ipv4 only

iplookup.py

#!/usr/bin/env python
import socket
import sys


def main(host):
	exit_code = 0
	try:
		# This is a work-around for socket.gethostbyname() causing KeyboardInterrupt to be uncatchable.
		# From: https://mail.python.org/pipermail/python-bugs-list/2007-July/039118.html
		try:
			address = socket.gethostbyname(host)
		except KeyboardInterrupt:
			raise
		print(address)
	except (socket.gaierror, KeyboardInterrupt):
		exit_code = 1
	sys.exit(exit_code)


if __name__ == '__main__':
	main(sys.argv[1])