What is the easiest way to get current GMT time in Unix timestamp format?

Question

Python provides different packages (datetime, time, calendar) as can be seen here in order to deal with time. I made a big mistake by

Answer 1

python2 and python3

it is good to use time module

import time
int(time.time())

1573708436

you can also use datetime module, but when you use strftime('%s'), but strftime convert time to your local time!

python2

from datetime import datetime
datetime.utcnow().strftime('%s')

python3

from datetime import datetime
datetime.utcnow().timestamp()