Aurora Application Server is a new Python Web Application Server and Framework. The main goal of the project is to provide the developer with a complete set of tools to speed up the application development process. See project wiki for more information.
XUProxy is an extensible multi-protocol proxy based on the Twisted framework. It supports multiple protocol plugins (currently only HTTP), and multiple "filter" plugins for things like logging, caching, and Proxomitron-compatible ad filtering.
now here: https://github.com/plastex/plastex
plasTeX is a Python-based LaTeX document processing framework. It gives DOM-like access to a LaTeX document, as well as the ability to generate mulitple output formats (e.g. HTML, DocBook, tBook, etc.).