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type('', (), {})__weakref__.__doc__ is inaccurate

docsDocumentation in the Doc dirDocumentation in the Doc dir

Status: Open.

#150553 In python/cpython;

· jonathandung opened on May 28, 2026

codeobject.c: co_tlbc NULL deref + replacement_locations leak

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

Status: Open.

#150546 In python/cpython;

· lpyu001 opened on May 28, 2026

test.test_pdb.PdbTestColorize.test_gen_colors fails when pyrepl is unavailable at runtime

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

Status: Open.

#150544 In python/cpython;

· sendaoYan opened on May 28, 2026

Add support for enabling Windows Protected Process Light (PPL) on the current process

OS-windows

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#150543 In python/cpython;

· userwnt opened on May 28, 2026

Use a larger (or even configurable) buffer size in filecmp for performance

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

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.

#150539 In python/cpython;

· zahlman opened on May 27, 2026

Importing readline leaks memory on macOS

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

OS-mac

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

Status: Open.

#150536 In python/cpython;

· KowalskiThomas opened on May 27, 2026

Add 'half turns' functions (cospi et al) to math module following C23 & IEEE754-2019

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

triagedThe issue has been accepted as valid by a triager.The issue has been accepted as valid by a triager.

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#150534 In python/cpython;

· jepler opened on May 27, 2026

Consider reverting the autoconf 2.72 version bump requirement as it breaks compatibility with distros

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

OS-unsupported

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

Status: Open.

#150532 In python/cpython;

· stratakis opened on May 27, 2026

python 3.14+ Incorrect note in binascii.a2b_hex documentation

docsDocumentation in the Doc dirDocumentation in the Doc dir

Status: Open.

#150524 In python/cpython;

· Joshix-1 opened on May 27, 2026

http.cookiejar.domain_match() matches an interior substring instead of a suffix

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.

#150522 In python/cpython;

· metsw24-max opened on May 27, 2026

Streamline spilling around calls in the code generator

3.16new features, bugs and security fixesnew features, bugs and security fixes

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.

#150516 In python/cpython;

· markshannon opened on May 27, 2026

Error in inspect.getattr_static usage snippet to resolve built-in C descriptors and hackiness in how it obtains these types

docsDocumentation in the Doc dirDocumentation in the Doc dir

Status: Open.

#150506 In python/cpython;

· jonathandung opened on May 27, 2026