Python is a programming language that lets you work more quickly and integrate your systems more effectively. PyQt is a Python wrapper for the C++ GUI framework Qt. Qt is a framework that uses the native widgets to draw its user interfaces.
PyOpenGL is a cross-platform open source Python binding to the standard OpenGL API. OpenGL is an application program interface that is used to define 2D and 3D computer graphics.
The article is written under Debian Linux. Packages that are required will be installed using powerful APT tool. If you are not a Linux user, however, don't worry. Since Python is a cross-platform language, Qt is a cross-platform framework, OpenGL is also a cross-platform interface, all the programs in this article also work for you. Just 'translate' the package installations according to your system and have fun.