wxPython is a GUI toolkit for the Python programming language. It allows Python programmers to create programs with a robust, highly functional graphical user interface simply and easily. It is implemented as a Python extension module (native code) that wraps the popular wxWidgets cross platform GUI library which is written in C++. If you want support for gnomeprint pass GNOMEPRINT=yes to the script. This will require libgnomeprint and libgnomeprintui, both available from SlackBuilds.org. Another optional dependency is libmspack, which is used by the CHM help viewer. wxPython is a port of wxWidgets and as such compatible to other ports like wxGTK and wxX11.