Installation issue on macos-latest (GitHub Actions)

[stephane-caron]

I'm facing an issue similar to https://github.com/mcmtroffaes/pycddlib/issues/49 in the CI of lpsolvers. This issue is specific to macos-latest images:

  Building wheel for pycddlib (setup.py): finished with status 'error'
        File "/Users/runner/work/lpsolvers/lpsolvers/.tox/py37-macos/lib/python3.7/site-packages/setuptools/installer.py", line 41, in _fetch_build_eggs
  Running setup.py clean for pycddlib
          replace_conflicting=True,
Failed to build pycddlib
        File "/Users/runner/work/lpsolvers/lpsolvers/.tox/py37-macos/lib/python3.7/site-packages/pkg_resources/__init__.py", line 830, in resolve
py37-macos: exit 1 (13.61 seconds) /Users/runner/work/lpsolvers/lpsolvers> python -I -m pip install 'cvxpy>=1.1.12' 'Cython>=3.0.0' 'pycddlib>=2.1.7' pid=1159
          req, best, replace_conflicting, env, installer, required_by, to_activate
  py37-macos: FAIL code 1 (14.39 seconds)
        File "/Users/runner/work/lpsolvers/lpsolvers/.tox/py37-macos/lib/python3.7/site-packages/pkg_resources/__init__.py", line 866, in _resolve_dist
  evaluation failed :( (14.52 seconds)
          req, ws, installer, replace_conflicting=replace_conflicting
        File "/Users/runner/work/lpsolvers/lpsolvers/.tox/py37-macos/lib/python3.7/site-packages/pkg_resources/__init__.py", line 1135, in best_match
          return self.obtain(req, installer)
        File "/Users/runner/work/lpsolvers/lpsolvers/.tox/py37-macos/lib/python3.7/site-packages/pkg_resources/__init__.py", line 1147, in obtain
          return installer(requirement)
        File "/Users/runner/work/lpsolvers/lpsolvers/.tox/py37-macos/lib/python3.7/site-packages/setuptools/installer.py", line 101, in _fetch_build_egg_no_warn
          wheel.install_as_egg(dist_location)
        File "/Users/runner/work/lpsolvers/lpsolvers/.tox/py37-macos/lib/python3.7/site-packages/setuptools/wheel.py", line 117, in install_as_egg
          self._install_as_egg(destination_eggdir, zf)
        File "/Users/runner/work/lpsolvers/lpsolvers/.tox/py37-macos/lib/python3.7/site-packages/setuptools/wheel.py", line 125, in _install_as_egg
          self._convert_metadata(zf, destination_eggdir, dist_info, egg_info)
        File "/Users/runner/work/lpsolvers/lpsolvers/.tox/py37-macos/lib/python3.7/site-packages/setuptools/wheel.py", line 171, in _convert_metadata
          os.rename(dist_info, egg_info)
      OSError: [Errno 66] Directory not empty: '/private/var/folders/3s/vfzpb5r51gs6y328rmlgzm7c0000gn/T/pip-install-9vl40nhf/pycddlib_837943d2f7f0470c99c8deb22784cedf/.eggs/Cython-3.0.4-py3.7-macosx-11.7-x86_64.egg/Cython-3.0.4.dist-info' -> '/private/var/folders/3s/vfzpb5r51gs6y328rmlgzm7c0000gn/T/pip-install-9vl40nhf/pycddlib_837943d2f7f0470c99c8deb22784cedf/.eggs/Cython-3.0.4-py3.7-macosx-11.7-x86_64.egg/EGG-INFO'

Installing Cython by itself (without pycddlib) on macos-latest works. It seems this error only occurs during pip install pycddlib.

(Also the issue is not specific to Python 3.7; it also happens e.g. on Python 3.9.)

[mcmtroffaes]

Thanks for the log. Yes, it looks like the same thing that was triggering #49 - sadly I never figured out what the problem was. Since the tests pass on macos on this repository, I'm at loss...

[mcmtroffaes]

I suppose this is no longer an issue; please do let me know if it is still a problem.

Note that on later versions of macos (or, at least those on github actions...) the homebrew include and lib folders must be passed explicitly when running pip (see #70).

env "CFLAGS=-I$(brew --prefix)/include -L$(brew --prefix)/lib" python -m pip install ...