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* gh-101476: Use _PyType_GetModuleState where applicable (#102188)Erlend E. Aasland2023-02-241-1/+1
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* gh-99537: Use Py_SETREF(var, NULL) in C code (#99687)Victor Stinner2022-11-231-2/+1
| | | Replace "Py_DECREF(var); var = NULL;" with "Py_SETREF(var, NULL);".
* gh-99300: Use Py_NewRef() in Modules/ directory (#99466)Victor Stinner2022-11-141-12/+6
| | | | Replace Py_INCREF() and Py_XINCREF() with Py_NewRef() and Py_XNewRef() in test C files of the Modules/ directory.
* gh-95324: Emit a warning if an object doesn't call PyObject_GC_UnTrack ↵Pablo Galindo Salgado2022-07-271-0/+1
| | | | during deallocation in debug mode (#95325)
* bpo-46541: Replace core use of _Py_IDENTIFIER() with statically initialized ↵Eric Snow2022-02-081-28/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | global objects. (gh-30928) We're no longer using _Py_IDENTIFIER() (or _Py_static_string()) in any core CPython code. It is still used in a number of non-builtin stdlib modules. The replacement is: PyUnicodeObject (not pointer) fields under _PyRuntimeState, statically initialized as part of _PyRuntime. A new _Py_GET_GLOBAL_IDENTIFIER() macro facilitates lookup of the fields (along with _Py_GET_GLOBAL_STRING() for non-identifier strings). https://bugs.python.org/issue46541#msg411799 explains the rationale for this change. The core of the change is in: * (new) Include/internal/pycore_global_strings.h - the declarations for the global strings, along with the macros * Include/internal/pycore_runtime_init.h - added the static initializers for the global strings * Include/internal/pycore_global_objects.h - where the struct in pycore_global_strings.h is hooked into _PyRuntimeState * Tools/scripts/generate_global_objects.py - added generation of the global string declarations and static initializers I've also added a --check flag to generate_global_objects.py (along with make check-global-objects) to check for unused global strings. That check is added to the PR CI config. The remainder of this change updates the core code to use _Py_GET_GLOBAL_IDENTIFIER() instead of _Py_IDENTIFIER() and the related _Py*Id functions (likewise for _Py_GET_GLOBAL_STRING() instead of _Py_static_string()). This includes adding a few functions where there wasn't already an alternative to _Py*Id(), replacing the _Py_Identifier * parameter with PyObject *. The following are not changed (yet): * stop using _Py_IDENTIFIER() in the stdlib modules * (maybe) get rid of _Py_IDENTIFIER(), etc. entirely -- this may not be doable as at least one package on PyPI using this (private) API * (maybe) intern the strings during runtime init https://bugs.python.org/issue46541
* bpo-46417: Add _PyType_GetSubclasses() function (GH-30761)Victor Stinner2022-01-211-9/+9
| | | | | | | | | | | | | | Add a new _PyType_GetSubclasses() function to get type's subclasses. _PyType_GetSubclasses(type) returns a list which holds strong refererences to subclasses. It is safer than iterating on type->tp_subclasses which yields weak references and can be modified in the loop. _PyType_GetSubclasses(type) now holds a reference to the tp_subclasses dict while creating the list of subclasses. set_collection_flag_recursive() of _abc.c now uses _PyType_GetSubclasses().
* bpo-43974: Move Py_BUILD_CORE_MODULE into module code (GH-29157)Christian Heimes2021-10-221-0/+3
| | | | | | | | | | | | | | setup.py no longer defines Py_BUILD_CORE_MODULE. Instead every module defines the macro before #include "Python.h" unless Py_BUILD_CORE_BUILTIN is already defined. Py_BUILD_CORE_BUILTIN is defined for every module that is built by Modules/Setup. The PR also simplifies Modules/Setup. Makefile and makesetup already define Py_BUILD_CORE_BUILTIN and include Modules/internal for us. Signed-off-by: Christian Heimes <christian@python.org>
* bpo-43977: Properly update the tp_flags of existing subclasses when their ↵Brandt Bucher2021-06-251-6/+31
| | | | parents are registered (GH-26864)
* bpo-43977: Make sure that tp_flags for pattern matching are inherited ↵Mark Shannon2021-05-021-2/+9
| | | | correctly. (GH-25813)
* bpo-43977: Use tp_flags for collection matching (GH-25723)Mark Shannon2021-04-301-0/+33
| | | | | | | | | | | | | * Add Py_TPFLAGS_SEQUENCE and Py_TPFLAGS_MAPPING, add to all relevant standard builtin classes. * Set relevant flags on collections.abc.Sequence and Mapping. * Use flags in MATCH_SEQUENCE and MATCH_MAPPING opcodes. * Inherit Py_TPFLAGS_SEQUENCE and Py_TPFLAGS_MAPPING. * Add NEWS * Remove interpreter-state map_abc and seq_abc fields.
* bpo-40137: Add pycore_moduleobject.h internal header (GH-25507)Victor Stinner2021-04-211-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add pycore_moduleobject.h internal header file with static inline functions to access module members: * _PyModule_GetDict() * _PyModule_GetDef() * _PyModule_GetState() These functions don't check at runtime if their argument has a valid type and can be inlined even if Python is not built with LTO. _PyType_GetModuleByDef() uses _PyModule_GetDef(). Replace PyModule_GetState() with _PyModule_GetState() in the extension modules, considered as performance sensitive: * _abc * _functools * _operator * _pickle * _queue * _random * _sre * _struct * _thread * _winapi * array * posix The following extensions are now built with the Py_BUILD_CORE_MODULE macro defined, to be able to use the internal pycore_moduleobject.h header: _abc, array, _operator, _queue, _sre, _struct.
* bpo-42157: Convert unicodedata.UCD to heap type (GH-22991)Victor Stinner2020-10-261-8/+8
| | | | | | | Convert the unicodedata extension module to the multiphase initialization API (PEP 489) and convert the unicodedata.UCD static type to a heap type. Co-Authored-By: Mohamed Koubaa <koubaa.m@gmail.com>
* bpo-40217: Ensure Py_VISIT(Py_TYPE(self)) is always called for ↵Pablo Galindo2020-05-271-0/+1
| | | | | | | | | PyType_FromSpec types (reverts GH-19414) (GH-20264) Heap types now always visit the type in tp_traverse. See added docs for details. This reverts commit 0169d3003be3d072751dd14a5c84748ab63a249f. Automerge-Triggered-By: @encukou
* bpo-40566: Apply PEP 573 to abc module (GH-20005)Dong-hee Na2020-05-091-15/+19
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* bpo-40268: Remove unused structmember.h includes (GH-19530)Victor Stinner2020-04-151-1/+0
| | | | | | If only offsetof() is needed: include stddef.h instead. When structmember.h is used, add a comment explaining that PyMemberDef is used.
* bpo-40149: Implement traverse in _abc._abc_data (GH-19412)Victor Stinner2020-04-071-4/+22
| | | Implement traverse and clear slots in _abc._abc_data type.
* bpo-40077: Convert _abc module to use PyType_FromSpec() (GH-19202)Dong-hee Na2020-03-301-30/+75
| | | | | | | Replace statically allocated types with heap allocated types: use PyType_FromSpec(). Add a module state to store the _abc_data_type. Add traverse, clear and free functions to the module.
* bpo-1635741: Port _abc extension to multiphase initialization (PEP 489) ↵Hai Shi2020-02-171-9/+18
| | | | (GH-18030)
* bpo-39573: Clean up modules and headers to use Py_IS_TYPE() function (GH-18521)Dong-hee Na2020-02-171-1/+1
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* bpo-37547: add _PyObject_CallMethodOneArg (GH-14685)Jeroen Demeyer2019-07-111-15/+8
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* Fix some typos (GH-14435)Min ho Kim2019-07-051-2/+2
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* bpo-37337: Add _PyObject_VectorcallMethod() (GH-14228)Jeroen Demeyer2019-06-281-6/+13
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* fix _abc.c compile error on Cygwin (GH-8445)E. M. Bray2019-02-241-1/+1
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* bpo-35436: Add missing PyErr_NoMemory() calls and other minor bug fixes. ↵Zackery Spytz2018-12-071-0/+4
| | | | | | (GH-11015) Set MemoryError when appropriate, add missing failure checks, and fix some potential leaks.
* Fix misleading mentions of tp_size in comments (GH-9093)Peter Eisentraut2018-09-101-1/+1
| | | | Many type object initializations labeled a field "tp_size" in the comment, but the name of that field is tp_basicsize.
* bpo-34441: Fix ABC.__subclasscheck__ crash on classes with invalid ↵Alexey Izbyshev2018-08-201-0/+3
| | | | | | __subclasses__ (GH-8835) The missing NULL check was reported by Svace static analyzer.
* bpo-32999: ast: Convert useless check to assert (GH-6197)INADA Naoki2018-03-231-3/+1
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* bpo-32999: Revert GH-6002 (fc7df0e6) (GH-6189)INADA Naoki2018-03-221-24/+11
| | | | bpo-33018 (GH-5944) fixed bpo-32999 too. So fc7df0e6 is not required anymore. Revert it except test case.
* bpo-33018: Improve issubclass() error checking and message. (GH-5944)jab2018-03-221-0/+5
| | | | | This improves error message for situations when a non-class is checked w.r.t. an abstract base class.
* bpo-32999: Fix ABC.__subclasscheck__ crash (GH-6002)INADA Naoki2018-03-071-12/+25
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* bpo-31333: Re-implement ABCMeta in C (#5273)Ivan Levkivskyi2018-02-181-0/+822
This adds C versions of methods used by ABCMeta that improve performance of various ABC operations.
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