[Zope] Getting an object from id

[Etienne Labuschagne]

Hi there

If I have the id of an object, how can I get the actual object in a Python
Method?  I have tried the following:

o = getattr(self, "FooImage")

This causes an AttributeError type with value validate.  This probably mean
that this way of aquiring an object is not available in Python Methods, but
only in external Python Methods.  I would prefer to use a Python Method and
not an external method.

B.T.W. I know that o=self.FooImage will work, but I want to use a parameter
containing the id to get the object, eg. o = getattr(self, id).

Thanks
Etienne