lists gonna list

gistfile1.py

import urlparse
import collections

urls = (l.strip() for l in open('urls.txt') if len(l.strip()))
data = collections.defaultdict(set)

for url in urls:
  domain = urlparse.urlparse(url).netloc
	data[domain].add(url)

while len(data):
	current_list = []
	for k in data.keys():
		current_list.append(data[k].pop())
		if not len(data[k]):
			del(data[k])
	print current_list