This looks very nice indeed. The main thing that will interfere with usability for me as a non-C guru is the lack of thread support. But I am really grateful

This looks very nice indeed. The main thing that will interfere with usability for me as a non-C guru is the lack of thread support. But I am really grateful for the effort since my "spiritual home" among programming languages is definitely the dynamic languages, yet I appreciate the need and beauty of C in many instances when performance is necessary. libcello's apparent optional static typing (the "var") is really nice -- it's one of the wonderful things about using Cython alongside Python.