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stubgen generates bad signatures when mixing historical positional-only names and keyword-only parameters

bugmypy got something wrongmypy got something wrong

topic-stubgen

Status: Open.

#19315 In python/mypy;

· brianschubert opened on Jun 18, 2025

Overlapping modules overloads in <code>pyproject.toml</code> result in undefined behavior

bugmypy got something wrongmypy got something wrong

topic-configurationConfiguration files and flagsConfiguration files and flags

Status: Open.

#19314 In python/mypy;

· stephenfin opened on Jun 18, 2025

False negative on <code>setter</code> field of undefined variable

bugmypy got something wrongmypy got something wrong

topic-descriptorsProperties, class vs. instance attributesProperties, class vs. instance attributes

Status: Open.

#19312 In python/mypy;

· sterliakov opened on Jun 18, 2025

valid-type not reported for variables imported in other modules

bugmypy got something wrongmypy got something wrong

topic-error-reportingHow we report errorsHow we report errors

Status: Open.

#19310 In python/mypy;

· njgrisafi opened on Jun 17, 2025

Type narrowing fails on type(None) or NoneType

feature

topic-type-narrowingConditional type narrowing / binderConditional type narrowing / binder

Status: Open.

#19308 In python/mypy;

· Jonathan-Landeed opened on Jun 17, 2025

1.17 Release Planning

metaIssues tracking a broad area of workIssues tracking a broad area of work

Status: Open.

#19306 In python/mypy;

· esarp opened on Jun 16, 2025

Assigning to intermediate variable changes type checking results

bugmypy got something wrongmypy got something wrong

topic-type-contextType context / bidirectional inferenceType context / bidirectional inference

Status: Open.

#19304 In python/mypy;

· randolf-scholz opened on Jun 16, 2025

Type checking for *args and **kwargs when passing them to another function

feature

topic-callsFunction calls, *args, **kwargs, defaultsFunction calls, *args, **kwargs, defaults

Status: Open.

#19302 In python/mypy;

· t1m013y opened on Jun 15, 2025

Followup tasks for checkmember.py refactoring

metaIssues tracking a broad area of workIssues tracking a broad area of work

priority-1-normal

refactoringChanging mypy's internalsChanging mypy's internals

Status: Open.

#19299 In python/mypy;

· ilevkivskyi opened on Jun 14, 2025

Add full support for functools.lru_cache

feature

Status: Open.

#19291 In python/mypy;

· gandhis1 opened on Jun 13, 2025

crash for a very specific invocation of mypy: <code>assert isinstance(visitor, SyntheticTypeVisitor)</code>

crash

Status: Open.

#19286 In python/mypy;

· asottile-sentry opened on Jun 12, 2025

Bounded generic type parameter not narrowed past its upper bound, regardless of argument value

bugmypy got something wrongmypy got something wrong

topic-join-v-unionUsing join vs. using unionsUsing join vs. using unions

Status: Open.

#19285 In python/mypy;

· alythobani opened on Jun 12, 2025