[pebers]

I agree, my vastly preferred option now is Python code and C code with cffi to glue them together. I find that much preferable to Cython which is basically a third language altogether (and IMO not an especially nice one, although that is a bit of a value judgement).

[dagw]

The huge advantage with cython compared to C is that it is trivial to call python libraries and get the same behaviour as you would in python.