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cpython/Python
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Mark Shannon 0c01090ad9 GH-139951: Fix major GC performance regression (GH-140262) 
* Count number of actually tracked objects, instead of trackable objects. This ensures that untracking tuples has the desired effect of reducing GC overhead

* Do not track most untrackable tuples during creation. This prevents large numbers of small tuples causing execessive GCs.
2025-10-21 15:22:15 +01:00
..
clinic
gh-111489: Remove _PyTuple_FromArray() alias (#139973)
2025-10-11 22:58:14 +02:00
frozen_modules
…
_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
…
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-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
ast.c
gh-132661: Implement PEP 750 (#132662)
2025-04-30 11:46:41 +02:00
bltinmodule.c
gh-111489: Remove _PyTuple_FromArray() alias (#139973)
2025-10-11 22:58:14 +02:00
bootstrap_hash.c
…
brc.c
…
bytecodes.c
gh-133171: Re-enable JUMP_BACKWARD to free-threading build (gh-137800)
2025-09-24 14:19:17 +09:00
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
ceval.c
gh-111489: Remove _PyTuple_FromArray() alias (#139973)
2025-10-11 22:58:14 +02:00
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
…
config_common.h
…
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_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-140306: Fix memory leaks in cross-interpreter data handling (GH-140307)
2025-10-19 22:24:28 +03:00
dtoa.c
…
dup2.c
…
dynamic_annotations.c
…
dynload_hpux.c
…
dynload_shlib.c
gh-131238: Remove more includes from pycore_interp.h (#131480)
2025-03-19 23:01:32 +01:00
dynload_stub.c
…
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
…
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-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
…
frozenmain.c
Use PyConfig_Get() in frozenmain.c (#137421)
2025-08-06 14:33:28 +02:00
future.c
…
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
…
gc.c
GH-139951: Fix major GC performance regression (GH-140262)
2025-10-21 15:22:15 +01:00
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
…
getcopyright.c
…
getopt.c
GH-133336: Remove reserved `-J` flag for Jython (#133444)
2025-05-05 15:09:19 +00:00
getplatform.c
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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
…
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
…
intrinsics.c
gh-111489: Remove _PyTuple_FromArray() alias (#139973)
2025-10-11 22:58:14 +02:00
jit.c
gh-139269: Fix unaligned memory access in JIT code patching functions (GH-139271)
2025-10-19 00:20:04 +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
…
mystrtoul.c
…
object_stack.c
…
opcode_targets.h
gh-139109: Dynamic opcode targets (GH-139111)
2025-09-18 14:12:07 +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
optimizer.c
Correct a simple NULL-check in optimizer.c's uop_item() (GH-140069)
2025-10-14 16:18:20 +01:00
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
…
pyctype.c
…
pyfpe.c
…
pyhash.c
…
pylifecycle.c
gh-132042: Remove resolve_slotdups() to speedup class creation (#132156)
2025-10-03 11:58:00 +02:00
pymath.c
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pystate.c
gh-140301: Fix memory leak in subinterpreter PyConfig cleanup (#140303)
2025-10-20 09:29:23 +00:00
pystrcmp.c
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pystrhex.c
…
pystrtod.c
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Python-ast.c
gh-133968: Add PyUnicodeWriter_WriteASCII() function (#133973)
2025-05-29 14:54:30 +00:00
Python-tokenize.c
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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
…
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
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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_nt.h
gh-134745: Change PyThread_allocate_lock() implementation to PyMutex (#134747)
2025-05-30 10:15:47 +00:00
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: Change PyThread_allocate_lock() implementation to PyMutex (#134747)
2025-05-30 10:15:47 +00:00
tier2_engine.md
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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
…
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
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