Armin Ronacher has released Werkzeug 0.1 a little while ago. As the website for Werkzeug says: “Werkzeug is a collection of various utilities for WSGI applications. It features request and response objects as well as a powerful url dispatcher and a debugging system.”
I have it on my todo list to convert my current CherryPy environment to Werkzeug as a proof of concept and see which one of the two I prefer and will ultimately use for my Japanese-Dutch dictionary project.