At Easterau,
I haven't done any python scripting testing, but was more concerned about the content and if it transferred over to P8 without problems...and so far so good.
I don't use a whole lot of Python but the some that I do use I manually stuck into a P8 folder and used from there. Didn't even try to use Python from PoserPro or P7 so I can't answer to that.

Hope this helps.

Comitted to excellence through art.