Description of problem: python-mongoengine is failing to build from source against Python 3.8[0]. It seems to be due to sphinx_rtd_theme missing: + PYTHONPATH=/builddir/build/BUILD/mongoengine-0.15.3 + make -C docs SPHINXBUILD=sphinx-build-3 html make: Entering directory '/builddir/build/BUILD/mongoengine-0.15.3/docs' sphinx-build-3 -b html -d _build/doctrees . _build/html Running Sphinx v2.0.1 BUILDSTDERR: Configuration error: BUILDSTDERR: There is a programmable error in your configuration file: BUILDSTDERR: Traceback (most recent call last): BUILDSTDERR: File "/usr/lib/python3.8/site-packages/sphinx/config.py", line 361, in eval_config_file BUILDSTDERR: execfile_(filename, namespace) BUILDSTDERR: File "/usr/lib/python3.8/site-packages/sphinx/util/pycompat.py", line 86, in execfile_ BUILDSTDERR: exec(code, _globals) BUILDSTDERR: File "/builddir/build/BUILD/mongoengine-0.15.3/docs/conf.py", line 16, in <module> BUILDSTDERR: import sphinx_rtd_theme BUILDSTDERR: ModuleNotFoundError: No module named 'sphinx_rtd_theme' Additional info: [0] https://copr-be.cloud.fedoraproject.org/results/@python/python3.8/fedora-rawhide-x86_64/00912219-python-mongoengine/build.log.gz
This also fails on Rawhide with Python 3.7.