python/typing · Discussions

asked

Jul 16, 2025 in

What are typing.IO, TextIO, and BinaryIO good for?

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JelleZijlstra

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Aug 9, 2021 in

Is a type variable with repeated constraints valid?

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bzoracler

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Apr 8, 2026 in

Supporting Self for Free Functions?

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Natuworkguy

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May 23, 2026 in

Unbound ParamSpec, but why?

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hannes-ucsc

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May 11, 2026 in

Optinal in Callable with self

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ninanomenon

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May 13, 2026 in

Is is_typeddict with Generics supposed to eval to false?

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topic: other

Other topics not covered

semohr

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Apr 21, 2026 in

Deep interactions between Protocols and overloads

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RBerga06

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Jul 29, 2025 in

Proposal: Support tuple[T, N] syntax for fixed-length homogeneous tuples

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exprator-python

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Aug 11, 2025 in

Polls

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Does assert_type is supposed to work with Protocol?

rayansostenes

asked

Jul 24, 2024 in

Reasons for not allowing generics in ClassVar?

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treykeown

started

Jul 1, 2023 in

problems implementing overloads on some flexible class methods

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cjw296

asked

Jul 8, 2025 in

mypy and logging.Logger subclasses

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asked

Dec 16, 2021 in

Support for specifying type parameters at function call time (like func[int]()) with runtime introspection

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jonathanslenders

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Feb 26, 2026 in

@overload with multiple Generic[Any]

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asked

Jan 23, 2026 in

CallableFunction as a drop-in replacement for Callable

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hunterhogan

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Feb 22, 2026 in

Does converter also support default argument in field specifiers of dataclass_transform?

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PragmaTwice

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Feb 22, 2026 in

Proposal: KeyType and ElementType for TypedDicts (also, Map)

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tmke8

started

Jun 16, 2023 in

What is the idiomatic way of reusing key/values of TypedDict when total=False and True is needed?

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andresdelfino

asked

Jan 15, 2026 in

Type hint for attribute that might not exist

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cjw296

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Jan 23, 2025 in

Returing generic type from indirect factory methods?

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pmhahn

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Jan 26, 2026 in

Immutable Sequence of float with length 3 as argument

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RubendeBruin

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Jan 28, 2026 in

Should type checkers trust assert statements with mutable values?

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started

Jan 21, 2026 in

Typing for a MutableMapping that contains specific key-value pairs

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dmi-dmi-dmi

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Jul 22, 2022 in

Clarifying appropriate use cases for Literal types in the guides

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u-harshitha007

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Jan 11, 2026 in