Zope 2.6 and Python 2.2

Why doesn't Zope 2.6 work on Python 2.2? What changed in Python 2.2 that made it incompatible, or, what is broken in Zope to make it incompatible?

I want to install it and learn something about it, but Jaguar has Python 2.2, not 2.1. So does a Linux server I have access to.

Written on December 7, 2002