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* GH-119462: Enforce invariants of type versioning (GH-120731)Mark Shannon2024-06-191-1/+1
| | | | * Remove uses of Py_TPFLAGS_VALID_VERSION_TAG
* Remove almost all unpaired backticks in docstrings (#119231)Geoffrey Thomas2024-05-221-2/+2
| | | | | | | | | | | | | | | | | | As reported in #117847 and #115366, an unpaired backtick in a docstring tends to confuse e.g. Sphinx running on subclasses of standard library objects, and the typographic style of using a backtick as an opening quote is no longer in favor. Convert almost all uses of the form The variable `foo' should do xyz to The variable 'foo' should do xyz and also fix up miscellaneous other unpaired backticks (extraneous / missing characters). No functional change is intended here other than in human-readable docstrings.
* gh-116322: Add Py_mod_gil module slot (#116882)Brett Simmers2024-05-031-0/+1
| | | | | | | | | | | | | | This PR adds the ability to enable the GIL if it was disabled at interpreter startup, and modifies the multi-phase module initialization path to enable the GIL when loading a module, unless that module's spec includes a slot indicating it can run safely without the GIL. PEP 703 called the constant for the slot `Py_mod_gil_not_used`; I went with `Py_MOD_GIL_NOT_USED` for consistency with gh-104148. A warning will be issued up to once per interpreter for the first GIL-using module that is loaded. If `-v` is given, a shorter message will be printed to stderr every time a GIL-using module is loaded (including the first one that issues a warning).
* gh-115398: Expose Expat >=2.6.0 reparse deferral API (CVE-2023-52425) ↵Sebastian Pipping2024-02-291-0/+53
| | | | | | | | | | | | | | | | | | | | | (GH-115623) Allow controlling Expat >=2.6.0 reparse deferral (CVE-2023-52425) by adding five new methods: - `xml.etree.ElementTree.XMLParser.flush` - `xml.etree.ElementTree.XMLPullParser.flush` - `xml.parsers.expat.xmlparser.GetReparseDeferralEnabled` - `xml.parsers.expat.xmlparser.SetReparseDeferralEnabled` - `xml.sax.expatreader.ExpatParser.flush` Based on the "flush" idea from https://github.com/python/cpython/pull/115138#issuecomment-1932444270 . ### Notes - Please treat as a security fix related to CVE-2023-52425. Includes code suggested-by: Snild Dolkow <snild@sony.com> and by core dev Serhiy Storchaka.
* gh-112066: Use `PyDict_SetDefaultRef` in place of `PyDict_SetDefault`. (#112211)Sam Gross2024-02-071-1/+2
| | | | | This changes a number of internal usages of `PyDict_SetDefault` to use `PyDict_SetDefaultRef`. Co-authored-by: Erlend E. Aasland <erlend.aasland@protonmail.com>
* gh-114569: Use PyMem_* APIs for most non-PyObject uses (#114574)Erlend E. Aasland2024-01-261-1/+1
| | | Fix usage in Modules, Objects, and Parser subdirectories.
* gh-103092: Make ``pyexpat`` module importable in sub-interpreters (#113555)Kirill Podoprigora2023-12-291-3/+1
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* gh-111789: Use PyDict_GetItemRef() in Modules/pyexpat.c (gh-112079)Serhiy Storchaka2023-11-271-12/+5
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* gh-110093: Replace trivial Py_BuildValue() with direct C API call (GH-110094)Serhiy Storchaka2023-10-201-2/+2
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* gh-108765: Python.h no longer includes <ctype.h> (#108831)Victor Stinner2023-09-031-1/+0
| | | | | | | | | | | | | | | | | | | | | | | Remove <ctype.h> in C files which don't use it; only sre.c and _decimal.c still use it. Remove _PY_PORT_CTYPE_UTF8_ISSUE code from pyport.h: * Code added by commit b5047fd01948ab108edcc1b3c2c901d915814cfd in 2004 for MacOSX and FreeBSD. * Test removed by commit 52ddaefb6bab1a74ecffe8519c02735794ebfbe1 in 2007, since Python str type now uses locale independent functions like Py_ISALPHA() and Py_TOLOWER() and the Unicode database. Modules/_sre/sre.c replaces _PY_PORT_CTYPE_UTF8_ISSUE with new functions: sre_isalnum(), sre_tolower(), sre_toupper(). Remove unused includes: * _localemodule.c: remove <stdio.h>. * getargs.c: remove <float.h>. * dynload_win.c: remove <direct.h>, it no longer calls _getcwd() since commit fb1f68ed7cc1536482d1debd70a53c5442135fe2 (in 2001).
* gh-106320: Remove private _PyTraceback functions (#108453)Victor Stinner2023-08-241-0/+1
| | | | | | Move private functions to the internal C API (pycore_traceback.h): * _Py_DisplaySourceLine() * _PyTraceback_Add()
* gh-106869: Use new PyMemberDef constant names (#106871)Victor Stinner2023-07-251-4/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Remove '#include "structmember.h"'. * If needed, add <stddef.h> to get offsetof() function. * Update Parser/asdl_c.py to regenerate Python/Python-ast.c. * Replace: * T_SHORT => Py_T_SHORT * T_INT => Py_T_INT * T_LONG => Py_T_LONG * T_FLOAT => Py_T_FLOAT * T_DOUBLE => Py_T_DOUBLE * T_STRING => Py_T_STRING * T_OBJECT => _Py_T_OBJECT * T_CHAR => Py_T_CHAR * T_BYTE => Py_T_BYTE * T_UBYTE => Py_T_UBYTE * T_USHORT => Py_T_USHORT * T_UINT => Py_T_UINT * T_ULONG => Py_T_ULONG * T_STRING_INPLACE => Py_T_STRING_INPLACE * T_BOOL => Py_T_BOOL * T_OBJECT_EX => Py_T_OBJECT_EX * T_LONGLONG => Py_T_LONGLONG * T_ULONGLONG => Py_T_ULONGLONG * T_PYSSIZET => Py_T_PYSSIZET * T_NONE => _Py_T_NONE * READONLY => Py_READONLY * PY_AUDIT_READ => Py_AUDIT_READ * READ_RESTRICTED => Py_AUDIT_READ * PY_WRITE_RESTRICTED => _Py_WRITE_RESTRICTED * RESTRICTED => (READ_RESTRICTED | _Py_WRITE_RESTRICTED)
* gh-86493: Modernize modules initialization code (GH-106858)Serhiy Storchaka2023-07-251-10/+4
| | | | | Use PyModule_Add() or PyModule_AddObjectRef() instead of soft deprecated PyModule_AddObject().
* gh-106320: Move private _PyHash API to the internal C API (#107026)Victor Stinner2023-07-221-0/+1
| | | | | * No longer export most private _PyHash symbols, only export the ones which are needed by shared extensions. * Modules/_xxtestfuzz/fuzzer.c now uses the internal C API.
* gh-86493: Use PyModule_Add() instead of PyModule_AddObjectRef() (GH-106860)Serhiy Storchaka2023-07-181-8/+5
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* gh-106521: Remove _PyObject_LookupAttr() function (GH-106642)Serhiy Storchaka2023-07-121-1/+1
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* gh-106320: Remove private _PyImport C API functions (#106383)Victor Stinner2023-07-031-0/+5
| | | | | | * Remove private _PyImport C API functions: move them to the internal C API (pycore_import.h). * No longer export most of these private functions. * _testcapi avoids private _PyImport_GetModuleAttrString().
* gh-105375: Harden pyexpat initialisation (#105606)Erlend E. Aasland2023-06-111-7/+11
| | | | Add proper error handling to add_errors_module() to prevent exceptions from possibly being overwritten.
* gh-92536: Remove PyUnicode_READY() calls (#105210)Victor Stinner2023-06-011-1/+1
| | | | Since Python 3.12, PyUnicode_READY() does nothing and always returns 0.
* GH-103092: isolate `pyexpat` (#104506)Kumar Aditya2023-05-161-8/+21
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* gh-99113: Add Py_MOD_PER_INTERPRETER_GIL_SUPPORTED (gh-104205)Eric Snow2023-05-051-0/+3
| | | Here we are doing no more than adding the value for Py_mod_multiple_interpreters and using it for stdlib modules. We will start checking for it in gh-104206 (once PyInterpreterState.ceval.own_gil is added in gh-104204).
* GH-101797: allocate `PyExpat_CAPI` capsule on heap (#101798)Kumar Aditya2023-02-111-27/+45
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* gh-100689: Revert "bpo-41798: pyexpat: Allocate the expat_CAPI on the heap ↵Nikita Sobolev2023-01-081-40/+27
| | | | | | | memory (GH-24061)" (#100745) * gh-100689: Revert "bpo-41798: pyexpat: Allocate the expat_CAPI on the heap memory (GH-24061)" This reverts commit 7c83eaa536d2f436ae46211ca48692f576c732f0.
* bpo-15999: Accept arbitrary values for boolean parameters. (#15609)Serhiy Storchaka2022-12-031-2/+2
| | | builtins and extension module functions and methods that expect boolean values for parameters now accept any Python object rather than just a bool or int type. This is more consistent with how native Python code itself behaves.
* gh-99300: Use Py_NewRef() in Modules/ directory (#99469)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-99426: Use PyUnicode_FromFormat() and PyErr_Format() instead of sprintf ↵Serhiy Storchaka2022-11-141-3/+1
| | | | (GH-99427)
* Correct some typos in comments (GH-98194)jonasdlindner2022-11-061-1/+1
| | | Automerge-Triggered-By: GH:AlexWaygood
* gh-95853: Address wasm build and test issues (GH-95985)Christian Heimes2022-08-151-1/+1
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* gh-93937, C API: Move PyFrame_GetBack() to Python.h (#93938)Victor Stinner2022-06-191-1/+0
| | | | | | | | | | | | | | | | Move the follow functions and type from frameobject.h to pyframe.h, so the standard <Python.h> provide frame getter functions: * PyFrame_Check() * PyFrame_GetBack() * PyFrame_GetBuiltins() * PyFrame_GetGenerator() * PyFrame_GetGlobals() * PyFrame_GetLasti() * PyFrame_GetLocals() * PyFrame_Type Remove #include "frameobject.h" from many C files. It's no longer needed.
* gh-89653: Use int type for Unicode kind (#92704)Victor Stinner2022-05-131-1/+1
| | | | Use the same type that PyUnicode_FromKindAndData() kind parameter type (public C API): int.
* gh-91731: Replace Py_BUILD_ASSERT() with static_assert() (#91730)Victor Stinner2022-04-201-1/+3
| | | | | | | | | | | | Python 3.11 now uses C11 standard which adds static_assert() to <assert.h>. * In pytime.c, replace Py_BUILD_ASSERT() with preprocessor checks on SIZEOF_TIME_T with #error. * On macOS, py_mach_timebase_info() now accepts timebase members with the same size than _PyTime_t. * py_get_monotonic_clock() now saturates GetTickCount64() to _PyTime_MAX: GetTickCount64() is unsigned, whereas _PyTime_t is signed.
* bpo-46541: Remove usage of _Py_IDENTIFIER from pyexpat (GH-31468)Dong-hee Na2022-02-211-4/+8
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* bpo-46541: Replace core use of _Py_IDENTIFIER() with statically initialized ↵Eric Snow2022-02-081-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | 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-45321: Add missing error codes to module `xml.parsers.expat.errors` ↵Sebastian Pipping2021-12-311-49/+91
| | | | | | | | | (GH-30188) The idea is to ensure that module `xml.parsers.expat.errors` contains all known error codes and messages, even when CPython is compiled or run with an outdated version of libexpat. https://bugs.python.org/issue45321
* bpo-45329: Fix freed memory access in pyexpat.c (GH-28649)TAGAMI Yukihiro2021-10-021-1/+1
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* bpo-43908: Make heap types converted during 3.10 alpha immutable (GH-26351)Erlend Egeberg Aasland2021-06-171-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Make functools types immutable * Multibyte codec types are now immutable * pyexpat.xmlparser is now immutable * array.arrayiterator is now immutable * _thread types are now immutable * _csv types are now immutable * _queue.SimpleQueue is now immutable * mmap.mmap is now immutable * unicodedata.UCD is now immutable * sqlite3 types are now immutable * _lsprof.Profiler is now immutable * _overlapped.Overlapped is now immutable * _operator types are now immutable * winapi__overlapped.Overlapped is now immutable * _lzma types are now immutable * _bz2 types are now immutable * _dbm.dbm and _gdbm.gdbm are now immutable
* bpo-42972: Fully support GC for pyexpat, unicodedata, and dbm/gdbm heap ↵Erlend Egeberg Aasland2021-05-271-21/+18
| | | | | | | types (GH-26376) * bpo-42972: pyexpat * bpo-42972: unicodedata * bpo-42972: dbm/gdbm
* bpo-43916: Apply Py_TPFLAGS_DISALLOW_INSTANTIATION to selected types (GH-25748)Erlend Egeberg Aasland2021-04-301-1/+2
| | | | | | | | | | | | | | | | | | | | | Apply Py_TPFLAGS_DISALLOW_INSTANTIATION to the following types: * _dbm.dbm * _gdbm.gdbm * _multibytecodec.MultibyteCodec * _sre..SRE_Scanner * _thread._localdummy * _thread.lock * _winapi.Overlapped * array.arrayiterator * functools.KeyWrapper * functools._lru_list_elem * pyexpat.xmlparser * re.Match * re.Pattern * unicodedata.UCD * zlib.Compress * zlib.Decompress
* bpo-1635741: Port pyexpat to multi-phase init (PEP 489) (GH-22222)Mohamed Koubaa2021-01-041-95/+127
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* bpo-41798: pyexpat: Allocate the expat_CAPI on the heap memory (GH-24061)Hai Shi2021-01-031-27/+40
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* bpo-1635741: Fix PyInit_pyexpat() error handling (GH-22489)Mohamed Koubaa2020-11-041-189/+299
| | | | Split PyInit_pyexpat() into sub-functions and fix reference leaks on error paths.
* bpo-42152: Use PyDict_Contains and PyDict_SetDefault if appropriate. (GH-22986)Serhiy Storchaka2020-10-261-9/+1
| | | | | | | If PyDict_GetItemWithError is only used to check whether the key is in dict, it is better to use PyDict_Contains instead. And if it is used in combination with PyDict_SetItem, PyDict_SetDefault can replace the combination.
* bpo-40268: Remove unused structmember.h includes (GH-19530)Victor Stinner2020-04-151-1/+1
| | | | | | If only offsetof() is needed: include stddef.h instead. When structmember.h is used, add a comment explaining that PyMemberDef is used.
* bpo-39943: Add the const qualifier to pointers on non-mutable PyUnicode ↵Serhiy Storchaka2020-04-111-1/+1
| | | | data. (GH-19345)
* bpo-39245: Switch to public API for Vectorcall (GH-18460)Petr Viktorin2020-02-111-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The bulk of this patch was generated automatically with: for name in \ PyObject_Vectorcall \ Py_TPFLAGS_HAVE_VECTORCALL \ PyObject_VectorcallMethod \ PyVectorcall_Function \ PyObject_CallOneArg \ PyObject_CallMethodNoArgs \ PyObject_CallMethodOneArg \ ; do echo $name git grep -lwz _$name | xargs -0 sed -i "s/\b_$name\b/$name/g" done old=_PyObject_FastCallDict new=PyObject_VectorcallDict git grep -lwz $old | xargs -0 sed -i "s/\b$old\b/$new/g" and then cleaned up: - Revert changes to in docs & news - Revert changes to backcompat defines in headers - Nudge misaligned comments
* bpo-38392: PyObject_GC_Track() validates object in debug mode (GH-16615)Victor Stinner2019-10-071-2/+3
| | | | | | | | In debug mode, PyObject_GC_Track() now calls tp_traverse() of the object type to ensure that the object is valid: test that objects visited by tp_traverse() are valid. Fix pyexpat.c: only track the parser in the GC once the parser is fully initialized.
* bpo-37206: Unrepresentable default values no longer represented as None. ↵Serhiy Storchaka2019-09-141-3/+3
| | | | | | | (GH-13933) In ArgumentClinic, value "NULL" should now be used only for unrepresentable default values (like in the optional third parameter of getattr). "None" should be used if None is accepted as argument and passing None has the same effect as not passing the argument at all.
* bpo-37994: Fix silencing all errors if an attribute lookup fails. (GH-15630)Serhiy Storchaka2019-09-011-1/+3
| | | Only AttributeError should be silenced.
* bpo-29548: no longer use PyEval_Call* functions (GH-14683)Jeroen Demeyer2019-07-111-1/+1
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* bpo-37483: add _PyObject_CallOneArg() function (#14558)Jeroen Demeyer2019-07-041-1/+1
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