Fix Python 3.13

[icemac]

No description provided.

[icemac]

OSError: [Errno 66] Directory not empty: '/private/var/folders/24/8k48jl6d249_n_qfxwsl6xvm0000gn/T/pip-install-3699bqbr/persistent_4e916ef21254480285dfe2b13467ab52/.eggs/cffi-1.17.0.dev0-py3.13-macosx-10.9-universal2.egg/cffi-1.17.0.dev0.dist-info' -> '/private/var/folders/24/8k48jl6d249_n_qfxwsl6xvm0000gn/T/pip-install-3699bqbr/persistent_4e916ef21254480285dfe2b13467ab52/.eggs/cffi-1.17.0.dev0-py3.13-macosx-10.9-universal2.egg/EGG-INFO' is back 😞 – I have no idea how to fix this.

[dataflake]

Probably zopefoundation/meta#181. The only fix is to have C-based dependencies already available as pre-built wheels. As soon as the build process attempts to build a dependency (in this case persistent) that in itself has a C dependency that it wants to build you're toast.

This is a combination of issues in zc.buildout and setuptools.

[dataflake]

P.S.: I would consider both zc.buildout and setuptools as essentially unmaintained at this point. The issues are only going to get worse.

[icemac]

Closing because of conflicts.