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Cryptic error message about ENV CHANGED

3.13bugs and security fixesbugs and security fixes

3.14new features, bugs and security fixesnew features, bugs and security fixes

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

Status: Open.

#132581 In python/cpython;

· serhiy-storchaka opened on Apr 16, 2025

Introduction of Thread._handle: _thread._ThreadHandle in Python3.13 has broken an unknown number of packages

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

Status: Open.

#132578 In python/cpython;

· initialed85 opened on Apr 16, 2025

pathlib.Path.move() consumes too much disk space

performancePerformance or resource usagePerformance or resource usage

topic-pathlib

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

Status: Open.

#132566 In python/cpython;

· barneygale opened on Apr 15, 2025

The new multiprocessing.[R]Lock.locked() method fails.

topic-multiprocessing

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

Status: Open.

#132561 In python/cpython;

· YvesDup opened on Apr 15, 2025

Dataclasses erroring when descriptor has mutable default

topic-dataclasses

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

Status: Open.

#132559 In python/cpython;

· thejcannon opened on Apr 15, 2025

Argparse: Unable to combine choices with type

stdlibPython modules in the Lib dirPython modules in the Lib dir

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

Status: Open.

#132558 In python/cpython;

· hansthen opened on Apr 15, 2025

Making a capture group inside a non capturing group causes the non-capturing group to capture.

topic-regex

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

Status: Open.

#132556 In python/cpython;

· AdrienDerobert opened on Apr 15, 2025

Use tagged ints for faster iteration

Status: Open.

#132554 In python/cpython;

· markshannon opened on Apr 15, 2025

Mysterious /home/buildbot/.debug/ directory is filling the disk of AArch64 Fedora buildbots

Status: Open.

#132553 In python/cpython;

· vstinner opened on Apr 15, 2025

Segfault/abort from calling BytesIO unshare_buffer in threads on a free-threaded build

3.13bugs and security fixesbugs and security fixes

3.14new features, bugs and security fixesnew features, bugs and security fixes

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

topic-free-threading

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

Status: Open.

#132551 In python/cpython;

· devdanzin opened on Apr 15, 2025

Weird enum.Enum signature?

stdlibPython modules in the Lib dirPython modules in the Lib dir

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#132543 In python/cpython;

· ego-thales opened on Apr 15, 2025

threading.Thread.native_id for forking thread wrong after fork

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

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

Status: Open.

#132542 In python/cpython;

· Oberon00 opened on Apr 15, 2025