[Zope] Sub Class Question

[R. David Murray]

On Sat, 26 Aug 2000, Loren Stafford wrote:
>   def index_object(self):
>     if self.nextEventTime() is not None:
>         CatalogAware.index_object.im_func(self)
>         # see Python Reference Manual "The standard type hierarchy"
>         # for the built-in type im_func

I realize this is a Python and a not a Zope question, but
what is the difference between

  CatalogAware.index_object.im_func(self)

and

  CatalogAware.index_object(self)

?

--RDM