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Python is being put into an idle state by Windows and stops responding

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

Status: Open.

#145048�?In python/cpython;

· mikealvarrez opened on Feb 20, 2026

Ensuring good specialization while making progress in jitted code

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

Status: Open.

#145047�?In python/cpython;

· markshannon opened on Feb 20, 2026

Increase performance in unsafe_object_compare by not using Py_DECREF() for immortal res_obj

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

performancePerformance or resource usagePerformance or resource usage

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#145044�?In python/cpython;

· benediktjohannes opened on Feb 20, 2026

NULL dereference in _sqlite when connection is closed inside aggregate step callback

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

topic-sqlite3

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

Status: Open.

#145040�?In python/cpython;

· raminfp opened on Feb 20, 2026

Emscripten: Trampoline doesn't work with emcc 4.0.19 due to table/memory visibility

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

OS-emscripten

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

Status: Open.

#145037�?In python/cpython;

· hoodmane opened on Feb 20, 2026

Possible data race in <code>list.__sizeof__()</code> with free-threading build

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

topic-free-threading

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

Status: Open.

#145036�?In python/cpython;

· Naserume opened on Feb 20, 2026

Allow omitting <code>_pyrepl</code> module

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

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

topic-replRelated to the interactive shellRelated to the interactive shell

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#145035�?In python/cpython;

· zooba opened on Feb 20, 2026

Implement PEP 747: TypeForm

topic-typing

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#145033�?In python/cpython;

· JelleZijlstra opened on Feb 20, 2026

Docs: problem with page "8. Compound statements"

docsDocumentation in the Doc dirDocumentation in the Doc dir

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

Status: Open.

#145032�?In python/cpython;

· Dustin4444 opened on Feb 20, 2026

Suggest the possible module in "python -m module"

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.

#145031�?In python/cpython;

· Locked-chess-official opened on Feb 20, 2026

asyncio.streams.streamWriter used with a fifo on macOS closes after one write

OS-mac

topic-asyncio

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

Status: Open.

#145030�?In python/cpython;

· neek78 opened on Feb 20, 2026

test_hashlib blake2 tests fail on python configured --without-builtin-hashlib-hashes

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.

#145028�?In python/cpython;

· tucif opened on Feb 20, 2026