[Zope] upgrade from 2.7 to 2.10 restore backup

Hi I am in the process of moving my wiki to a new machine. The new machine is unbunto 7.10. I have zope2.10 up and running but when i try and restore the backup from 2.7 I get the following error Traceback (most recent call last): File "/usr/lib/zope2.10/bin/repozo.py", line 74, in <module> from ZODB.FileStorage import FileStorage File "/usr/lib/zope2.10/lib/python/ZODB/__init__.py", line 20, in <module> from persistent import TimeStamp File "/usr/lib/zope2.10/lib/python/persistent/__init__.py", line 19, in <module> from cPersistence import Persistent, GHOST, UPTODATE, CHANGED, STICKY ImportError: /usr/lib/zope2.10/lib/python/persistent/cPersistence.so: undefined symbol: Py_InitModule4 Chris