On Monday, 30 September 2013 14:36:34 UTC+2, William Ray Wing wrote: > On Sep 30, 2013, at 7:42 AM, Michel Albert <***> wrote: > > > > > Hi, > > > > > > ``socket.gethostbyname`` sends the DNS resolution query to the DNS server > > specified by the OS. Is there an easy way to send a query to a *different* > > server? > > > > > > I see that twisted.names allows you to do this, but, having all of twisted > > as dependency to my project when all I need to do is a simple DNS query > > seems a bit extreme. I also found pydns, but that looks fairly outdated and > > unmaintained. > > > > > > Is there not an actively maintained lightweight solution? If not, I will go > > with twisted. > > > > > > > > > Cheers, > > > Mich. > > > -- > > > https://mail.python.org/mailman/listinfo/python-list > > > > It isn't pure python, but you would be pretty much guaranteed a maintained > solution if you use the name server lookup in your OS. Something like: > > > > import subprocess > > nsl_reslt = subprocess.Popen(['nslookup', '<insert name nere>' ],stderr > = subprocess.PIPE, stdout = subprocess.PIPE).communicate()[0] > > > > > > Hope this helps, > > Bill
Hmm... I had this option in mind, but opening a subprocess for something as small as this seemed a bit error-prone. If something on the system changes, nslookup replaced by dig or nslookup output changes for example your application will bug out. Granted, the chance of this happening is slim, but using a fixed-version dependency in your setup script gives you a much safer solution IMO. I know I may be splitting hairs. Any of the mentioned solutions are fine. But I am curious to see if something like this is not yet implemented in a more standard way. I was surprised to see that ``gethostbyname`` does not take an optional parameter for this task. -- https://mail.python.org/mailman/listinfo/python-list
