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cpython/Python
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Sergey Miryanov 32c264982e
gh-140061: Use _PyObject_IsUniquelyReferenced() to check if objects are uniquely referenced (gh-140062) 
The previous `Py_REFCNT(x) == 1` checks can have data races in the free
threaded build. `_PyObject_IsUniquelyReferenced(x)` is a more conservative
check that is safe in the free threaded build and is identical to
`Py_REFCNT(x) == 1` in the default GIL-enabled build.
2025-10-15 09:48:21 -04:00
..
clinic gh-111489: Remove _PyTuple_FromArray() alias (#139973) 2025-10-11 22:58:14 +02:00
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-139640: Fix swallowing syntax warnings in different modules (GH-139755) 2025-10-14 17:48:09 +03:00
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.c gh-132661: Implement PEP 750 (#132662) 2025-04-30 11:46:41 +02:00
ast_preprocess.c gh-137308: Replace a single docstring with pass in -OO mode (#137318) 2025-08-02 11:57:01 +00:00
ast_unparse.c gh-132661: Disallow Template/str concatenation after PEP 750 spec update (#135996) 2025-07-21 08:44:26 +02:00
bltinmodule.c gh-111489: Remove _PyTuple_FromArray() alias (#139973) 2025-10-11 22:58:14 +02:00
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-133171: Re-enable JUMP_BACKWARD to free-threading build (gh-137800) 2025-09-24 14:19:17 +09:00
ceval.c gh-111489: Remove _PyTuple_FromArray() alias (#139973) 2025-10-11 22:58:14 +02:00
ceval_gil.c gh-137514: Add a free-threading wrapper for mutexes (GH-137515) 2025-08-07 11:24:50 -04:00
ceval_macros.h gh-139109: Dynamic opcode targets (GH-139111) 2025-09-18 14:12:07 +01:00
codecs.c Python/codecs.c: Remove unused forward declaration (#139511) 2025-10-03 13:33:49 +02:00
codegen.c gh-138349: Fix crash when combining module-level annotation and listcomp (#138363) 2025-09-10 15:18:39 +02:00
compile.c gh-139640: Fix swallowing syntax warnings in different modules (GH-139755) 2025-10-14 17:48:09 +03:00
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-138192: Fix Context initialization so that all subinterpreters are assigned the MISSING value. (gh-138503) 2025-09-04 17:19:30 +00:00
critical_section.c gh-133296: Publicly expose critical section API that accepts PyMutex (gh-135899) 2025-07-21 17:25:43 -04:00
crossinterp.c gh-135855: Raise TypeError When Passing Non-dict Object to _interpreters.set___main___attrs (gh-135856) 2025-06-24 12:53:14 -06:00
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
dtoa.c gh-131238: Add explicit includes to pycore headers (#131257) 2025-03-17 12:32:43 +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.c gh-128627: Use __builtin_wasm_test_function_pointer_signature for Emscripten trampoline (#137470) 2025-09-17 15:33:55 +01:00
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
errors.c gh-139640: Fix swallowing syntax warnings in different modules (GH-139755) 2025-10-14 17:48:09 +03:00
executor_cases.c.h GH-138378: Move globals-to-consts pass into main optimizer pass (GH-138379) 2025-09-18 10:09:59 +01:00
fileutils.c gh-139353: Rename formatter_unicode.c to unicode_formatter.c (#139723) 2025-10-08 14:56:00 +02:00
flowgraph.c gh-138714: Don't assume next block has instructions when propagating line numbers (#138770) 2025-09-17 09:52:56 -07:00
frame.c gh-131173: Improve exception handling during take_ownership processing (#132620) 2025-04-17 13:38:34 -07:00
frozen.c GH-89435: os.path should not be a frozen module (#126924) 2024-11-22 18:50:30 +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.c GH-137562: Fix github-issue number for deallocated objects in cache bug (GH-137614) 2025-08-12 10:32:53 -07:00
gc_free_threading.c GH-135552: Make the GC clear weakrefs later (GH-136189) 2025-08-07 16:32:17 -07:00
gc_gil.c gh-100240: Use a consistent implementation for freelists (#121934) 2024-07-22 12:08:27 -04:00
generated_cases.c.h gh-133171: Re-enable JUMP_BACKWARD to free-threading build (gh-137800) 2025-09-24 14:19:17 +09:00
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 closes bpo-43278: remove unnecessary leading '\n' from COMPILER when build with GCC/Clang (GH-24606) 2021-02-25 20:24:21 -08:00
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-137440: Update comment in Python/hamt.c on importing for testing (GH-137441) 2025-08-07 09:50:49 -04:00
hashtable.c gh-111545: Add Py_HashPointer() function (#112096) 2023-12-06 15:09:22 +01:00
import.c gh-138310: Adds sys.audit event for import_module (#138311) 2025-09-19 06:21:42 -07:00
importdl.c Remove duplicate includes: Python/importdl.c (#132623) 2025-04-18 02:49:19 +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-136355: Deprecate -b and -bb CLI flags in 3.15 (#136363) 2025-09-14 20:00:03 +03:00
instruction_sequence.c GH-124715: Move trashcan mechanism into Py_Dealloc (GH-132280) 2025-04-30 11:37:53 +01:00
instrumentation.c gh-137400: Fix thread-safety issues when profiling all threads (gh-137518) 2025-08-13 14:15:12 -04:00
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-137959: Replace shim code in jitted code with a single trampoline function. (GH-137961) 2025-08-21 10:40:53 +01:00
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-137433: Fix deadlock with stop-the-world and daemon threads (gh-137735) 2025-09-16 09:21:58 +01:00
marshal.c gh-140061: Use _PyObject_IsUniquelyReferenced() to check if objects are uniquely referenced (gh-140062) 2025-10-15 09:48:21 -04:00
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-139109: Dynamic opcode targets (GH-139111) 2025-09-18 14:12:07 +01:00
optimizer.c Correct a simple NULL-check in optimizer.c's uop_item() (GH-140069) 2025-10-14 16:18:20 +01:00
optimizer_analysis.c GH-138378: Move globals-to-consts pass into main optimizer pass (GH-138379) 2025-09-18 10:09:59 +01:00
optimizer_bytecodes.c GH-138378: Move globals-to-consts pass into main optimizer pass (GH-138379) 2025-09-18 10:09:59 +01:00
optimizer_cases.c.h GH-138378: Move globals-to-consts pass into main optimizer pass (GH-138379) 2025-09-18 10:09:59 +01:00
optimizer_symbols.c gh-111489: Remove _PyTuple_FromArray() alias (#139973) 2025-10-11 22:58:14 +02:00
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-136459: Use platform-specific type in perf_jit_trampoline (GH-137031) 2025-07-23 10:20:42 +02:00
perf_trampoline.c gh-137291: Support perf profiler with an evaluation hook (#137292) 2025-08-07 14:54:12 -07:00
preconfig.c GH-133711: Enable UTF-8 mode by default (PEP 686) (#133712) 2025-07-15 10:45:41 +01:00
pyarena.c Chore: Fix typo in pyarena.c (#126527) 2024-11-07 16:37:41 +01:00
pyctype.c
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-122854: Add Py_HashBuffer() function (#122855) 2024-08-30 15:42:27 +00:00
pylifecycle.c gh-132042: Remove resolve_slotdups() to speedup class creation (#132156) 2025-10-03 11:58:00 +02:00
pymath.c bpo-45440: Remove pymath.c fallbacks (GH-28977) 2021-10-15 19:45:34 +02:00
pystate.c Revert "gh-140067: Fix memory leak in sub-interpreter creation (#140111)" (#140140) 2025-10-15 07:16:43 +05:30
pystrcmp.c gh-108767: Replace ctype.h functions with pyctype.h functions (#108772) 2023-09-01 18:36:53 +02:00
pystrhex.c gh-108765: pystrhex: Replace stdlib.h abs() with Py_ABS() (#108830) 2023-09-02 23:15:54 +02:00
pystrtod.c gh-120026: soft deprecate Py_HUGE_VAL macro (#120027) 2024-11-01 22:04:31 +00:00
Python-ast.c gh-133968: Add PyUnicodeWriter_WriteASCII() function (#133973) 2025-05-29 14:54:30 +00:00
Python-tokenize.c gh-111178: Fix function signatures for test_types (#131455) 2025-03-19 13:46:17 +00:00
pythonrun.c gh-137576: Fix for Basic REPL showing incorrect code in tracebacks with PYTHONSTARTUP (#137625) 2025-08-14 20:58:11 +03:00
pytime.c gh-67795: Accept any real numbers as timestamp and timeout (GH-139224) 2025-09-23 21:31:42 +03:00
qsbr.c GH-133136: Revise QSBR to reduce excess memory held (gh-135473) 2025-06-25 00:06:32 -07:00
README Issue #18093: Factor out the programs that embed the runtime 2014-07-25 21:52:14 +10:00
remote_debug.h gh-139275: Fix compilation of Modules/_remote_debugging_module.c when the system doesn't have process_vm_readv (#139307) 2025-09-25 00:16:44 +01:00
remote_debugging.c gh-134876: Add fallback for when process_vm_readv fails with ENOSYS (#134878) 2025-06-07 19:32:06 +01:00
specialize.c gh-139525: Don't specialize functions which have a modified vectorcall (#139524) 2025-10-03 09:58:32 -07:00
stackrefs.c GH-132554: Fix tier2 FOR_ITER implementation and optimizations (GH-135137) 2025-06-05 18:53:57 +01:00
stdlib_module_names.h gh-138122: Implement PEP 799 (#138142) 2025-08-27 17:52:50 +01:00
structmember.c gh-132685: fix thread safety of PyMember_GetOne with _Py_T_OBJECT (#132690) 2025-04-18 21:03:42 +05:30
suggestions.c GH-131238: Core header refactor (GH-131250) 2025-03-17 09:19:04 +00:00
symtable.c gh-121914: Change the names of the symbol tables for lambda and genexpr (GH-135288) 2025-07-13 21:09:42 +03:00
sysmodule.c gh-138886: Remove deprecated PySys_ResetWarnOptions C-API function (#138887) 2025-09-15 12:01:33 +03:00
thread.c gh-134745: Change PyThread_allocate_lock() implementation to PyMutex (#134747) 2025-05-30 10:15:47 +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.h gh-137884: Added threading.get_native_id() on Illumos/Solaris (GH-137927) 2025-08-20 17:10:44 +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
tier2_engine.md Docs: fix spelling of the word 'transferring' (#116641) 2024-03-13 23:53:32 +01:00
traceback.c gh-138661: fix data race in PyCode_Addr2Line (#138664) 2025-09-12 18:04:55 +05:30
tracemalloc.c Fix typo in tracemalloc.c (#139450) 2025-10-01 08:58:18 +02:00
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

README 

Miscellaneous source files for the main Python shared library