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certain f/t-string expressions not copied correctly to debug str or interpolations

3.14bugs and security fixesbugs and security fixes

3.15new features, bugs and security fixesnew features, bugs and security fixes

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

topic-parser

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

Status: Open.

#141271 In python/cpython;

· tom-pytel opened on Nov 8, 2025

Walrus operator is not allowed inside the iterable of a comprehension which is itself the iterable of an outer comprehension

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

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

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

topic-parser

Status: Open.

#140649 In python/cpython;

· Adarsh-Roy opened on Oct 27, 2025

heap-buffer-overflow PyOS_StdioReadline Parser/myreadline.c

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

topic-parser

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

Status: Open.

#140594 In python/cpython;

· YuanchengJiang opened on Oct 25, 2025

Document missing AST node constructor behavior changes in ast.rst for python 3.13

docsDocumentation in the Doc dirDocumentation in the Doc dir

topic-parser

Status: Open.

#140196 In python/cpython;

· revdoor opened on Oct 16, 2025

FSTRING Start is not preserved in AST causing issue in <code>ast.unparse</code>

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

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

topic-parser

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

Status: Open.

#140026 In python/cpython;

· Thamirawaran opened on Oct 13, 2025

Misbehavior of <code>f.__code__.co_firstlineno</code> for decorated functions

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

topic-parser

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

Status: Open.

#139838 In python/cpython;

· picnixz opened on Oct 9, 2025

Assigning to a keyword generates unclear SyntaxError message

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

topic-parser

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#138885 In python/cpython;

· StanFromIreland opened on Sep 14, 2025

<code>case ...:</code> generates unclear <code>SyntaxError</code> message

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

topic-parser

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#138864 In python/cpython;

· sobolevn opened on Sep 13, 2025

Misleading error for ((a) := 1)

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

topic-parser

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

Status: Open.

#138294 In python/cpython;

· serhiy-storchaka opened on Aug 31, 2025

Promote <code>ast</code> node constructor deprecation warnings to errors

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

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

topic-parser

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#137600 In python/cpython;

· brianschubert opened on Aug 9, 2025

Improving various error messages

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

topic-parser

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#135975 In python/cpython;

· Joeccp opened on Jun 26, 2025

ast.ImportFrom.level is incorrectly marked as optional

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

topic-parser

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

Status: Open.

#135959 In python/cpython;

· JelleZijlstra opened on Jun 26, 2025