[Tutor] Retrieving arp of gateway

[Adam Shand]

Hi.

I'm playing around with writing my first Python network program and am 
trying to figure out a platform neutral way to get the MAC of my 
gateway.  It's fairly easy to do this with popen's to shell code but you 
end up having to look for what OS is running and then run slightly 
different commands for each OS.

Eg. on Linux

netstat = os.popen('netstat -rn | grep ^0.0.0.0').readlines()
arp = os.popen('arp %s' % netstat[0].split()[1]).readlines()
address = arp[1].split()[2]

Is there a python native way to query a computers arp table?  I haven't 
been able to find much on network programming with either on python.org 
or via google.

Thanks,
Adam.