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cpython/Objects
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Edward Xu ce79154176
gh-139103: fix free-threading dataclass.__init__ perf issue (gh-141596) 
The dataclasses `__init__` function is generated dynamically by a call to `exec()` and so doesn't have deferred reference counting enabled. Enable deferred reference counting on functions when assigned as an attribute to type objects to avoid reference count contention when creating dataclass instances.
2025-11-19 00:57:59 +00:00
..
clinic gh-139871: Add bytearray.take_bytes([n]) to efficiently extract bytes (GH-140128) 2025-11-13 13:19:44 +00:00
mimalloc gh-123826: Fix unused function warnings in mimalloc on NetBSD (#123827) 2024-09-09 13:22:28 -04:00
stringlib gh-139353: Rename formatter_unicode.c to unicode_formatter.c (#139723) 2025-10-08 14:56:00 +02:00
abstract.c gh-130821: Add type information to error messages for invalid return type (GH-130835) 2025-08-14 11:04:41 +03:00
boolobject.c gh-111178: remove redundant casts for functions with correct signatures (#131673) 2025-04-01 17:18:11 +02:00
bytearrayobject.c gh-139871: Add bytearray.take_bytes([n]) to efficiently extract bytes (GH-140128) 2025-11-13 13:19:44 +00:00
bytes_methods.c gh-129813, PEP 782: Use PyBytesWriter in _Py_bytes_maketrans() (#139044) 2025-09-17 17:43:30 +02:00
bytesobject.c gh-139871: Add bytearray.take_bytes([n]) to efficiently extract bytes (GH-140128) 2025-11-13 13:19:44 +00:00
call.c gh-111489: Remove _PyTuple_FromArray() alias (#139973) 2025-10-11 22:58:14 +02:00
capsule.c gh-111178: fix UBSan failures in Objects/capsule.c (GH-128239) 2025-01-08 14:55:04 +01:00
cellobject.c gh-127271: Replace use of PyCell_GET/SET (gh-127272) 2024-12-03 10:33:06 -08:00
classobject.c gh-135607: remove null checking of weakref list in dealloc of extension modules and objects (#135614) 2025-06-30 11:14:31 +00:00
codeobject.c gh-139109: A new tracing JIT compiler frontend for CPython (GH-140310) 2025-11-13 18:08:32 +00:00
complexobject.c gh-141004: soft-deprecate Py_INFINITY macro (#141033) 2025-11-12 13:44:49 +01:00
descrobject.c gh-111489: Remove _PyTuple_FromArray() alias (#139973) 2025-10-11 22:58:14 +02:00
dictnotes.txt bpo-46845: Reduce dict size when all keys are Unicode (GH-31564) 2022-03-02 08:09:28 +09:00
dictobject.c gh-131510: Use PyUnstable_Unicode_GET_CACHED_HASH() (GH-141520) 2025-11-14 11:13:24 +01:00
enumobject.c gh-137609: Change names of some positional-only parameters in builtins (GH-137611) 2025-08-25 15:36:06 +03:00
exceptions.c gh-111489: Remove _PyTuple_FromArray() alias (#139973) 2025-10-11 22:58:14 +02:00
fileobject.c gh-130821: Add type information to error messages for invalid return type (GH-130835) 2025-08-14 11:04:41 +03:00
floatobject.c gh-141004: soft-deprecate Py_INFINITY macro (#141033) 2025-11-12 13:44:49 +01:00
frameobject.c gh-139109: A new tracing JIT compiler frontend for CPython (GH-140310) 2025-11-13 18:08:32 +00:00
funcobject.c gh-139109: A new tracing JIT compiler frontend for CPython (GH-140310) 2025-11-13 18:08:32 +00:00
genericaliasobject.c gh-138479: Ensure that __typing_subst__ returns a tuple (GH-138482) 2025-09-11 06:39:09 -04:00
genobject.c gh-140373: Correctly emit PY_UNWIND event when generator is closed (GH-140767) 2025-10-31 10:09:22 +00:00
interpolationobject.c gh-132661: Add default value (of "") for Interpolation.expression (#136441) 2025-07-10 16:27:41 +02:00
iterobject.c gh-130821: Add type information to error messages for invalid return type (GH-130835) 2025-08-14 11:04:41 +03:00
listobject.c gh-140009: Improve performance of list_extend_dictitems by using PyTuple_FromArray (#140010) 2025-10-13 15:58:25 +05:30
listsort.txt gh-135551: Change how sorting picks minimum run length (#135553) 2025-06-26 23:48:05 -05:00
lnotab_notes.txt gh-119786: add code object doc, inline locations.md into it (#126832) 2024-11-22 19:27:41 +00:00
longobject.c gh-111389: replace deprecated occurrences of _PyHASH_* macros (#141236) 2025-11-09 15:14:08 +01:00
memoryobject.c gh-129813, PEP 782: Use PyBytesWriter in memoryview (#138836) 2025-09-13 18:36:05 +02:00
methodobject.c gh-135607: remove null checking of weakref list in dealloc of extension modules and objects (#135614) 2025-06-30 11:14:31 +00:00
moduleobject.c gh-140550: Use a bool for the Py_mod_gil value (GH-141519) 2025-11-14 10:38:49 +01:00
namespaceobject.c gh-136193: Improve TypeError msg when comparing two SimpleNamespaces (#136195) 2025-07-02 14:32:41 +03:00
object.c gh-141070: Add PyUnstable_Object_Dump() function (#141072) 2025-11-18 16:13:13 +00:00
object_layout.md GH-115776: Allow any fixed sized object to have inline values (GH-123192) 2024-08-21 15:52:04 +01:00
object_layout_312.gv GH-115776: Embed the values array into the object, for "normal" Python objects. (GH-116115) 2024-04-02 11:59:21 +01:00
object_layout_312.png gh-71648: Optimize PNG files (GH-138842) 2025-09-12 20:13:05 +00:00
object_layout_313.gv GH-115776: Embed the values array into the object, for "normal" Python objects. (GH-116115) 2024-04-02 11:59:21 +01:00
object_layout_313.png gh-71648: Optimize PNG files (GH-138842) 2025-09-12 20:13:05 +00:00
object_layout_full_312.gv GH-96068: Document object layout (GH-96069) 2022-08-23 13:55:43 +01:00
object_layout_full_312.png gh-71648: Optimize PNG files (GH-138842) 2025-09-12 20:13:05 +00:00
object_layout_full_313.gv GH-115776: Embed the values array into the object, for "normal" Python objects. (GH-116115) 2024-04-02 11:59:21 +01:00
object_layout_full_313.png gh-71648: Optimize PNG files (GH-138842) 2025-09-12 20:13:05 +00:00
obmalloc.c GH-131033: Enable the optimizing macros UNLIKELY and LIKELY for Clang (GH-131019) 2025-08-25 21:59:52 +01:00
odictobject.c gh-125996: fix thread safety of collections.OrderedDict (#133734) 2025-10-13 22:55:07 +05:30
picklebufobject.c gh-135607: remove null checking of weakref list in dealloc of extension modules and objects (#135614) 2025-06-30 11:14:31 +00:00
rangeobject.c GH-141312: Allow only integers to longrangeiter_setstate state (GH-141317) 2025-11-14 14:52:01 +00:00
README Issue #18093: Factor out the programs that embed the runtime 2014-07-25 21:52:14 +10:00
setobject.c gh-140476: optimize PySet_Add for frozenset in free-threading (#140440) 2025-11-12 01:57:21 +05:30
sliceobject.c gh-111178: Fix function signatures for multiple tests (#131496) 2025-03-20 12:27:03 +01:00
structseq.c gh-111489: Remove _PyTuple_FromArray() alias (#139973) 2025-10-11 22:58:14 +02:00
templateobject.c gh-132661: Disallow Template/str concatenation after PEP 750 spec update (#135996) 2025-07-21 08:44:26 +02:00
tupleobject.c GH-139951: Fix major GC performance regression (GH-140262) 2025-10-21 15:22:15 +01:00
typeobject.c gh-139103: fix free-threading dataclass.__init__ perf issue (gh-141596) 2025-11-19 00:57:59 +00:00
typeslots.inc Revert "gh-133395: add option for extension modules to specialize BINARY_OP/SUBSCR, apply to arrays (#133396)" (#133498) 2025-05-06 13:12:26 +03:00
typeslots.py gh-124153: Implement PyType_GetBaseByToken() and Py_tp_token slot (GH-124163) 2024-09-18 09:18:19 +02:00
typevarobject.c gh-141376: Fix exported symbols (GH-141377) 2025-11-11 09:21:24 +01:00
unicode_format.c gh-139353: Add Objects/unicode_format.c file (#139491) 2025-10-10 12:52:59 +02:00
unicode_formatter.c gh-139353: Rename formatter_unicode.c to unicode_formatter.c (#139723) 2025-10-08 14:56:00 +02:00
unicode_writer.c gh-139353: Add Objects/unicode_writer.c file (#139911) 2025-10-30 14:36:15 +01:00
unicodectype.c gh-129117: Add unicodedata.isxidstart() function (#140269) 2025-10-30 10:18:12 +00:00
unicodeobject.c gh-141070: Add PyUnstable_Object_Dump() function (#141072) 2025-11-18 16:13:13 +00:00
unicodetype_db.h closes gh-138706: update Unicode to 17.0.0 (#138719) 2025-09-11 09:58:39 -07:00
unionobject.c gh-140348: Fix using | on unusual objects plus Unions (#140383) 2025-11-03 06:50:37 -08:00
weakrefobject.c gh-133644: remove PyWeakref_GetObject and PyWeakref_GET_OBJECT (GH-133657) 2025-09-24 11:25:56 +02:00

README 

Source files for various builtin objects