Basic decorator

import time

def decorator(func):
    def wrapper():
        print('decoration begins')
        func()
        print('decoration ends')
    return wrapper

def duration_decorator(func):
    def wrapper():
        start_time = time.time()
        func()
        duration = time.time() - start_time
        print(f'duration {duration}')
    return wrapper

def double_decorator(func):
    def wrapper():
        func()
        func()
    return wrapper

@double_decorator
@decorator
@duration_decorator
def func():
    print('Function')
    time.sleep(1)

#func = decorator(func)
func()