in have_prerequisites
    from notebook.notebookapp import NotebookApp
  File 
"/Applications/SageMath-9.2.app/Contents/Resources/sage/local/lib/python3.8/site-packages/notebook/notebookapp.py",
 
line 66, in <module>
    from tornado import httpserver
  File 
"/Applications/SageMath-9.2.app/Contents/Resources/sage/local/lib/python3.8/site-packages/tornado/httpserver.py",
 
line 29, in <module>
    import ssl
  File 
"/Applications/SageMath-9.2.app/Contents/Resources/sage/local/lib/python3.8/ssl.py",
 
line 98, in <module>
    import _ssl             # if we can't import it, let the error propagate
ModuleNotFoundError: No module named '_ssl'
┌────────────────────────────────────────────────────────────────────┐
│ SageMath version 9.2, Release Date: 2020-10-24                     │
│ Using Python 3.8.5. Type "help()" for help.                        │
└────────────────────────────────────────────────────────────────────┘
Please wait while the Sage Jupyter Notebook server starts...

The Jupyter notebook requires ssl, even if you do not use
https. Install the openssl development packages in your system and
then rebuild Python (sage -f python3).

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