Python Ninja Bootcamp 31-Decorators

by SN Gurukul on December 08, 2018 in Basic Python

Learn Python like a Professional! Take You from 0 to Hero

In this Python lecture, we will learn about the Python Decorators.

"Decorator is a function that takes another function as argument adds some kind of functionality and then returns another function."

Decorators in Python

Let's see some example-

def decorator_function(original_function):
    def wrapper_function():
        print('Hi')
        original_function()
    return wrapper_function

@decorator_function
def first_msg():
    print("Welcome back to python ninja bootcamp")

first_msg()

>>Hi
Welcome back to python ninja bootcamp

@decorator_function
def second_msg():
print("In this lecture will cover decorators")

first_msg()

>>Hi
In this lecture will cover decorators

def decorator_function(original_function):
    def wrapper_function(a,b):
        original_function(a,b)
        print("Code Ends Here")
    return wrapper_function

@decorator_function
def sum_function(a,b):
    print("Sum of a and b=",a+b)

sum_function(2,5)

>>Sum of a and b= 7
Code Ends Here

EDITS ARE WELCOMED!!

In the next Blog, we will discuss Map()

https://sngurukuls247.blogspot.com/2018/12/python-ninja-bootcamp-32-map.html

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