On Tue, Jun 16, 2009 at 09:37:31PM -0400, Paul Wouters <paul at xelerance.com> wrote a message of 23 lines which said: > What about python-dns? http://www.dnspython.org/ > > If your python code uses threads, do you really need an async interface? I agree on both points and this is what we use for DNSdelve <http://www.dnsdelve.net/>. And parameter rdclass seems to allow Python-DNS to query other classes than IN.