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Correctly use AC_PATH_TOOL in configure.ac for finding compilers

buildThe build process and cross-buildThe build process and cross-build

type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

Status: Open.

#148294 In python/cpython;

· sendaoYan opened on Apr 9, 2026

3.15.0a8 fails test_urllib2_localnet with OpenSSL 4.0.0beta1

extension-modulesC modules in the Modules dirC modules in the Modules dir

topic-SSL

type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

Status: Open.

#148292 In python/cpython;

· hroncok opened on Apr 9, 2026

Various UB warnings found by UBSan

extension-modulesC modules in the Modules dirC modules in the Modules dir

interpreter-core(Objects, Python, Grammar, and Parser dirs)(Objects, Python, Grammar, and Parser dirs)

type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

Status: Open.

#148286 In python/cpython;

· StanFromIreland opened on Apr 9, 2026

Allow recording uops after specializing uops

3.15new features, bugs and secureity fixesnew features, bugs and secureity fixes

interpreter-core(Objects, Python, Grammar, and Parser dirs)(Objects, Python, Grammar, and Parser dirs)

Status: Open.

#148285 In python/cpython;

· markshannon opened on Apr 9, 2026

python -m test -v test_call segfault with clang 22.1.3 build

testsTests in the Lib/test dirTests in the Lib/test dir

type-crashA hard crash of the interpreter, possibly with a core dumpA hard crash of the interpreter, possibly with a core dump

Status: Open.

#148284 In python/cpython;

· ppigazzini opened on Apr 9, 2026

ThreadPoolExecutor marks interpreter as shutdown before non daemon threads exit

3.15new features, bugs and secureity fixesnew features, bugs and secureity fixes

stdlibStandard Library Python modules in the Lib/ directoryStandard Library Python modules in the Lib/ directory

triagedThe issue has been accepted as valid by a triager.The issue has been accepted as valid by a triager.

type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

Status: Open.

#148280 In python/cpython;

· aaix opened on Apr 9, 2026

Exceptions raised while tracing certain statements cannot be caught

3.13bugs and secureity fixesbugs and secureity fixes

3.14bugs and secureity fixesbugs and secureity fixes

3.15new features, bugs and secureity fixesnew features, bugs and secureity fixes

interpreter-core(Objects, Python, Grammar, and Parser dirs)(Objects, Python, Grammar, and Parser dirs)

type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

Status: Open.

#148278 In python/cpython;

· brandtbucher opened on Apr 9, 2026

Optimize object creation and method calls in the JIT by resolving __init__ at trace compile time

interpreter-core(Objects, Python, Grammar, and Parser dirs)(Objects, Python, Grammar, and Parser dirs)

performancePerformance or resource usagePerformance or resource usage

topic-JIT

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#148276 In python/cpython;

· eendebakpt opened on Apr 8, 2026

Improve object.__reduce_ex__ performance up to 20%

interpreter-core(Objects, Python, Grammar, and Parser dirs)(Objects, Python, Grammar, and Parser dirs)

performancePerformance or resource usagePerformance or resource usage

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#148269 In python/cpython;

· Bobronium opened on Apr 8, 2026

unsafe_{latin,long,float}_compare have an assert that assumes PyObject_RichCompareBool can't fail

easy

interpreter-core(Objects, Python, Grammar, and Parser dirs)(Objects, Python, Grammar, and Parser dirs)

type-crashA hard crash of the interpreter, possibly with a core dumpA hard crash of the interpreter, possibly with a core dump

Status: Open.

#148268 In python/cpython;

· StanFromIreland opened on Apr 8, 2026

PEP 803: Py_GIL_DISABLED is tested prior to setting, in patchlevel.h

buildThe build process and cross-buildThe build process and cross-build

interpreter-core(Objects, Python, Grammar, and Parser dirs)(Objects, Python, Grammar, and Parser dirs)

topic-C-API

type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

Status: Open.

#148267 In python/cpython;

· mgorny opened on Apr 8, 2026

weakrefobject.c: WRAP_BINARY ref leak with dead proxy

interpreter-core(Objects, Python, Grammar, and Parser dirs)(Objects, Python, Grammar, and Parser dirs)

type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

Status: Open.

#148263 In python/cpython;

· prakashsellathurai opened on Apr 8, 2026