Webcam viewer/capture program similar to the Photobooth program in Mac OS X. Written in python using GStreamer with EffectTV plugins, you can view your webcam and take pictures filtered through your choice of effects.
PennAve is a dynamic photo gallery software written in Python and designed for use alongside F-Spot. It makes heavy use of XML and XSLT for ease of presentation modification and sharing of information with other users, web sites, and programs.