[Zope-dev] Bug in OFS/Traversable.py

[David Alexander Ranvig]

The unrestrictedTraverse method creates a fake REQUEST "object"
(really a dictionary) and sends this to a __bobo_traverse__. If this
__bobo_traverse__ uses the object properties of the REQUEST object, or
needs the real REQUEST object it will fail.

If __bobo_traverse__ raises an exception while being called from the
unrestrictedTraverse method, which may easily happen if the author of
the __bobo_traverse__ method expected a real REQUEST object,
unrestrictedTraverse just raises the Unauthorized exception.  This is
extremely confusing.

I would much appreciate that the _real_ REQUEST object was sent to my
__bobo_traverse__, and that the exception propagated is a little more
informative.

I have worked around this problem like this,

    def __bobo_traverse__(self, REQUEST, name):
        if type(REQUEST) == type({}):
            # do something
        else:
            # do what I really wanted to do

but would appreciate if the problem did not exist :-)

-- 
Regards David.