import rhinoscriptsyntax as rs

allobjs = rs.AllObjects()

# draw a closed curve in Rhino
rs.Command("_Curve Degree=2 -10,70,0 0,100,0 15,90,0 20,20,0 60,30,0 90,0,0 0,0,0 Close _Enter")
crv = rs.FirstObject(select=True)

# extrude the curve
rs.Command("_ExtrudeCrv Solid=No 100 _Enter")
srf = rs.FirstObject(select=True)

# use handles to change NURBS shape

# create contourlines in Z-direction and extrude them (floor plates)
rs.Command("Contour 0,0,0 0,0,1 10 _Enter")
rs.Command("_ExtrudeCrv Solid=Yes 1 _Enter")

# create contourlines in X-direction and use the pipe command (vertical support)
rs.SelectObject(srf)
rs.Command("Contour 0,0,0 1,0,0 2 _Enter")
rs.Command("Pipe 0.2 _Enter")