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pdb crashes with "ValueError: I/O operation on closed file." when exit() is called.

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

Status: Open.

#153820 In python/cpython;

· rai42 opened on Jul 16, 2026

missing attribute in handler shutdown

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

Status: Open.

#153812 In python/cpython;

· pblase opened on Jul 16, 2026

asyncio: TaskObj_dealloc leaves a refcount-0 Task GC-tracked, hanging or crashing the free-threaded build

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

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.

#153809 In python/cpython;

· devdanzin opened on Jul 16, 2026

Outdated term “condition list” in eval() documentation

docsDocumentation in the Doc dirDocumentation in the Doc dir

Status: Open.

#153808 In python/cpython;

· tenmyo opened on Jul 16, 2026

Tachyon Oracle

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

topic-profiling

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#153804 In python/cpython;

· maurycy opened on Jul 16, 2026

xmlrpc.client.loads raises IndexError on a malformed struct

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.

#153803 In python/cpython;

· tonghuaroot opened on Jul 16, 2026

Regarding irregular flag enumerations, aliases and canonical members

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.

#153802 In python/cpython;

· jbdyn opened on Jul 16, 2026

sqlite3: NULL pointer dereference in window aggregate xValue/xInverse callbacks when the window frame is empty

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

topic-sqlite3

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

Status: Open.

#153800 In python/cpython;

· petrvaganoff opened on Jul 16, 2026

stale MemoryError trips _Py_CheckSlotResult in reload_singlephase_extension

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.

#153797 In python/cpython;

· lpyu001 opened on Jul 16, 2026

urllib.robotparser.RobotFileParser.can_fetch crashes on a malformed URL

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.

#153795 In python/cpython;

· tonghuaroot opened on Jul 16, 2026

urllib.request.HTTPDigestAuthHandler crashes on a malformed WWW-Authenticate digest challenge

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.

#153792 In python/cpython;

· tonghuaroot opened on Jul 16, 2026

Generate AttributeError messages from their context

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

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#153785 In python/cpython;

· johnslavik opened on Jul 15, 2026