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test_itertools: non-ASCII temp dir name corrupted under Windows mbcs codepage and not removed, causing FileNotFoundError in subsequent tests

Status: Open.

#146202 In python/cpython;

· Aasyaco opened on Mar 20, 2026

code_richcompare swallows errors

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.

#146199 In python/cpython;

· bkap123 opened on Mar 20, 2026

Add CI job for Emscripten

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

OS-emscripten

Status: Open.

#146197 In python/cpython;

· hoodmane opened on Mar 20, 2026

Undefined Behavior in _PyUnicodeWriter_WriteASCIIString: NULL pointer passed to memcpy when len is 0

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.

#146196 In python/cpython;

· ashm-dev opened on Mar 20, 2026

Asyncio does not handle nested KeyboardInterrupt correctly

topic-asyncio

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

Status: Open.

#146194 In python/cpython;

· user202729 opened on Mar 20, 2026

C accelerator for Base32 character encoding

performancePerformance or resource usagePerformance or resource usage

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.

#146192 In python/cpython;

· kangtastic opened on Mar 20, 2026

asyncio.subprocess spawning can block

topic-asyncio

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

Status: Open.

#146181 In python/cpython;

· charles-dyfis-net opened on Mar 19, 2026

Soft-deprecate outdated macros

docsDocumentation in the Doc dirDocumentation in the Doc dir

topic-C-API

Status: Open.

#146175 In python/cpython;

· encukou opened on Mar 19, 2026

Nested AttributeError improved messages don't work with properties

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.

#146171 In python/cpython;

· rodrigogiraoserrao opened on Mar 19, 2026

Segfault/UB from expat when re-entering the XML Parser

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

topic-XML

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

Status: Open.

#146169 In python/cpython;

· stestagg opened on Mar 19, 2026

Use frozendict in Lib/curses/has_key.py

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.

#146153 In python/cpython;

· jonathandung opened on Mar 19, 2026

_json: stale markers entries on error paths in encoder_listencode_obj

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.

#146152 In python/cpython;

· raminfp opened on Mar 19, 2026