title: Reverse DNS lookup in Python
body: <p>If I have an IP address like 2001:4860:4860::8888</p>
  
  <p>How can I get the fully qualified domain in the format foo.ip6.arpa ?</p>
  
  <p>EDIT: Both the solutions so far give me google-public-dns-a.google.com - maybe Reverse DNS was the wrong name. For this I'd expect the output to be something like 8.8.8.8.0...etc.ip6.arpa</p>