Name	Name	Last commit message	Last commit date
parent directory ..
cpython	cpython	gh-128813 : hide mixed-mode functions for complex arithmetic from C-API (	Apr 22, 2025
internal	internal	GH-131798 : JIT: Split CALL_TYPE_1 into several uops (GH-132419 )	Apr 22, 2025
Python.h	Python.h	gh-127271 : Replace use of PyCell_GET/SET (gh-127272 )	Dec 3, 2024
README.rst	README.rst	gh-101101 : Unstable C API tier (PEP 689) (GH-101102 )	Feb 28, 2023
abstract.h	abstract.h	gh-130947 : Add again PySequence_Fast() to the limited C API (#130948 )	Mar 13, 2025
audit.h	audit.h	gh-125604 : Move _Py_AuditHookEntry, etc. Out of pycore_runtime.h (gh-…	Oct 18, 2024
bltinmodule.h	bltinmodule.h	these builtins have to be initialized	May 9, 2009
boolobject.h	boolobject.h	gh-115754 : Add Py_GetConstant() function (#116883 )	Mar 21, 2024
bytearrayobject.h	bytearrayobject.h	gh-87347 : Add parenthesis around PyXXX_Check() arguments (#92815 )	Jun 16, 2022
bytesobject.h	bytesobject.h	gh-108765 : Move standard includes to Python.h (#108769 )	Sep 1, 2023
ceval.h	ceval.h	GH-120507 : Lower the `BEFORE_WITH` and `BEFORE_ASYNC_WITH` instructio…	Jun 18, 2024
codecs.h	codecs.h	Remove private _PyCodec_Lookup() function (#106269 )	Jun 30, 2023
compile.h	compile.h	gh-109596 : Ensure repeated rules in the grammar are not allowed and f…	Sep 22, 2023
complexobject.h	complexobject.h	gh-87347 : Add parenthesis around PyXXX_Check() arguments (#92815 )	Jun 16, 2022
critical_section.h	critical_section.h	gh-119344 : Make critical section API public (#119353 )	Jun 21, 2024
datetime.h	datetime.h	gh-87347 : Add parenthesis around macro arguments (#93915 )	Jun 20, 2022
descrobject.h	descrobject.h	gh-103509 : PEP 697 -- Limited C API for Extending Opaque Types (GH-10…	May 4, 2023
dictobject.h	dictobject.h	gh-106004 : PyDict_GetItemRef() should only be in the limited API 3.13 (…	Jul 25, 2023
dynamic_annotations.h	dynamic_annotations.h	gh-96959 : Update HTTP links which are redirected to HTTPS (GH-96961 )	Sep 24, 2022
enumobject.h	enumobject.h	Implement and apply PEP 322, reverse iteration	Nov 6, 2003
errcode.h	errcode.h	gh-107450 : Check for overflow in the tokenizer and fix overflow test (#…	Oct 16, 2023
exports.h	exports.h	gh-121040 : Use __attribute__((fallthrough)) (#121044 )	Jun 27, 2024
fileobject.h	fileobject.h	gh-106320 : Remove _PyIsSelectable_fd() C API (#107142 )	Jul 23, 2023
fileutils.h	fileutils.h	gh-108765 : Move stat() fiddling from pyport.h to fileutils.h (#108854 )	Sep 3, 2023
floatobject.h	floatobject.h	gh-120026 : soft deprecate Py_HUGE_VAL macro (#120027 )	Nov 1, 2024
frameobject.h	frameobject.h	bpo-45434 : Remove useless space in includes (GH-28963 )	Oct 14, 2021
genericaliasobject.h	genericaliasobject.h	bpo-44654 : Refactor and clean up the union type implementation (GH-27196	Jul 17, 2021
import.h	import.h	gh-105922 : Add PyImport_AddModuleRef() function (#105923 )	Jun 20, 2023
intrcheck.h	intrcheck.h	gh-106320 : Remove private _PyOS_IsMainThread() function (#108605 )	Aug 29, 2023
iterobject.h	iterobject.h	gh-106320 : Remove _PyAnextAwaitable_Type from the public C API (#108597 )	Aug 29, 2023
listobject.h	listobject.h	gh-114329 : Fix PyList_GetItemRef() limited C API definition (#117520 )	Apr 3, 2024
lock.h	lock.h	gh-117511 : Make PyMutex public in the non-limited API (#117731 )	Jun 20, 2024
longobject.h	longobject.h	gh-132639 : Adds PyLong_AsNativeBytes, PyLong_FromNativeBytes and PyLo…	Apr 21, 2025
marshal.h	marshal.h	gh-125063 : marshal: Add version 5, improve documentation (GH-126829 )	Nov 15, 2024
memoryobject.h	memoryobject.h	gh-79315 : Add Include/cpython/memoryobject.h header (#99723 )	Nov 23, 2022
methodobject.h	methodobject.h	gh-132097 : use a macro for semantically casting function pointers (#1…	Apr 18, 2025
modsupport.h	modsupport.h	gh-112136 : Restore removed _PyArg_Parser (#121262 )	Jul 3, 2024
moduleobject.h	moduleobject.h	gh-116322 : Rename PyModule_ExperimentalSetGIL to PyUnstable_Module_Se…	May 6, 2024
monitoring.h	monitoring.h	gh-111997 : C-API for signalling monitoring events (#116413 )	May 4, 2024
object.h	object.h	GH-127705 : Use `_PyStackRef`s in the default build. (GH-127875 )	Mar 10, 2025
objimpl.h	objimpl.h	gh-102013 : Move PyUnstable_GC_VisitObjects() to Include/cpython/objim…	Feb 16, 2024
opcode.h	opcode.h	gh-100239 : replace BINARY_SUBSCR & family by BINARY_OP with oparg NB_…	Feb 7, 2025
opcode_ids.h	opcode_ids.h	gh-130704 : Strength reduce `LOAD_FAST{_LOAD_FAST}` (#130708 )	Apr 1, 2025
osdefs.h	osdefs.h	gh-108765 : Reformat Include/osdefs.h (#108766 )	Sep 1, 2023
osmodule.h	osmodule.h	Issue #29058 : All stable API extensions added after Python 3.2 are now	Dec 27, 2016
patchlevel.h	patchlevel.h	Post 3.14.0a7	Apr 8, 2025
py_curses.h	py_curses.h	gh-123961 : Add a global state to _curses (#124729 )	Sep 29, 2024
pyatomic.h	pyatomic.h	gh-108724 : Add PyMutex and _PyParkingLot APIs (gh-109344 )	Sep 19, 2023
pybuffer.h	pybuffer.h	gh-102500 : Implement PEP 688 (#102521 )	May 4, 2023
pycapsule.h	pycapsule.h	gh-108240 : Add pycore_capsule.h internal header file (#108596 )	Aug 29, 2023
pydtrace.d	pydtrace.d	bpo-36842 : Implement PEP 578 (GH-12613 )	May 23, 2019
pydtrace.h	pydtrace.h	Fix `pydtrace.d` path comment in `Include/pydtrace.h` (#28539 )	Dec 31, 2022
pyerrors.h	pyerrors.h	gh-119521 : Rename IncompleteInputError to _IncompleteInputError and r…	Jun 24, 2024
pyexpat.h	pyexpat.h	gh-115398 : Revert `PyExpat_CAPI_MAGIC` version bump (GH-116411 )	Mar 6, 2024
pyframe.h	pyframe.h	gh-93937 , C API: Move PyFrame_GetBack() to Python.h (#93938 )	Jun 19, 2022
pyhash.h	pyhash.h	gh-111545 : Add Include/cpython/pyhash.h header file (#112063 )	Nov 15, 2023
pylifecycle.h	pylifecycle.h	gh-117987 : Restore several functions removed in Python 3.13 alpha 1 (G…	Apr 18, 2024
pymacconfig.h	pymacconfig.h	gh-110820 : Make sure processor specific defines are correct for Unive…	Dec 8, 2023
pymacro.h	pymacro.h	gh-128629 : Add Py_PACK_VERSION and Py_PACK_FULL_VERSION (GH-128630 )	Jan 9, 2025
pymath.h	pymath.h	gh-120026 : soft deprecate Py_HUGE_VAL macro (#120027 )	Nov 1, 2024
pymem.h	pymem.h	gh-85283 : Add PyMem_RawMalloc() to the limited C API (#108570 )	Oct 17, 2023
pyport.h	pyport.h	gh-132097 : use a macro for semantically casting function pointers (#1…	Apr 18, 2025
pystate.h	pystate.h	gh-108867 : Add PyThreadState_GetUnchecked() function (#108870 )	Oct 3, 2023
pystats.h	pystats.h	GH-124284 : Add stats for refcount operations on immortal objects (GH-…	Sep 23, 2024
pystrcmp.h	pystrcmp.h	Merged revisions 59541-59561 via svnmerge from	Dec 19, 2007
pystrtod.h	pystrtod.h	gh-106320 : Remove private float C API functions (#108430 )	Aug 24, 2023
pythonrun.h	pythonrun.h	GH-130396 : Include stack margin for debug windows builds (GH-130554 )	Feb 25, 2025
pythread.h	pythread.h	gh-87135 : Hang non-main threads that attempt to acquire the GIL durin…	Oct 2, 2024
pytypedefs.h	pytypedefs.h	bpo-45459 : Fix PyModuleDef_Slot type in the limited C API (GH-31668 )	Mar 3, 2022
rangeobject.h	rangeobject.h	gh-87347 : Add parenthesis around PyXXX_Check() arguments (#92815 )	Jun 16, 2022
refcount.h	refcount.h	GH-127705 : Move mortal decrefs to internal header and make sure _PyRe…	Mar 17, 2025
setobject.h	setobject.h	gh-87347 : Add parenthesis around PyXXX_Check() arguments (#92815 )	Jun 16, 2022
sliceobject.h	sliceobject.h	gh-115754 : Add Py_GetConstant() function (#116883 )	Mar 21, 2024
structmember.h	structmember.h	Fix typos in comments (#120188 )	Jun 7, 2024
structseq.h	structseq.h	gh-106168 : PyTuple_SET_ITEM() now checks the index (#106164 )	Jun 28, 2023
sysmodule.h	sysmodule.h	gh-125604 : Move _Py_AuditHookEntry, etc. Out of pycore_runtime.h (gh-…	Oct 18, 2024
traceback.h	traceback.h	gh-87347 : Add parenthesis around PyXXX_Check() arguments (#92815 )	Jun 16, 2022
tupleobject.h	tupleobject.h	gh-87347 : Add parenthesis around PyXXX_Check() arguments (#92815 )	Jun 16, 2022
typeslots.h	typeslots.h	gh-124153 : Implement `PyType_GetBaseByToken()` and `Py_tp_token` slot (…	Sep 18, 2024
unicodeobject.h	unicodeobject.h	gh-124502 : Add PyUnicode_Equal() function (#124504 )	Oct 7, 2024
warnings.h	warnings.h	bpo-35134 : Split warnings.h and weakrefobject.h (GH-29042 )	Oct 18, 2021
weakrefobject.h	weakrefobject.h	gh-105927 : Limit PyWeakref_GetRef() to limited C API 3.13 (#117091 )	Mar 20, 2024

Name

Last commit message

Last commit date

cpython

gh-128813 : hide mixed-mode functions for complex arithmetic from C-API (

Apr 22, 2025

internal

GH-131798 : JIT: Split CALL_TYPE_1 into several uops (GH-132419 )

Apr 22, 2025

Python.h

gh-127271 : Replace use of PyCell_GET/SET (gh-127272 )

Dec 3, 2024

README.rst

gh-101101 : Unstable C API tier (PEP 689) (GH-101102 )

Feb 28, 2023

abstract.h

gh-130947 : Add again PySequence_Fast() to the limited C API (#130948 )

Mar 13, 2025

audit.h

gh-125604 : Move _Py_AuditHookEntry, etc. Out of pycore_runtime.h (gh-…

Oct 18, 2024

bltinmodule.h

these builtins have to be initialized

May 9, 2009

boolobject.h

gh-115754 : Add Py_GetConstant() function (#116883 )

Mar 21, 2024

bytearrayobject.h

gh-87347 : Add parenthesis around PyXXX_Check() arguments (#92815 )

Jun 16, 2022

bytesobject.h

gh-108765 : Move standard includes to Python.h (#108769 )

Sep 1, 2023

ceval.h

GH-120507 : Lower the BEFORE_WITH and BEFORE_ASYNC_WITH instructio…

Jun 18, 2024

codecs.h

Remove private _PyCodec_Lookup() function (#106269 )

Jun 30, 2023

compile.h

gh-109596 : Ensure repeated rules in the grammar are not allowed and f…

Sep 22, 2023

complexobject.h

gh-87347 : Add parenthesis around PyXXX_Check() arguments (#92815 )

Jun 16, 2022

critical_section.h

gh-119344 : Make critical section API public (#119353 )

Jun 21, 2024

datetime.h

gh-87347 : Add parenthesis around macro arguments (#93915 )

Jun 20, 2022

descrobject.h

gh-103509 : PEP 697 -- Limited C API for Extending Opaque Types (GH-10…

May 4, 2023

dictobject.h

gh-106004 : PyDict_GetItemRef() should only be in the limited API 3.13 (…

Jul 25, 2023

dynamic_annotations.h

gh-96959 : Update HTTP links which are redirected to HTTPS (GH-96961 )

Sep 24, 2022

enumobject.h

Implement and apply PEP 322, reverse iteration

Nov 6, 2003

errcode.h

gh-107450 : Check for overflow in the tokenizer and fix overflow test (#…

Oct 16, 2023

exports.h

gh-121040 : Use __attribute__((fallthrough)) (#121044 )

Jun 27, 2024

fileobject.h

gh-106320 : Remove _PyIsSelectable_fd() C API (#107142 )

Jul 23, 2023

fileutils.h

gh-108765 : Move stat() fiddling from pyport.h to fileutils.h (#108854 )

Sep 3, 2023

floatobject.h

gh-120026 : soft deprecate Py_HUGE_VAL macro (#120027 )

Nov 1, 2024

frameobject.h

bpo-45434 : Remove useless space in includes (GH-28963 )

Oct 14, 2021

genericaliasobject.h

bpo-44654 : Refactor and clean up the union type implementation (GH-27196

Jul 17, 2021

import.h

gh-105922 : Add PyImport_AddModuleRef() function (#105923 )

Jun 20, 2023

intrcheck.h

gh-106320 : Remove private _PyOS_IsMainThread() function (#108605 )

Aug 29, 2023

iterobject.h

gh-106320 : Remove _PyAnextAwaitable_Type from the public C API (#108597 )

Aug 29, 2023

listobject.h

gh-114329 : Fix PyList_GetItemRef() limited C API definition (#117520 )

Apr 3, 2024

lock.h

gh-117511 : Make PyMutex public in the non-limited API (#117731 )

Jun 20, 2024

longobject.h

gh-132639 : Adds PyLong_AsNativeBytes, PyLong_FromNativeBytes and PyLo…

Apr 21, 2025

marshal.h

gh-125063 : marshal: Add version 5, improve documentation (GH-126829 )

Nov 15, 2024

memoryobject.h

gh-79315 : Add Include/cpython/memoryobject.h header (#99723 )

Nov 23, 2022

methodobject.h

gh-132097 : use a macro for semantically casting function pointers (#1…

Apr 18, 2025

modsupport.h

gh-112136 : Restore removed _PyArg_Parser (#121262 )

Jul 3, 2024

moduleobject.h

gh-116322 : Rename PyModule_ExperimentalSetGIL to PyUnstable_Module_Se…

May 6, 2024

monitoring.h

gh-111997 : C-API for signalling monitoring events (#116413 )

May 4, 2024

object.h

GH-127705 : Use _PyStackRefs in the default build. (GH-127875 )

Mar 10, 2025

objimpl.h

gh-102013 : Move PyUnstable_GC_VisitObjects() to Include/cpython/objim…

Feb 16, 2024

opcode.h

gh-100239 : replace BINARY_SUBSCR & family by BINARY_OP with oparg NB_…

Feb 7, 2025

opcode_ids.h

gh-130704 : Strength reduce LOAD_FAST{_LOAD_FAST} (#130708 )

Apr 1, 2025

osdefs.h

gh-108765 : Reformat Include/osdefs.h (#108766 )

Sep 1, 2023

osmodule.h

Issue #29058 : All stable API extensions added after Python 3.2 are now

Dec 27, 2016

patchlevel.h

Post 3.14.0a7

Apr 8, 2025

py_curses.h

gh-123961 : Add a global state to _curses (#124729 )

Sep 29, 2024

pyatomic.h

gh-108724 : Add PyMutex and _PyParkingLot APIs (gh-109344 )

Sep 19, 2023

pybuffer.h

gh-102500 : Implement PEP 688 (#102521 )

May 4, 2023

pycapsule.h

gh-108240 : Add pycore_capsule.h internal header file (#108596 )

Aug 29, 2023

pydtrace.d

bpo-36842 : Implement PEP 578 (GH-12613 )

May 23, 2019

pydtrace.h

Fix pydtrace.d path comment in Include/pydtrace.h (#28539 )

Dec 31, 2022

pyerrors.h

gh-119521 : Rename IncompleteInputError to _IncompleteInputError and r…

Jun 24, 2024

pyexpat.h

gh-115398 : Revert PyExpat_CAPI_MAGIC version bump (GH-116411 )

Mar 6, 2024

pyframe.h

gh-93937 , C API: Move PyFrame_GetBack() to Python.h (#93938 )

Jun 19, 2022

pyhash.h

gh-111545 : Add Include/cpython/pyhash.h header file (#112063 )

Nov 15, 2023

pylifecycle.h

gh-117987 : Restore several functions removed in Python 3.13 alpha 1 (G…

Apr 18, 2024

pymacconfig.h

gh-110820 : Make sure processor specific defines are correct for Unive…

Dec 8, 2023

pymacro.h

gh-128629 : Add Py_PACK_VERSION and Py_PACK_FULL_VERSION (GH-128630 )

Jan 9, 2025

pymath.h

gh-120026 : soft deprecate Py_HUGE_VAL macro (#120027 )

Nov 1, 2024

pymem.h

gh-85283 : Add PyMem_RawMalloc() to the limited C API (#108570 )

Oct 17, 2023

pyport.h

gh-132097 : use a macro for semantically casting function pointers (#1…

Apr 18, 2025

pystate.h

gh-108867 : Add PyThreadState_GetUnchecked() function (#108870 )

Oct 3, 2023

pystats.h

GH-124284 : Add stats for refcount operations on immortal objects (GH-…

Sep 23, 2024

pystrcmp.h

Merged revisions 59541-59561 via svnmerge from

Dec 19, 2007

pystrtod.h

gh-106320 : Remove private float C API functions (#108430 )

Aug 24, 2023

pythonrun.h

GH-130396 : Include stack margin for debug windows builds (GH-130554 )

Feb 25, 2025

pythread.h

gh-87135 : Hang non-main threads that attempt to acquire the GIL durin…

Oct 2, 2024

pytypedefs.h

bpo-45459 : Fix PyModuleDef_Slot type in the limited C API (GH-31668 )

Mar 3, 2022

rangeobject.h

gh-87347 : Add parenthesis around PyXXX_Check() arguments (#92815 )

Jun 16, 2022

refcount.h

GH-127705 : Move mortal decrefs to internal header and make sure _PyRe…

Mar 17, 2025

setobject.h

gh-87347 : Add parenthesis around PyXXX_Check() arguments (#92815 )

Jun 16, 2022

sliceobject.h

gh-115754 : Add Py_GetConstant() function (#116883 )

Mar 21, 2024

structmember.h

Fix typos in comments (#120188 )

Jun 7, 2024

structseq.h

gh-106168 : PyTuple_SET_ITEM() now checks the index (#106164 )

Jun 28, 2023

sysmodule.h

gh-125604 : Move _Py_AuditHookEntry, etc. Out of pycore_runtime.h (gh-…

Oct 18, 2024

traceback.h

gh-87347 : Add parenthesis around PyXXX_Check() arguments (#92815 )

Jun 16, 2022

tupleobject.h

gh-87347 : Add parenthesis around PyXXX_Check() arguments (#92815 )

Jun 16, 2022

typeslots.h

gh-124153 : Implement PyType_GetBaseByToken() and Py_tp_token slot (…

Sep 18, 2024

unicodeobject.h

gh-124502 : Add PyUnicode_Equal() function (#124504 )

Oct 7, 2024

warnings.h

bpo-35134 : Split warnings.h and weakrefobject.h (GH-29042 )

Oct 18, 2021

weakrefobject.h

gh-105927 : Limit PyWeakref_GetRef() to limited C API 3.13 (#117091 )

Mar 20, 2024

The Python C API

The C API is divided into these sections:

Include/: Limited API
Include/cpython/: CPython implementation details
Include/cpython/, names with the PyUnstable_ prefix: API that can change between minor releases
Include/internal/, and any name with _ prefix: The internal API

Information on changing the C API is available in the developer guide

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

Files

Include

Include

README.rst

The Python C API

Files

Include

Directory actions

More options

Directory actions

More options

Latest commit

History

Include

Folders and files

parent directory

README.rst

The Python C API