[issue13290] get vars for object with __slots__
Michele Orrù
report at bugs.python.org
Wed Oct 3 18:07:13 CEST 2012
Michele Orrù added the comment:
> The patch does not seem to walk the mro to look for slots in base
> classes. Also, an instance with a __dict__ attribute may also have
>attributes stored in slots.
Well, what I am doing is more or less the equivalent of
return object.__slots__ if hasattr(object, '__slots') else object.__dict__
and this is coherent with the updated documentation. The one you proposed is an alternative behavior; am I supposed to follow that one?
>
> BTW, copyreg._slotnames(cls) properly calculates the slot names for cls and tries to cache them as cls.__slotnames__. Pickle does the equivalent of
>
> try:
> slotnames = cls.__slotnames__
> except AttributeError:
> slotnames = copyreg._slotnames(cls)
thanks! I'll take into account.
--
ù
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