Run a shell command repeatedly until it fails

tothedeath

#! /usr/bin/env python3

import subprocess
from sys import argv


def main():
    if len(argv) < 2:
        print('Usage: {} <shell command>'.format(argv[0]))
        exit(1)

    run = 1
    while True:
        print('########## Run {} ##########'.format(run))
        return_code = subprocess.run(argv[1:]).returncode
        if return_code != 0:
            print('########## Error code {} ##########'.format(return_code))
            break
        run += 1


if __name__ == '__main__':
    main()