I started this project at 2002, never finished.
I just put the source codes, and the project doesn't run.
GUI : Tkinter, wxPython Matrix process : NumPy ?
It is consisted of processes as follows.
.. Preprocess : Geometry, gravity load (dead/live) input .. Analysis : Simple matrix process .. Postprocess : Section design, H beam selection, Bending Moment Diagram, Sheer Force Diagram
You can use it freely.