[Zope] running Zope 2.1.1 with python 2.x??

Hi, I needed to update my linux boxn running a older Zope installation with Zope 2.1.1. It uses some products that are no longer available. The distrubution now includes python 2.1.1 which does not seem to work for Zope 2.1.1 z2.py, line 216 import os, sys, getopt, string ImportError: No module named os Is there a way to get Zope 2.1x work with python 2.* or do I need to install a python 1..5.2 just for the old Zope? Thanks for any advice Jochen