jupyter notebook fails

[agl2015]

Under the latest version of macOS Sonoma (14.3.1) running on a late 2020 15" MacBook Pro, the command "jupyter notebook" fails with the following error:

Traceback (most recent call last):

File "/opt/local/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/notebook/traittypes.py", line 235, in _resolve_classes

klass = self._resolve_string(klass)

File "/opt/local/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/traitlets/traitlets.py", line 2015, in _resolve_string

return import_item(string)

File "/opt/local/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/traitlets/utils/importstring.py", line 33, in import_item

module = import(package, fromlist=[obj])

ModuleNotFoundError: No module named 'jupyter_server.contents'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):

File "/opt/local/Library/Frameworks/Python.framework/Versions/3.11/bin/jupyter-notebook", line 8, in <module>

sys.exit(main())

File "/opt/local/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/jupyter_core/application.py", line 277, in launch_instance

return super().launch_instance(argv=argv, kwargs)

File "/opt/local/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/traitlets/config/application.py", line 1073, in launch_instance

app = cls.instance(kwargs)

File "/opt/local/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/traitlets/config/configurable.py", line 583, in instance

inst = cls(*args, kwargs)

File "/opt/local/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/traitlets/traitlets.py", line 1292, in new

inst.setup_instance(*args, kwargs)

File "/opt/local/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/traitlets/traitlets.py", line 1335, in setup_instance

super(HasTraits, self).setup_instance(*args, kwargs)

File "/opt/local/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/traitlets/traitlets.py", line 1311, in setup_instance

init(self)

File "/opt/local/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/notebook/traittypes.py", line 226, in instance_init

self._resolve_classes()

File "/opt/local/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/notebook/traittypes.py", line 238, in _resolve_classes

warn(f"{klass} is not importable. Is it installed?", ImportWarning)

TypeError: warn() missing 1 required keyword-only argument: 'stacklevel'