Issues · python/mypy · GitHub

Announcement issue for plugin API changes
#6617 · msullivan opened on Apr 3, 2019
25

Labels Milestones New issue

mypy reports false-positive [exhaustive-match] error when there is an unreachable match

topic-match-statement

topic-reachability

#21517

· dima179-fuse opened

on May 19, 2026

We need equivalent of parse_type_string() in native parser

parallel checking

#21515

· ilevkivskyi opened

on May 19, 2026

Native parser reads file eagerly if there is one file in parse batch

parallel checking

#21514

· ilevkivskyi opened

on May 19, 2026

[Regression 1.19.1 -> 1.20.0] `value in container` based narrowing causes false negatives.

#21512

· randolf-scholz opened

on May 19, 2026

`TypeIs` with `isinstance` fails to narrow

#21508

· MarcoGorelli opened

on May 18, 2026

Descriptor access fails for complex generics

#21505

· BenjyWiener opened

on May 18, 2026

crash when type checking file in a read only directory

#21495

· karlicoss opened

on May 16, 2026

Support PEP 798

#21489

· hauntsaninja opened

on May 15, 2026

wrong inference with nested unpacking

#21485

· JanEricNitschke opened

on May 14, 2026

Mypy 2.X periodically and inconsistently throws an error

#21484

· barbarrista opened

on May 14, 2026

fastparse and native parser assign different line numbers to nested subscripts in multi-line type annotations

#21480

· sunny-zuo opened

on May 13, 2026

Detect number of CPUs with `--num-workers 0`

parallel checking

#21477

· hugovk opened

on May 13, 2026