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Abort in free-threading <code>validate_refcounts</code>: "tracked objects must have a reference count &gt; 0"

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

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.

#142975 In python/cpython;

· devdanzin opened on Dec 19, 2025

Segfault in <code>test_sampling_profiler</code>

topic-profiling

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

Status: Open.

#142973 In python/cpython;

· encukou opened on Dec 19, 2025

<code>pathlib.path.rglob</code> no longer returns sorted files starting at <code>3.12</code>

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

topic-pathlib

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

Status: Open.

#142972 In python/cpython;

· mflova opened on Dec 19, 2025

<code>ISNONTERMINAL</code> and <code>ISTERMINAL</code> in <code>token.py</code> accept float arguments in CPython but raise TypeError in PyPy

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

topic-parser

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

Status: Open.

#142968 In python/cpython;

· EgodPrime opened on Dec 19, 2025

ctypes.POINTER.set_type doesn't reset format

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

topic-ctypes

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

Status: Open.

#142966 In python/cpython;

· youknowone opened on Dec 19, 2025

Incorrect docs for <code>typing.Concatenate</code>

docsDocumentation in the Doc dirDocumentation in the Doc dir

topic-typing

Status: Open.

#142965 In python/cpython;

· A5rocks opened on Dec 19, 2025

Commit ff4959b6b0cf6da5d2f59260a9103b31c812b0ba broke some pdb backtraces

3.14bugs and security fixesbugs and security fixes

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

Status: Open.

#142964 In python/cpython;

· pablogsal opened on Dec 19, 2025

JIT: Segfault at <code>binary_op1</code>

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

topic-JIT

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

Status: Open.

#142961 In python/cpython;

· devdanzin opened on Dec 19, 2025

Incomplete 'function' entries in Types and Members table in inspect documentation

docsDocumentation in the Doc dirDocumentation in the Doc dir

Status: Open.

#142958 In python/cpython;

· Dutcho opened on Dec 18, 2025

TOML 1.1

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.

#142956 In python/cpython;

· AA-Turner opened on Dec 18, 2025

Cannot use format specifiers in argparse help

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

Status: Open.

#142950 In python/cpython;

· savannahostrowski opened on Dec 18, 2025

The new REPL floods the output when stdout is a broken pipe

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

topic-replRelated to the interactive shellRelated to the interactive shell

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

Status: Open.

#142948 In python/cpython;

· johnslavik opened on Dec 18, 2025