[Zope] How to submit a patch

[Gregory Dudek]

   Hi. I am fairly new to zope (and python) and have a question regarding 
how
patches to products are maintained.  In particular, is there are 
preferred protocol
for submitting a patch to products where the original author is not 
available?
   For example, i applied fixed to a couple of products (KebasData and 
RoboCage).
I tried mailing the RoboCage author but didn't get a reply back (after 2 
weeks). Now I can either
forget it, post a new Product derived from the old, post a stand-alone 
patch/diff,
or a number of other options.
   (RoboCage generates random text to fool/disrupt email-scraping 
robots -- very simple but sufficient.
        [You know, those web robots that automatically search for email 
addresses to provide to spammers.]
   See it in action at <http://abatonix.dyn.dhs.org/about> ).

What do zopistas usually do? Is there an approved protocol?

Greg