[Zope] restrictedTraverse versus unrestrictedTraverse versus simpler notations

[Dieter Maurer]

nwingfield at che-llp.com wrote at 2003-9-15 14:38 -0400:
 > ...
 > Q2.  In product code, what is the value in using
 > 'self.restrictedTraverse(id)' or 'self.unrestrictedTraverse(id)' versus
 > simpler notation, such as 'self[id]' or 'getattr(self, id)' ?

In addition, what others already said:

   [un]restrictedTraverse is very similar to how ZPublisher
   traverses the object hierarchy along the URL.
   Especially, it uses "__bobo_traverse__" when it is defined.

   If "__bobo_traverse__" is not defined and "getattr" cannot
   resolve "id", it uses "getitem" (if it is available).

   "restrictedTraverse" is what TALES "path" expressions use.


Dieter