#Decorators

import time

def tictoc(func):
    def wrapper():
        t1 = time.time()
        func()
        t2 = time.time()-t1
        print(f'Took {t2} seconds')
    return wrapper

@tictoc
def do_this():
    time.sleep(1.3)

@tictoc
def do_that():
    time.sleep(.4)

do_this()
do_that()
print('Done')

#----------------------------------------------------#

def trace(func):
    def wrapper():
        print(func.__name__, 'start...')
        func()
        print(func.__name__, '...end')
    return wrapper

@trace
def hello():
    print('hello')

@trace
def world():
    print('world')

hello()
world()