>>> import socket
>>> if hasattr(_socket, 'setdefaulttimeout'):
- >>> socket.setdefaulttimeout(5) # set 5 second timeout
+ ... socket.setdefaulttimeout(5) # set 5 second timeout
>>> r = Resolver()
+ >>> r.IP = {} # clear cache of date from previous tests
>>> r.resolve('198.41.0.4')
'a.root-servers.net'
>>> r.IP