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From: James Mills <prologic@shortcircuit.net.au>
Date: Wed, 4 May 2011 12:29:53 +1000
Subject: Re: importing class objects from a pickled file
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On Wed, May 4, 2011 at 10:18 AM, Catherine Moroney
<Catherine.M.Moroney@jpl.nasa.gov> wrote:
> Am I explaining myself properly? =C2=A0Why doesn't the code that loads th=
e
> object from the pickled file work unless I am sitting in the same directo=
ry?
> =C2=A0 The code that writes the pickled file has the statement
> "from Y.X import X" statement" at the top, as does the reading code, but
> even though that import statement succeeds, the read still fails with the
> import error.

pickled objects won't work this way unless you "customize" the
way in which your class gets serialized.

See: http://docs.python.org/library/pickle.html#the-pickle-protocol

Any time you want to unpickle a user class, that class must be available.

I suggest serializing to a more common format (say JSON) and re-create
your class with the data.

cheers
James

--=20
-- James Mills
--
-- "Problems are solved by method"