[MacPorts] #69244: py311-notebook: ModuleNotFoundError: No module named 'jupyter_server.contents'

[MacPorts]

#69244: py311-notebook: ModuleNotFoundError: No module named
'jupyter_server.contents'
-----------------------------+----------------------
  Reporter:  jolivetr        |      Owner:  stromnov
      Type:  defect          |     Status:  assigned
  Priority:  Normal          |  Milestone:
 Component:  ports           |    Version:
Resolution:                  |   Keywords:
      Port:  py311-notebook  |
-----------------------------+----------------------

Comment (by dyne2meter):

 I followed the instructions for reverting, but I was only able to install
 py-traitlets 5.9, and not able to locate (let alone, revert) either
 py311-traitlets or py312-traitlets. Maybe it's buried somewhere in py-
 traitlets, but most of macports is a black box to me.

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Ticket URL: <https://trac.macports.org/ticket/69244#comment:10>
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