Basic Decorator concept in Python example

 Decorator concept in Python example

from datetime import datetime

# Below piece of code is a simple time display function.

def print_time():

    #Before logic

    time = datetime.now()

    #after logic

    return time

print(print_time())

# Decorator Ex:

def log_it(func):

    def wrapper():

        print("Before function call")

        func()

        print("After function call")

    return wrapper

print("---------------")

#Adding additional logic using decorator.

@log_it

def print_time_decorator():

    print(datetime.now())

print_time_decorator()