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

Labels Milestones New issue

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

#20818

· George-Ogden opened

on Feb 15, 2026

Performance impact of --allow-redefinition-new

priority-0-high

topic-inference

#20816

· ilevkivskyi 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

--follow-imports=skip is broken in incremental mode when modules are not in root sources

topic-incremental

#20800

· ilevkivskyi opened

on Feb 13, 2026

Submodule in 'import from' not detected when added

topic-incremental

#20799

· ilevkivskyi opened

on Feb 13, 2026

NotImplementedError: Cannot serialize PlaceholderNode instance

#20796

· correctmost opened

on Feb 13, 2026

del partial_types[var] fails with KeyError: <Var 'errors' at 0x...>

#20792

· ericbn opened

on Feb 12, 2026

Type check ignored on a dictionary

topic-type-context

#20791

· danmur97 opened

on Feb 12, 2026

Private members (_underscored) in an Enum are incorrectly considered members of the enum

#20789

· denisrossetre opened

on Feb 12, 2026

Incorrect check of runtime_checkable protocol which is not used <code>@</code> class decorator

topic-protocols

topic-runtime-semantics

#20787

· mixilchenko opened

on Feb 12, 2026

Support type narrowing on eq with TypeGuard/TypeIs

topic-type-narrowing

topic-typeguard-typeis

#20779

· frankie567 opened

on Feb 11, 2026

TypeVarTuple inference yields Never when splitting Ts into (T, Rest) with protocol

#20771

· CaselIT opened

on Feb 8, 2026