Countdown Timer: time.sleep(), sys.argv()

countdown.py

#!/bin/python3
'''Countdown Timer
`$ python3 countdown.py 15` <-- 15 min timer example'''
from time import sleep
from sys import argv

tot_secs = int(argv[1]) * 60  # convert minute(s) string


def countdown(tot_secs):
    '''Countdown total seconds in 5 sec increments format to digital clock format'''
    while tot_secs:
        mins, secs = divmod(tot_secs, 60)  # (2, 0) --> 120 sec / 60 with zero secs remaining (remainder)
        print(f'{mins:2d}:{secs:02d}')  # 2:00 (convert `mins` and `secs` to digital format)
        sleep(5)  # pause 5 secs for time sequence
        tot_secs -= 5  # subtract 5 from total seconds
    print('\x1b[1;7;31m END \x1b[0m')  # print END when total seconds reaches zero


countdown(tot_secs)