I use Z3 Page Templates for things non-Zope and have run into
A condition like <tal:block condition="object/non_existing_attr|
nothing"> does not evaluate to false (nothing) but raises NameError.
Digging into zope.tales.expressions, I found that simpleTraverse
raises NameError in case the object at hand does not implement
__getitem__. Well, my objects don't and I am screwed as a result ;-)
Now I am wondering if simpleTraverse shouldn't raise AttributeError
instead. I run this by the list because there may be a non-obvious
(to me) reason to raise NameError, precisely because it is *not*
included in Undefs.
So, is there or would this qualify as a bug? There is a test that
seems to point to some use with regard to namespaces, but I don't see
how this wouldn't work just as well with AttributeError.
Anything that happens, happens. --Douglas Adams
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