[Python-Dev] __getattr__ and new style classes

Greg Ewing greg.ewing at canterbury.ac.nz
Fri Oct 10 02:37:32 CEST 2008

Amaury Forgeot d'Arc wrote:

> But this is already the case, and the reason why there are three
> variable to describe an exception: type, value and traceback.

Yes, but you only get one object for the value, which means
at least allocating a tuple if you want to be able to report
something like "AttributeError: 'fooblat' object has no
attribute 'asdf'".

I'm thinking about a C api that would let you supply multiple
pre-existing values without having to allocate anything.
Not sure exactly how it would work, though.

Also, what about Py3? Has the type/value separation gone away
completely, or is it still there at the C level?


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