doc/names/examples/gethostbyname.py

   1 #!/usr/bin/env python
   2
   3 # Copyright (c) Twisted Matrix Laboratories.
   4 # See LICENSE for details.
   5
   6 """
   7 Returns the IP address for a given hostname.
   8 To run this script:
   9 $ python gethostbyname.py <hostname>
  10 e.g.:
  11 $ python gethostbyname.py www.google.com
  12 """
  13 import sys
  14 from twisted.names import client
  15 from twisted.internet import reactor
  16
  17 def gotResult(result):
  18     print result
  19     reactor.stop()
  20
  21 def gotFailure(failure):
  22     failure.printTraceback()
  23     reactor.stop()
  24
  25 d = client.getHostByName(sys.argv[1])
  26 d.addCallbacks(gotResult, gotFailure)
  27
  28 reactor.run()