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Docs: random.seed() uses the absolute value of its integer argument

docsDocumentation in the Doc dirDocumentation in the Doc dir

Status: Open.

#142527 In python/cpython;

· jsalsman opened on Dec 10, 2025

os.walk docstring differs from its rst docs

docsDocumentation in the Doc dirDocumentation in the Doc dir

Status: Open.

#142526 In python/cpython;

· lheckemann opened on Dec 10, 2025

test_zoneinfo failure

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.

#142525 In python/cpython;

· smontanaro opened on Dec 10, 2025

Document guarantees provided when sharing built-in types across threads

3.13bugs and security fixesbugs and security fixes

3.14bugs and security fixesbugs and security fixes

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

docsDocumentation in the Doc dirDocumentation in the Doc dir

topic-free-threading

Status: Open.

#142518 In python/cpython;

· lysnikolaou opened on Dec 10, 2025

Observed memory leak in ssl library

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.

#142516 In python/cpython;

· HenriBlacksmith opened on Dec 10, 2025

Executor management code lacks proper invariants leading to bugs.

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)

topic-JIT

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

Status: Open.

#142513 In python/cpython;

· markshannon opened on Dec 10, 2025

Warn when <code>venv</code> target directory already contains an environment

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

topic-venvRelated to the venv moduleRelated to the venv module

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#142508 In python/cpython;

· abdallhfattah opened on Dec 10, 2025

defaultdict.__missing__ has data races

topic-free-threading

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

Status: Open.

#142495 In python/cpython;

· nascheme opened on Dec 9, 2025

test.test_asyncio.test_ssl often times out in Fedora ELN and EPEL 10.1

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

topic-asyncio

topic-SSL

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

Status: Open.

#142489 In python/cpython;

· hroncok opened on Dec 9, 2025

ASan memory leak in test_gc with --enable-experimental-jit (allocate_executor)

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

topic-JIT

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

Status: Open.

#142476 In python/cpython;

· ashm-dev opened on Dec 9, 2025

Incorrect docs for <code>-i</code> flag and <code>PYTHONSTARTUP</code>

docsDocumentation in the Doc dirDocumentation in the Doc dir

Status: Open.

#142474 In python/cpython;

· bdarnell opened on Dec 9, 2025

Merge <code>_PyStackRef</code> definitions for <code>Py_GIL_DISABLED</code> and default builds

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

type-refactorCode refactoring (with no changes in behavior)Code refactoring (with no changes in behavior)

Status: Open.

#142472 In python/cpython;

· colesbury opened on Dec 9, 2025