Andreas Jung wrote at 2008-1-16 08:21 +0100:
>I have running Zope 2 application using SQLAlchemy 0.3.11/z3c.sqlalchemy 
>1.0.11 and needs to be migrated to SA 0.4/z3c.sqlalchemy 1.1. For the 
>migration period I installed all four versions as multi-version eggs.
>For debugging purposes, my lib/python/Zope2/Startup/
> ....
>This works nicely. The correct modules are imported properly.
>Later during the startup phase while initializing a product called 
>"MedienDB" the related code is doing the following import:
>from z3c.sqlalchemy.interfaces import ISQLAlchemyWrapper
>This import fails with
>portError: 'No module named sqlalchemy.interfaces'
>> /local/HRS2/Devel/ajung/HaufeCMS/lib/python/mediendb/
>-> from z3c.sqlalchemy.interfaces import ISQLAlchemyWrapper
>although the same import worked much earlier?
>Any ideas? As said: this issue only occurs with multi-version eggs.

Zope is *not* running in the context of "zopectl".
Instead, it is running in its own process -- imports done in "zopectl"
do not affect this process (Zope).

You need your "pkg_require" in Zope proper (not in "zopectl").

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