[mod_python] Decoding POST requests

I'm getting POST request data from a form using request.read(). I note 
that blanks have been coded as +, + as %2B, etc. etc. How do I decode 
this? My goal is to use HTTPRequest to send POST data. How do I specify 
the coding? What alternatives are there?  Is there any reference to all 
of this?

-- 
Bob Gailer
510-978-4454