[Zope] Product Update Strategy

[Roché Compaan]

I have multiple installations of a TTW product that stores it data in the
ZODB.
I do not have direct access to all the installations and need to send
clients
an update script to update some of the methods accross all installations.

I thought one way of doing it is to write a python script that imports the
ZODB
and upload method contents from files distributed with the script.

Any other ideas?

Roché