Construction of python decorators

! # / usr / bin / to python3 
# - * - Coding: UTF-. 8 - * - 
# @time: 2019/9/27 17:04 
# @author: v_ctaozhang 

Import functools 

# without decorator parameter 
DEF log (FUNC ): 
 @ functools.wraps (FUNC) 
 DEF warpper (* args , ** kwargs): 
 Print ( . 'Call% S ()'% FUNC the __name__) 
 return FUNC (* args , ** kwargs) 
 return warpper 

@log 
DEF now (): 
 Print ( " the time now is : 2019 Nian 9 Yue 27 Ri ") 

now () 

# decorators with arguments 
DEF log (text): 
 DEF decorator (FUNC):
 functools.wraps @ (FUNC) 
 DEF warpper (* args , ** kwargs): 
 Print ( '% S% S ():'% (text ., FUNC the __name__)) 
 return FUNC (* args , ** kwargs) 
 return warpper 
 decorator return 

@log ( " I'm a decorator with arguments ") 
DEF nowAndPrint (): 
 Print ( " the way I was with decorative packaging parameters ") 

nowAndPrint () 

# prints out the name of the function called 
Print (now. __name__ ) 
Print (nowAndPrint. __name__)