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Announcement issue for plugin API changes
#6617 · msullivan opened on Apr 3, 2019
24

Labels Milestones New issue

Mypy degrades inferred generic return type from tuple[type[T], ...] to object

topic-inference

topic-join-v-union

#20891

· Vanerio opened

on Feb 24, 2026

Backslashes become forward slashes in literal types in tests

#20884

· wyattscarpenter opened

on Feb 24, 2026

[dev] audit -skip tests

topic-developer

#20881

· wyattscarpenter opened

on Feb 24, 2026

Inconsistent feeling handling of Any in binder

topic-type-narrowing

#20870

· hauntsaninja opened

on Feb 23, 2026

Type checking <code>struct.unpack</code>

#20869

· sakgoyal opened

on Feb 23, 2026

error: Expression is of type "Any", not "Any" (Using <code>Any</code> as a <code>type</code>)

#20859

· George-Ogden opened

on Feb 22, 2026

Runs forever at 100% CPU for generic protocol with bounded TypeVar argument

topic-protocols

topic-recursive-types

#20828

· opk12 opened

on Feb 16, 2026

mypy should check qualname (and other special dunders)

topic-runtime-semantics

#20821

· A5rocks opened

on Feb 16, 2026

Incorrect narrowing between two different unions

topic-type-narrowing

#20820

· A5rocks opened

on Feb 15, 2026

Special dunder attributes on dataclass not treated as <code>init</code> args

topic-dataclasses

topic-runtime-semantics

#20819

· ktbarrett opened

on Feb 15, 2026

Issue with <code>attrs</code> custom <code>init</code> defined

#20818

· George-Ogden opened

on Feb 15, 2026

Add new syntax to let the mypy test file syntax anticipate --pretty output

#20811

· wyattscarpenter opened

on Feb 14, 2026