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<code>{}.pop([])</code> raises <code>KeyError</code> not <code>TypeError</code> - only on empty dict

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

Status: Open.

#142396 In python/cpython;

· samuelcolvin opened on Dec 8, 2025

Update <code>ExceptionGroup</code>s to use a tuple of errors where possible

docsDocumentation in the Doc dirDocumentation in the Doc dir

Status: Open.

#142392 In python/cpython;

· dr-carlos opened on Dec 7, 2025

Add support for colorizing code examples in argparse description/epilog

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

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

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#142389 In python/cpython;

· savannahostrowski opened on Dec 7, 2025

Android buildbot failures after updating to API level 35

infraCI, GitHub Actions, buildbots, Dependabot, etc.CI, GitHub Actions, buildbots, Dependabot, etc.

OS-android

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

Status: Open.

#142387 In python/cpython;

· mhsmith opened on Dec 7, 2025

TCGETA, TCSETA, TCSETAF, TCSETAW termios ioctl no longer usable on all architectures with glibc 2.42

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

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

OS-linux

OS-unsupported

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

Status: Open.

#142379 In python/cpython;

· tpetazzoni opened on Dec 7, 2025

Use <code>PyObject_GetTypeData</code> without the GIL/attached thread state

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

topic-C-API

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#142376 In python/cpython;

· da-woods opened on Dec 7, 2025

Tachyon sampling profiler overcounts recursive function cumulative time

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

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

topic-profiling

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

Status: Open.

#142374 In python/cpython;

· jbosboom opened on Dec 7, 2025

Should <code>PyCF_ALLOW_INCOMPLETE_INPUT</code> remain undocumented?

docsDocumentation in the Doc dirDocumentation in the Doc dir

topic-C-API

Status: Open.

#142372 In python/cpython;

· johnslavik opened on Dec 7, 2025

Readline-reliant tests are not isolated from personal init files

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

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.

#142353 In python/cpython;

· johnslavik opened on Dec 6, 2025

asyncio: start_tls() loses buffered data from StreamReader

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

topic-asyncio

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

Status: Open.

#142352 In python/cpython;

· kasimov-maxim opened on Dec 6, 2025

Implement PEP 810

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

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#142349 In python/cpython;

· pablogsal opened on Dec 6, 2025

Support of mutually exclusive groups in the argparse help is very limited

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

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

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#142346 In python/cpython;

· serhiy-storchaka opened on Dec 6, 2025