Passing a parameter to the decorator in python

Question

Why is this decorator with a parameter not working?

def decAny( f0 ):
    def wrapper( s0 ):
        return \"<%s> %s \" % ( any, f0(), any          


        

Answer 1

There is a good sample from "Mark Lutz - Learning Python" book:

def timer(label=''):
    def decorator(func):
        def onCall(*args):   # Multilevel state retention:
            ...              # args passed to function
            func(*args)      # func retained in enclosing scope
            print(label, ... # label retained in enclosing scope
        return onCall
    return decorator         # Returns the actual decorator

@timer('==>')                # Like listcomp = timer('==>')(listcomp)
def listcomp(N): ...         # listcomp is rebound to new onCall

listcomp(...)                # Really calls onCall