I'm type hinting like this:
some_kwarg: Tuple[Callable] = ()
but mypy raises
error: Incompatible default for argument "some_kwarg" (default has type "Tuple[]", argument has type "Tuple[Callable[..., Any]]")
I wouldn't want to put a dummy callable in the default kwarg so what's the right thing to do?
You are type annotating it to accept a tuple of size exactly 1. Use:
Tuple[Callable, ...]
To indicate a homogeneous tuple of any size.
It looks like your parameter is optional so you could use Optional from typing. I use the following and mypy diden't find any issues.
from typing import Tuple, Optional, Callable
def test_fun(some_kwarg: Optional[Tuple[Callable]]=None):
pass