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dict with literal keys cannot be unpacked into a dict with str keys

bugmypy got something wrongmypy got something wrong

Status: Open.

#19893 In python/mypy;

· injust opened on Sep 20, 2025

Add a <code>per-file-target-version</code> configuration option

feature

Status: Open.

#19892 In python/mypy;

· dmarteau opened on Sep 20, 2025

mypy does not understand that in multiple assignment any involved expressions keep their type until the end of all assignments

bugmypy got something wrongmypy got something wrong

Status: Open.

#19891 In python/mypy;

· wyattscarpenter opened on Sep 20, 2025

There are no tests for mypy.plugins.proper_plugin

Status: Open.

#19890 In python/mypy;

· wyattscarpenter opened on Sep 20, 2025

attr-defined error is raised when reading default value of an <code>InitVar</code> field of a dataclass

bugmypy got something wrongmypy got something wrong

topic-dataclasses

topic-runtime-semanticsmypy doesn't model runtime semantics correctlymypy doesn't model runtime semantics correctly

Status: Open.

#19889 In python/mypy;

· ktns opened on Sep 19, 2025

Stubs not found when installed in separate venvs

bugmypy got something wrongmypy got something wrong

Status: Open.

#19888 In python/mypy;

· brandonchinn178 opened on Sep 19, 2025

Configuration to turn off disjoint base checks for custom metaclasses

feature

Status: Open.

#19887 In python/mypy;

· bzoracler opened on Sep 19, 2025

stubtest regression for NewType in compiled extensions

bugmypy got something wrongmypy got something wrong

topic-stubtest

Status: Open.

#19877 In python/mypy;

· QuLogic opened on Sep 18, 2025

Type confusion with protocol attributes when explicitly subclassing protocol

bugmypy got something wrongmypy got something wrong

topic-inheritanceInheritance and incompatible overridesInheritance and incompatible overrides

topic-protocols

Status: Open.

#19862 In python/mypy;

· hpelwintervold opened on Sep 16, 2025

Inconsistent constraint resolution for tuples.

bugmypy got something wrongmypy got something wrong

topic-pep-646PEP 646 (TypeVarTuple, Unpack)PEP 646 (TypeVarTuple, Unpack)

Status: Open.

#19860 In python/mypy;

· randolf-scholz opened on Sep 16, 2025

Lots of "var-annotated" after upgrading to mypy 1.18.1

bugmypy got something wrongmypy got something wrong

pendingIssues that may be closedIssues that may be closed

topic-pluginsThe plugin API and ideas for new pluginsThe plugin API and ideas for new plugins

Status: Open.

#19856 In python/mypy;

· asottile-sentry opened on Sep 15, 2025

Bad interaction between ParamSpec and TypeVarTuple

bugmypy got something wrongmypy got something wrong

topic-paramspecPEP 612, ParamSpec, ConcatenatePEP 612, ParamSpec, Concatenate

topic-pep-646PEP 646 (TypeVarTuple, Unpack)PEP 646 (TypeVarTuple, Unpack)

Status: Open.

#19855 In python/mypy;

· randolf-scholz opened on Sep 15, 2025