[Python] IP - All Domains grabber

#!/usr/bin/python

import re , urllib2 , sys , os
from platform import system

if system() == 'Linux':
    os.system('clear')
if system() == 'Windows':
    os.system('cls')

logo = '''
##################################################
#####                 Kaiba                  #####
#####         IP Domain Grabber              #####
#####           How to use:                  #####
#####         ./'''+sys.argv[0]+''' 127.0.0.1            #####
#####         python '''+sys.argv[0]+''' 127.0.0.1       #####
##################################################
'''

def unique(seq):
    seen = set()
    return [seen.add(x) or x for x in seq if x not in seen]

print(logo)
try:
	lista = []
	s = sys.argv[1]
	page = 1
	print('\n')
	while page <= 21:
		bing = "http://www.bing.com/search?q=ip%3A"+s+"+&count=50&first="+str(page)
		openbing  = urllib2.urlopen(bing)
		readbing = openbing.read()
		findwebs = re.findall('<h2><a href="(.*?)"' , readbing)
		for i in range(len(findwebs)):
			allnoclean = findwebs[i]
			findall1 = re.findall('http://(.*?)/', allnoclean)
			for idx, item in enumerate(findall1):
					if 'www' not in item:
							findall1[idx]  = 'http://www.' + item + '/'
					else:
     						findall1[idx]  = 'http://' + item + '/'
			lista.extend(findall1)

		page = page + 10

	final =  unique(lista)
	for all1 in final:
		print(all1)

	try:
		for i , l in enumerate(final):
			pass
		print '\nSites Found : ' , i + 1
	except:
		pass

except IndexError:
	pass