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sum() mishandles a float subclass when accumulating into a complex total

3.14bugs and security fixesbugs and security fixes

3.15pre-release feature fixes, bugs and security fixespre-release feature fixes, bugs and security fixes

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)

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

Status: Open.

#151060 In python/cpython;

· eendebakpt opened on Jun 7, 2026

Use PyObject_CallMethodOneArg in datetime call_tzinfo_method

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#151059 In python/cpython;

· eendebakpt opened on Jun 7, 2026

Docs: problem with page "unittest — Unit testing framework"

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.

#151056 In python/cpython;

· clovett02 opened on Jun 7, 2026

ipaddress: 2001:1::3/128 (RFC 9665) missing from IPv6 _private_networks_exceptions, is_global returns False

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.

#151049 In python/cpython;

· tonghuaroot opened on Jun 7, 2026

Use-after-free in _Unpickler_ReadIntoFromFile: temporary memoryview passed to readinto() can outlive its buffer

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

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

Status: Open.

#151046 In python/cpython;

· tonghuaroot opened on Jun 7, 2026

venv: Activation in fish inside msys2 (or similar) breaks PATH

OS-windows

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

topic-venvRelated to the venv moduleRelated to the venv module

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

Status: Open.

#151042 In python/cpython;

· LuNoX opened on Jun 7, 2026

3.15.0b2, Fedora 44, riscv64: failing test: test_c_stack_unwind

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.

#151040 In python/cpython;

· davidlt opened on Jun 7, 2026

Crash: NULL deref in _datetime when a static type outlives its module

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

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

Status: Open.

#151039 In python/cpython;

· ashm-dev opened on Jun 7, 2026

sys.remote_exec() is unable to find writable memory when libpython got deleted/replaced on disk

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.

#151029 In python/cpython;

· ambv opened on Jun 6, 2026

_remote_debugging: raising Invalid bytes length on codeobjects with linetable > 4096

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

topic-profiling

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

Status: Open.

#151022 In python/cpython;

· maurycy opened on Jun 6, 2026

3.15.0b2 test failures on FreeBSD 15.1-RC2 arm.armv7

OS-freebsd

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.

#151019 In python/cpython;

· mandree opened on Jun 6, 2026

3.15.0b2 test failures on FreeBSD i386 (in poudriere, on ZFS file system): test.test_os.test_os test_complex test_ctypes (test_shutil reported in a separate issue)

OS-freebsd

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.

#151007 In python/cpython;

· mandree opened on Jun 6, 2026