[mod_python] publisher - variable processing

Is there a way to process data passed in the URL without using the  
"normal" CGI method using publisher? ie,

www.domain.com/script?var1=foo&var2=blah - This I can use req.form  
for the data. Say I want to use the following:

www.domain.com/script/foo/blah

I don't mind parsing the data myself, but how can I get the string "/ 
foo/blah" ?

I am sure its possible creating a different handler, but is it  
possible to do so using .publisher?

Thanks!

Peter