I was able to resolve the error by explicitly naming the class in the
dictionary lookup inside __new__:
if candid in CandidateAuto.instances:
return candid
I'm curious why this is necessary though. From our earlier dicussions
(and from other reading), I thought that by declaring a static class
attribute, that it would automatically become available to an
instances of that class. My impression was that that a method
searches for the variables/attributes in it's local scope, and failing
to find it there, would bubble up to the class level and find the
static variable there.
Is that not correct?
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