Thanks for trying. Unfortunately that doesn't seem to be the problem. I've got 2.5.2 installed (actually, not too sure how - I can't recall ever downloading python explicitly).

The problem seems to be some kind of mis-installation: the python system libraries aren't available. I don't know a lot about python, but I would have expected the system libraries to be part of a runtime installation. Plus nothing else seems to be broken. So probably, it's just telling python about the right path. But I did try to install the developer system, package manager fails to install it, so maybe there is a misconfiguration.