Re: Pickling errors with tz.FixedOffsetTimezone

Il giorno ven, 16/01/2009 alle 13.22 +0100, Lawrence Oluyede ha scritto:
> I have a web application that uses memcached to store some data.
> Some of that data is retrieved through psycopg2 (2.0.8) and contains
> datetime instances.
> 
> Sometimes I get the following exception while trying to put objects
> into the memcached cache:
> "PicklingError: Can't pickle <class
> 'psycopg2.tz.FixedOffsetTimezone'>: it's not the same object as
> psycopg2.tz.FixedOffsetTimezone"

Once I was bitten by a very similar error. The module was loaded two
times from different paths and instances created with the first copy of
the module could not be pickled by the code that had the second copy
available. I didn't dig too much to understand what was happening
because we were in a hurry and simply making sure the was a single copy
of the module solved the problem.

This can help but maybe not. I am sorry.

federico

-- 
Federico Di Gregorio                         http://people.initd.org/fog
Debian GNU/Linux Developer                                [email protected]
INIT.D Developer                                           fog-NGVKUo/i/[email protected]
                           There's no certainty - only opportunity. -- V

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