[ZODB-Dev] __setstate__

[Magnus Lyckå]

I have a number of classes that subclass Persistence.Persistent.

I want to upgrade attributes for some of them, and understand
that I should do this in __setstate__.

Can someone give an example of how to do this?

Do I need to call __setstate__ of a base class (Persistence.Persistent)
in my own __setstate__?

Should I do something about __getstate__ as well?

Are there any particular gotchas or better alternatives?


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Magnus Lyckå, Thinkware AB
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