6932c3ee6a
gh-145876: Do not mask KeyErrors raised during dictionary unpacking in call (GH-146472)
...
KeyErrors raised in keys() or __getitem__() during dictionary unpacking
in call (func(**mymapping)) are no longer masked by TypeError.
2026-03-29 11:58:52 +03:00
5bf3a31bc2
GH-146527: Add more data to GC statistics and add it to PyDebugOffsets ( #146532 )
2026-03-28 18:52:10 +00:00
5992238986
gh-146381: Constant-fold frozendict subscript lookups via REPLACE_OPCODE_IF_EVALUATES_PURE (gh-146490)
2026-03-28 09:48:53 +09:00
a5b9d60a69
gh-145059: Record lazy modules without submodules in sys.lazy_modules ( #146081 )
...
Record simple lazy modules as well
2026-03-27 14:37:11 -07:00
1384f025f5
gh-126910: Verify that JIT stencils preserve frame pointer (GH-146524)
2026-03-28 03:38:54 +08:00
b60b9261b5
GH-126910: avoid reading the FP for getting the SP (GH-146521)
2026-03-28 01:52:48 +08:00
a492d9ff74
gh-145866: Convert LIST_EXTEND to leave its inputs on the stack to be cleaned up by _POP_TOP be cleaned up by _POP_TOP (GH-146383)
2026-03-28 01:04:17 +08:00
c8ee196030
gh-146388: Add null check for sym_new(ctx) in make_bottom (GH-146389)
2026-03-27 22:50:29 +08:00
d4153a9f76
gh-146480: Override the exception in _PyErr_SetKeyError() ( #146486 )
...
If _PyErr_SetKeyError() is called with an exception set, it now
replaces the current exception with KeyError (as expected), instead
of setting a SystemError or failing with a fatal error (in debug
mode).
2026-03-27 11:20:19 +00:00
bfdaa3c565
gh-131798: JIT: split call method and call builtin opcodes into smaller uops ( #146463 )
2026-03-26 14:20:57 +00:00
0e543055b0
gh-145876: Do not mask AttributeErrors raised during dictionary unpacking (GH-145906)
...
AttributeErrors raised in keys() or __getitem__() during
dictionary unpacking ({**mymapping} or func(**mymapping)) are
no longer masked by TypeError.
2026-03-26 13:48:57 +00:00
1516c26399
gh-145866: Convert DICT_UPDATE to leave its inputs on the stack to be cleaned up by _POP_TOP (GH-146190)
2026-03-26 19:38:44 +08:00
fc1f6b176e
gh-GH-131798: optimize jit attribute loads on immutable types ( #146449 )
2026-03-26 10:12:10 +00:00
f5364ae750
gh-145866: Convert _CALL_INTRINSIC_2 to leave its inputs on the stack to be cleaned up by _POP_TOP (GH-146262)
2026-03-26 17:41:07 +08:00
9343518c6f
gh-146244: Fix initconfig.c SET_ITEM macro leaks dict on expression failure (GH-146246)
2026-03-25 19:09:56 +00:00
04bd54305a
gh-146386: fix missing va_end in _abiinfo_raise in modsupport.c ( #146387 )
2026-03-25 18:24:08 +05:30
d0e66ef1c0
gh-146369: Ensure PYTHON_LAZY_IMPORTS=none overrides __lazy_modules__ ( #146371 )
2026-03-25 11:08:45 +00:00
08f6b33bf3
gh-146355: Fix main_module ref leak in _PyRun_SimpleStringFlagsWithName ( #146356 )
2026-03-25 07:36:59 +01:00
1887a95f51
gh-128341: Use _Py_ABI_SLOT in stdlib modules ( #145770 )
...
Rename from _Py_INTERNAL_ABI_SLOT to _Py_ABI_SLOT
and define the macro using _PyABIInfo_DEFAULT.
Use the ABI slot in stdlib extension modules to enable running
a check of ABI version compatibility.
_tkinter, _tracemalloc and readline don't use the slots, hence they need
explicit handling.
Co-authored-by: Victor Stinner <vstinner@python.org >
2026-03-24 17:47:55 +00:00
951675c18a
gh-146306: JIT: Optimize float operations by mutating uniquely-referenced operands in place (GH-146307)
...
Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com >
2026-03-24 21:16:02 +08:00
6d73bc2267
gh-145866: Convert DICT_MERGE to leave its inputs on the stack to be cleaned up by _POP_TOP (GH-146329)
2026-03-24 18:31:41 +08:00
306c556fdb
gh-144319: obtain SeLockMemoryPrivilege on Windows ( #144928 )
2026-03-23 23:00:26 +00:00
7dc2f52a6f
gh-146197: Include a bit more information in sys._emscripten_info.runtime ( #146346 )
2026-03-23 21:57:23 +00:00
daa159f98b
gh-135871: Reload lock internal state while spinning in PyMutex_LockTimed (gh-146064)
...
Add atomic loads in the slow path of PyMutex to increase the number
of lock acquisitions per second that threads can make on a shared mutex.
2026-03-23 16:55:06 -04:00
e36f8db7e5
gh-143414: Implement unique reference tracking for JIT, optimize unpacking of such tuples (GH-144300)
...
Co-authored-by: Ken Jin <kenjin4096@gmail.com >
2026-03-23 00:57:23 +08:00
1ceb1fb284
gh-146261: Fix bug in _Py_uop_sym_set_func_version (GH-146291)
2026-03-23 00:11:37 +08:00
879c85f6e4
GH-145667: Merge GET_ITER and GET_YIELD_FROM_ITER (GH-146120)
...
* Merge GET_ITER and GET_YIELD_FROM_ITER. Modify SEND to make it a bit more like FOR_ITER
2026-03-21 10:48:13 +00:00
acfb4528de
gh-146099: Optimize _GUARD_CODE_VERSION+IP via function version symbols (GH-146101)
2026-03-20 12:26:41 +00:00
98977ca433
gh-131798: JIT: optimize _LOAD_COMMON_CONSTANT (GH-146104)
2026-03-20 05:55:22 +08:00
0d37e423d5
gh-145866: Convert SET_UPDATE to leave its inputs on the stack to be cleaned up by _POP_TOP (GH-145979)
2026-03-19 19:17:58 +08:00
e1e4852133
gh-146092: Handle _PyFrame_GetFrameObject() failures properly ( #146124 )
...
* Fix _PyFrame_GetLocals() and _PyFrame_GetLocals() error handling.
* _PyEval_ExceptionGroupMatch() now fails on _PyFrame_GetLocals()
error.
2026-03-18 18:27:52 +01:00
6fe91a9e80
gh-144888: JIT executor bloom filter wide-type optimization and function Inlining (GH-146114)
2026-03-19 00:58:14 +08:00
1e4ed93210
gh-146092: Fix error handling in _BINARY_OP_ADD_UNICODE opcode ( #146117 )
...
Fix also error handling in _BINARY_OP_ADD_FLOAT,
_BINARY_OP_SUBTRACT_FLOAT and _BINARY_OP_MULTIPLY_FLOAT opcodes.
PyStackRef_FromPyObjectSteal() must not be called with a NULL
pointer.
2026-03-18 17:23:05 +01:00
e0f7c1097e
gh-145779: Improve classmethod/staticmethod scaling in free-threaded build ( #145826 )
...
Add special cases for classmethod and staticmethod descriptors in
_PyObject_GetMethodStackRef() to avoid calling tp_descr_get, which
avoids reference count contention on the bound method and underlying
callable. This improves scaling when calling classmethods and
staticmethods from multiple threads.
Also refactor method_vectorcall in classobject.c into a new _PyObject_VectorcallPrepend() helper so that it can be used by
PyObject_VectorcallMethod as well.
2026-03-17 14:24:44 -04:00
966fc81531
gh-146058: Fix _GUARD_CODE_VERSION_* (GH-146060)
2026-03-18 01:19:44 +08:00
1efd9939c8
gh-131798: Optimize _ITER_CHECK_RANGE and _ITER_CHECK_LIST in the JIT (GH-144583)
2026-03-17 22:07:17 +08:00
3d0824aef2
gh-127958: Trace from RESUME in the JIT (GH-145905)
2026-03-17 00:18:59 +08:00
81ef1b7317
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
182aea2f57
gh-146018: Disable over-aggressive optimization for _GUARD_CODE_VERSION (GH-145923)
2026-03-16 13:52:56 +00:00
37121ef77e
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
83edae33a5
gh-145990: sort --help-env sections by environment variable name (GH-145997)
...
* sort --help-env alphabetically by name.
* add a sorting regression test in test_help_env.
2026-03-15 15:22:57 -07:00
b062f391cf
gh-145990: Sort python --help-xoptions by option name (GH-145991)
...
* Sort --help-xoptions alphabetically by name.
* add a sorting regression test in test_help_xoptions
2026-03-15 22:02:14 +00:00
4a71946b8f
gh-122575: gh-142349: fix sys.flags tuple size (it unintentionally increased) (GH-145988)
...
the lazy imports PEP initial implementation (3.15 alpha) inadvertently incremented the length of the sys.flags tuple. In a way that did not do anything useful or related to the lazy imports setting (it exposed sys.flags.gil in the tuple). This fixes that to hard code the length to the 3.13 & 3.14 released length of 18 and have our tests and code comments make it clear that we've since stopped making new sys.flags attributes available via sequence index.
2026-03-15 20:30:01 +00:00
798070d8ca
gh-134584: Eliminate redundant refcounting in JIT for MATCH_CLASS (GH-144821)
2026-03-14 12:00:18 +00:00
59d97683c1
gh-145792: Fix incorrect alloca allocation size in traceback.c ( #145814 )
2026-03-13 13:15:26 +01:00
453562a467
GH-145692: Convert DEOPT_IFs to EXIT_IFs (GH-145751)
...
* Convert DEOPT_IFs to EXIT_IFs for guards. Keep DEOPT_IF for intentional drops to the interpreter.
* Modify BINARY_OP_SUBSCR_LIST_INT and STORE_SUBSCR_LIST_INT to handle negative indices, to keep EXIT_IFs and DEOPT_IFs in different uops
2026-03-12 10:57:59 +00:00
d19de375a2
GH-145247: Use _PyTuple_FromPair in Parser and Python ( #145842 )
...
Use _PyTuple_FromPair in Parser and Python
2026-03-11 21:08:18 +00:00
f062014d38
gh-144540: Add _MAKE_HEAP_SAFE uop to eliminate unnecessary refcount operations in RETURN_VALUE and YIELD_VALUE (GH-144414)
2026-03-11 20:24:19 +00:00
706fd4ec08
gh-142183: Cache one datachunk per tstate to prevent alloc/dealloc thrashing ( #145789 )
...
Cache one datachunk per tstate to prevent alloc/dealloc thrashing when repeatedly hitting the same call depth at exactly the wrong boundary.
---------
Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
2026-03-11 15:46:16 +01:00
dae85c4d93
gh-145633: Remove support for ancient ARM platforms with mixed-endian doubles ( #145634 )
...
* Drop DOUBLE_IS_ARM_MIXED_ENDIAN_IEEE754 macro.
* Use DOUBLE_IS_BIG/LITTLE_ENDIAN_IEEE754 to detect endianness of
float/doubles.
* Drop "unknown_format" code path in PyFloat_Pack/Unpack*().
Co-authored-by: Victor Stinner <vstinner@python.org >
2026-03-11 12:39:24 +01:00
Serhiy Storchaka