Script to show how to make a generic decorator which will take all the arguments passed to the decorated function

generic_decorator.py

# To make a generic decorator use *args and **kwargs

def a_decorator_passing_arbitrary_arguments(function_to_decorate):
    # The wrapper accepts any arguments
    def a_wrapper_accepting_arbitrary_arguments(*args, **kwargs):
	print 'Do I have args?'
	print args
	print kwargs
	function_to_decorate(*args, **kwargs)
    return a_wrapper_accepting_arbitrary_arguments

@a_decorator_passing_arbitrary_arguments
def function_with_no_arguments():
    print 'Python is cool, no arguments here'
function_with_no_arguments()

@a_decorator_passing_arbitrary_arguments
def function_with_arguments(a, b, c):
    print a, b, c
function_with_arguments('Harry', 'Ron', 'Hermione')

@a_decorator_passing_arbitrary_arguments
def function_with_named_arguments(a, b, c, want = 'Invisibilty Cloak'):
    print '%s, %s and %s want the %s' %(a, b, c, want)
function_with_named_arguments('Harry', 'Ron', 'Hermione', want = 'Elder Wand')

class Ginny(object):

    def __init__(self):
	self.age = 31
    
    @a_decorator_passing_arbitrary_arguments
    def say_your_age(self, lie):
	print 'I am %s years old' %(self.age - lie)

g = Ginny()
g.say_your_age(10)