Hey, I've been playing with RobotPy quite a bit lately, and one thing you'll probably note is that debugging scripts is a bit annoying. Ok, more than just a bit annoying... haha. Anyways, here's a great solution to solve that problem!
Winpdb is a GPL remote debugger that works pretty well from what I can see so far, and gives you full source debugging over the network. I've modified it a bit so that it works on RobotPy. Check it out:
http://www.virtualroadside.com/blog/...py-on-vxworks/
Note: Contrary to its name, Winpdb is cross platform, it just requires wxPython to run.