Is it possible to traverse network using Python?

[TimDine]

I'd like to do some network traversal and calculations.  The context is chopping up my network into smaller pieces so that I can make simpler schematics.  

I've worked with these traversal methods using arcobjects in dot net, traversal methods like IForwardStar Interface  I'd rather not separate from python for this project if I don't have to.  Does anyone have a suggestion of how these could be accessed? 

I would also be open to other suggestions of samples to navigate through the features like a digraph / tree?  That is my next plan to attempt.