twitter user check

#!/usr/bin/python

import urllib2 ,sys ,re

try:
    word = open(sys.argv[1], 'r').readlines()
    print "[+] Load Complete\n[+] Lines:",len(word)
except("IOError"):
    print "[-] Can't Load List !"
    sys.exit(1);
for list in word:
    target = 'https://twitter.com/users/username_available?context=signup&custom=true&email=&full_name=&suggest=1&suggest_on_username=true&username='+list
    get = urllib2.urlopen(target).read()
    search = re.search('Available!', get)
    if search:
        regs = search.groups()
        print '[+] Avaliable -> ',list
        file = open('saved.txt', 'a+');
        file.write(list)
    else:
        print '[-] Not Avaliable -> ',list