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Issues list
Issue with(Objects, Python, Grammar, and Parser dirs) topic-C-API type-bugAn unexpected behavior, bug, or error
PyObject_DelAttr[String] in stable ABI builds targeting older CPython versions interpreter-core #134989 openedJun 1, 2025 bywjakob
Crash when calling(Objects, Python, Grammar, and Parser dirs) topic-free-threading type-crashA hard crash of the interpreter, possibly with a core dump
textiowrapper_iternext and writing to a text file simultaneously in ft build interpreter-core #134908 openedMay 30, 2025 byduaneg
Improve metaclass conflict error message with clearer terminology and contextual information interpreter-core(Objects, Python, Grammar, and Parser dirs) type-featureA feature request or enhancement
#134902 openedMay 29, 2025 byAsgerJon
Python 3.14+:bugs and security fixes 3.15new features, bugs and security fixes interpreter-core(Objects, Python, Grammar, and Parser dirs) type-crashA hard crash of the interpreter, possibly with a core dump
python: Objects/unicodeobject.c:10387: _PyUnicode_JoinArray: Assertionres_data == PyUnicode_1BYTE_DATA(res) + kind * PyUnicode_GET_LENGTH(res)' failed.` in sqlglot 3.14 #134889 openedMay 29, 2025 bymgorny
python -m pdb -p fails when CONFIG_CROSS_MEMORY_ATTACH not set in kernel config 3.14bugs and security fixes 3.15new features, bugs and security fixes interpreter-core(Objects, Python, Grammar, and Parser dirs) type-bugAn unexpected behavior, bug, or error
#134876 openedMay 29, 2025 bycakemanny
3.14.0b2 fails to build with strictly C11 compliant compiler 3.14bugs and security fixes 3.15new features, bugs and security fixes interpreter-core(Objects, Python, Grammar, and Parser dirs) type-bugAn unexpected behavior, bug, or error
#134875 openedMay 29, 2025 byjmroot
Add sys.set_object_tags() and sys.get_object_tags() APIs for debugging and experimental Use interpreter-core(Objects, Python, Grammar, and Parser dirs) type-featureA feature request or enhancement
#134819 openedMay 28, 2025 bycorona10
threading primitives are subject to reference count contention interpreter-core #134761 openedMay 26, 2025 byZeroIntensity
_TIER2_RESUME_CHECK is costly in the JIT interpreter-core(Objects, Python, Grammar, and Parser dirs) performancePerformance or resource usage topic-JIT type-featureA feature request or enhancement
#134728 openedMay 26, 2025 byFidget-Spinner
Support regular expressions in(Objects, Python, Grammar, and Parser dirs) type-featureA feature request or enhancement
-W andPYTHONWARNINGS interpreter-core #134716 openedMay 26, 2025 bygaryaviv
Remove deprecatednew features, bugs and security fixes interpreter-core(Objects, Python, Grammar, and Parser dirs) type-featureA feature request or enhancement
co_lnotab fromCodeType 3.15 #134690 openedMay 26, 2025 bysobolevn
Add Non-Refcounted Operations for common types using _PyStackRef interpreter-core(Objects, Python, Grammar, and Parser dirs) performancePerformance or resource usage topic-free-threading topic-JIT type-featureA feature request or enhancement
#134689 openedMay 26, 2025 byFidget-Spinner
Builtin input does not always correctly handle errors frombugs and security fixes 3.14bugs and security fixes 3.15new features, bugs and security fixes interpreter-core(Objects, Python, Grammar, and Parser dirs) type-crashA hard crash of the interpreter, possibly with a core dump
PyOS_Readline 3.13 #134644 openedMay 25, 2025 byduaneg
Eliminate redundant refcounting in the JIT interpreter-core(Objects, Python, Grammar, and Parser dirs) performancePerformance or resource usage topic-JIT type-featureA feature request or enhancement
#134584 openedMay 23, 2025 byFidget-Spinner
Improve import error when extension module is an incompatible build interpreter-core(Objects, Python, Grammar, and Parser dirs) topic-C-API topic-importlib type-featureA feature request or enhancement
#134493 openedMay 22, 2025 byseberg
Python/instrumentation.c: ensure non-NULLPyLong_FromLong results when possible easy interpreter-core #134411 openedMay 21, 2025 bysmurav
~bool deprecation not reported for literals 3.13 #134280 openedMay 19, 2025 bydecorator-factory
Support mixed sync and async context managers in(Objects, Python, Grammar, and Parser dirs) type-featureA feature request or enhancement
async with statements interpreter-core #134270 openedMay 19, 2025 byZac-HD
sys.setprofile does not dipatch C Extension dunder methods interpreter-core #134243 openedMay 19, 2025 byVipul-Cariappa
Add colorization of exceptions in default(Objects, Python, Grammar, and Parser dirs) type-featureA feature request or enhancement
sys.unraisablehook interpreter-core #134170 openedMay 18, 2025 bygry321
Remove support for(Objects, Python, Grammar, and Parser dirs) stdlibPython modules in the Lib dir topic-importlib type-featureA feature request or enhancement
__cached__ and__package__ if missing corresponding__spec__ attributes interpreter-core #134088 openedMay 16, 2025 bypicnixz
Out-of-bounds read in integrated mimalloc (fixed upstream) 3.13bugs and security fixes 3.14bugs and security fixes 3.15new features, bugs and security fixes interpreter-core(Objects, Python, Grammar, and Parser dirs) type-bugAn unexpected behavior, bug, or error
#134070 openedMay 15, 2025 byfuhsnn
use stackrefs in(Objects, Python, Grammar, and Parser dirs) performancePerformance or resource usage topic-free-threading type-featureA feature request or enhancement
_PyObject_GetMethod and calling APIs interpreter-core #134043 openedMay 15, 2025 bykumaraditya303
Improve(Objects, Python, Grammar, and Parser dirs) topic-parser type-featureA feature request or enhancement
raise from ValueError() error message interpreter-core #134036 openedMay 15, 2025 bysobolevn
Expose(Objects, Python, Grammar, and Parser dirs) topic-C-API topic-free-threading type-featureA feature request or enhancement
PyMutex_IsLocked in the public C API interpreter-core #134009 openedMay 14, 2025 byhawkinsp
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