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* bpo-40941: Fix stackdepth compiler warnings (GH-22377)Victor Stinner2020-09-231-4/+4
| | | | Explicitly cast a difference of two pointers to int: PyFrameObject.f_stackdepth is an int.
* bpo-40941: Fix fold_tuple_on_constants() compiler warnings (GH-22378)Victor Stinner2020-09-231-4/+2
| | | | | | Add explicit casts to fix compiler warnings in fold_tuple_on_constants(). The limit of constants per code is now INT_MAX, rather than UINT_MAX.
* bpo-41834: Remove _Py_CheckRecursionLimit variable (GH-22359)Victor Stinner2020-09-231-13/+3
| | | | | | | | | | Remove the global _Py_CheckRecursionLimit variable: it has been replaced by ceval.recursion_limit of the PyInterpreterState structure. There is no need to keep the variable for the stable ABI, since Py_EnterRecursiveCall() and Py_LeaveRecursiveCall() were not usable in Python 3.8 and older: these macros accessed PyThreadState members, whereas the PyThreadState structure is opaque in the limited C API.
* bpo-41819: Fix compiler warning in init_dump_ascii_wstr() (GH-22332)Samuel Marks2020-09-211-1/+1
| | | | | Fix the compiler warning: format specifies type `wint_t` (aka `int`) but the argument has type `unsigned int`
* bpo-41756: Introduce PyGen_Send C API (GH-22196)Vladimir Matveev2020-09-191-17/+41
| | | | | | | | | | | | | The new API allows to efficiently send values into native generators and coroutines avoiding use of StopIteration exceptions to signal returns. ceval loop now uses this method instead of the old "private" _PyGen_Send C API. This translates to 1.6x increased performance of 'await' calls in micro-benchmarks. Aside from CPython core improvements, this new API will also allow Cython to generate more efficient code, benefiting high-performance IO libraries like uvloop.
* bpo-41746: Add type information to asdl_seq objects (GH-22223)Pablo Galindo2020-09-168-414/+398
| | | | | | | | | | | | | * Add new capability to the PEG parser to type variable assignments. For instance: ``` | a[asdl_stmt_seq*]=';'.small_stmt+ [';'] NEWLINE { a } ``` * Add new sequence types from the asdl definition (automatically generated) * Make `asdl_seq` type a generic aliasing pointer type. * Create a new `asdl_generic_seq` for the generic case using `void*`. * The old `asdl_seq_GET`/`ast_seq_SET` macros now are typed. * New `asdl_seq_GET_UNTYPED`/`ast_seq_SET_UNTYPED` macros for dealing with generic sequences. * Changes all possible `asdl_seq` types to use specific versions everywhere.
* bpo-41631: _ast module uses again a global state (#21961)Victor Stinner2020-09-152-253/+28
| | | | | | | | | | | | | | | | | Partially revert commit ac46eb4ad6662cf6d771b20d8963658b2186c48c: "bpo-38113: Update the Python-ast.c generator to PEP384 (gh-15957)". Using a module state per module instance is causing subtle practical problems. For example, the Mercurial project replaces the __import__() function to implement lazy import, whereas Python expected that "import _ast" always return a fully initialized _ast module. Add _PyAST_Fini() to clear the state at exit. The _ast module has no state (set _astmodule.m_size to 0). Remove astmodule_traverse(), astmodule_clear() and astmodule_free() functions.
* Fix compiler warnings in init_dump_ascii_wstr() (GH-22150)Victor Stinner2020-09-091-1/+1
| | | | | | | | | | | | | | | | | Fix GCC 9.3 (using -O3) warnings on x86: initconfig.c: In function ‘init_dump_ascii_wstr’: initconfig.c:2679:34: warning: format ‘%lc’ expects argument of type ‘wint_t’, but argument 2 has type ‘wchar_t’ {aka ‘long int’} 2679 | PySys_WriteStderr("%lc", ch); initconfig.c:2682:38: warning: format ‘%x’ expects argument of type ‘unsigned int’, but argument 2 has type ‘wchar_t’ {aka ‘long int’} 2682 | PySys_WriteStderr("\\x%02x", ch); initconfig.c:2686:38: warning: format ‘%x’ expects argument of type ‘unsigned int’, but argument 2 has type ‘wchar_t’ {aka ‘long int’} 2686 | PySys_WriteStderr("\\U%08x", ch); initconfig.c:2690:38: warning: format ‘%x’ expects argument of type ‘unsigned int’, but argument 2 has type ‘wchar_t’ {aka ‘long int’} 2690 | PySys_WriteStderr("\\u%04x", ch);
* bpo-41525: Make the Python program help ASCII-only (GH-21836)Serhiy Storchaka2020-09-091-1/+1
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* bpo-1635741: Port mashal module to multi-phase init (#22149)Victor Stinner2020-09-081-16/+18
| | | | Port the 'mashal' extension module to the multi-phase initialization API (PEP 489).
* bpo-41681: Fix for `f-string/str.format` error description when using 2 `,` ↵han-solo2020-09-011-2/+4
| | | | | | | in format specifier (GH-22036) * Fixed `f-string/str.format` error description when using two `,` in format specifier. Co-authored-by: millefalcon <hanish0019@hmail.com>
* closes bpo-41533: Fix a potential memory leak when allocating a stack (GH-21847)Tony Solomonik2020-08-301-0/+3
| | | | Free the stack allocated in va_build_stack if do_mkstack fails and the stack is not a small_stack
* bpo-41524: fix pointer bug in PyOS_mystr{n}icmp (GH-21845)wmeehan2020-08-271-7/+11
| | | | | | | | | | | | | | * bpo-41524: fix pointer bug in PyOS_mystr{n}icmp The existing implementations of PyOS_mystrnicmp and PyOS_mystricmp can increment pointers beyond the end of a string. This commit fixes those cases by moving the mutation out of the condition. * 📜🤖 Added by blurb_it. * Address comments Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
* bpo-1635741: Explict GC collect after PyInterpreterState_Clear() (GH-21902)Hai Shi2020-08-171-4/+2
| | | | Fix a reference cycle by triggering an explicit GC collection after calling PyInterpreterState_Clear().
* bpo-41531: Fix compilation of dict literals with more than 0xFFFF elements ↵Pablo Galindo2020-08-131-1/+1
| | | | (GH-21850)
* bpo-1635741: Clean sysdict and builtins of interpreter at exit (GH-21605)Hai Shi2020-08-121-2/+8
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* bpo-41463: Generate information about jumps from 'opcode.py' rather than ↵Mark Shannon2020-08-041-59/+73
| | | | | duplicating it in 'compile.c' (GH-21714) Generate information about jumps from 'opcode.py' rather than duplicate it in 'compile.c'
* bpo-41323: Perform 'peephole' optimizations directly on the CFG. (GH-21517)Mark Shannon2020-07-305-4562/+4349
| | | * Move 'peephole' optimizations into compile.c and perform them directly on the CFG.
* bpo-41340: Removed fallback implementation for strdup (GH-21634)wasiher2020-07-271-12/+0
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* bpo-40941: Unify implicit and explicit state in the frame and generator ↵Mark Shannon2020-07-171-16/+27
| | | | | | | objects into a single value. (GH-20803) * Merge gen and frame state variables into one. * Replace stack pointer with depth in PyFrameObject. Makes code easier to read and saves a word of memory.
* Fix -Wstrict-prototypes warning in thread_pthread.h. (GH-21477)Benjamin Peterson2020-07-151-1/+1
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* bpo-36346: Make using the legacy Unicode C API optional (GH-21437)Serhiy Storchaka2020-07-102-6/+27
| | | | Add compile time option USE_UNICODE_WCHAR_CACHE. Setting it to 0 makes the interpreter not using the wchar_t cache and the legacy Unicode C API.
* bpo-29778: test_embed tests the path configuration (GH-21306)Victor Stinner2020-07-072-3/+85
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* bpo-41218: Only mark async code with CO_COROUTINE. (#21357)Matthias Bussonnier2020-07-061-4/+6
| | | | | 3.8.3 had a regression where compiling with ast.PyCF_ALLOW_TOP_LEVEL_AWAIT woudl agressively mark things are coroutine even if there were not.
* bpo-29778: Ensure python3.dll is loaded from correct locations when Python ↵Steve Dower2020-07-062-48/+0
| | | | | | is embedded (GH-21297) Also enables using debug build of `python3_d.dll` Reference: CVE-2020-15523
* bpo-41204: Fix compiler warning in ast_type_init() (GH-21307)Victor Stinner2020-07-041-4/+5
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* bpo-41162: Clear audit hooks later during finalization (GH-21222)Konge2020-07-031-3/+7
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* bpo-41180: Audit code.__new__ when unmarshalling (GH-21271)tkmikan2020-07-031-0/+6
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* bpo-41194: Convert _ast extension to PEP 489 (GH-21293)Victor Stinner2020-07-031-149/+174
| | | | Convert the _ast extension module to PEP 489 "Multiphase initialization". Replace the global _ast state with a module state.
* bpo-41194: The _ast module cannot be loaded more than once (GH-21290)Victor Stinner2020-07-031-38/+32
| | | | | | | | Fix a crash in the _ast module: it can no longer be loaded more than once. It now uses a global state rather than a module state. * Move _ast module state: use a global state instead. * Set _astmodule.m_size to -1, so the extension cannot be loaded more than once.
* bpo-41194: Pass module state in Python-ast.c (GH-21284)Victor Stinner2020-07-031-1990/+1890
| | | | | | Rework asdl_c.py to pass the module state to functions in Python-ast.c, instead of using astmodulestate_global. Handle also PyState_AddModule() failure in init_types().
* bpo-1635741: Release Unicode interned strings at exit (GH-21269)Victor Stinner2020-07-011-0/+1
| | | | | | | * PyUnicode_InternInPlace() now ensures that interned strings are ready. * Add _PyUnicode_ClearInterned(). * Py_Finalize() now releases Unicode interned strings: call _PyUnicode_ClearInterned().
* bpo-40521: Cleanup finalize_interp_types() (GH-21265)Victor Stinner2020-07-011-2/+2
| | | | Remove the now unused is_main_interp parameter of finalize_interp_types().
* bpo-23427: Add sys.orig_argv attribute (GH-20729)Victor Stinner2020-06-292-8/+9
| | | | | | | Add sys.orig_argv attribute: the list of the original command line arguments passed to the Python executable. Rename also PyConfig._orig_argv to PyConfig.orig_argv and document it.
* bpo-39151: Simplify DFS in the assembler (GH-17733)Pablo Galindo2020-06-281-33/+18
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* bpo-41076: Pre-feed the parser with the f-string expression location (GH-21054)Lysandros Nikolaou2020-06-272-2400/+2400
| | | This commit changes the parsing of f-string expressions with the new parser. The parser gets pre-fed with the location of the expression itself (not the f-string, which was what we were doing before). This allows us to completely skip the shifting of the AST nodes after the parsing is completed.
* bpo-40521: Optimize PyBytes_FromStringAndSize(str, 0) (GH-21142)Victor Stinner2020-06-251-0/+5
| | | | | | | | | | | | | | | | Always create the empty bytes string singleton. Optimize PyBytes_FromStringAndSize(str, 0): it no longer has to check if the empty string singleton was created or not, it is always available. Add functions: * _PyBytes_Init() * bytes_get_empty(), bytes_new_empty() * bytes_create_empty_string_singleton() * unicode_create_empty_string_singleton() _Py_unicode_state: rename empty structure member to empty_string.
* bpo-40521: Always create the empty tuple singleton (GH-21116)Victor Stinner2020-06-241-1/+8
| | | | | | | | | | | Py_InitializeFromConfig() now always creates the empty tuple singleton as soon as possible. Optimize PyTuple_New(0): it no longer has to check if the empty tuple was created or not, it is always creatd. * Add tuple_create_empty_tuple_singleton() function. * Add tuple_get_empty() function. * Remove state parameter of tuple_alloc().
* bpo-41094: Fix decoding errors with audit when open files. (GH-21095)Serhiy Storchaka2020-06-241-4/+19
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* bpo-40521: Fix _PyContext_Fini() (GH-21103)Victor Stinner2020-06-241-1/+3
| | | Only clear _token_missing in the main interpreter.
* bpo-40521: Make empty Unicode string per interpreter (GH-21096)Victor Stinner2020-06-231-5/+3
| | | Each interpreter now has its own empty Unicode string singleton.
* bpo-40521: Make MemoryError free list per interpreter (GH-21086)Victor Stinner2020-06-231-5/+2
| | | | | | | Each interpreter now has its own MemoryError free list: it is not longer shared by all interpreters. Add _Py_exc_state structure and PyInterpreterState.exc_state member. Move also errnomap into _Py_exc_state.
* bpo-40521: Empty frozenset is no longer a singleton (GH-21085)Raymond Hettinger2020-06-231-1/+0
| | | | | | | | | * Revert "bpo-40521: Make the empty frozenset per interpreter (GH-21068)" This reverts commit 261cfedf7657a515e04428bba58eba2a9bb88208. * bpo-40521: Empty frozensets are no longer singletons * Complete the removal of the frozenset singleton
* bpo-40521: Cleanup code of free lists (GH-21082)Victor Stinner2020-06-231-4/+10
| | | Add get_xxx_state() function to factorize duplicated code.
* Call _PyWarnings_InitState() in subinterpreters (GH-21078)Victor Stinner2020-06-231-11/+9
| | | | Py_InitializeFromConfig() now calls also _PyWarnings_InitState() in subinterpreters.
* bpo-40521: Make bytes singletons per interpreter (GH-21074)Victor Stinner2020-06-231-3/+1
| | | | | | Each interpreter now has its own empty bytes string and single byte character singletons. Replace STRINGLIB_EMPTY macro with STRINGLIB_GET_EMPTY() macro.
* bpo-40521: Make the empty frozenset per interpreter (GH-21068)Victor Stinner2020-06-231-3/+1
| | | Each interpreter now has its own empty frozenset singleton.
* bpo-40521: Make dict free lists per-interpreter (GH-20645)Victor Stinner2020-06-231-3/+1
| | | | | | | | | | | Each interpreter now has its own dict free list: * Move dict free lists into PyInterpreterState. * Move PyDict_MAXFREELIST define to pycore_interp.h * Add _Py_dict_state structure. * Add tstate parameter to _PyDict_ClearFreeList() and _PyDict_Fini(). * In debug mode, ensure that the dict free lists are not used after _PyDict_Fini() is called. * Remove "#ifdef EXPERIMENTAL_ISOLATED_SUBINTERPRETERS".
* bpo-41078: Fix bltinmodule.c with Py_TRACE_REFS (GH-21058)Victor Stinner2020-06-221-0/+1
| | | | Add pycore_object.h include to fix bltinmodule.c when Py_TRACE_REFS macro is defined.
* bpo-41078: Rename pycore_tupleobject.h to pycore_tuple.h (GH-21056)Victor Stinner2020-06-224-22/+21
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