Vous voulez ajouter des indices de type aux décorateurs Python?

from functools import wraps
from typing import Any, Callable, TypeVar, cast

FuncType = TypeVar("FuncType", bound=Callable[..., Any])

def print_funcname(func: FuncType) -> FuncType:
    @wraps(func)
    def wrapper():
        print("Nom de la fonction:", func.__name__)
        func()
    return cast(FuncType, wrapper)

@print_funcname
def hello():
    print("Hello!")

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