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annotationlib: Improve test coverage

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

topic-typing

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#141174 In python/cpython;

· dr-carlos opened on Nov 6, 2025

test_urllib2 and test_urllibnet failed on Linux From Scratch

OS-unsupported

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.

#141109 In python/cpython;

· ChaseKnowlden opened on Nov 6, 2025

test_urllib2net FTP tests fail on some buildbot workers

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.

#140748 In python/cpython;

· encukou opened on Oct 29, 2025

Update <code>str*time</code> to C11 format codes

docsDocumentation in the Doc dirDocumentation in the Doc dir

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

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

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#140715 In python/cpython;

· StanFromIreland opened on Oct 28, 2025

test_socketserver.test_UnixDatagramServer() times out on GHA iOS CI

OS-ios

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.

#140702 In python/cpython;

· vstinner opened on Oct 28, 2025

LeakSanitizer detects memory leaks in test_import with _testsinglephase module in subinterpreter

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

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

topic-subinterpreters

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

Status: Open.

#140404 In python/cpython;

· ashm-dev opened on Oct 21, 2025

Tests asserting "slow_fibonacci" in <code>test_profiling</code> flaky fail on i686/s390x builds in Fedora Linux

OS-linux

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.

#140381 In python/cpython;

· befeleme opened on Oct 20, 2025

test_sysconfig test_parse_makefile_renamed_vars fails when $CFLAGS is set

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

topic-sysconfig

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

Status: Open.

#140210 In python/cpython;

· hroncok opened on Oct 16, 2025

TSAN reports multiple data races, SEGV errors, and thread leaks when running the full test suite

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

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#140209 In python/cpython;

· ashm-dev opened on Oct 16, 2025

Remove <code>test.test_json.test_tool.TestTool.test_colors</code> from PGO

performancePerformance or resource usagePerformance or resource usage

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.

#140172 In python/cpython;

· zooba opened on Oct 15, 2025

Many path failures on Windows builds on Azure 32-bit CI

OS-windows

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.

#140136 In python/cpython;

· zooba opened on Oct 14, 2025

<code>test_json</code> case <code>test_highly_nested_objects_decoding</code> fails under PGO on Clang 20

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

OS-mac

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.

#140125 In python/cpython;

· zanieb opened on Oct 14, 2025