Hi Victor,

On 18 August 2016 at 03:17, Victor Stinner <victor.stinner@gmail.com> wrote:

I made a quick test on PyPy: the creation of the virtual environment fails when trying to compile a Cython extension to install bzr.

Indeed, bzr cannot be installed on PyPy because it uses Cython in a strange way: it declares and directly pokes inside PyListObjects from a .pyx file. But note that bzr (seems to) have systematically a pure Python version of all its .pyx files. The fix might be as simple as changing setup.py to check for PyPy, and in this case do nothing in add_pyrex_extension(). According to https://answers.launchpad.net/bzr/+faq/703 it should work without any Cython code too.

A bientôt,

Armin.