Switch to cibuildwheel for binary wheels?

[icemac]

I came across this blog post https://fruch.github.io/2020/12/29/github-actions describing that they are using https://github.com/joerick/cibuildwheel to build binary wheels. Maybe this could ease our setup, too.

[dataflake]

I just came across something else from Hanno that I had completely forgotten about: https://github.com/hannosch/zope_wheels

This uses a Docker container specifically made for building manylinux wheels (https://quay.io/repository/pypa/manylinux1_x86_64) to build wheels in bulk from the last tag on a list of repositories. It's Linux only, no Windows, though.

[dataflake]

@icemac This can be closed with the GHA-based build stretegy, right?

[icemac]

No, we could still use cibuildwheel, especially as it has support for e. E. macOS Apple Silicon (I saw in a PR in a repository (I do not remember which one) that adding the wheels for this M1 chip was just adding a parameter to an env variable).
I think it could make building the binary wheels easier but I never tried it.

[icemac]

cibuildwheel already has support for Python 3.10. We are using https://github.com/matthew-brett/multibuild to install missing Python versions on AppVeyor. As it uses https://www.python.org/ftp/python to download the needed Python version, it has no chance as there is no Python 3.10 version uploaded there, yet.

[henryiii]

FYI, you have to use the 2.0 beta (should be made into a final release in about a week pypa/cibuildwheel#657) and you have to enable CIBW_PRERELEASE_PYTHONS, because the API is not declared stable yet (actually, 3.10b4, which just came out and is about to land in cibuildwheel, just waiting on manylinux), is I think supposed to be the first ABI stable release.

[icemac]

I have a prototype here: zopefoundation/ExtensionClass#39 – at least it looks simpler than the currently existing version and it includes Windows wheels in GHA.