[Zope-dev] ObjectManagers and their children

[Ty Sarna]

In article <382B335F.3160393A@digicool.com>,
Michel Pelletier  <michel@digicool.com> wrote:
> Hmm.. this sounds like more of a bug in ZClasses to me than OMs, but I
> see your point below, it's really about wanting to override __getattr__

Right.

> > It was easy to hack around this, but it sure would be nice if the
> > tree-ObjectManager *could* support getattr. The inability to override
> > __getattr_ on Persistent subclasses keeps biting me (and others, from
> > what I see on the lists) again and again. It would be *really* nice if
> > this could be fixed. I'd even be happy with something like "You can't
> > override __getattr_, but if you define __foo_getattr__, persistent will
> > try it before returning AttributeError".
> 
> I suspect jim would frown on another hook, we're trying to avoid as many
> new hooks as possible, especialy ones that may have a per hit or per
> traversal penalty.  Perhaps I haven't thought about your idea enough
> though.

Right. I'm just saying that if there does have to be a gross hack, I
could accept that. It would be nice if it were simply possible to
override __getattr__ in the usual manner. Or in an unusual manner, for
that matter :-). So long as there's some way, I'm happy :-)