turbogears widgets are worth a look
I've never been one to jump on a bandwagon and here's another case. The blogsphere says I should use Rails but I'd prefer a framework based on Python. The week Python's creator has come out in favor of Django I decide to jump on TurboGears. TurboGears is in beta at the moment but it's a mega-framework around a suite of existing python components so pretty usable. All of these frameworks you will be productive in a day or so but the problem is always how do you extend them. That's what I like about TurboGears widgets.
A widget is a type of component that requires minimal installation and takes care of it's own dependencies. All you have to do is add
The turbogears documentation is in a bit of chaos at the moment but if you have Python and ez_install here's a set of rough notes I made on how to install widgets on your box. Otherwise the see the full installation instructions.