zodb3 is different from zodb which is already in the database
ports collection.
The ZODB package is a Python object persistence system. It
provides the Z Object Database separately from Zope so it
can be used in non-Zope related Python applications to
provide transparent object-oriented persistency.
PR: ports/46108
Submitted by: Martin Klaffenboeck <martin.klaffenboeck@gmx.at>
