A library for Event-Driven Web Apps (code.google.com)

I've been working on a Python library for web development. Don't worry, it's not another framework :) Instead, it lets you develop a "traditional" server side app with no JavaScript, but lets you do things like attach (server-side) callbacks to links, or track a "call stack" of page locations and the session data associated with each. I've been developing this approach for a few years (first in PHP, now Python), but I haven't run across anything similar. I'm very curious to know (1) if this approach appeals to anyone else, and (2) if there's another library or framework out there that implements something similar.