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TypeError when trying to deepcopy argparse.ArgumentParser()

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.

#149614 In python/cpython;

· kmvanbrunt opened on May 9, 2026

Path.write_text() and Path.write_bytes() don't explain their return value

docsDocumentation in the Doc dirDocumentation in the Doc dir

easy

Status: Open.

#149611 In python/cpython;

· nedbat opened on May 9, 2026

Remove deprecated abc.abstractclassmethod, etc for 3.16

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.

#149609 In python/cpython;

· aiwonderland opened on May 9, 2026

locale.strxfrm() can fail on FreeBSD

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

OS-unsupported

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

Status: Open.

#149603 In python/cpython;

· inof opened on May 9, 2026

Remove deprecated async.iscoroutinefunction for 3.16

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

topic-asyncio

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#149600 In python/cpython;

· sobolevn opened on May 9, 2026

Remove deprecated strm argument handling from logging

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.

#149598 In python/cpython;

· sobolevn opened on May 9, 2026

Remove deprecated sys._enablelegacywindowsfsencoding

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.

#149595 In python/cpython;

· StanFromIreland opened on May 9, 2026

Creating multiple instances of faulthandler module causes unbalanced refcount on fatal_error.file

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

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

Status: Open.

#149590 In python/cpython;

· stestagg opened on May 9, 2026

_remote_debugging: reading whole pages over and over

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

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

topic-profiling

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

Status: Open.

#149584 In python/cpython;

· maurycy opened on May 8, 2026

tarfile: Failed opening empty PAX TAR with global headers

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.

#149578 In python/cpython;

· spbnick opened on May 8, 2026

Document that is_typeddict, is_dataclass etc. return False for generic specializations

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

topic-typing

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

Status: Open.

#149574 In python/cpython;

· semohr opened on May 8, 2026

Element.itertext() works differently in C and Python implementations

3.13bugs and security fixesbugs and security fixes

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

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

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

topic-XML

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

Status: Open.

#149571 In python/cpython;

· serhiy-storchaka opened on May 8, 2026