python function decorator

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Vanessa
29 Feb 2018
1def our_decorator(func):
2    def function_wrapper(x):
3        print("Before calling " + func.__name__)
4        func(x)
5        print("After calling " + func.__name__)
6    return function_wrapper
7
8@our_decorator
9def foo(x):
10    print("Hi, foo has been called with " + str(x))
11
12foo("Hi")
13
Carla
28 Apr 2016
1#Decorator are just function that take function as first
2#parameter and return a function
3def logging(f):
4  def decorator_function(*args, **kwargs):
5    print('executing '+f.__name__)
6    return f(*args, **kwargs)
7  return decorator_function
8#Use it like this
9@logging
10def hello_world():
11  print('Hello World')
12#calling hello_world() prints out:
13#executing hello_world
14#Hello World
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