Search results

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

crash

Status: Open.

#20792 In python/mypy;

· ericbn opened on Feb 12, 2026

Type check ignored on a dictionary

bugmypy got something wrongmypy got something wrong

Status: Open.

#20791 In python/mypy;

· danmur97 opened on Feb 12, 2026

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

bugmypy got something wrongmypy got something wrong

topic-enum

Status: Open.

#20789 In python/mypy;

· denisrossetre opened on Feb 12, 2026

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

bugmypy got something wrongmypy got something wrong

topic-runtime-semanticsmypy doesn't model runtime semantics correctlymypy doesn't model runtime semantics correctly

Status: Open.

#20787 In python/mypy;

· mixilchenko opened on Feb 12, 2026

Support type narrowing on __eq__ with TypeGuard/TypeIs

feature

topic-type-narrowingConditional type narrowing / binderConditional type narrowing / binder

topic-typeguard-typeisTypeGuard / TypeIs / PEP 647 / PEP 742TypeGuard / TypeIs / PEP 647 / PEP 742

Status: Open.

#20779 In python/mypy;

· frankie567 opened on Feb 11, 2026

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

bugmypy got something wrongmypy got something wrong

topic-pep-646PEP 646 (TypeVarTuple, Unpack)PEP 646 (TypeVarTuple, Unpack)

Status: Open.

#20771 In python/mypy;

· CaselIT opened on Feb 8, 2026

<code>callable()</code> fails to narrow type to <code>Callable</code>

feature

topic-type-narrowingConditional type narrowing / binderConditional type narrowing / binder

Status: Open.

#20748 In python/mypy;

· cjwatson opened on Feb 5, 2026

pynamodb_mypy plugin issue

bugmypy got something wrongmypy got something wrong

topic-pluginsThe plugin API and ideas for new pluginsThe plugin API and ideas for new plugins

Status: Open.

#20746 In python/mypy;

· cunla opened on Feb 5, 2026

Regression: Type of instance variable narrowed incorrectly after <code>is not</code> expression

bugmypy got something wrongmypy got something wrong

topic-type-narrowingConditional type narrowing / binderConditional type narrowing / binder

Status: Open.

#20736 In python/mypy;

· p-sawicki opened on Feb 4, 2026

Regression: Type of literal narrowed when asserting equality to a NewType

bugmypy got something wrongmypy got something wrong

topic-type-narrowingConditional type narrowing / binderConditional type narrowing / binder

Status: Open.

#20733 In python/mypy;

· p-sawicki opened on Feb 3, 2026

1.20 and 2.0 Release Planning

metaIssues tracking a broad area of workIssues tracking a broad area of work

Status: Open.

#20726 In python/mypy;

· ilevkivskyi opened on Feb 2, 2026

Relax default overload subtyping checks

false-positivemypy gave an error on correct codemypy gave an error on correct code

feature

topic-overloads

Status: Open.

#20720 In python/mypy;

· randolf-scholz opened on Feb 2, 2026