Search results

SEGV in _PyObject_ClearFreeLists after exception in subinterpreter

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

Status: Open.

#148929 In python/cpython;

· wiomoc opened on Apr 23, 2026

Expose signal-safe way to get a structured stacktrace

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#148925 In python/cpython;

· danielsn opened on Apr 23, 2026

test_urllib2.HandlerTests.test_redirect_no_path fails when proxy environment variables are set

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

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

Status: Open.

#148919 In python/cpython;

· sendaoYan opened on Apr 23, 2026

pickle protocol 5: writable in-band PickleBuffer with empty tobytes() can memoize b'' via BYTEARRAY8, so later bytes references unpickle as bytearray

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

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

Status: Open.

#148914 In python/cpython;

· madkrouger opened on Apr 23, 2026

Exception ignored in: <function _removeHandlerRef at 0x7b8d7163a7a0>

pendingThe issue will be closed if no feedback is providedThe issue will be closed if no feedback is provided

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

Status: Open.

#148910 In python/cpython;

· khteh opened on Apr 23, 2026

A Dead URL in mro.rst doc

docsDocumentation in the Doc dirDocumentation in the Doc dir

Status: Open.

#148909 In python/cpython;

· ByteFlowing1337 opened on Apr 23, 2026

poor scaling of descriptors in free-threading

performancePerformance or resource usagePerformance or resource usage

topic-free-threading

Status: Open.

#148906 In python/cpython;

· kumaraditya303 opened on Apr 23, 2026

Crash in HAMT during garbage collection

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.

#148891 In python/cpython;

· KowalskiThomas opened on Apr 22, 2026

Remove hard-coded python version in Tools/pixi-packages #148858

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

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#148887 In python/cpython;

· isuruf opened on Apr 22, 2026

Docs: grammar in Counter dictionary methods note is slightly unclear

docsDocumentation in the Doc dirDocumentation in the Doc dir

Status: Open.

#148883 In python/cpython;

· SanJJ1 opened on Apr 22, 2026

with lock: can skip __exit__ when a signal handler raises right after __enter__

3.14bugs and security fixesbugs and security fixes

3.15new features, bugs and security fixesnew features, bugs and security 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.

#148874 In python/cpython;

· colesbury opened on Apr 22, 2026

Extend and improve LOAD_COMMON_CONSTANT

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.

#148871 In python/cpython;

· markshannon opened on Apr 22, 2026