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Announcement issue for plugin API changes
#6617 · msullivan opened on Apr 3, 2019
23

Labels Milestones New issue

False positive with warn unreachable, Any, and None

topic-reachability

#20532

· hauntsaninja opened

on Jan 6, 2026

Using the type alias created by <code>TypeAliasType</code> which is the base of a type statement, mypy gives error

#20531

· hyperkai opened

on Jan 6, 2026

Nondeterministic type-var error with LiteralString-bounded TypeVars

#20528

· ericbuehl opened

on Jan 5, 2026

Assertion failure crash: assert not self.has_type_var_tuple_type

#20527

· correctmost opened

on Jan 5, 2026

Crash on code mixing instances and type typed variables

#20526

· guillonb opened

on Jan 5, 2026

Allow <code>types.GeneratorType</code> to be used instead of <code>collections.abc.Generator</code> as the return type of generator functions

topic-runtime-semantics

#20522

· x42005e1f opened

on Jan 4, 2026

dmypy's <code>--use-fine-grained-cache</code> crashes with <code>KeyError</code> on namespace packages

#20519

· bzoracler opened

on Jan 3, 2026

False positive when assigning bounded generic to union including the bound

#20516

· randolf-scholz opened

on Jan 3, 2026

Return type of property setters is not checked

#20513

· decorator-factory opened

on Jan 2, 2026

Integrate codspeed?

#20504

· hauntsaninja opened

on Dec 31, 2025

Installing typeshed stubs from lockfile

#20503

· LecrisUT opened

on Dec 31, 2025

<code>_v</code> can be read and written from the outside of the class so the generic class should be invariant properly.

#20501

· hyperkai opened

on Dec 31, 2025