Decorators in python

Decorators in python

decorator to change the behavior of the existing function

    A decorator in Python is a function that takes another function as its argument, and returns yet another function . 

    Decorators can be extremely useful as they allow the extension of an existing function, without any modification to the original function source code.

def division(a,b):
    if a<b:
        a,b = b,a
    print(a/b)

division(2,4)

2.0

Using Decorators 

def division(a, b):
    print(a / b)


def smart_divison(func):
    def inner_fun(a, b):
        if a < b:
            a, b = b, a
            return func(a, b)
    return inner_fun


new = smart_divison(division)

new(2, 4)

2.0