What are some alternatives?
When comparing CherryPy and Phalcon, you can also consider the following products
Flask - a microframework for Python based on Werkzeug, Jinja 2 and good intentions.
Laravel - A PHP Framework For Web Artisans
Django - The Web framework for perfectionists with deadlines
Symfony - A PHP full-stack web framework
web2py - Web2py is an open source web application framework.
CodeIgniter - A Fully Baked PHP Framework