An easy and flexible mathematical programming environment for Python.
PyMathProg is a Python reincarnation of AMPL and GNU MathProg modeling language, implemented in pure Python, connecting to GLPK via swiglpk. Create, optimize, report, change and re-optimize your model with Python, easily integrate database, plotting, etc.
Kubos is a CAD application which is in an early stage of development.
A derivative version called Kubos Schript can be used for creating scripted objects.
For installation instructions see https://sourceforge.net/p/kubos/wiki/Installation/