PyVibPTn has an extensive pile of documentation (some pages easier to read then others), so consider this a roadmap of where to start or a TL;DR version (if you’re hip like the youths). The biggest thing to note at this stage is that the PyVibPTn package lives inside a larger one called Psience, and for the purpose of documentation it is always refered to as VPT2.
If you’re looking for download help try here
Here is a nice flow-chart of the code structure:
But if that doesn’t mean much to you, there is also this pretty good intro tutorial to this package. Or if you feel like jumping right in, this might be where you want to start.
P.S. you might notice this site looks a lot like the Psience documentation site… Does that give you a hint who our group website designer was?