Jupyter: disable restart kernel warning

Question

I'm using jupyter 4.1.0, and I find myself making frequent use of the "Restart & Run All" feature. Every time I use that button it displays this warning:

Is there a way to disable that warning?

I feel that the accepted answer doesn't answer this question. The question mentions pressing the button which indicates it's a user interaction, not a script. The accepted answer addresses [this question](https://stackoverflow.com/questions/37751120/restart-ipython-kernel-with-a-command-from-a-cell). Is there a way to disable the prompt after manually selecting "Restart & Run All", for example? — Demitri, Sep 13 '20 at 19:17

score 29 · Accepted Answer · answered Nov 01 '17 at 12:59

29

You can add a cell in your notebook and using the following statements:

from IPython.core.display import HTML
HTML("<script>Jupyter.notebook.kernel.restart()</script>")

And the kernel will restart immediately.

answered Nov 01 '17 at 12:59

kingbase

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Doesn't work in the Jupyter Lab but works perfectly fine in Jupyter Notebook. For people checking out this answer in context of `jupyter lab` use `os._exit(00)` instead. – balkon16 Oct 09 '19 at 08:20
Is there a solution for R kernel? – Zuooo Oct 12 '19 at 12:48
@Zuooo The key of the answer was to eval HTML/javascript expr – kingbase Dec 19 '19 at 07:07
Works great in `Jupyter notebook`. Thanks! – gies0r May 11 '20 at 17:28
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But doesn't spare you from having to click the notification. :-( – primfaktor Oct 09 '20 at 06:09
Yep `os._exit()` is **not** a solution at all. It's actually worse than the built-in Jupyter way of restarting (which this question is about), because it's custom code that wastes a cell in your notebook. – devdanke Sep 06 '22 at 15:34

score 1 · Answer 2 · answered Oct 09 '20 at 06:13

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To answer the question that was stated: No, there isn't.

But you might make your voice heard over here so they might implement it some day.

answered Oct 09 '20 at 06:13

primfaktor

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score 0 · Answer 3 · answered Oct 23 '20 at 10:07

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You can create a bookmark in your browser for the following code:

javascript:Jupyter.notebook.execute_all_cells();void(0);

Clicking this bookmark runs all cells without asking for confirmation.

answered Oct 23 '20 at 10:07

dinesh ygv

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(I think that?) this will not restart the kernel, which is a problem if the reason you are restarting is that something very mysterious has happened in the global variable scope and you need to start from a clean slate. – MRule Aug 11 '21 at 16:24

Jupyter: disable restart kernel warning

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