时间：2020-11-08 12:51:27 | 栏目：Python代码 | 点击：次
一个装饰器已经作用在一个函数上，你想撤销它，直接访问原始的未包装的那个函数。
假设装饰器是通过 @wraps 来实现的，那么你可以通过访问 wrapped 属性来访问原始函数：
>>> @somedecorator >>> def add(x, y): ... return x + y ... >>> orig_add = add.__wrapped__ >>> orig_add(3, 4) 7 >>>
如果有多个包装器：
In [588]: from functools import wraps
In [589]: def decorator1(func):
...: @wraps(func)
...: def wrapper(*args, **kwargs):
...: print ('Decorator 1')
...: return func(*args, **kwargs)
...: return wrapper
...:
In [590]: def decorator2(func):
...: @wraps(func)
...: def wrapper(*args, **kwargs):
...: print ('Decorator 2')
...: return func(*args, **kwargs)
...: return wrapper
...:
In [591]: @decorator1
...: @decorator2
...: def add(x, y):
...: return x+y
...:
In [592]: add(2,3)
Decorator 1
Decorator 2
Out[592]: 5
In [593]: add.__wrapped__(2, 3)
Decorator 2
Out[593]: 5
In [594]: add.__wrapped__.__wrapped__(2,3)
Out[594]: 5
参考：Python Cookbook