我怎么能把几个装修工装成一个？

Question

我在每个函数上都有几个装饰器，有没有办法把它们组合成一个？在

@fun1
@fun2
@fun3
def do_stuf():
    pass

更改为：

^{pr2}$

Answer 1

还可以编写一个支持decorator链接的泛型decorator：

def fun1(f):
    print "fun1"
    return f

def fun2(f):
    print "fun2"
    return f

def fun3(f):
    print "fun3"
    return f

def chained(*dec_funs):
    def _inner_chain(f):
        for dec in reversed(dec_funs):
            f = dec(f)
        return f

   return _inner_chain

@fun1
@fun2
@fun3
def do_stuff():
    pass

@chained(fun1, fun2, fun3)
def do_stuff2():
    pass

all_funs = chained(fun1, fun2, fun3)

@all_funs
def do_stuff3():
    pass