diff options
| -rw-r--r-- | Grammar/python.gram | 2 | ||||
| -rw-r--r-- | Lib/test/test_ast.py | 8 | ||||
| -rw-r--r-- | Misc/NEWS.d/next/Core and Builtins/2022-07-18-05-10-29.gh-issue-94949.OsZ7_s.rst | 1 | ||||
| -rw-r--r-- | Parser/parser.c | 2 |
4 files changed, 11 insertions, 2 deletions
diff --git a/Grammar/python.gram b/Grammar/python.gram index 783f23f..7570748 100644 --- a/Grammar/python.gram +++ b/Grammar/python.gram @@ -192,7 +192,7 @@ for_stmt[stmt_ty]: with_stmt[stmt_ty]: | invalid_with_stmt_indent | 'with' '(' a[asdl_withitem_seq*]=','.with_item+ ','? ')' ':' b=block { - _PyAST_With(a, b, NULL, EXTRA) } + CHECK_VERSION(stmt_ty, 9, "Parenthesized context managers are", _PyAST_With(a, b, NULL, EXTRA)) } | 'with' a[asdl_withitem_seq*]=','.with_item+ ':' tc=[TYPE_COMMENT] b=block { _PyAST_With(a, b, NEW_TYPE_COMMENT(p, tc), EXTRA) } | ASYNC 'with' '(' a[asdl_withitem_seq*]=','.with_item+ ','? ')' ':' b=block { diff --git a/Lib/test/test_ast.py b/Lib/test/test_ast.py index 9dcc860..eb86109 100644 --- a/Lib/test/test_ast.py +++ b/Lib/test/test_ast.py @@ -686,6 +686,14 @@ class AST_Tests(unittest.TestCase): expressions[0] = f"expr = {ast.expr.__subclasses__()[0].__doc__}" self.assertCountEqual(ast.expr.__doc__.split("\n"), expressions) + def test_parenthesized_with_feature_version(self): + ast.parse('with (CtxManager() as example): ...', feature_version=(3, 10)) + # While advertised as a feature in Python 3.10, this was allowed starting 3.9 + ast.parse('with (CtxManager() as example): ...', feature_version=(3, 9)) + with self.assertRaises(SyntaxError): + ast.parse('with (CtxManager() as example): ...', feature_version=(3, 8)) + ast.parse('with CtxManager() as example: ...', feature_version=(3, 8)) + def test_issue40614_feature_version(self): ast.parse('f"{x=}"', feature_version=(3, 8)) with self.assertRaises(SyntaxError): diff --git a/Misc/NEWS.d/next/Core and Builtins/2022-07-18-05-10-29.gh-issue-94949.OsZ7_s.rst b/Misc/NEWS.d/next/Core and Builtins/2022-07-18-05-10-29.gh-issue-94949.OsZ7_s.rst new file mode 100644 index 0000000..bc452d4 --- /dev/null +++ b/Misc/NEWS.d/next/Core and Builtins/2022-07-18-05-10-29.gh-issue-94949.OsZ7_s.rst @@ -0,0 +1 @@ +:func:`ast.parse` will no longer parse parenthesized context managers when passed ``feature_version`` less than ``(3, 9)``. Patch by Shantanu Jain. diff --git a/Parser/parser.c b/Parser/parser.c index 7116af4..c0080e80 100644 --- a/Parser/parser.c +++ b/Parser/parser.c @@ -4657,7 +4657,7 @@ with_stmt_rule(Parser *p) 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 = _PyAST_With ( a , b , NULL , EXTRA ); + _res = CHECK_VERSION ( stmt_ty , 9 , "Parenthesized context managers are" , _PyAST_With ( a , b , NULL , EXTRA ) ); if (_res == NULL && PyErr_Occurred()) { p->error_indicator = 1; p->level--; |