This is slightly off topic as this module doesn’t require Blender. But it might be of interest to some of you.
SDXF is a Python library to generate DXF files. DXF is an abbreviation of Data Exchange File, a vector graphics file format. It is supported by virtually all CAD products (such as AutoCAD, Blender, 3Dstudio, Maya,Vectorworks…) and vector drawing programs (such as Illustrator, Flash, …).
SDXF can generate complex CAD drawings (dxf format) with all kind of entities (such as 3DFace, Arc, Insert, Circle, Line, Mtext, Point, Polyline, Rectangle (can be filled), Solid & Text). They can be structured with Layers, Blocks, Linetypes, Text styles and Views.
Example
import sdxf
d=sdxf.Drawing()
d.append(sdxf.Text('Hello World!',point=(3,0,1)))
d.append(sdxf.Line(points=[(0,0,0),(1,1,1)]))
d.saveas('hello_world.dxf')
For more info: http://www.stani.be/python/sdxf/blog