cpython

clinic

gh-142349: Implement PEP 810 - Explicit lazy imports (#142351 )

2026-02-12 00:15:33 +00:00

frozen_modules

gh-97669: Create Tools/build/ directory (#97963 )

2022-10-17 12:01:00 +02:00

_contextvars.c

gh-128384: Use a context variable for warnings.catch_warnings (gh-130010)

2025-04-09 16:18:54 -07:00

_warnings.c

GH-145247: Use _PyTuple_FromPair in Parser and Python (#145842 )

2026-03-11 21:08:18 +00:00

asdl.c

bpo-43244: Remove ast.h, asdl.h, Python-ast.h headers (GH-24933)

2021-03-23 20:47:40 +01:00

asm_trampoline.S

gh-136459: Add perf trampoline support for macOS (#136461 )

2025-07-22 16:47:24 +01:00

assemble.c

gh-87859: Track Code Object Local Kinds For Arguments (gh-132980)

2025-04-29 02:21:47 +00:00

ast_preprocess.c

gh-143055: Implementation of PEP 798 (#143056 )

2026-01-30 20:37:52 -08:00

ast_unparse.c

gh-143055: Fix crash in AST unparser when unparsing dict comprehension unpacking (#145556 )

2026-03-09 10:37:23 -07:00

ast.c

gh-143055: Implementation of PEP 798 (#143056 )

2026-01-30 20:37:52 -08:00

bltinmodule.c

GH-145247: Use _PyTuple_FromPair in Parser and Python (#145842 )

2026-03-11 21:08:18 +00:00

bootstrap_hash.c

GH-131238: Core header refactor (GH-131250)

2025-03-17 09:19:04 +00:00

brc.c

Fix typos in documentation and comments (#119763 )

2024-06-04 10:22:22 +00:00

bytecodes.c

gh-145866: Convert CALL_INTRINSIC_1 to leave its inputs on the stack to be cleaned up by _POP_TOP. (GH-145964)

2026-03-16 11:58:12 +00:00

ceval_gil.c

gh-144748: Make PyErr_CheckSignals raise the exception scheduled by PyThreadState_SetAsyncExc (GH-145178)

2026-03-02 11:47:32 +01:00

ceval_macros.h

gh-120321: Make gi_yieldfrom thread-safe in free-threading build (#144292 )

2026-01-30 12:20:27 -05:00

ceval.c

gh-145376: Fix refleaks and double decref for code in Python/ (#145666 )

2026-03-10 10:46:13 +01:00

ceval.h

gh-142349: Implement PEP 810 - Explicit lazy imports (#142351 )

2026-02-12 00:15:33 +00:00

codecs.c

Python/codecs.c: Remove unused forward declaration (#139511 )

2025-10-03 13:33:49 +02:00

codegen.c

gh-145187: Fix crash on invalid type parameter bound expression in conditional block (GH-145188)

2026-02-24 12:44:57 -08:00

compile.c

GH-145247: Use _PyTuple_FromPair in Parser and Python (#145842 )

2026-03-11 21:08:18 +00:00

condvar.h

gh-104530: Enable native Win32 condition variables by default (GH-104531)

2024-02-02 13:50:51 +00:00

config_common.h

gh-76785: Add PyInterpreterConfig Helpers (gh-117170)

2024-04-02 20:35:52 +00:00

context.c

gh-116738: make entering of contextvars.Context thread safe (#143074 )

2026-01-06 12:24:02 +05:30

critical_section.c

gh-144513: Skip critical section locking during stop-the-world (gh-144524)

2026-02-06 15:14:08 +00:00

crossinterp_data_lookup.h

gh-135443: Sometimes Fall Back to __main__.__dict__ For Globals (gh-135491)

2025-06-16 17:34:19 -06:00

crossinterp_exceptions.h

gh-132775: Clean Up Cross-Interpreter Error Handling (gh-135369)

2025-06-13 16:45:21 -06:00

crossinterp.c

gh-145376: Fix refleaks and double decref for code in Python/ (#145666 )

2026-03-10 10:46:13 +01:00

dtoa.c

gh-145633: Remove support for ancient ARM platforms with mixed-endian doubles (#145634 )

2026-03-11 12:39:24 +01:00

dup2.c

gh-108765: Python.h no longer includes <unistd.h> (#108783 )

2023-09-02 16:50:18 +02:00

dynamic_annotations.c

bpo-32241: Add the const qualifire to declarations of umodifiable strings. (#4748 )

2017-12-12 13:55:04 +02:00

dynload_hpux.c

gh-88402: Add new sysconfig variables on Windows (GH-110049)

2023-10-04 22:50:29 +00:00

dynload_shlib.c

gh-131238: Remove more includes from pycore_interp.h (#131480 )

2025-03-19 23:01:32 +01:00

dynload_stub.c

gh-88402: Add new sysconfig variables on Windows (GH-110049)

2023-10-04 22:50:29 +00:00

dynload_win.c

gh-131942: Use the Python-specific Py_DEBUG macro rather than _DEBUG in Windows-related C code (GH-131944)

2025-05-08 15:01:25 +00:00

emscripten_signal.c

GH-108614: Unbreak emscripten build (GH-109132)

2023-09-08 17:54:45 +01:00

emscripten_syscalls.c

gh-124621: Emscripten: Fix __syscall_ioctl patch (GH-136993)

2025-07-22 15:05:26 +02:00

emscripten_trampoline_inner.c

gh-128627: Use __builtin_wasm_test_function_pointer_signature for Emscripten trampoline (#137470 )

2025-09-17 15:33:55 +01:00

emscripten_trampoline.c

gh-145037: Fix Emscripten trampoline with emcc >= 4.0.19 (#145038 )

2026-02-26 06:21:05 +08:00

errors.c

gh-143547: Fix PyErr_FormatUnraisable() fallback (#143557 )

2026-01-09 13:16:22 +01:00

executor_cases.c.h

gh-145866: Convert CALL_INTRINSIC_1 to leave its inputs on the stack to be cleaned up by _POP_TOP. (GH-145964)

2026-03-16 11:58:12 +00:00

fileutils.c

gh-42400: Fix buffer overflow in _Py_wrealpath() for very long paths (#141529 )

2025-11-18 17:34:58 +01:00

flowgraph.c

GH-143493: Conform to spec for generator expressions while supporting virtual iterators (GH-143569)

2026-01-16 09:11:58 +00:00

frame.c

gh-144446: Fix some frame object thread-safety issues (gh-144479)

2026-02-06 09:43:36 -05:00

frozen.c

gh-145278: Revert "freeze encodings (partially) and linecache (#145279 )" (#145689 )

2026-03-09 18:18:14 +00:00

frozenmain.c

Use PyConfig_Get() in frozenmain.c (#137421 )

2025-08-06 14:33:28 +02:00

future.c

gh-126139: Improve error message location for future statement with unknown feature (#126140 )

2024-10-29 23:57:59 +00:00

gc_free_threading.c

gh-144054: no deferred refcount for untracked (gh-144081)

2026-01-20 10:01:09 -08:00

gc_gil.c

gh-100240: Use a consistent implementation for freelists (#121934 )

2024-07-22 12:08:27 -04:00

gc.c

gh-141070: Rename PyUnstable_Object_Dump to PyObject_Dump (GH-142848)

2026-01-16 09:19:43 -05:00

generated_cases.c.h

gh-145866: Convert CALL_INTRINSIC_1 to leave its inputs on the stack to be cleaned up by _POP_TOP. (GH-145964)

2026-03-16 11:58:12 +00:00

getargs.c

gh-144175: Add PyArg_ParseArray() function (#144283 )

2026-03-06 21:57:44 +00:00

getcompiler.c

gh-141341: Rename COMPILER macro to _Py_COMPILER on Windows (#141342 )

2025-11-10 15:50:51 +01:00

getcopyright.c

gh-126133: Only use start year in PSF copyright, remove end years (#126236 )

2024-11-12 15:59:19 +02:00

getopt.c

GH-133336: Remove reserved `-J` flag for Jython (#133444 )

2025-05-05 15:09:19 +00:00

getplatform.c

bpo-32150: Expand tabs to spaces in C files. (#4583 )

2017-11-28 17:56:10 +02:00

getversion.c

gh-119132: Remove "experimental" tag from the CPython free-threading. (gh-135550)

2025-06-16 23:32:52 +09:00

hamt.c

GH-145247: Use _PyTuple_FromPair in Parser and Python (#145842 )

2026-03-11 21:08:18 +00:00

hashtable.c

gh-111545: Add Py_HashPointer() function (#112096 )

2023-12-06 15:09:22 +01:00

import.c

gh-145055: Accept frozendict for globals in exec() and eval() (#145072 )

2026-03-05 12:35:43 +01:00

importdl.c

gh-140011: Delete importdl assertion that prevents importing embedded modules from packages (GH-141605)

2025-11-26 14:12:49 +01:00

index_pool.c

gh-91048: Refactor and optimize remote debugging module (#134652 )

2025-05-25 20:19:29 +00:00

initconfig.c

gh-145990: sort --help-env sections by environment variable name (GH-145997)

2026-03-15 15:22:57 -07:00

instruction_sequence.c

GH-143493: Conform to spec for generator expressions while supporting virtual iterators (GH-143569)

2026-01-16 09:11:58 +00:00

instrumentation.c

GH-144651: Optimize the new uops added when recording values during tracing. (GH-144948)

2026-02-19 11:52:57 +00:00

interpconfig.c

GH-131238: Core header refactor (GH-131250)

2025-03-17 09:19:04 +00:00

intrinsics.c

gh-111489: Remove _PyTuple_FromArray() alias (#139973 )

2025-10-11 22:58:14 +02:00

jit.c

gh-144888: Replace bloom filter linked lists with continuous arrays to optimize executor invalidating performance (GH-145873)

2026-03-16 15:58:18 +00:00

legacy_tracing.c

gh-137400: Fix thread-safety issues when profiling all threads (gh-137518)

2025-08-13 14:15:12 -04:00

lock.c

gh-120321: Make gi_yieldfrom thread-safe in free-threading build (#144292 )

2026-01-30 12:20:27 -05:00

marshal.c

GH-145247: Use _PyTuple_FromPair in Parser and Python (#145842 )

2026-03-11 21:08:18 +00:00

modsupport.c

gh-137210: Add a struct, slot & function for checking an extension's ABI (GH-137212)

2025-09-05 16:23:18 +02:00

mysnprintf.c

Add a warning message about PyOS_snprintf (#95993 )

2022-10-07 11:49:53 -07:00

mystrtoul.c

gh-108765: Python.h no longer includes <ctype.h> (#108831 )

2023-09-03 18:54:27 +02:00

object_stack.c

gh-100240: Use a consistent implementation for freelists (#121934 )

2024-07-22 12:08:27 -04:00

opcode_targets.h

gh-142982: Specialize CALL_FUNCTION_EX (GH-143391)

2026-01-06 20:34:08 +00:00

optimizer_analysis.c

gh-145214: Narrow _GUARD_TOS_ANY_{SET,DICT} by using probable type (gh-145215)

2026-03-03 09:58:38 +09:00

optimizer_bytecodes.c

gh-146018: Disable over-aggressive optimization for _GUARD_CODE_VERSION (GH-145923)

2026-03-16 13:52:56 +00:00

optimizer_cases.c.h

gh-146018: Disable over-aggressive optimization for _GUARD_CODE_VERSION (GH-145923)

2026-03-16 13:52:56 +00:00

optimizer_symbols.c

gh-145214: Narrow _GUARD_TOS_ANY_{SET,DICT} by using probable type (gh-145215)

2026-03-03 09:58:38 +09:00

optimizer.c

gh-144888: Replace bloom filter linked lists with continuous arrays to optimize executor invalidating performance (GH-145873)

2026-03-16 15:58:18 +00:00

parking_lot.c

gh-137433: Fix deadlock with stop-the-world and daemon threads (gh-137735)

2025-09-16 09:21:58 +01:00

pathconfig.c

gh-133644: Remove deprecated Python initialization getter functions (#133661 )

2025-05-09 11:39:23 +00:00

perf_jit_trampoline.c

gh-144194: Fix mmap failure check in perf_jit_trampoline.c (#143713 )

2026-01-28 13:30:17 +00:00

perf_trampoline.c

gh-144766: Fix a crash in fork child process when perf support is enabled. (#144795 )

2026-02-14 11:41:28 +00:00

preconfig.c

gh-145092: Fix compiler warning for memchr() and wcschr() returning const pointer (GH-145093)

2026-02-22 10:01:27 +02:00

pyarena.c

Chore: Fix typo in pyarena.c (#126527 )

2024-11-07 16:37:41 +01:00

pyctype.c

Include files missed in r72044.

2009-04-27 20:54:42 +00:00

pyfpe.c

bpo-46315: Add ifdef HAVE_ feature checks for WASI compatibility (GH-30507)

2022-01-13 09:46:04 +01:00

pyhash.c

gh-141226: Deprecate PEP-456 support for embedders (#141287 )

2026-02-21 12:42:13 +01:00

pylifecycle.c

gh-144888: Replace bloom filter linked lists with continuous arrays to optimize executor invalidating performance (GH-145873)

2026-03-16 15:58:18 +00:00

pymath.c

bpo-45440: Remove pymath.c fallbacks (GH-28977)

2021-10-15 19:45:34 +02:00

pystate.c

gh-144888: Replace bloom filter linked lists with continuous arrays to optimize executor invalidating performance (GH-145873)

2026-03-16 15:58:18 +00:00

pystats.c

GH-135379: Top of stack caching for the JIT. (GH-135465)

2025-12-11 10:32:52 +00:00

pystrcmp.c

gh-108767: Replace ctype.h functions with pyctype.h functions (#108772 )

2023-09-01 18:36:53 +02:00

pystrhex.c

gh-144015: Add portable SIMD optimization for bytes.hex() et. al. (GH-143991)

2026-02-22 19:19:03 -08:00

pystrtod.c

gh-141004: soft-deprecate Py_INFINITY macro (#141033 )

2025-11-12 13:44:49 +01:00

Python-ast.c

gh-142349: Implement PEP 810 - Explicit lazy imports (#142351 )

2026-02-12 00:15:33 +00:00

Python-tokenize.c

GH-145247: Use _PyTuple_FromPair in Parser and Python (#145842 )

2026-03-11 21:08:18 +00:00

pythonrun.c

gh-145055: Accept frozendict for globals in exec() and eval() (#145072 )

2026-03-05 12:35:43 +01:00

pytime.c

gh-145731: Fix negative timestamp during DST on Windows (GH-145728)

2026-03-10 09:45:07 +01:00

qsbr.c

gh-144438: Fix false sharing between QSBR and tlbc_index (gh-144554)

2026-02-17 11:12:25 -05:00

README

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

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

record_functions.c.h

gh-145197: Fix JIT trace crash when recording function from cleared generator frame (GH-145220)

2026-02-25 16:52:53 +00:00

remote_debug.h

gh-144316: Fix missing exception in _remote_debugging with debug=False (#144442 )

2026-02-26 21:14:34 +00:00

remote_debugging.c

gh-138122: Implement frame caching in RemoteUnwinder to reduce memory reads (#142137 )

2025-12-06 22:37:34 +00:00

specialize.c

gh-100239: Use `PyFloat_AS_DOUBLE and _PyLong_IsZero`` in the float / compactlong specializations (#144826 )

2026-02-19 21:45:59 +02:00

stackrefs.c

gh-131527: Stackref debug borrow checker (#140599 )

2025-11-05 11:12:56 -08:00

stdlib_module_names.h

gh-81313: Add the math.integer module (PEP-791) (GH-133909)

2025-10-31 16:13:43 +02:00

structmember.c

gh-41779: Allow defining any __slots__ for a class derived from tuple (GH-141763)

2026-01-06 11:36:00 +02:00

suggestions.c

GH-131238: Core header refactor (GH-131250)

2025-03-17 09:19:04 +00:00

symtable.c

gh-145701: Fix __classdict__ & __conditional_annotations__ in class-scope inlined comprehensions (GH-145702)

2026-03-09 12:56:41 -07:00

sysmodule.c

gh-122575: gh-142349: fix sys.flags tuple size (it unintentionally increased) (GH-145988)

2026-03-15 20:30:01 +00:00

thread_nt.h

gh-134745: Change PyThread_allocate_lock() implementation to PyMutex (#134747 )

2025-05-30 10:15:47 +00:00

thread_pthread_stubs.h

gh-125161: return non zero value in pthread_self on wasi (#125303 )

2024-10-13 20:59:41 +05:30

thread_pthread.h

gh-137884: Added threading.get_native_id() on Illumos/Solaris (GH-137927)

2025-08-20 17:10:44 +00:00

thread.c

gh-134745: Use "pymutex" for sys.thread_info on Windows (#141140 )

2025-11-06 16:10:39 +01:00

tier2_engine.md

Docs: fix spelling of the word 'transferring' (#116641 )

2024-03-13 23:53:32 +01:00

traceback.c

gh-145792: Fix incorrect alloca allocation size in traceback.c (#145814 )

2026-03-13 13:15:26 +01:00

tracemalloc.c

gh-144763: Don't detach the GIL in tracemalloc (#144779 )

2026-02-18 15:57:48 +00:00

uniqueid.c

gh-128923: Use zero to indicate unassigned unique id (#128925 )

2025-01-17 16:42:27 +01:00

vm-state.md

gh-133079: Remove Py_C_RECURSION_LIMIT & PyThreadState.c_recursion_remaining (GH-133080)

2025-04-29 12:56:20 +02:00