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Apr 8, 2024, 2:16:45 PMApr 8

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Setup : Sage 10.4.beta1 running on Ubuntu 22.04 LTS under WSL2 in Windows 11 (don’t get me started…). I also installed emacs and its juyter package, which is able to use Sage-installed kernels … when emacs is started from the Sage shell. [ Yes, there is a point to this…]

What I want to do is to be able to use these Sage-installed kernels from outside the Sage shell environment, thus avoiding to duplicate the Sage Jupyter installation. In other words, I want a jupyter command that is able to finfd the Sage-instaled kernels in their correct environment.

Is there any way to do that ?

Apr 8, 2024, 6:21:57 PMApr 8

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If you run `jupyter --paths` and `sage -sh <<<"jupyter --paths"` you see the difference in paths. The relevant ones for you are probably the sage-specific ones

$SAGE-LOCAL/var/lib/sage/venv-python3.10/share/jupyter

Whatever is there will get picked up by sage's jupyter but, naturally, not by your standard jupyter.

So the kernels that live there could be copied to a location that is accessed by your system jupyter:

$HOME/.local/share/jupyter

or something like that.

Note that the files there might need some surgery, because starting those kernels probably needs to happen through sage's python (or at least its venv); similar to how to get the sage kernel working in a system jupyter.

Apr 8, 2024, 8:24:45 PMApr 8

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Actually, the best way to solve this would be to get rid of Jupyter as a part of Sage the distribution.

Then one can install these kernels in a normal Jupyter way - without it being a kind of

afterthought 2nd class citizen way.

No project I know, apart from Sage, vendors Jupyter. Vendoring Jupyter is just a needless bloat.

Dima

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Apr 9, 2024, 8:17:17 AMApr 9

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Le mardi 9 avril 2024 à 02:24:45 UTC+2, Dima Pasechnik a écrit :

[ Snip… ]

Actually, the best way to solve this would be to get rid of Jupyter as a part of Sage the distribution.

Agreed. Since I “seriously” configured Sage a loooong time ago, I missed the rise of the .configure options allowing for using the system’s Jupyter. As far as I understand it, I’ll have to install Ubuntu’s (=Debian’s) Jupyter, pipx and install Jupyterlab in a venv. Will this solve my problem ? Stay tuned…

Then one can install these kernels in a normal Jupyter way - without it being a kind ofafterthought 2nd class citizen way.No project I know, apart from Sage, vendors Jupyter. Vendoring Jupyter is just a needless bloat.

The important word is *“is”* (*i.e.* not *“was*“) : ISTR that a (not so) long time ago, Sages motto was *“batteries included”*, which implied the bundling of anything Sage could use in Sage-the-distribution (including some interesting kitchen sinks…). This “philosophy” has changed, but Sage’s construction still lags behind (and so does my knowledge of the installation system…).

Apr 9, 2024, 1:20:45 PMApr 9

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On Monday, April 8, 2024 at 5:21:57 PM UTC-5 Nils Bruin wrote:

If you run `jupyter --paths` and `sage -sh <<<"jupyter --paths"` you see the difference in paths. The relevant ones for you are probably the sage-specific ones$SAGE-LOCAL/var/lib/sage/venv-python3.10/share/jupyterWhatever is there will get picked up by sage's jupyter but, naturally, not by your standard jupyter.So the kernels that live there could be copied to a location that is accessed by your system jupyter:$HOME/.local/share/jupyteror something like that.Note that the files there might need some surgery, because starting those kernels probably needs to happen through sage's python (or at least its venv); similar to how to get the sage kernel working in a system jupyter.

The Sage binary installer for macOS optionally installs the Sage Jupyter kernels in a location that an arbitrary Jupyter will search by default, and in that case the JSON kernel file just looks like:

{"argv": ["/var/tmp/sage-10.3-current/venv/bin/sage", "--python", "-m",

"sage.repl.ipython_kernel", "-f", "{connection_file}"],

"display_name": "SageMath 10.3",

"language": "sage"}

I think it will work as long as your have the full path to Sage in the venv as part of argv.

Best,

Nathan

Apr 9, 2024, 2:18:05 PMApr 9

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If I understand your question correctly, the answer is yes. All that you need to do is to copy the sage kernel spec directory into /usr/local/share/jupyter/kernels. If you have installed jupyter in a python venv then the jupyter command in the venv will always check for kernels in that directory. By the sage kernel spec directory I mean:

sage/venv/share/jupyter/kernels/sagemath

the kernel.json file in that directory should contain the absolute path to the sage executable in your installation of sage as the first item in the "varg" list.

- Marc

Apr 15, 2024, 3:19:17 AMApr 15

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Apr 15, 2024, 8:46:33 AMApr 15

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I don't understand what you mean , but there is maybe a way you
can use it as I do in vs code ?

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Apr 15, 2024, 9:29:45 AMApr 15

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On Mon, Apr 15, 2024 at 1:46 PM Henri Girard <henri....@gmail.com> wrote:

I don't understand what you mean , but there is maybe a way you can use it as I do in vs code ?

Le 15/04/2024 à 09:19, Matthias Koeppe a écrit :

Yes, this is documented in https://doc.sagemath.org/html/en/installation/launching.html#setting-up-sagemath-as-a-jupyter-kernel-in-an-existing-jupyter-notebook-or-jupyterlab-installation

The instructions given there for using VS Code+WSL there should be adapted to using

VS Code+local Sage, and VS Code + (non-WSL remote Sage install).

It seems that Jupyter extension in VS Code packages more goodies than the generic Jupyter install,

in particular various nbextensions are there.

--

--On Monday, April 8, 2024 at 11:16:45 AM UTC-7 Emmanuel Charpentier wrote:

Setup : Sage 10.4.beta1 running on Ubuntu 22.04 LTS under WSL2 in Windows 11 (don’t get me started…). I also installed emacs and its juyter package, which is able to use Sage-installed kernels … when emacs is started from the Sage shell. [ Yes, there is a point to this…]

What I want to do is to be able to use these Sage-installed kernels from outside the Sage shell environment, thus avoiding to duplicate the Sage Jupyter installation. In other words, I want a jupyter command that is able to finfd the Sage-instaled kernels in their correct environment.

Is there any way to do that ?

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Apr 15, 2024, 2:31:23 PMApr 15

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I use many vscode with sagemath-9.2 (windows installer) and
sagemath 10.4beta 2wsl2

i start sage copy the address from the terminal then I paste it
in serveur ans it finds the localhost this is interesting in w11
because i can start sage directly in code so I can see what is in
ipynb because I have done tons of it and I never remenber what's
inside !

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