There's been a flurry of blog posts recently on the subject of Python testing, especially on Web application testing tools. I thought it would be a good idea to put up a Wiki page with the tools I know of, so that anybody who's interested in contributing to the "Python Testing Tools Taxonomy" can do so easily. Here is what I have so far. Feel free to modify it.
The PTTT page has moved here. Please update your bookmarks etc.