smarthosts.py

#!/usr/bin/env python
# -*- coding:utf-8 -*-

import sys
import urllib
import os
from shutil import copyfile
HOSTS_URL='https://smarthosts.googlecode.com/svn/trunk/hosts'
LOCAL_HOSTS='/etc/hosts'

def main():
  #backup hosts
	copyfile(LOCAL_HOSTS,'hosts.bak')
	with open(LOCAL_HOSTS,'aw') as hosts:
		hosts.write(os.linesep)
		for line in urllib.urlopen(HOSTS_URL):
			hosts.write(line.strip()+os.linesep)
	print 'Success!'

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