@TutorialDoctor thanks that will help a lot. I have my default interpruter set at 2.7 because that the closest to what they use on learn python the hard way. I'll have to play around with it some more.
If we used something wiki-like that would probably work best. Not sure if the infrastructure @ccc has set up is good for that purpose, or if a Wikimedia-based site would be better.
As for me, I'm happy to put my shoulder to the wheel. I suspect to start with I'd just be proofreading and editing. But that's a valuable role, too. (I've spent a lot of happy weeks in Poughkeepsie, NY writing technical books (what we call Redbooks) and more time editing others'.)
I think I'd learn quite a bit in the process.
In other news I see Rocket have ported Python 2.7.x to z/OS so I might be absorbed with trying that on my home system. :-)