traveler.core.typing_util.get_origin

traveler.core.typing_util.get_origin(tp)

Get the unsubscripted version of a type.

This supports generic types, Callable, Tuple, Union, Literal, Final, ClassVar, Annotated, and others. Return None for unsupported types.

Examples:

>>> P = ParamSpec('P')
>>> assert get_origin(Literal[42]) is Literal
>>> assert get_origin(int) is None
>>> assert get_origin(ClassVar[int]) is ClassVar
>>> assert get_origin(Generic) is Generic
>>> assert get_origin(Generic[T]) is Generic
>>> assert get_origin(Union[T, int]) is Union
>>> assert get_origin(List[Tuple[T, T]][int]) is list
>>> assert get_origin(P.args) is P