Pickling slotted instances

[David Mertz, Ph.D.]

|Instances using __slots__ can't be pickled - is there a fundemental
|reason why this is so, or is it simply yet to be implemented?

Plug of the week:  My gnosis.xml.pickle package will handle instances
that have __slots__ (even those lacking __getstate__()/__setstate__()).
While the package does "the right thing" IMO, this particular bit isn't
guaranteed to remain the same, depending on what future versions of
[c]Pickle decide to do.  Then again, none of the other bits are
-guaranteed- to remain the same in later versions either. :-)

Feel free to use it, steal the code (it's public domain), just look for
inspiration, etc:

    http://gnosis.cx/download/Gnosis_Utils-current.tar.gz


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