Type Hint for Generic

Recipes

Generic Function

def generic_func[T](arg: T) -> T:
    return arg + 1

# Python 3.11-

from typing import TypeVar

# Generic Type Variables
T = TypeVar['T', int, float]

def generic_func(arg: T) -> T:
    return arg + 1

Generic Class

class GenericClass[T]:
    pass

# Python 3.11-

from typing import TypeVar, Generic

# Generic Type Variables
T = TypeVar['T', int, float]

class GenericClass(Generic[T]):
    pass

More Details

References