from hosts import Hosts
hosts = Hosts(path='/tmp/hosts')
#hosts.import_url('https://dl.dropboxusercontent.com/u/167103/hosts')
hosts.import_url('http://www.winhelp2002.mvps.org/hosts.txt')
#hosts.import_url('https://raw.githubusercontent.com/StevenBlack/hosts/master/hosts')
#hosts.import_url('https://dl.dropboxusercontent.com/u/167103/hosts2')

add test for profiling.