I confirmed in my setup that the work around for
How to shutdown a JupyterDash app in external mode?
does not
work anymore… 😦

• Is it too much to ask for a documented way to tell Dash apps to shutdown using a public method?
  Trying the proposed work around a proper way to do it results in the error
  • AttributeError: 'JupyterDash' object has no attribute '_terminate_server_for_port'
• My specific use case is the example Dash Python > Dash Core Components > Upload > Displaying Uploaded Spreadsheet Contents with
  • the additional import statement from jupyter_dash import JupyterDash and
  • dash.Dash replaced by jupyter_dash.JupyterDash in the second line after the import statements to let it run in a Jupyter Notebook.

1. Displaying Uploaded Spreadsheet Contents is one of several such examples I collected in a Jupyter Notebook for exploring Dash.
2. When I run different cells with different examples one after another there the localhost address gets replaced everytime a new cell is executed.
3. In order to explore the specific use case further I copied it into another notebook. Trying to run the example from the other notebook afterwards the OSError: Address already in use occurs.