This build is based on the fork at https://github.com/commontk/PythonQt, as is required for use with paraview (for which this SlackBuild is intended). The source tarball is constructed from entry a081f9d6aa2f0f8df093e2313970689014b59db9 in the git log. The original site is at http://pythonqt.sourceforge.net, where additional documentation is available.