simple decorator to approximate run time for basic functions

timeitdecorator.py

import time
from functools import wraps


def timeit(func):
    @wraps(func)
    def wrapper(*args, **kwargs):
        t_initial = time.perf_counter()
        value = func(*args, **kwargs)
        t_final = time.perf_counter() - t_initial
        print(f"{func.__name__!r} finished in {t_final-t_initial:0.4f} secs.")
        return value
    return wrapper