def our_decorator(func):
def function_wrapper(x):
print("Before calling " + func.__name__)
func(x)
print("After calling " + func.__name__)
return function_wrapper
def foo(x):
print("Hi, foo has been called with " + str(x))
print("We call foo before decoration:")
foo("Hi")
print("We now decorate foo with f:")
foo = our_decorator(foo)
print("We call foo after decoration:")
foo(42)
We call foo before decoration:
Hi, foo has been called with Hi
We now decorate foo with f:
We call foo after decoration:
Before calling foo
Hi, foo has been called with 42
After calling foo