How can i create timer or contdown in python?

Is there any function or way that I can greate timer in python?

For example:you have 5 seconds to slove this question or maybe to calculate total time for solving this question
The simple one countdown:

>Solution :

Here is your code:

import time
run = int(input(""))
if run:
    for i in range(1, run+1):
        time.sleep(1)
        print(i)