I am setting up a new development environment and have discovered that
clearsilver is not working out of the box in jaunty:

https://bugs.launchpad.net/ubuntu/+source/clearsilver/+bug/386970

I am using mod_python which is looking at python 2.6 and clearsilver is not
compiled for python2.6 by the ubuntu package system. Has anyone worked through
this? I can probably either find a back port for mod_python or install
clearsilver from source...