maple42

#!/usr/bin/env python
# -*- coding: utf-8 -*-

import functools

def log(func):
    @functools.wraps(func)
    def wrapper(*args, **kw):
        print 'begin call'
        func(*args, **kw)

maple42

#!/usr/bin/env python
#_*_ conding:utf8 _*_

def log(string): 

    if  isinstance(string,str):

        def decorator(func):

            def wrapper(*args,**kw):