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cpython/Python
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Sam Gross 0fdf6a9a71
gh-144513: Skip critical section locking during stop-the-world (gh-144524) 
When the interpreter is in a stop-the-world pause, critical sections
don't need to acquire locks since no other threads can be running.
This avoids a potential deadlock where lock fairness hands off ownership
to a thread that has already suspended for stop-the-world.
2026-02-06 15:14:08 +00:00
..
clinic
gh-135801: Add the module parameter to compile() etc (GH-139652)
2025-11-13 13:21:32 +02:00
frozen_modules
…
_contextvars.c
…
_warnings.c
gh-135801: Improve filtering by module in warn_explicit() without module argument (GH-140151)
2025-10-30 15:55:39 +02:00
asdl.c
…
asm_trampoline.S
gh-136459: Add perf trampoline support for macOS (#136461)
2025-07-22 16:47:24 +01:00
assemble.c
…
ast_preprocess.c
gh-143055: Implementation of PEP 798 (#143056)
2026-01-30 20:37:52 -08:00
ast_unparse.c
gh-132661: Disallow Template/str concatenation after PEP 750 spec update (#135996)
2025-07-21 08:44:26 +02:00
ast.c
gh-143055: Implementation of PEP 798 (#143056)
2026-01-30 20:37:52 -08:00
bltinmodule.c
gh-135801: Add the module parameter to compile() etc (GH-139652)
2025-11-13 13:21:32 +02:00
bootstrap_hash.c
…
brc.c
…
bytecodes.c
gh-139103: Improve namedtuple scaling in free-threaded build (gh-144332)
2026-02-06 09:43:05 -05:00
ceval_gil.c
GH-142513: Reimplement executor management (GH-142931)
2025-12-18 16:43:44 +00:00
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-139103: Use borrowed references for positional args in _PyStack_UnpackDict (gh-144407)
2026-02-03 12:24:35 -05:00
ceval.h
gh-142913: Add test case for interpreter generator w/ overridden opcodes (#142911)
2026-01-16 10:33:29 -08:00
codecs.c
Python/codecs.c: Remove unused forward declaration (#139511)
2025-10-03 13:33:49 +02:00
codegen.c
gh-143055: Implementation of PEP 798 (#143056)
2026-01-30 20:37:52 -08:00
compile.c
GH-143493: Conform to spec for generator expressions while supporting virtual iterators (GH-143569)
2026-01-16 09:11:58 +00:00
condvar.h
…
config_common.h
…
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
…
crossinterp.c
gh-143377: fix crashes in _interpreters.capture_exception (#143418)
2026-01-10 12:37:54 +01:00
dtoa.c
…
dup2.c
…
dynamic_annotations.c
…
dynload_hpux.c
…
dynload_shlib.c
…
dynload_stub.c
…
dynload_win.c
…
emscripten_signal.c
…
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-128627: Use __builtin_wasm_test_function_pointer_signature for Emscripten trampoline (#137470)
2025-09-17 15:33:55 +01:00
errors.c
gh-143547: Fix PyErr_FormatUnraisable() fallback (#143557)
2026-01-09 13:16:22 +01:00
executor_cases.c.h
gh-139103: Improve namedtuple scaling in free-threaded build (gh-144332)
2026-02-06 09:43:05 -05:00
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
…
frozenmain.c
Use PyConfig_Get() in frozenmain.c (#137421)
2025-08-06 14:33:28 +02:00
future.c
…
gc_free_threading.c
gh-144054: no deferred refcount for untracked (gh-144081)
2026-01-20 10:01:09 -08:00
gc_gil.c
…
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-139103: Improve namedtuple scaling in free-threaded build (gh-144332)
2026-02-06 09:43:05 -05:00
getargs.c
Revert "gh-112068: C API: Add support of nullable arguments in PyArg_Parse (GH-121303)" (#136991)
2025-07-22 16:39:50 +03:00
getcompiler.c
gh-141341: Rename COMPILER macro to _Py_COMPILER on Windows (#141342)
2025-11-10 15:50:51 +01:00
getcopyright.c
…
getopt.c
…
getplatform.c
…
getversion.c
…
hamt.c
gh-142829: Fix use-after-free in Context.__eq__ via re-entrant ContextVar.set (#142905)
2026-01-09 17:57:34 +05:30
hashtable.c
…
import.c
gh-142776: Ensure fp file descriptor is closed on all code paths in import.c (GH-142777)
2025-12-19 10:14:52 -08:00
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
…
initconfig.c
gh-144319: Fix huge page safety in pymalloc arenas (#144331)
2026-01-30 18:18:56 +00:00
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
Remove redundant pycore_optimizer.h includes (#143184)
2025-12-26 11:11:11 +00:00
interpconfig.c
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intrinsics.c
gh-111489: Remove _PyTuple_FromArray() alias (#139973)
2025-10-11 22:58:14 +02:00
jit.c
GH-126910: add test for manual frame unwinding (#144137)
2026-01-27 13:17:40 +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-106287: Do not write objects after an unmarshalling error (GH-132715)
2026-01-14 11:25:46 +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
…
mystrtoul.c
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object_stack.c
…
opcode_targets.h
gh-142982: Specialize CALL_FUNCTION_EX (GH-143391)
2026-01-06 20:34:08 +00:00
optimizer_analysis.c
GH-144179: Use recorded values to make optimizer more robust (GH-144437)
2026-02-05 08:58:41 +00:00
optimizer_bytecodes.c
GH-144179: Use recorded values to make optimizer more robust (GH-144437)
2026-02-05 08:58:41 +00:00
optimizer_cases.c.h
GH-144179: Use recorded values to make optimizer more robust (GH-144437)
2026-02-05 08:58:41 +00:00
optimizer_symbols.c
GH-144179: Use recorded values to make optimizer more robust (GH-144437)
2026-02-05 08:58:41 +00:00
optimizer.c
GH-144179: Use recorded values to make optimizer more robust (GH-144437)
2026-02-05 08:58:41 +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
…
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-143228: Fix UAF in perf trampoline during finalization (#143233)
2025-12-28 13:50:23 +00:00
preconfig.c
GH-133711: Enable UTF-8 mode by default (PEP 686) (#133712)
2025-07-15 10:45:41 +01:00
pyarena.c
…
pyctype.c
…
pyfpe.c
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pyhash.c
gh-111389: replace deprecated occurrences of _PyHASH_* macros (#141236)
2025-11-09 15:14:08 +01:00
pylifecycle.c
gh-140824: Fix _Py_DumpExtensionModules() to ignore sub-modules (#144339)
2026-02-04 16:06:35 +01:00
pymath.c
…
pystate.c
gh-144068: fix JIT tracer memory leak when daemon thread exits (GH-144077)
2026-01-24 09:43:01 +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
…
pystrhex.c
gh-141370: Fix undefined behavior when using Py_ABS() (GH-141548)
2025-12-05 16:24:35 +02:00
pystrtod.c
gh-141004: soft-deprecate Py_INFINITY macro (#141033)
2025-11-12 13:44:49 +01:00
Python-ast.c
gh-143055: Implementation of PEP 798 (#143056)
2026-01-30 20:37:52 -08:00
Python-tokenize.c
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pythonrun.c
gh-141070: Rename PyUnstable_Object_Dump to PyObject_Dump (GH-142848)
2026-01-16 09:19:43 -05:00
pytime.c
gh-80620: Support negative timestamps on windows in time.gmtime, time.localtime, and datetime module (#143463)
2026-01-15 10:51:11 +01:00
qsbr.c
fix typos in crossinterp.c and qsbr.c (#142612)
2025-12-12 11:48:20 +05:30
README
…
record_functions.c.h
GH-144179: Use recorded values to make optimizer more robust (GH-144437)
2026-02-05 08:58:41 +00:00
remote_debug.h
gh-131591: Do not free page caches that weren't allocated (#143205)
2025-12-27 13:38:11 +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-144289: Remove ENABLE_SPECIALIZATION_FT (gh-144290)
2026-01-27 17:52:50 -05:00
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
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symtable.c
gh-77188: Add support for pickling private methods and nested classes (GH-21480)
2026-02-05 19:50:51 +00:00
sysmodule.c
gh-142571: Check for errors before calling each syscall in PyUnstable_CopyPerfMapFile() (#142460)
2025-12-11 21:18:52 +00:00
thread_nt.h
…
thread_pthread_stubs.h
…
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
…
traceback.c
gh-143108: Don't instrument some faulthandler related functions for TSan (#143450)
2026-01-05 22:13:29 +01:00
tracemalloc.c
gh-143057: avoid locking in tracemalloc C-APIs when it is not enabled (#143065)
2025-12-22 21:08:07 +05:30
uniqueid.c
…
vm-state.md
…

README 

Miscellaneous source files for the main Python shared library