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* gh-121040: Use __attribute__((fallthrough)) (#121044)Victor Stinner2024-06-271-1/+1
| | | | | | | | | | | | | Fix warnings when using -Wimplicit-fallthrough compiler flag. Annotate explicitly "fall through" switch cases with a new _Py_FALLTHROUGH macro which uses __attribute__((fallthrough)) if available. Replace "fall through" comments with _Py_FALLTHROUGH. Add _Py__has_attribute() macro. No longer define __has_attribute() macro if it's not defined. Move also _Py__has_builtin() at the top of pyport.h. Co-Authored-By: Nikita Sobolev <mail@sobolevn.me>
* Fixes loop variables to be the same types as their limit (GH-120958)Steve Dower2024-06-241-1/+2
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* gh-113993: Allow interned strings to be mortal, and fix related issues ↵Petr Viktorin2024-06-211-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (GH-120520) * Add an InternalDocs file describing how interning should work and how to use it. * Add internal functions to *explicitly* request what kind of interning is done: - `_PyUnicode_InternMortal` - `_PyUnicode_InternImmortal` - `_PyUnicode_InternStatic` * Switch uses of `PyUnicode_InternInPlace` to those. * Disallow using `_Py_SetImmortal` on strings directly. You should use `_PyUnicode_InternImmortal` instead: - Strings should be interned before immortalization, otherwise you're possibly interning a immortalizing copy. - `_Py_SetImmortal` doesn't handle the `SSTATE_INTERNED_MORTAL` to `SSTATE_INTERNED_IMMORTAL` update, and those flags can't be changed in backports, as they are now part of public API and version-specific ABI. * Add private `_only_immortal` argument for `sys.getunicodeinternedsize`, used in refleak test machinery. * Make sure the statically allocated string singletons are unique. This means these sets are now disjoint: - `_Py_ID` - `_Py_STR` (including the empty string) - one-character latin-1 singletons Now, when you intern a singleton, that exact singleton will be interned. * Add a `_Py_LATIN1_CHR` macro, use it instead of `_Py_ID`/`_Py_STR` for one-character latin-1 singletons everywhere (including Clinic). * Intern `_Py_STR` singletons at startup. * For free-threaded builds, intern `_Py_LATIN1_CHR` singletons at startup. * Beef up the tests. Cover internal details (marked with `@cpython_only`). * Add lots of assertions Co-Authored-By: Eric Snow <ericsnowcurrently@gmail.com>
* gh-117557: Improve error messages when a string, bytes or bytearray of ↵Serhiy Storchaka2024-05-281-4/+30
| | | | length 1 are expected (GH-117631)
* gh-119213: Be More Careful About _PyArg_Parser.kwtuple Across Interpreters ↵Eric Snow2024-05-221-2/+19
| | | | | | | | | (gh-119331) _PyArg_Parser holds static global data generated for modules by Argument Clinic. The _PyArg_Parser.kwtuple field is a tuple object, even though it's stored within a static global. In some cases the tuple is statically allocated and thus it's okay that it gets shared by multiple interpreters. However, in other cases the tuple is set lazily, allocated from the heap using the active interprepreter at the point the tuple is needed. This is a problem once that interpreter is destroyed since _PyArg_Parser.kwtuple becomes at dangling pointer, leading to crashes. It isn't a problem if the tuple is allocated under the main interpreter, since its lifetime is bound to the lifetime of the runtime. The solution here is to temporarily switch to the main interpreter. The alternative would be to always statically allocate the tuple. This change also fixes a bug where only the most recent parser was added to the global linked list.
* gh-68114: Fix handling for removed PyArg_ParseTuple 'w' formatters (GH-8204)Joe Jevnik2024-04-231-0/+5
| | | | Co-authored-by: Joe Jevnik <joe@quantopian.com> Co-authored-by: Petr Viktorin <encukou@gmail.com>
* gh-116447: Fix possible UB in `arraymodule` and `getargs` (#116459)Nikita Sobolev2024-03-081-2/+2
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* gh-107944: Improve error message for getargs with bad keyword arguments ↵Shantanu2024-02-081-12/+58
| | | | (#114792)
* gh-65210: Add const qualifiers in PyArg_VaParseTupleAndKeywords() (GH-105958)Serhiy Storchaka2023-12-041-8/+9
| | | | | | | | | | | Change the declaration of the keywords parameter in functions PyArg_ParseTupleAndKeywords() and PyArg_VaParseTupleAndKeywords() from `char **` to `char * const *` in C and `const char * const *` in C++. It makes these functions compatible with argument of type `const char * const *`, `const char **` or `char * const *` in C++ and `char * const *` in C without explicit type cast. Co-authored-by: C.A.M. Gerlach <CAM.Gerlach@Gerlach.CAM>
* gh-112438: Fix support of format units with the "e" prefix in nested tuples ↵Serhiy Storchaka2023-11-271-1/+1
| | | | in PyArg_Parse (gh-112439)
* gh-112234: Remove the toplevel parameter in converttuple() (GH-112235)Serhiy Storchaka2023-11-181-16/+6
| | | It is and always was 0.
* gh-111956: Add thread-safe one-time initialization. (gh-111960)Sam Gross2023-11-161-29/+17
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* gh-111089: Revert PyUnicode_AsUTF8() changes (#111833)Victor Stinner2023-11-071-2/+6
| | | | | | | | | | | | | | | | | | | | | * Revert "gh-111089: Use PyUnicode_AsUTF8() in Argument Clinic (#111585)" This reverts commit d9b606b3d04fc56fb0bcc479d7d6c14562edb5e2. * Revert "gh-111089: Use PyUnicode_AsUTF8() in getargs.c (#111620)" This reverts commit cde1071b2a72e8261ca66053ef61431b7f3a81fd. * Revert "gh-111089: PyUnicode_AsUTF8() now raises on embedded NUL (#111091)" This reverts commit d731579bfb9a497cfb0076cb6b221058a20088fe. * Revert "gh-111089: Add PyUnicode_AsUTF8() to the limited C API (#111121)" This reverts commit d8f32be5b6a736dc2fc9dca3f1bf176c82fc9b44. * Revert "gh-111089: Use PyUnicode_AsUTF8() in sqlite3 (#111122)" This reverts commit 37e4e20eaa8f27ada926d49e5971fecf0477ad26.
* gh-111089: Use PyUnicode_AsUTF8() in getargs.c (#111620)Victor Stinner2023-11-011-6/+2
| | | | Replace PyUnicode_AsUTF8AndSize() with PyUnicode_AsUTF8() to remove the explicit check for embedded null characters.
* gh-67565: Remove redundant C-contiguity checks (GH-105521)Furkan Onder2023-10-231-11/+6
| | | | Co-authored-by: Stefan Krah <skrah@bytereef.org>
* gh-110964: Remove private _PyArg functions (#110966)Victor Stinner2023-10-171-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Move the following private functions and structures to pycore_modsupport.h internal C API: * _PyArg_BadArgument() * _PyArg_CheckPositional() * _PyArg_NoKeywords() * _PyArg_NoPositional() * _PyArg_ParseStack() * _PyArg_ParseStackAndKeywords() * _PyArg_Parser structure * _PyArg_UnpackKeywords() * _PyArg_UnpackKeywordsWithVararg() * _PyArg_UnpackStack() * _Py_ANY_VARARGS() Changes: * Python/getargs.h now includes pycore_modsupport.h to export functions. * clinic.py now adds pycore_modsupport.h when one of these functions is used. * Add pycore_modsupport.h includes when a C extension uses one of these functions. * Define Py_BUILD_CORE_MODULE in C extensions which now include directly or indirectly (via code generated by Argument Clinic) pycore_modsupport.h: * _csv * _curses_panel * _dbm * _gdbm * _multiprocessing.posixshmem * _sqlite.row * _statistics * grp * resource * syslog * _testcapi: bad_get() no longer uses METH_FASTCALL calling convention but METH_VARARGS. Replace _PyArg_UnpackStack() with PyArg_ParseTuple(). * _testcapi: add PYTESTCAPI_NEED_INTERNAL_API macro which is defined by _testcapi sub-modules which need the internal C API (pycore_modsupport.h): exceptions.c, float.c, vectorcall.c, watchers.c. * Remove Include/cpython/modsupport.h header file. Include/modsupport.h no longer includes the removed header file. * Fix mypy clinic.py
* gh-110864: Fix _PyArg_UnpackKeywordsWithVararg overwriting vararg with NULL ↵Nikita Sobolev2023-10-161-1/+1
| | | | (#110868)
* gh-110815: Support non-ASCII keyword names in PyArg_ParseTupleAndKeywords() ↵Serhiy Storchaka2023-10-141-1/+1
| | | | | | | (GH-110816) It already mostly worked, except in the case when invalid keyword argument with non-ASCII name was passed to function with non-ASCII parameter names. Then it crashed in the debug mode.
* gh-110079: Remove extern "C" { ...} in C code (#110080)Victor Stinner2023-09-291-8/+0
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* gh-108765: Python.h no longer includes <ctype.h> (#108831)Victor Stinner2023-09-031-4/+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 AC converter functions (#108505)Victor Stinner2023-08-261-0/+1
| | | | | | | | | | | | | | Move these private functions to the internal C API (pycore_abstract.h): * _Py_convert_optional_to_ssize_t() * _PyNumber_Index() Argument Clinic now emits #include "pycore_abstract.h" when these functions are used. The parser of the c-analyzer tool now uses a list of files which use the limited C API, rather than a list of files using the internal C API.
* gh-108308: Remove _PyDict_GetItemStringWithError() function (#108426)Victor Stinner2023-08-241-28/+30
| | | | | | | | Remove the internal _PyDict_GetItemStringWithError() function. It can now be replaced with the new public PyDict_ContainsString() and PyDict_GetItemStringRef() functions. getargs.c now now uses a strong reference for current_arg. find_keyword() returns a strong reference.
* gh-107196: Remove _PyArg_VaParseTupleAndKeywordsFast() function (#107197)Victor Stinner2023-07-271-14/+0
| | | | Remove the private _PyArg_VaParseTupleAndKeywordsFast() function: it is no longer used.
* gh-106320: Remove private _PyDict C API (#107145)Victor Stinner2023-07-241-1/+2
| | | | | | | | | | | | | Move private _PyDict functions to the internal C API (pycore_dict.h): * _PyDict_Contains_KnownHash() * _PyDict_DebugMallocStats() * _PyDict_DelItemIf() * _PyDict_GetItemWithError() * _PyDict_HasOnlyStringKeys() * _PyDict_MaybeUntrack() * _PyDict_MergeEx() No longer export these functions.
* gh-92536: Remove PyUnicode_READY() calls (#105210)Victor Stinner2023-06-011-5/+0
| | | | Since Python 3.12, PyUnicode_READY() does nothing and always returns 0.
* gh-104922: Make `PY_SSIZE_T_CLEAN` not mandatory again (#105051)Inada Naoki2023-05-311-84/+16
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* gh-99240: Reset pointer to NULL when the pointed memory is freed in argument ↵colorfulappl2022-12-171-5/+5
| | | | | | parsing (#99890) Co-authored-by: Kumar Aditya <59607654+kumaraditya303@users.noreply.github.com> Co-authored-by: Erlend E. Aasland <erlend.aasland@protonmail.com>
* gh-64490: Fix bugs in argument clinic varargs processing (#32092)colorfulappl2022-11-241-1/+19
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* gh-81057: Move Globals in Core Code to _PyRuntimeState (gh-99496)Eric Snow2022-11-151-7/+4
| | | | | This is the first of several changes to consolidate non-object globals in core code. https://github.com/python/cpython/issues/81057
* gh-99300: Use Py_NewRef() in Python/ directory (#99302)Victor Stinner2022-11-101-4/+2
| | | | Replace Py_INCREF() and Py_XINCREF() with Py_NewRef() and Py_XNewRef() in C files of the Python/ directory.
* GH-95909: Make `_PyArg_Parser` initialization thread safe (GH-95958)Kumar Aditya2022-08-161-6/+23
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* gh-90928: Statically Initialize the Keywords Tuple in Clinic-Generated Code ↵Eric Snow2022-08-111-81/+149
| | | | | | | | | | | | | | | | (gh-95860) We only statically initialize for core code and builtin modules. Extension modules still create the tuple at runtime. We'll solve that part of interpreter isolation separately. This change includes generated code. The non-generated changes are in: * Tools/clinic/clinic.py * Python/getargs.c * Include/cpython/modsupport.h * Makefile.pre.in (re-generate global strings after running clinic) * very minor tweaks to Modules/_codecsmodule.c and Python/Python-tokenize.c All other changes are generated code (clinic, global strings).
* gh-94938: Fix errror detection of unexpected keyword arguments (GH-94999)Serhiy Storchaka2022-07-281-85/+57
| | | | | | | | | | When keyword argument name is an instance of a str subclass with overloaded methods __eq__ and __hash__, the former code could not find the name of an extraneous keyword argument to report an error, and _PyArg_UnpackKeywords() returned success without setting the corresponding cell in the linearized arguments array. But since the number of expected initialized cells is determined as the total number of passed arguments, this lead to reading NULL as a keyword parameter value, that caused SystemError or crash or other undesired behavior.
* gh-94930: skipitem() in getargs.c should return non-NULL on error (GH-94931)Serhiy Storchaka2022-07-181-3/+1
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* GH-93207: Remove HAVE_STDARG_PROTOTYPES configure check for stdarg.h (#93215)Kumar Aditya2022-05-271-8/+0
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* gh-92536: PEP 623: Remove wstr and legacy APIs from Unicode (GH-92537)Inada Naoki2022-05-121-54/+0
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* bpo-45316: Move _PyArg_Fini() to internal C API (GH-31580)Victor Stinner2022-02-251-0/+1
| | | | Move the private unexported _PyArg_Fini() function to the internal C API: to the pycore_pylifecycle.h header file.
* bpo-20291: Fix MSVC warnings in getargs.c (GH-27211)Ken Jin2021-07-171-1/+2
| | | | | | | | | * Fix MSVC warnings in getargs.c * apply suggestions Co-Authored-By: Batuhan Taskaya <batuhan@python.org> Co-authored-by: Batuhan Taskaya <batuhan@python.org>
* bpo-20201: variadic arguments support for AC (GH-18609)Batuhan Taskaya2021-07-161-0/+160
| | | Implement support for `*args` in AC, and port `print()` to use it.
* bpo-40943: Fix skipitem() didn't raise SystemError (GH-25937)Inada Naoki2021-05-071-8/+5
| | | | `convertitem()` raises `SystemError` when '#' is used without `PY_SSIZE_T_CLEAN`. This commit makes `skipitem()` raise it too.
* bpo-43321: Fix SystemError in getargs.c (GH-24656)Inada Naoki2021-02-271-2/+2
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* bpo-36346: Emit DeprecationWarning for PyArg_Parse() with 'u' or 'Z'. (GH-20927)Inada Naoki2021-02-221-1/+4
| | | | | Emit DeprecationWarning when PyArg_Parse*() is called with 'u', 'Z' format. See PEP 623.
* bpo-42519: Replace PyMem_MALLOC() with PyMem_Malloc() (GH-23586)Victor Stinner2020-12-011-2/+2
| | | | | | | | | | | No longer use deprecated aliases to functions: * Replace PyMem_MALLOC() with PyMem_Malloc() * Replace PyMem_REALLOC() with PyMem_Realloc() * Replace PyMem_FREE() with PyMem_Free() * Replace PyMem_Del() with PyMem_Free() * Replace PyMem_DEL() with PyMem_Free() Modify also the PyMem_DEL() macro to use directly PyMem_Free().
* bpo-41078: Rename pycore_tupleobject.h to pycore_tuple.h (GH-21056)Victor Stinner2020-06-221-1/+1
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* bpo-40943: PY_SSIZE_T_CLEAN required for '#' formats (GH-20784)Victor Stinner2020-06-191-62/+27
| | | | | | | The PY_SSIZE_T_CLEAN macro must now be defined to use PyArg_ParseTuple() and Py_BuildValue() "#" formats: "es#", "et#", "s#", "u#", "y#", "z#", "U#" and "Z#". See the PEP 353. Update _testcapi.test_buildvalue_issue38913().
* bpo-36346: Add Py_DEPRECATED to deprecated unicode APIs (GH-20878)Inada Naoki2020-06-171-0/+4
| | | | Co-authored-by: Kyle Stanley <aeros167@gmail.com> Co-authored-by: Victor Stinner <vstinner@python.org>
* bpo-40943: Replace PY_FORMAT_SIZE_T with "z" (GH-20781)Victor Stinner2020-06-101-4/+3
| | | | | | | The PEP 353, written in 2005, introduced PY_FORMAT_SIZE_T. Python no longer supports macOS 10.4 and Visual Studio 2010, but requires more recent macOS and Visual Studio versions. In 2020 with Python 3.10, it is now safe to use directly "%zu" to format size_t and "%zi" to format Py_ssize_t.
* bpo-40792: Make the result of PyNumber_Index() always having exact type int. ↵Serhiy Storchaka2020-05-281-1/+1
| | | | | | | | | | | | (GH-20443) Previously, the result could have been an instance of a subclass of int. Also revert bpo-26202 and make attributes start, stop and step of the range object having exact type int. Add private function _PyNumber_Index() which preserves the old behavior of PyNumber_Index() for performance to use it in the conversion functions like PyLong_AsLong().
* bpo-37999: No longer use __int__ in implicit integer conversions. (GH-15636)Serhiy Storchaka2020-05-261-54/+12
| | | | Only __index__ should be used to make integer conversions lossless.
* bpo-39943: Add the const qualifier to pointers on non-mutable PyUnicode ↵Serhiy Storchaka2020-04-111-1/+1
| | | | data. (GH-19345)
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