The NSO Developer Days presentation "Bring your Python to the NSO Circus" included code walks for two different Python labs. This is the lab package, so that you can try out implementing the lab yourself and in your own pace. During the presentation we used NSO 4.3.1, but later (and some earlier) versions should also work. The video of the presentation is here: Video Link : 16417 The slides are here: NSO Developer Days Developing a Service in Python presentation
