How can i add a function / method to the annotation of another function / list in Python?-CodePudding

If i want to specify the signature of a function or content of a list, i can just use these annotations:

def say(word: str):
    print(f"I said {word}!")

some_words: list[str] = ["foo", "bar"]

But what if i want to use functions and methods in annotations? I`ve searched for this everywhere but didn't find anything similar to it. Here is the example of what i want to reach:

def add(a: int, b: int) -> int:
    return a   b

def run_with_notify(func: <what type?>, *args):
    print("Start!")
    print(func(*args))
    print("End!")

run_with_notify(add, 2, 3)

Of course i could just not use annotations at all, but it is much more convenient to use them if you work in powerful IDE. Any ideas?

CodePudding user response：

you can use from typing library like this:

from typing import Callable
def run_with_notify(func: Callable, *args):
    print("Start!")
    print(func(*args))
    print("End!")