py39-pyobjc install fails as part of Certbot install

[laughingtiger]

When installing Certbot under macOS 12.0.1 (Mac mini (Late 2014)) the py39-pyobjc install fails with this...

:info:build Installing 'pyobjc-framework-libdispatch' using '/opt/local/Library/Frameworks/Python.framework/Versions/3.9/bin/python3.9' :debug:build Executing proc-post-org.macports.build-build-0 :debug:build system -W /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_python_py-pyobjc/py39-pyobjc/work/pyobjc-7.3/docs: make -j4 html :info:build sphinx-build-3.9 -b html -d _build/doctrees . _build/html :info:build Running Sphinx v4.2.0 :info:build WARNING: while setting up extension sphinx.addnodes: node class 'meta' is already registered, its visitors will be overridden :info:build Extension error: :info:build Could not import extension sphinx.directives.patches (exception: cannot import name 'html' from 'docutils.parsers.rst.directives' (/opt/local/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/docutils/parsers/rst/directives/init.py)) :info:build make: * [html] Error 2 :info:build Command failed: make -j4 html :info:build Exit code: 2 :error:build Failed to build py39-pyobjc: command execution failed :debug:build Error code: NONE :debug:build Backtrace: command execution failed :debug:build while executing :debug:build "$post $targetname" :error:build See /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_python_py-pyobjc/py39-pyobjc/main.log for details.