import subprocess

import sys

if len(sys.argv) == 3:

tag = sys.argv[1]

commit = sys.argv[2]

command = 'git tag -a {0} {1} -m "{2}"'.format(tag, commit, tag)

output = subprocess.check_output(command, shell=True).decode('utf-8')

subprocess.call(command, shell=True)

subprocess.call('git push --tags', shell=True)

else:

print('usage: tag.py TAG_NAME COMMIT')

sys.exit(1)