python 计时器装饰器

import time
 from functools import wraps
def timethis(func):
 '''
 Decorator that reports the execution time.
 '''
 @wraps(func)
 def wrapper(*args, *kwargs):
 start = time.time()
 result = func(args, **kwargs)
 end = time.time()
 print(func.name, end-start)
 return result
 return wrapper

   @somedecorator
 def add(x, y):
 ...     return x + y
 ...
 orig_add = add.wrapped
 orig_add(3, 4)
 7