[ZODB-Dev] No module named Persistence

[Ross Boylan]

The IPC10 presentation says
#Works as a side-effect of importing ZODB above
from Persistence import Persistent

I tried that (with the indicate other imports first).  It led to a "No 
module" error.

I tried commenting out the line, since the comment could be interpreted 
to mean that importing ZODB already does what's necessary.  But there 
was no "Persistent" class defined I could use.

I tried from Globals import Persistent, as suggested in a 1998 posting.  
This produced "No module named  Globals."

Suggestions?

Ross Boylan