How do I compare a DateTime column to now() in a query filter in SqlAlchemy?

Posted by Ben on Stack Overflow See other posts from Stack Overflow or by Ben
Published on 2010-06-09T21:58:01Z Indexed on 2010/06/09 22:02 UTC
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python

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datetime

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sqlalchemy

I have a table with an 'expires' datetime column. I want to find all the items that have an 'expires' date earlier than now.

I've tried

session.query(Item).filter(Item.expires < now())

but it doesn't return anything regardless of the dates in the table. I'm using PostgreSQL 8.4.

How do I do this comparison?

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