[MacPorts] #63739: py39-pyobjc install fails as part of Certbot install

[MacPorts]

#63739: py39-pyobjc install fails as part of Certbot install
---------------------------+-------------------------
 Reporter:  laughingtiger  |      Owner:  (none)
     Type:  defect         |     Status:  new
 Priority:  Normal         |  Milestone:
Component:  ports          |    Version:  2.7.1
 Keywords:                 |       Port:  py39-pyobjc
---------------------------+-------------------------
 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.

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Ticket URL: <https://trac.macports.org/ticket/63739>
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