Fix RTD problems

[stscirij]

Processing /home/docs/checkouts/readthedocs.org/user_builds/calcos/checkouts/195 Installing build dependencies: started Installing build dependencies: finished with status 'done' Getting requirements to build wheel: started Getting requirements to build wheel: finished with status 'done' ERROR: Exception: Traceback (most recent call last): File "/home/docs/checkouts/readthedocs.org/user_builds/calcos/envs/195/lib/python3.7/site-packages/pip/_internal/cli/base_command.py", line 164, in exc_logging_wrapper status = run_func(*args) File "/home/docs/checkouts/readthedocs.org/user_builds/calcos/envs/195/lib/python3.7/site-packages/pip/_internal/cli/req_command.py", line 205, in wrapper return func(self, options, args) File "/home/docs/checkouts/readthedocs.org/user_builds/calcos/envs/195/lib/python3.7/site-packages/pip/_internal/commands/install.py", line 339, in run reqs, check_supported_wheels=not options.target_dir File "/home/docs/checkouts/readthedocs.org/user_builds/calcos/envs/195/lib/python3.7/site-packages/pip/_internal/resolution/resolvelib/resolver.py", line 73, in resolve collected = self.factory.collect_root_requirements(root_reqs) File "/home/docs/checkouts/readthedocs.org/user_builds/calcos/envs/195/lib/python3.7/site-packages/pip/_internal/resolution/resolvelib/factory.py", line 470, in collect_root_requirements requested_extras=(), File "/home/docs/checkouts/readthedocs.org/user_builds/calcos/envs/195/lib/python3.7/site-packages/pip/_internal/resolution/resolvelib/factory.py", line 435, in _make_requirement_from_install_req version=None, File "/home/docs/checkouts/readthedocs.org/user_builds/calcos/envs/195/lib/python3.7/site-packages/pip/_internal/resolution/resolvelib/factory.py", line 206, in _make_candidate_from_link version=version, File "/home/docs/checkouts/readthedocs.org/user_builds/calcos/envs/195/lib/python3.7/site-packages/pip/_internal/resolution/resolvelib/candidates.py", line 287, in init version=version, File "/home/docs/checkouts/readthedocs.org/user_builds/calcos/envs/195/lib/python3.7/site-packages/pip/_internal/resolution/resolvelib/candidates.py", line 156, in init self.dist = self._prepare() File "/home/docs/checkouts/readthedocs.org/user_builds/calcos/envs/195/lib/python3.7/site-packages/pip/_internal/resolution/resolvelib/candidates.py", line 225, in _prepare dist = self._prepare_distribution() File "/home/docs/checkouts/readthedocs.org/user_builds/calcos/envs/195/lib/python3.7/site-packages/pip/_internal/resolution/resolvelib/candidates.py", line 292, in _prepare_distribution return preparer.prepare_linked_requirement(self._ireq, parallel_builds=True) File "/home/docs/checkouts/readthedocs.org/user_builds/calcos/envs/195/lib/python3.7/site-packages/pip/_internal/operations/prepare.py", line 482, in prepare_linked_requirement return self._prepare_linked_requirement(req, parallel_builds) File "/home/docs/checkouts/readthedocs.org/user_builds/calcos/envs/195/lib/python3.7/site-packages/pip/_internal/operations/prepare.py", line 550, in _prepare_linked_requirement self.build_isolation, File "/home/docs/checkouts/readthedocs.org/user_builds/calcos/envs/195/lib/python3.7/site-packages/pip/_internal/operations/prepare.py", line 58, in _get_prepared_distribution abstract_dist.prepare_distribution_metadata(finder, build_isolation) File "/home/docs/checkouts/readthedocs.org/user_builds/calcos/envs/195/lib/python3.7/site-packages/pip/_internal/distributions/sdist.py", line 47, in prepare_distribution_metadata self._install_build_reqs(finder) File "/home/docs/checkouts/readthedocs.org/user_builds/calcos/envs/195/lib/python3.7/site-packages/pip/_internal/distributions/sdist.py", line 106, in _install_build_reqs build_reqs = self._get_build_requires_wheel() File "/home/docs/checkouts/readthedocs.org/user_builds/calcos/envs/195/lib/python3.7/site-packages/pip/_internal/distributions/sdist.py", line 83, in _get_build_requires_wheel return backend.get_requires_for_build_wheel() File "/home/docs/checkouts/readthedocs.org/user_builds/calcos/envs/195/lib/python3.7/site-packages/pip/_vendor/pep517/wrappers.py", line 173, in get_requires_for_build_wheel 'config_settings': config_settings File "/home/docs/checkouts/readthedocs.org/user_builds/calcos/envs/195/lib/python3.7/site-packages/pip/_vendor/pep517/wrappers.py", line 332, in _call_hook raise BackendUnavailable(data.get('traceback', '')) pip._vendor.pep517.wrappers.BackendUnavailable: Traceback (most recent call last): File "/home/docs/checkouts/readthedocs.org/user_builds/calcos/envs/195/lib/python3.7/site-packages/pip/_vendor/pep517/in_process/_in_process.py", line 89, in _build_backend obj = import_module(mod_path) File "/home/docs/checkouts/readthedocs.org/user_builds/calcos/envs/195/lib/python3.7/importlib/init.py", line 127, in import_module return _bootstrap._gcd_import(name[level:], package, level) File "", line 1006, in _gcd_import File "", line 983, in _find_and_load File "", line 953, in _find_and_load_unlocked File "", line 219, in _call_with_frames_removed File "", line 1006, in _gcd_import File "", line 983, in _find_and_load File "", line 967, in _find_and_load_unlocked File "", line 677, in _load_unlocked File "", line 728, in exec_module File "", line 219, in _call_with_frames_removed File "/home/docs/.pyenv/versions/3.7.9/lib/python3.7/site-packages/setuptools/init.py", line 6, in import distutils.core File "/home/docs/checkouts/readthedocs.org/user_builds/calcos/envs/195/lib/python3.7/site-packages/_distutils_hack/init.py", line 92, in create_module return importlib.import_module('setuptools._distutils') File "/home/docs/checkouts/readthedocs.org/user_builds/calcos/envs/195/lib/python3.7/importlib/init.py", line 127, in import_module return _bootstrap._gcd_import(name[level:], package, level) ModuleNotFoundError: No module named 'setuptools._distutils'

[stscirij]

fixed in #204