On 2018-08-01 21:07, Robert Bradshaw wrote:

Herein lies the primary difficulty with option #3. I have a hard time imagining what a low-level, minimal-ish "core" of Cython would be. What features would be omitted or simplifications would be made?

In addition, I'm concerned that putting a barrier somewhere in the middle of the existing Cython project, with one half in third-party and the other part of CPython, would significantly harm development velocity and make adoption and distribution more difficult.

+1

I don't think that distutils + setuptools is a good example to follow.