The Zope book chapter "Advanced Zope Scripting" shows a method with
an arg list like this:
 
   def makeThumbnail(context, original_id, size=128):
           
When I create a method with the "context" arg, Zope complains
that the parameter "context" was omitted from the request.
 
THE REAL QUESTION:::
 
Using a Python Method, it's easy to get the variables
"context"  and "travers_subpath."  How do I get these two
values when using an External Method.
 
Thanks for any assistance.
Tom