I found the error. I didn't know that I have to turn off debugging for sessions to work. I simply omitted the line to turn it off when I was re-typing the example. Damn, that info must be in bold in there.
-- You received this message because you are subscribed to the Google Groups "web.py" group. To post to this group, send email to webpy@googlegroups.com. To unsubscribe from this group, send email to webpy+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/webpy?hl=en.