Using Cython to improve speed during dxf import and processing

[Chrisko]

Hi there,

anyone has some experience / knowledge how to integrate cython to improve speed. I am thinking on adding this functionality since the import can take very long with big files. However since this looks a bit complex, i am not that sure how to do it, so if there is one who is willing to support i think this would be worth to implement at some points.

regards

Christian