[Free-cad-development] External Python Script , Import Problem

[Kemal <alc...@gm...>]

Hey Guys,
I've no experience with any CAD program but I've to Programming 
something cause my new project.
My Project which is given me from my university as my Bachelor thesis 
and it demands from me to programming a python script which has to 
creates a Draft BSpline with given Vectors and converts it to a 3D model 
and finally export it as a Step file.

This is the code, I could create a cube and export it but when I try to 
import Draft, I get an Error
"File "/usr/lib/freecad/Mod/Draft/Draft.py", line 76, in <module>
     import FreeCAD, FreeCADGui, Part, math, sys, os, Image, Drawing, 
WorkingPlane
ImportError: No module named FreeCADGui"

freePath ='/usr/lib/freecad/lib'
import sys
sys.path.append(freePath)
from FreeCAD import *
import Part
from PyQt4 import QtGui
import Part
# THE MAIN FUNCTION
def main() :
     App.setActiveDocument("myDocu")
     App.ActiveDocument=App.getDocument("myDocu")
     App.ActiveDocument.addObject("Part::Box","Box")

     mycube = Part.makeBox(20,2,20)
     mycube = Part.cast_to_shape(mycube)
     App.ActiveDocument.recompute()
     __objs__ = []

     __objs__.append( App.ActiveDocument.getObject("Box"))
     Part.export(__objs__,"Box.step")


if __name__ == '__main__':
     main()

I hope one of you can help me a little.
Kemal

<http://www.dict.cc/englisch-deutsch/thesis.html>