Is this via ctypes, or "real" support in much the same as how CPython would behave?
I ask because this is one of the features that I've been waiting (impatiently) for - I've run some Flask projects using PyPy and gunicorn, and love how fast it goes, but really want to be able to use the rest of my codebase, which unfortunately does rely on some C (and Cython) extensions. (: