,0,0,114,8,0,0,0,218,11,95,112,97,116,
-    104,95,104,111,111,107,115,254,4,0,0,115,20,0,0,0,
+    104,95,104,111,111,107,115,255,4,0,0,115,20,0,0,0,
     16,3,12,1,10,1,2,1,14,1,12,1,4,1,4,2,
     2,253,255,128,122,22,80,97,116,104,70,105,110,100,101,114,
     46,95,112,97,116,104,95,104,111,111,107,115,99,2,0,0,
@@ -2132,7 +2132,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     0,0,41,3,114,209,0,0,0,114,58,0,0,0,114,66,
     1,0,0,114,7,0,0,0,114,7,0,0,0,114,8,0,
     0,0,218,20,95,112,97,116,104,95,105,109,112,111,114,116,
-    101,114,95,99,97,99,104,101,11,5,0,0,115,30,0,0,
+    101,114,95,99,97,99,104,101,12,5,0,0,115,30,0,0,
     0,8,8,2,1,12,1,12,1,6,3,2,1,12,1,4,
     4,12,253,10,1,12,1,4,1,2,253,2,250,255,128,122,
     31,80,97,116,104,70,105,110,100,101,114,46,95,112,97,116,
@@ -2150,7 +2150,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     209,0,0,0,114,150,0,0,0,114,66,1,0,0,114,151,
     0,0,0,114,152,0,0,0,114,198,0,0,0,114,7,0,
     0,0,114,7,0,0,0,114,8,0,0,0,218,16,95,108,
-    101,103,97,99,121,95,103,101,116,95,115,112,101,99,33,5,
+    101,103,97,99,121,95,103,101,116,95,115,112,101,99,34,5,
     0,0,115,20,0,0,0,10,4,16,1,10,2,4,1,8,
     1,12,1,12,1,6,1,4,1,255,128,122,27,80,97,116,
     104,70,105,110,100,101,114,46,95,108,101,103,97,99,121,95,
@@ -2182,7 +2182,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     101,95,112,97,116,104,90,5,101,110,116,114,121,114,66,1,
     0,0,114,198,0,0,0,114,152,0,0,0,114,7,0,0,
     0,114,7,0,0,0,114,8,0,0,0,218,9,95,103,101,
-    116,95,115,112,101,99,48,5,0,0,115,44,0,0,0,4,
+    116,95,115,112,101,99,49,5,0,0,115,44,0,0,0,4,
     5,8,1,14,1,2,1,10,1,8,1,10,1,14,1,12,
     2,8,1,2,1,10,1,8,1,6,1,8,1,8,1,10,
     5,2,128,12,2,6,1,4,1,255,128,122,20,80,97,116,
@@ -2209,7 +2209,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     32,1,0,0,41,6,114,209,0,0,0,114,150,0,0,0,
     114,58,0,0,0,114,213,0,0,0,114,198,0,0,0,114,
     74,1,0,0,114,7,0,0,0,114,7,0,0,0,114,8,
-    0,0,0,114,214,0,0,0,80,5,0,0,115,28,0,0,
+    0,0,0,114,214,0,0,0,81,5,0,0,115,28,0,0,
     0,8,6,6,1,14,1,8,1,4,1,10,1,6,1,4,
     1,6,3,16,1,4,1,4,2,4,2,255,128,122,20,80,
     97,116,104,70,105,110,100,101,114,46,102,105,110,100,95,115,
@@ -2229,7 +2229,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     105,110,100,95,115,112,101,99,40,41,32,105,110,115,116,101,
     97,100,46,10,10,32,32,32,32,32,32,32,32,78,114,215,
     0,0,0,114,216,0,0,0,114,7,0,0,0,114,7,0,
-    0,0,114,8,0,0,0,114,217,0,0,0,104,5,0,0,
+    0,0,114,8,0,0,0,114,217,0,0,0,105,5,0,0,
     115,10,0,0,0,12,8,8,1,4,1,6,1,255,128,122,
     22,80,97,116,104,70,105,110,100,101,114,46,102,105,110,100,
     95,109,111,100,117,108,101,99,0,0,0,0,0,0,0,0,
@@ -2261,7 +2261,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     18,102,105,110,100,95,100,105,115,116,114,105,98,117,116,105,
     111,110,115,41,3,114,131,0,0,0,114,132,0,0,0,114,
     76,1,0,0,114,7,0,0,0,114,7,0,0,0,114,8,
-    0,0,0,114,77,1,0,0,117,5,0,0,115,6,0,0,
+    0,0,0,114,77,1,0,0,118,5,0,0,115,6,0,0,
     0,12,10,16,1,255,128,122,29,80,97,116,104,70,105,110,
     100,101,114,46,102,105,110,100,95,100,105,115,116,114,105,98,
     117,116,105,111,110,115,41,1,78,41,2,78,78,41,1,78,
@@ -2271,7 +2271,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     72,1,0,0,114,75,1,0,0,114,214,0,0,0,114,217,
     0,0,0,114,77,1,0,0,114,7,0,0,0,114,7,0,
     0,0,114,7,0,0,0,114,8,0,0,0,114,61,1,0,
-    0,240,4,0,0,115,38,0,0,0,8,0,4,2,2,2,
+    0,241,4,0,0,115,38,0,0,0,8,0,4,2,2,2,
     10,1,2,9,10,1,2,12,10,1,2,21,10,1,2,14,
     12,1,2,31,12,1,2,23,12,1,2,12,14,1,255,128,
     114,61,1,0,0,99,0,0,0,0,0,0,0,0,0,0,
@@ -2316,7 +2316,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     0,102,2,86,0,1,0,113,2,100,0,83,0,114,121,0,
     0,0,114,7,0,0,0,114,28,1,0,0,169,1,114,151,
     0,0,0,114,7,0,0,0,114,8,0,0,0,114,9,0,
-    0,0,146,5,0,0,114,14,0,0,0,122,38,70,105,108,
+    0,0,147,5,0,0,114,14,0,0,0,122,38,70,105,108,
     101,70,105,110,100,101,114,46,95,95,105,110,105,116,95,95,
     46,60,108,111,99,97,108,115,62,46,60,103,101,110,101,120,
     112,114,62,114,86,0,0,0,114,116,0,0,0,78,41,7,
@@ -2328,7 +2328,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     58,0,0,0,218,14,108,111,97,100,101,114,95,100,101,116,
     97,105,108,115,90,7,108,111,97,100,101,114,115,114,200,0,
     0,0,114,7,0,0,0,114,79,1,0,0,114,8,0,0,
-    0,114,223,0,0,0,140,5,0,0,115,18,0,0,0,4,
+    0,114,223,0,0,0,141,5,0,0,115,18,0,0,0,4,
     4,12,1,26,1,6,1,10,2,6,1,8,1,12,1,255,
     128,122,19,70,105,108,101,70,105,110,100,101,114,46,95,95,
     105,110,105,116,95,95,99,1,0,0,0,0,0,0,0,0,
@@ -2338,7 +2338,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     32,100,105,114,101,99,116,111,114,121,32,109,116,105,109,101,
     46,114,116,0,0,0,78,41,1,114,81,1,0,0,114,8,
     1,0,0,114,7,0,0,0,114,7,0,0,0,114,8,0,
-    0,0,114,62,1,0,0,154,5,0,0,114,69,0,0,0,
+    0,0,114,62,1,0,0,155,5,0,0,114,69,0,0,0,
     122,28,70,105,108,101,70,105,110,100,101,114,46,105,110,118,
     97,108,105,100,97,116,101,95,99,97,99,104,101,115,99,2,
     0,0,0,0,0,0,0,0,0,0,0,3,0,0,0,3,
@@ -2361,7 +2361,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     41,3,114,214,0,0,0,114,151,0,0,0,114,189,0,0,
     0,41,3,114,130,0,0,0,114,150,0,0,0,114,198,0,
     0,0,114,7,0,0,0,114,7,0,0,0,114,8,0,0,
-    0,114,148,0,0,0,160,5,0,0,115,10,0,0,0,10,
+    0,114,148,0,0,0,161,5,0,0,115,10,0,0,0,10,
     7,8,1,8,1,16,1,255,128,122,22,70,105,108,101,70,
     105,110,100,101,114,46,102,105,110,100,95,108,111,97,100,101,
     114,99,6,0,0,0,0,0,0,0,0,0,0,0,7,0,
@@ -2372,7 +2372,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     199,0,0,0,114,150,0,0,0,114,58,0,0,0,90,4,
     115,109,115,108,114,213,0,0,0,114,151,0,0,0,114,7,
     0,0,0,114,7,0,0,0,114,8,0,0,0,114,75,1,
-    0,0,172,5,0,0,115,10,0,0,0,10,1,8,1,2,
+    0,0,173,5,0,0,115,10,0,0,0,10,1,8,1,2,
     1,6,255,255,128,122,20,70,105,108,101,70,105,110,100,101,
     114,46,95,103,101,116,95,115,112,101,99,78,99,3,0,0,
     0,0,0,0,0,0,0,0,0,14,0,0,0,8,0,0,
@@ -2427,7 +2427,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     110,105,116,95,102,105,108,101,110,97,109,101,90,9,102,117,
     108,108,95,112,97,116,104,114,198,0,0,0,114,7,0,0,
     0,114,7,0,0,0,114,8,0,0,0,114,214,0,0,0,
-    177,5,0,0,115,80,0,0,0,4,5,14,1,2,1,24,
+    178,5,0,0,115,80,0,0,0,4,5,14,1,2,1,24,
     1,14,1,6,1,10,1,8,1,6,1,6,2,6,1,10,
     1,6,2,4,1,8,2,12,1,14,1,8,1,10,1,8,
     1,24,1,2,255,8,5,14,2,16,1,16,1,14,1,10,
@@ -2458,7 +2458,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     104,0,124,0,93,12,125,1,124,1,160,0,161,0,146,2,
     113,4,83,0,114,7,0,0,0,41,1,114,117,0,0,0,
     41,2,114,5,0,0,0,90,2,102,110,114,7,0,0,0,
-    114,7,0,0,0,114,8,0,0,0,114,13,0,0,0,254,
+    114,7,0,0,0,114,8,0,0,0,114,13,0,0,0,255,
     5,0,0,115,4,0,0,0,20,0,255,128,122,41,70,105,
     108,101,70,105,110,100,101,114,46,95,102,105,108,108,95,99,
     97,99,104,101,46,60,108,111,99,97,108,115,62,46,60,115,
@@ -2476,7 +2476,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     114,55,1,0,0,114,128,0,0,0,114,39,1,0,0,114,
     29,1,0,0,90,8,110,101,119,95,110,97,109,101,114,7,
     0,0,0,114,7,0,0,0,114,8,0,0,0,114,86,1,
-    0,0,225,5,0,0,115,40,0,0,0,6,2,2,1,22,
+    0,0,226,5,0,0,115,40,0,0,0,6,2,2,1,22,
     1,18,1,6,3,12,3,12,1,6,7,8,1,16,1,4,
     1,18,1,4,2,12,1,6,1,12,1,20,1,4,255,2,
     233,255,128,122,22,70,105,108,101,70,105,110,100,101,114,46,
@@ -2515,14 +2515,14 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     169,2,114,209,0,0,0,114,85,1,0,0,114,7,0,0,
     0,114,8,0,0,0,218,24,112,97,116,104,95,104,111,111,
     107,95,102,111,114,95,70,105,108,101,70,105,110,100,101,114,
-    10,6,0,0,115,8,0,0,0,8,2,12,1,16,1,255,
+    11,6,0,0,115,8,0,0,0,8,2,12,1,16,1,255,
     128,122,54,70,105,108,101,70,105,110,100,101,114,46,112,97,
     116,104,95,104,111,111,107,46,60,108,111,99,97,108,115,62,
     46,112,97,116,104,95,104,111,111,107,95,102,111,114,95,70,
     105,108,101,70,105,110,100,101,114,78,114,7,0,0,0,41,
     3,114,209,0,0,0,114,85,1,0,0,114,91,1,0,0,
     114,7,0,0,0,114,90,1,0,0,114,8,0,0,0,218,
-    9,112,97,116,104,95,104,111,111,107,0,6,0,0,115,6,
+    9,112,97,116,104,95,104,111,111,107,1,6,0,0,115,6,
     0,0,0,14,10,4,6,255,128,122,20,70,105,108,101,70,
     105,110,100,101,114,46,112,97,116,104,95,104,111,111,107,99,
     1,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,
@@ -2530,7 +2530,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     122,16,70,105,108,101,70,105,110,100,101,114,40,123,33,114,
     125,41,41,2,114,77,0,0,0,114,58,0,0,0,114,8,
     1,0,0,114,7,0,0,0,114,7,0,0,0,114,8,0,
-    0,0,114,53,1,0,0,18,6,0,0,114,46,1,0,0,
+    0,0,114,53,1,0,0,19,6,0,0,114,46,1,0,0,
     122,19,70,105,108,101,70,105,110,100,101,114,46,95,95,114,
     101,112,114,95,95,41,1,78,41,15,114,137,0,0,0,114,
     136,0,0,0,114,138,0,0,0,114,139,0,0,0,114,223,
@@ -2538,7 +2538,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     0,0,114,148,0,0,0,114,75,1,0,0,114,214,0,0,
     0,114,86,1,0,0,114,221,0,0,0,114,92,1,0,0,
     114,53,1,0,0,114,7,0,0,0,114,7,0,0,0,114,
-    7,0,0,0,114,8,0,0,0,114,78,1,0,0,131,5,
+    7,0,0,0,114,8,0,0,0,114,78,1,0,0,132,5,
     0,0,115,26,0,0,0,8,0,4,2,8,7,8,14,4,
     4,8,2,8,12,10,5,8,48,2,31,10,1,12,17,255,
     128,114,78,1,0,0,99,4,0,0,0,0,0,0,0,0,
@@ -2562,7 +2562,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     97,109,101,90,9,99,112,97,116,104,110,97,109,101,114,151,
     0,0,0,114,198,0,0,0,114,7,0,0,0,114,7,0,
     0,0,114,8,0,0,0,218,14,95,102,105,120,95,117,112,
-    95,109,111,100,117,108,101,24,6,0,0,115,38,0,0,0,
+    95,109,111,100,117,108,101,25,6,0,0,115,38,0,0,0,
     10,2,10,1,4,1,4,1,8,1,8,1,12,1,10,2,
     4,1,14,1,2,1,8,1,8,1,8,1,14,1,12,1,
     6,2,2,254,255,128,114,97,1,0,0,99,0,0,0,0,
@@ -2582,7 +2582,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     0,0,114,101,0,0,0,41,3,90,10,101,120,116,101,110,
     115,105,111,110,115,90,6,115,111,117,114,99,101,90,8,98,
     121,116,101,99,111,100,101,114,7,0,0,0,114,7,0,0,
-    0,114,8,0,0,0,114,195,0,0,0,47,6,0,0,115,
+    0,114,8,0,0,0,114,195,0,0,0,48,6,0,0,115,
     10,0,0,0,12,5,8,1,8,1,10,1,255,128,114,195,
     0,0,0,99,1,0,0,0,0,0,0,0,0,0,0,0,
     1,0,0,0,1,0,0,0,67,0,0,0,115,8,0,0,
@@ -2591,7 +2591,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     114,97,112,95,109,111,100,117,108,101,114,7,0,0,0,114,
     7,0,0,0,114,8,0,0,0,218,21,95,115,101,116,95,
     98,111,111,116,115,116,114,97,112,95,109,111,100,117,108,101,
-    58,6,0,0,115,4,0,0,0,8,2,255,128,114,100,1,
+    59,6,0,0,115,4,0,0,0,8,2,255,128,114,100,1,
     0,0,99,1,0,0,0,0,0,0,0,0,0,0,0,2,
     0,0,0,4,0,0,0,67,0,0,0,115,50,0,0,0,
     116,0,124,0,131,1,1,0,116,1,131,0,125,1,116,2,
@@ -2606,7 +2606,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     114,197,0,0,0,114,61,1,0,0,41,2,114,99,1,0,
     0,90,17,115,117,112,112,111,114,116,101,100,95,108,111,97,
     100,101,114,115,114,7,0,0,0,114,7,0,0,0,114,8,
-    0,0,0,218,8,95,105,110,115,116,97,108,108,63,6,0,
+    0,0,0,218,8,95,105,110,115,116,97,108,108,64,6,0,
     0,115,10,0,0,0,8,2,6,1,20,1,16,1,255,128,
     114,102,1,0,0,41,1,114,75,0,0,0,41,1,78,41,
     3,78,78,78,41,2,114,0,0,0,0,114,0,0,0,0,
@@ -2649,7 +2649,7 @@ const unsigned char _Py_M__importlib_bootstrap_external[] = {
     2,4,3,10,1,6,2,22,2,8,1,10,1,14,1,4,
     4,4,1,2,1,2,1,4,255,8,4,6,16,8,3,8,
     5,8,5,8,6,8,6,8,12,8,10,8,9,8,5,8,
-    7,10,9,10,22,0,127,16,24,12,1,4,2,4,1,6,
+    7,10,9,10,22,0,127,16,25,12,1,4,2,4,1,6,
     2,6,1,10,1,8,2,6,2,8,2,16,2,8,71,8,
     40,8,19,8,12,8,12,8,31,8,17,8,33,8,28,10,
     24,10,13,10,10,8,11,6,14,4,3,2,1,12,255,14,
diff --git a/Python/opcode_targets.h b/Python/opcode_targets.h
index 8495871..692442a 100644
--- a/Python/opcode_targets.h
+++ b/Python/opcode_targets.h
@@ -29,11 +29,11 @@ static void *opcode_targets[256] = {
     &&TARGET_BINARY_TRUE_DIVIDE,
     &&TARGET_INPLACE_FLOOR_DIVIDE,
     &&TARGET_INPLACE_TRUE_DIVIDE,
-    &&_unknown_opcode,
-    &&_unknown_opcode,
-    &&_unknown_opcode,
-    &&_unknown_opcode,
-    &&_unknown_opcode,
+    &&TARGET_GET_LEN,
+    &&TARGET_MATCH_MAPPING,
+    &&TARGET_MATCH_SEQUENCE,
+    &&TARGET_MATCH_KEYS,
+    &&TARGET_COPY_DICT_WITHOUT_KEYS,
     &&_unknown_opcode,
     &&_unknown_opcode,
     &&_unknown_opcode,
@@ -151,7 +151,7 @@ static void *opcode_targets[256] = {
     &&_unknown_opcode,
     &&_unknown_opcode,
     &&_unknown_opcode,
-    &&_unknown_opcode,
+    &&TARGET_MATCH_CLASS,
     &&_unknown_opcode,
     &&TARGET_SETUP_ASYNC_WITH,
     &&TARGET_FORMAT_VALUE,
diff --git a/Python/pystate.c b/Python/pystate.c
index 1623bab..e7c085d 100644
--- a/Python/pystate.c
+++ b/Python/pystate.c
@@ -308,6 +308,8 @@ interpreter_clear(PyInterpreterState *interp, PyThreadState *tstate)
     Py_CLEAR(interp->importlib);
     Py_CLEAR(interp->import_func);
     Py_CLEAR(interp->dict);
+    Py_CLEAR(interp->map_abc);
+    Py_CLEAR(interp->seq_abc);
 #ifdef HAVE_FORK
     Py_CLEAR(interp->before_forkers);
     Py_CLEAR(interp->after_forkers_parent);
diff --git a/Python/symtable.c b/Python/symtable.c
index cce1b1b..10a47d1 100644
--- a/Python/symtable.c
+++ b/Python/symtable.c
@@ -207,6 +207,7 @@ static int symtable_visit_argannotations(struct symtable *st, asdl_arg_seq *args
 static int symtable_implicit_arg(struct symtable *st, int pos);
 static int symtable_visit_annotations(struct symtable *st, arguments_ty, expr_ty);
 static int symtable_visit_withitem(struct symtable *st, withitem_ty item);
+static int symtable_visit_match_case(struct symtable *st, match_case_ty m);
 
 
 static identifier top = NULL, lambda = NULL, genexpr = NULL,
@@ -239,6 +240,7 @@ symtable_new(void)
         goto fail;
     st->st_cur = NULL;
     st->st_private = NULL;
+    st->in_pattern = 0;
     return st;
  fail:
     PySymtable_Free(st);
@@ -1294,6 +1296,10 @@ symtable_visit_stmt(struct symtable *st, stmt_ty s)
         if (s->v.If.orelse)
             VISIT_SEQ(st, stmt, s->v.If.orelse);
         break;
+    case Match_kind:
+        VISIT(st, expr, s->v.Match.subject);
+        VISIT_SEQ(st, match_case, s->v.Match.cases);
+        break;
     case Raise_kind:
         if (s->v.Raise.exc) {
             VISIT(st, expr, s->v.Raise.exc);
@@ -1648,6 +1654,13 @@ symtable_visit_expr(struct symtable *st, expr_ty e)
             VISIT(st, expr, e->v.Slice.step)
         break;
     case Name_kind:
+        // Don't make "_" a local when used in a pattern:
+        if (st->in_pattern &&
+            e->v.Name.ctx == Store &&
+            _PyUnicode_EqualToASCIIString(e->v.Name.id, "_"))
+        {
+            break;
+        }
         if (!symtable_add_def(st, e->v.Name.id,
                               e->v.Name.ctx == Load ? USE : DEF_LOCAL))
             VISIT_QUIT(st, 0);
@@ -1667,6 +1680,13 @@ symtable_visit_expr(struct symtable *st, expr_ty e)
     case Tuple_kind:
         VISIT_SEQ(st, expr, e->v.Tuple.elts);
         break;
+    case MatchAs_kind:
+        VISIT(st, expr, e->v.MatchAs.pattern);
+        symtable_add_def(st, e->v.MatchAs.name, DEF_LOCAL);
+        break;
+    case MatchOr_kind:
+        VISIT_SEQ(st, expr, e->v.MatchOr.patterns);
+        break;
     }
     VISIT_QUIT(st, 1);
 }
@@ -1785,6 +1805,20 @@ symtable_visit_withitem(struct symtable *st, withitem_ty item)
     return 1;
 }
 
+static int
+symtable_visit_match_case(struct symtable *st, match_case_ty m)
+{
+    assert(!st->in_pattern);
+    st->in_pattern = 1;
+    VISIT(st, expr, m->pattern);
+    assert(st->in_pattern);
+    st->in_pattern = 0;
+    if (m->guard) {
+        VISIT(st, expr, m->guard);
+    }
+    VISIT_SEQ(st, stmt, m->body);
+    return 1;
+}
 
 static int
 symtable_visit_alias(struct symtable *st, alias_ty a)