high volume/speed gethostbyaddr how?

[Dan Polak]

In article <mailman.1020444726.27667.python-list at python.org>, 
phd at phd.pp.ru says...
> On Fri, May 03, 2002 at 06:17:26PM +0200, Dan Polak wrote:
> > Gethostbyaddr blocks by default, this means that there is an appreciable 
> > delay before it returns.
> > If you need to lookup a fair number of hostnames gethostbyaddr is much 
> > too slow.
> > Using select or the asyncore library might be the way to do it, but I 
> > don't really understand how to make that work.
> > What is a good way to retrieve the names for a 100 hosts within a few 
> > seconds?
> 
>    GNU adns asynchronous DNS:
>       http://www.gnu.org/software/adns/adns.html
>       http://dustman.net/andy/python/adns-python
> 
> Oleg.
> 
Good solution too but I didn't want the extra library so I went with 
threads. I didn't know about asynchronous DNS, interesting.
Thank you!

Dan