Check function speed Python

decorator_check_func.py

from datetime import datetime
def check_func(method):
    def wrapper(*args, **kwargs):
        t0 = datetime.now()
        result = method(*args, **kwargs)
        t1 = datetime.now()
        print('Run with {:.16f} seccond'.format((t1-t0).total_seconds()))
        return result
    return wrapper