python-string_utils fails to build: + sphinx-build docs/ html Running Sphinx v2.2.2 making output directory... done WARNING: html_static_path entry '_static' does not exist Theme error: sphinx_rtd_theme is no longer a hard dependency since version 1.4.0. Please install it manually.(pip install sphinx_rtd_theme) The spec has: %if 0%{?rhel} < 8 BuildRequires: python%{python3_pkgversion}-devel BuildRequires: python%{python3_pkgversion}-setuptools %else BuildRequires: python3-devel BuildRequires: python3-setuptools BuildRequires: python3-sphinx_rtd_theme %endif But 0%{?rhel} < 8 is true in Fedora (because 0 < 8), hence the dependency on python3-sphinx_rtd_theme is missing. This blocks the Python 3.9 rebuild.
I believe this should be fixed now. Please reopen the bug if you still have trouble. Thanks!