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* GH-122548: Implement branch taken and not taken events for sys.monitoring ↵Mark Shannon2024-12-191-3/+22
| | | | (GH-122564)
* gh-126742: Add _PyErr_SetLocaleString, use it for gdbm & dlerror messages ↵Bénédikt Tran2024-12-171-0/+1
| | | | | | | | (GH-126746) - Add a helper to set an error from locale-encoded `char*` - Use the helper for gdbm & dlerror messages Co-authored-by: Victor Stinner <vstinner@python.org>
* gh-102471, PEP 757: Add PyLong import and export API (#121339)Victor Stinner2024-12-131-0/+124
| | | | | Co-authored-by: Sergey B Kirpichev <skirpichev@gmail.com> Co-authored-by: Steve Dower <steve.dower@microsoft.com> Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
* gh-123378: Ensure results of `PyUnicode*Error_Get{Start,End}` are clamped ↵Bénédikt Tran2024-12-041-0/+167
| | | | | | (GH-123380) Co-authored-by: Sergey B Kirpichev <skirpichev@gmail.com>
* gh-127572: Fix `test_structmembers` initialization (GH-127577)Sam Gross2024-12-041-1/+1
| | | | | | | | gh-127572: Fix `test_structmembers` initialization. The 'C' format code expects an `int` as a destination (not a `char`). This led to test failures on big-endian platforms like s390x. Use the 'c' format code, which expects a `char` as the destination (but requires a Python byte objects instead of a str).
* gh-117657: TSAN Fix races in `PyMember_Get` and `PyMember_Set` for C ↵Daniele Parmeggiani2024-12-031-3/+7
| | | | extensions (GH-123211)
* gh-69639: Add mixed-mode rules for complex arithmetic (C-like) (GH-124829)Sergey B Kirpichev2024-11-261-3/+47
| | | | | | | | | | | | | | | "Generally, mixed-mode arithmetic combining real and complex variables should be performed directly, not by first coercing the real to complex, lest the sign of zero be rendered uninformative; the same goes for combinations of pure imaginary quantities with complex variables." (c) Kahan, W: Branch cuts for complex elementary functions. This patch implements mixed-mode arithmetic rules, combining real and complex variables as specified by C standards since C99 (in particular, there is no special version for the true division with real lhs operand). Most C compilers implementing C99+ Annex G have only these special rules (without support for imaginary type, which is going to be deprecated in C2y).
* gh-123619: Add an unstable C API function for enabling deferred reference ↵Peter Bierma2024-11-131-1/+8
| | | | | | counting (GH-123635) Co-authored-by: Sam Gross <colesbury@gmail.com>
* gh-126061: Add PyLong_IsPositive/Zero/Negative() functions (#126065)RUANG (James Roy)2024-11-121-0/+27
| | | | | Co-authored-by: Sergey B Kirpichev <skirpichev@gmail.com> Co-authored-by: Peter Bierma <zintensitydev@gmail.com> Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
* gh-122943: Add the varpos parameter in _PyArg_UnpackKeywords (GH-126564)Serhiy Storchaka2024-11-081-2/+3
| | | | Remove _PyArg_UnpackKeywordsWithVararg. Add comments for integer arguments of _PyArg_UnpackKeywords.
* gh-124872: Replace enter/exit events with "switched" (#125532)Kirill Podoprigora2024-10-161-38/+41
| | | | | | | | | | | | | | | | | | | | | | | | | Users want to know when the current context switches to a different context object. Right now this happens when and only when a context is entered or exited, so the enter and exit events are synonymous with "switched". However, if the changes proposed for gh-99633 are implemented, the current context will also switch for reasons other than context enter or exit. Since users actually care about context switches and not enter or exit, replace the enter and exit events with a single switched event. The former exit event was emitted just before exiting the context. The new switched event is emitted after the context is exited to match the semantics users expect of an event with a past-tense name. If users need the ability to clean up before the switch takes effect, another event type can be added in the future. It is not added here because YAGNI. I skipped 0 in the enum as a matter of practice. Skipping 0 makes it easier to troubleshoot when code forgets to set zeroed memory, and it aligns with best practices for other tools (e.g., https://protobuf.dev/programming-guides/dos-donts/#unspecified-enum). Co-authored-by: Richard Hansen <rhansen@rhansen.org> Co-authored-by: Victor Stinner <vstinner@python.org>
* gh-125512: Revert "gh-124872: Replace enter/exit events with "switched" ↵Kirill Podoprigora2024-10-151-41/+38
| | | | (#124776)" (#125513)
* gh-124872: Replace enter/exit events with "switched" (#124776)Richard Hansen2024-10-141-38/+41
| | | | | | | | | | | | | | | | | | | | | | Users want to know when the current context switches to a different context object. Right now this happens when and only when a context is entered or exited, so the enter and exit events are synonymous with "switched". However, if the changes proposed for gh-99633 are implemented, the current context will also switch for reasons other than context enter or exit. Since users actually care about context switches and not enter or exit, replace the enter and exit events with a single switched event. The former exit event was emitted just before exiting the context. The new switched event is emitted after the context is exited to match the semantics users expect of an event with a past-tense name. If users need the ability to clean up before the switch takes effect, another event type can be added in the future. It is not added here because YAGNI. I skipped 0 in the enum as a matter of practice. Skipping 0 makes it easier to troubleshoot when code forgets to set zeroed memory, and it aligns with best practices for other tools (e.g., https://protobuf.dev/programming-guides/dos-donts/#unspecified-enum).
* gh-124872: Change PyContext_WatchCallback to take PyObject (#124737)Richard Hansen2024-10-121-5/+5
| | | | | The PyContext struct is not intended to be public, and users of the API don't need anything more specific than PyObject. Also see gh-78943.
* gh-115754: Use Py_GetConstant(Py_CONSTANT_EMPTY_STR) (#125194)Victor Stinner2024-10-091-1/+1
| | | | | Replace PyUnicode_New(0, 0), PyUnicode_FromString("") and PyUnicode_FromStringAndSize("", 0) with Py_GetConstant(Py_CONSTANT_EMPTY_STR).
* gh-124296: Remove private dictionary version tag (PEP 699) (#124472)Sam Gross2024-10-011-14/+0
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* gh-111495: Add tests for `PyCodec_*` C API (#123343)Bénédikt Tran2024-09-292-2/+216
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* gh-119333: Add C api to have contextvar enter/exit callbacks (#119335)Jason Fried2024-09-241-0/+152
| | | Co-authored-by: Erlend E. Aasland <erlend.aasland@protonmail.com>
* gh-124153: Implement `PyType_GetBaseByToken()` and `Py_tp_token` slot ↵neonene2024-09-181-0/+117
| | | | (GH-124163)
* gh-100554: Add ``Py_tp_vectorcall`` slot to set ↵Wenzel Jakob2024-09-131-0/+86
| | | | ``PyTypeObject.tp_vectorcall`` using the ``PyType_FromSpec`` function family. (#123332)
* gh-107954, PEP 741: Add PyConfig_Get()/Set() functions (#123472)Victor Stinner2024-09-022-0/+69
| | | | | | | | | | | Add PyConfig_Get(), PyConfig_GetInt(), PyConfig_Set() and PyConfig_Names() functions to get and set the current runtime Python configuration. Add visibility and "sys spec" to config and preconfig specifications. _PyConfig_AsDict() now converts PyConfig.xoptions as a dictionary. Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
* gh-122854: Add Py_HashBuffer() function (#122855)Victor Stinner2024-08-301-4/+25
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* gh-121645: Add PyBytes_Join() function (#121646)Victor Stinner2024-08-301-0/+15
| | | | * Replace _PyBytes_Join() with PyBytes_Join(). * Keep _PyBytes_Join() as an alias to PyBytes_Join().
* Fix typos in docs, error messages and comments (#123336)Wulian2024-08-281-2/+2
| | | | Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
* gh-111495: Add tests for PyNumber C API (#111996)Sergey B Kirpichev2024-08-261-0/+161
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* gh-111495: Add tests for PyTuple C API (#118757)Sergey B Kirpichev2024-08-261-1/+108
| | | | | Co-authored-by: kalyanr <kalyan.ben10@live.com> Co-authored-by: Serhiy Storchaka <storchaka@gmail.com> Co-authored-by: Victor Stinner <vstinner@python.org>
* gh-105201: Add PyIter_NextItem() (#122331)Erlend E. Aasland2024-08-071-0/+29
| | | | | | | | | Return -1 and set an exception on error; return 0 if the iterator is exhausted, and return 1 if the next item was fetched successfully. Prefer this API to PyIter_Next(), which requires the caller to use PyErr_Occurred() to differentiate between iterator exhaustion and errors. Co-authered-by: Irit Katriel <iritkatriel@yahoo.com>
* Update PyObject_Del() documentation (#122597)Victor Stinner2024-08-021-8/+8
| | | Replace PyMem_Del() with PyMem_Free().
* Replace PyObject_Del with PyObject_Free (#122453)Victor Stinner2024-08-011-1/+1
| | | | PyObject_Del() is just a alias to PyObject_Free() kept for backward compatibility. Use directly PyObject_Free() instead.
* gh-121791: Check for `NULL` in `MethodDescriptor2_new` in `_testcapi` (#121792)sobolevn2024-07-161-0/+3
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* gh-121368: Fix seq lock memory ordering in _PyType_Lookup (#121388)Sam Gross2024-07-081-0/+1
| | | | | | | | | The `_PySeqLock_EndRead` function needs an acquire fence to ensure that the load of the sequence happens after any loads within the read side critical section. The missing fence can trigger bugs on macOS arm64. Additionally, we need a release fence in `_PySeqLock_LockWrite` to ensure that the sequence update is visible before any modifications to the cache entry.
* gh-121040: Use __attribute__((fallthrough)) (#121044)Victor Stinner2024-06-271-2/+2
| | | | | | | | | | | | | 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>
* gh-119182: Add PyUnicodeWriter_WriteUCS4() function (#120849)Victor Stinner2024-06-241-0/+31
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* gh-119182: Rewrite PyUnicodeWriter tests in Python (#120845)Victor Stinner2024-06-211-261/+187
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* gh-119182: Add PyUnicodeWriter_DecodeUTF8Stateful() (#120639)Victor Stinner2024-06-211-0/+152
| | | | | | Add PyUnicodeWriter_WriteWideChar() and PyUnicodeWriter_DecodeUTF8Stateful() functions. Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
* gh-118789: Add `PyUnstable_Object_ClearWeakRefsNoCallbacks` (#118807)Sam Gross2024-06-181-0/+8
| | | | | | | | | | | | This exposes `PyUnstable_Object_ClearWeakRefsNoCallbacks` as an unstable C-API function to provide a thread-safe mechanism for clearing weakrefs without executing callbacks. Some C-API extensions need to clear weakrefs without calling callbacks, such as after running finalizers like we do in subtype_dealloc. Previously they could use `_PyWeakref_ClearRef` on each weakref, but that's not thread-safe in the free-threaded build. Co-authored-by: Petr Viktorin <encukou@gmail.com>
* gh-119182: Add PyUnicodeWriter C API (#119184)Victor Stinner2024-06-171-0/+221
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* gh-117398: Add datetime C-API type check test for subinterpreters (gh-119604)neonene2024-06-131-3/+45
| | | Check if the DateTime C-API type matches the datetime.date type on main and shared/isolated subinterpreters.
* gh-116560: Add PyLong_GetSign() public function (#116561)Sergey B Kirpichev2024-06-031-0/+14
| | | Co-authored-by: Victor Stinner <vstinner@python.org>
* gh-118692: Avoid creating unnecessary StopIteration instances for monitoring ↵Irit Katriel2024-05-211-4/+5
| | | | (#119216)
* gh-112075: use per-thread dict version pool (#118676)Dino Viehland2024-05-071-1/+13
| | | use thread state set of dict versions
* gh-118362: Fix thread safety around lookups from the type cache in the face ↵Dino Viehland2024-05-061-1/+2
| | | | | | | of concurrent mutators (#118454) Add _PyType_LookupRef and use incref before setting attribute on type Makes setting an attribute on a class and signaling type modified atomic Avoid adding re-entrancy exposing the type cache in an inconsistent state by decrefing after type is updated
* gh-111997: C-API for signalling monitoring events (#116413)Irit Katriel2024-05-042-0/+508
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* gh-82062: Fix support of parameter defaults on methods in extension modules ↵Sergey B Kirpichev2024-05-021-0/+10
| | | | | | | | | (GH-115270) Now inspect.signature() supports references to the module globals in parameter defaults on methods in extension modules. Previously it was only supported in functions. The workaround was to specify the fully qualified name, including the module name.
* gh-110850: Add PyTime_TimeRaw() function (#118394)Victor Stinner2024-05-011-0/+60
| | | | | | | | | | | | | | | | | Add "Raw" variant of PyTime functions: * PyTime_MonotonicRaw() * PyTime_PerfCounterRaw() * PyTime_TimeRaw() Changes: * Add documentation and tests. Tests release the GIL while calling raw clock functions. * py_get_system_clock() and py_get_monotonic_clock() now check that the GIL is hold by the caller if raise_exc is non-zero. * Reimplement "Unchecked" functions with raw clock functions. Co-authored-by: Petr Viktorin <encukou@gmail.com>
* gh-118422: Fix run_fileexflags() test (#118429)Victor Stinner2024-04-301-7/+6
| | | | | Don't test the undefined behavior of fileno() on a closed file, but use fstat() as a reliable test if the file was closed or not.
* gh-117968: Make the test for closed file more safe in the C API tests ↵Serhiy Storchaka2024-04-251-2/+4
| | | | | | | | (GH-118230) The behavior of fileno() after fclose() is undefined, but it is the only practical way to check whether the file was closed. Only test this on the known platforms (Linux, Windows, macOS), where we already tested that it works.
* gh-68114: Fix handling for removed PyArg_ParseTuple 'w' formatters (GH-8204)Joe Jevnik2024-04-231-0/+118
| | | | Co-authored-by: Joe Jevnik <joe@quantopian.com> Co-authored-by: Petr Viktorin <encukou@gmail.com>
* gh-117968: Add tests for the part of the PyRun family of the C API (GH-117982)Serhiy Storchaka2024-04-172-0/+113
| | | | Co-authored-by: NGRsoftlab <78017794+NGRsoftlab@users.noreply.github.com> Co-authored-by: Erlend E. Aasland <erlend.aasland@protonmail.com>
* gh-111140: PyLong_From/AsNativeBytes: Take *flags* rather than just ↵Steve Dower2024-04-051-7/+7
| | | | *endianness* (GH-116053)
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