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Empty variadic <code>tuple</code> subtype not assignable to <code>tuple[int, ...]</code>

bugmypy got something wrongmypy got something wrong

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

Status: Open.

#19110 In python/mypy;

· jorenham opened on May 18, 2025

<code>tuple[Any, *tuple[Any, ...]]</code> is not assignable to other tuple types

bugmypy got something wrongmypy got something wrong

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

Status: Open.

#19109 In python/mypy;

· jorenham opened on May 18, 2025

incorrect inference of user-defined variadic tuple subtype instances

bugmypy got something wrongmypy got something wrong

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

Status: Open.

#19106 In python/mypy;

· jorenham opened on May 18, 2025

<code>class S(tuple[*tuple[()]])</code> crashes mypy

crash

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

Status: Open.

#19105 In python/mypy;

· jorenham opened on May 18, 2025

Lenient TypeVarTuple checking when number of dimensions is unknown

feature

needs discussion

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

Status: Open.

#18665 In python/mypy;

· JukkaL opened on Feb 12, 2025

mypy doesn't know about empty unpacked tuples

bugmypy got something wrongmypy got something wrong

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

Status: Open.

#18390 In python/mypy;

· A5rocks opened on Dec 31, 2024

Cannot infer type argument with TypeVarTuple and Callback protocol

bugmypy got something wrongmypy got something wrong

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

topic-protocols

Status: Open.

#17453 In python/mypy;

· cdce8p opened on Jun 30, 2024

Unpacked TypeVarTuple as a function argument is not compatible with empty tuple as its default

bugmypy got something wrongmypy got something wrong

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

Status: Open.

#17113 In python/mypy;

· airallergy opened on Apr 10, 2024

Cannot infer type of lambda regression with mypy 1.9

bugmypy got something wrongmypy got something wrong

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

Status: Open.

#17018 In python/mypy;

· rbuffat opened on Mar 12, 2024

Allow TypeVarTuple as type argument for subclasses of generic TypedDict

bugmypy got something wrongmypy got something wrong

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

topic-typed-dict

Status: Open.

#16975 In python/mypy;

· erikkemperman opened on Mar 1, 2024

Support for Union[*TypeVarTuple]

feature

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

Status: Open.

#16720 In python/mypy;

· pwuertz opened on Dec 31, 2023

Callables like <code>operator.call</code> produce <code>arg-type</code> error with callables that take <code>*args: Unpack[Ts]</code> and &gt;= 1 keyword argument

bugmypy got something wrongmypy got something wrong

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

Status: Open.

#16662 In python/mypy;

· gschaffner opened on Dec 14, 2023