GitHub · Where software is built

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

Labels Milestones New issue

Incorrect resolution of <code>type[TypeVar]</code> returning <code>TypeVar</code> with <code>numpy</code>

topic-type-variables

#20354

· Dr-Irv opened

on Dec 2, 2025

[1.19 regression] output format overruled by .mypy_cache

topic-error-reporting

#20353

· sjoerdjob-legalsense opened

on Dec 2, 2025

<code>--disable-error-code=unused-ignore</code> should override <code>enable_error_code = ["unused-ignore"]</code>

topic-configuration

topic-error-reporting

#20348

· bersbersbers opened

on Dec 2, 2025

Nondeterministic output when using tuple type vars

#20344

· Apakottur opened

on Dec 1, 2025

[1.19 regression] [mypyc] generator → AssertionError

#20341

· mr-c opened

on Dec 1, 2025

Assertion failure crash with shadowed functools module: assert isinstance(singledispatch_obj, Instance)

#20339

· correctmost opened

on Dec 1, 2025

Swapping some type variables gives incorrect results

priority-1-normal

topic-type-variables

#20336

· randolf-scholz opened

on Nov 30, 2025

<code>ClassVar</code> cannot contain <code>Self</code> type in generic classes

#20331

· randolf-scholz opened

on Nov 29, 2025

[1.18 regression] Negative type narrowing of <code>TypeIs</code> of Union with <code>TypeVar</code> not working

topic-type-narrowing

topic-typeguard-typeis

#20330

· FancyNeuron opened

on Nov 29, 2025

Mypy 1.19.0 can't be installed on pypy

topic-usability

#20329

· Spacetown opened

on Nov 29, 2025

Lint against cases where user likely intended to use constrained type variables

#20318

· hyperkai opened

on Nov 28, 2025

mypy incorrectly flags a type-var error when a descriptor overrides a protocol property in a different file.

topic-descriptors

topic-protocols

#20317

· thomas-mckay opened

on Nov 28, 2025