I agree, that it is extremely useful, since before I knew Cython, I implemented some Python C extension modules by hand. That can become rather ugly and costs m

I agree, that it is extremely useful, since before I knew Cython, I implemented some Python C extension modules by hand. That can become rather ugly and costs much sweat. Today, I can use Cython. Or when I need even more speed, than I use Cython as wrapper-generator for a pure C module, that is still much, much easier to implement, as when I would have to do the wrapping work myself. Cython is really enormous useful and precious to me! Thank you for it!