Shared via mypy Playground

main.py

from collections.abc import Callable

def pprint(obj: object, repr_fn: Callable[..., str] = NotImplemented):
    repr_fn = (
        repr_fn   # expression has type "function", variable has type "Callable[..., str]"
        if repr_fn is not NotImplemented
        else repr
    )
    
    return repr_fn(obj)