cpython

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Cody Maloney 50082b8d89 gh-87613: Use AC vectorcall for float (GH-158201)

Move float.__new__ to AC vectorcall dropping the hand-written.

Running microbenchmark from the original add (`pyperf timeit "float(0)"`
in gh-86039) shows no significant performance change.

The generated name matches the hand-written name so the tp_vectorcall
slot is unchanged.

Update the vectorcall slot-parity test to include float.

2026-10-13 12:21:19 +02:00

clinic

gh-87613: Use AC vectorcall for float (GH-158201)

2026-10-13 12:21:19 +02:00

mimalloc

gh-152433: Allow building mimalloc for Windows UWP (GH-152477)

2026-09-07 17:35:51 +01:00

stringlib

gh-158803: Fix crash in bytes.join() on a concurrently mutated list (#158910 )

2026-10-08 15:58:00 +02:00

abstract.c

gh-157526: Call __instancecheck__ and __subclasscheck__ without creating a bound method (#157670 )

2026-09-22 11:16:30 +05:30

boolobject.c

gh-111178: remove redundant casts for functions with correct signatures (#131673 )

2025-04-01 17:18:11 +02:00

bytearrayobject.c

gh-158316: Avoid second buffer fetch on bytearray_decode() (#158485 )

2026-10-01 21:39:34 +00:00

bytes_methods.c

gh-150285: Fix too long docstrings in builtins (GH-150293)

2026-05-24 15:03:32 +03:00

bytesobject.c

gh-158585: Adjust _PyBytes_FormatEx() allocation (#158823 )

2026-10-05 03:09:25 +00:00

call.c

gh-151157: Speed up PyObject_CallMethod via _PyObject_GetMethod (#151158 )

2026-10-05 18:44:28 +00:00

capsule.c

gh-76595: PyCapsule_Import() now imports submodules if needed (GH-6898)

2026-08-10 21:36:15 +03:00

cellobject.c

Fix a stray newline in the cell type docstring (#157240 )

2026-09-10 16:54:47 +01:00

classobject.c

gh-145779: Improve classmethod/staticmethod scaling in free-threaded build (#145826 )

2026-03-17 14:24:44 -04:00

codeobject.c

gh-129724: Intern string constants in the compiler, not per code object (GH-159193)

2026-10-12 21:37:55 -07:00

complexobject.c

gh-155526: Don't check errno in abs(complex) (#155527 )

2026-09-11 17:46:59 +02:00

descrobject.c

gh-129040: Use wasm-gc to handle pointer casts in wasi (GH-158617)

2026-10-09 22:25:44 +00:00

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-159285: Fix crash when copying an empty dict fails with MemoryError (#159286 )

2026-10-13 03:07:34 +00:00

enumobject.c

gh-87613: Argument Clinic vectorcall decorator (GH-145381)

2026-09-10 16:53:36 +02:00

exceptions.c

gh-113318: Better implementation of @getter and @setter in Argument Clinic (GH-156066)

2026-09-19 18:48:39 +03:00

fileobject.c

gh-155496: Use Argument Clinic for more functions and methods (GH-158134)

2026-09-27 19:00:22 +03:00

floatobject.c

gh-87613: Use AC vectorcall for float (GH-158201)

2026-10-13 12:21:19 +02:00

frameobject.c

gh-124697: Represent inlined comprehensions as subscopes in the symbol table (#156819 )

2026-09-23 20:31:57 +01:00

funcobject.c

gh-113318: Better implementation of @getter and @setter in Argument Clinic (GH-156066)

2026-09-19 18:48:39 +03:00

genericaliasobject.c

gh-155752: Do not crash when GenericAlias parameters change during substitution (#155761 )

2026-08-13 22:14:24 -07:00

genobject.c

gh-144446: Fix thread safety of gi_frame, cr_frame and ag_frame in free-threading (#156037 )

2026-09-02 23:26:04 +05:30

interpolationobject.c

gh-150319: Replace all documentation which says "See PEP 585" (#150325 )

2026-06-02 21:13:34 +01:00

iterobject.c

gh-157361: Implement anext() in Python instead of C (#157362 )

2026-09-16 18:58:59 +05:30

lazyimportobject.c

gh-158140: Resolve lazily imported sibling submodules independently (#158521 )

2026-10-02 19:20:04 +02:00

listobject.c

gh-158592: Skip reallocation when shrinking a small list (gh-158787)

2026-10-08 08:58:23 +09:00

listsort.txt

gh-135551: Change how sorting picks minimum run length (#135553 )

2025-06-26 23:48:05 -05:00

longobject.c

gh-158451: Convert _PyUnicodeWriter_Prepare() to static inline function (#158466 )

2026-09-30 05:31:36 +02:00

memoryobject.c

gh-155742: Use PyMem_Malloc() in memoryview.hex() (#158582 )

2026-10-02 17:51:47 +02:00

methodobject.c

gh-157833: Fix specialized C calls with additional method flags (GH-157834)

2026-09-30 14:37:24 +01:00

moduleobject.c

gh-158918: Reduce C stack usage of _PyModule_IsPossiblyShadowing. (GH-158919)

2026-10-09 13:59:27 +02:00

namespaceobject.c

gh-155496: Use Argument Clinic for more functions and methods (GH-158134)

2026-09-27 19:00:22 +03:00

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

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.c

gh-130706: Add a fast path to _Py_Dealloc() for non-GC objects. (gh-158645)

2026-10-05 21:18:22 +09:00

obmalloc.c

gh-136872: Build pymalloc in sanitizer builds, but disable it by default (GH-157934)

2026-10-07 18:05:37 +02:00

odictobject.c

gh-151627: fix thread safety of OrderedDict iterator creation (#151688 )

2026-08-01 15:27:14 +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-129068: Make range iterators thread-safe (gh-142886)

2025-12-18 13:11:51 -05:00

README

Issue #18093 : Factor out the programs that embed the runtime

2014-07-25 21:52:14 +10:00

sentinelobject.c

gh-148829: Make sentinels' repr and module customizable (#149654 )

2026-05-19 09:18:56 -07:00

setobject.c

gh-152235: Defer GC tracking in set.union and set.difference (gh-152290)

2026-06-26 17:11:33 +00:00

sliceobject.c

gh-150319: Replace all documentation which says "See PEP 585" (#150325 )

2026-06-02 21:13:34 +01:00

structseq.c

gh-155496: Use Argument Clinic for more functions and methods (GH-158134)

2026-09-27 19:00:22 +03:00

templateobject.c

gh-150319: Replace all documentation which says "See PEP 585" (#150325 )

2026-06-02 21:13:34 +01:00

tupleobject.c

gh-87613: Argument Clinic vectorcall decorator (GH-145381)

2026-09-10 16:53:36 +02:00

typeobject.c

gh-149816: Fix race in subtype_getweakref in free-threading build (gh-150247)

2026-10-12 11:33:36 -07:00

typevarobject.c

gh-157621: Clear weakrefs for ParamSpec attributes (#157622 )

2026-09-17 02:48:25 +00:00

unicode_format.c

gh-158451: Reuse PyUnicodeWriter_WriteStr() in PyUnicode_Format() (#158467 )

2026-09-30 05:30:22 +02:00

unicode_formatter.c

gh-158451: Convert _PyUnicodeWriter_Prepare() to static inline function (#158466 )

2026-09-30 05:31:36 +02:00

unicode_writer.c

gh-158451: Remove _PyUnicodeWriter_WriteASCIIString() read-only optim (#159141 )

2026-10-10 20:09:32 +00:00

unicodectype.c

gh-129117: Add unicodedata.isxidstart() function (#140269 )

2025-10-30 10:18:12 +00:00

unicodeobject.c

gh-158585: Simplify PyBytesWriter_Finish() (#158822 )

2026-10-05 04:47:04 +02:00

unicodetype_db.h

fixes gh-157633: Update Unicode data to Unicode 18.0.0 (#157634 )

2026-09-16 11:34:53 -07:00

unionobject.c

gh-150319: Replace all documentation which says "See PEP 585" (#150325 )

2026-06-02 21:13:34 +01:00

weakrefobject.c

gh-80384: Check that callback is callable at weak reference creation (GH-151145)

2026-06-10 13:34:55 +03:00

README

Source files for various builtin objects