Re: Any way to "subclass" typing.Annotated?

ram@zedat.fu-berlin.de (Stefan Ram) wrote or quoted:

Option 2: Custom Wrapper Class

  To compile, this should read:

  Python

from typing import Annotated, TypeVar, Generic, Any

# Your trusty "abstract" flag, chillin' like it's at Venice Beach
abstract = object()

# Type variable, as constant as the NorCal fog
T = TypeVar("T")

class AbstractClassVariable(Generic[T]):
    def __class_getitem__(cls, item: T) -> Any:
        return Annotated[item, abstract]