stop notebook on error #251

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1. cosmos72 commented on Aug 5, 2022

   

   cosmos72

   on Aug 5, 2022

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   You want to stop a notebook server programmatically?

   Executing os.Exit will cause gophernotes to exit, but jupyter (or whatever notebook frontend you are using) will just notice it,
   show a message similar to

   Kernel Restarting
   The kernel appears to have died. It will restart automatically.
   

   and start another gophernotes process.

   So the solution, if any, is to send a ZMQ message from gophernotes to the notebook asking it to exit.
   Spoiler: I have no idea if notebook's protocol define such a message. Maybe @sbinet ?
2. cosmos72

   added

   enhancement

   on Aug 14, 2022
3. sbinet commented on Aug 17, 2022

   

   sbinet

   on Aug 17, 2022

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   seems possible at the protocol level:

   • https://jupyter-client.readthedocs.io/en/latest/messaging.html#messages-on-the-control-router-dealer-channel
   • https://jupyter-client.readthedocs.io/en/latest/messaging.html#kernel-interrupt