Find interface associated with default route?

[Neal Becker]

Fredrik Lundh wrote:

> Neal Becker wrote:
> 
>> Any thoughts on howto find the interface associated with the default
>> route (this is on linux)?
> 
> are you sure you sent this to the right newsgroup ?
> 
> is this what you want ?
> 
>  >>> import os
>  >>> for line in os.popen("/sbin/route"):
> ...     line = line.split()
> ...     if line[0] == "default":
> ...             print line[-1]
> ...
> eth0
> 

Well, I was hoping for something more 'elegant' - meaning relying on library
calls rather than calling programs.  Obviously, /sbin/route has some
library calls to obtain this info, and maybe python has a wrapper for it.

Yes, this is the right group - I want a python solution.