Should ~/.local/etc/jupyter be part of the default config path?

[jeffyjefflabs]

I apologize if this has been covered before, but I could only find it referenced for a couple specific extensions (mwouts/jupytext#546 and widgetti/ipyvolume#85) and not more generally. Basically, the problem is that if you pip install a Jupyter extension with the --user flag, the json file needed to automatically enable the extension ends up somewhere like ~/.local/etc/jupyter/jupyter_notebook_config.d/, which is not one of the default config directories.

[mwouts]

Hi everyone, may I follow-up on @jeffyjefflabs 's issue?

When you do pip install on a Ubuntu machine, with pip installed via apt-get, then the jupyter extension configurations are deployed to the ~/.local/etc/jupyter folder. But that folder is not listed in jupyter --paths, and consequently the extensions are not activated. Cf. for instance this comment for more details.

My question is the following: Is ~/.local/etc/jupyter a legitimate Jupyter configuration folder?

If so, should we update jupyter_core.paths.jupyter_config_path to include that path among jupyter --paths? If not, what is the appropriate modification on the setup script of, say, Jupytext, to deploy the configurations files directly in ~/.jupyter?

[jasongrout]

Thanks for following up on this. I've put up a possible fix at #242. What do you think of the change?

[mwouts]

Hi @jasongrout 👋 , thank you so much!
To me the change looks OK, but maybe I am not the best person to review.

I can confirm however that it does fix the issue on my side - I have just tested your branch with

pip install git+https://github.com/jasongrout/jupyter_core.git@user

and now I see the ~/.local/etc/jupyter directory among the config paths:

$ jupyter --paths
config:
    /home/marc/.jupyter
    /home/marc/.local/etc/jupyter
    /usr/etc/jupyter
    /usr/local/etc/jupyter
    /etc/jupyter
data:
    /home/marc/.local/share/jupyter
    /home/marc/.local/share/jupyter
    /usr/local/share/jupyter
    /usr/share/jupyter
runtime:
    /home/marc/.local/share/jupyter/runtime

(and I have also tested that the extension does work in Jupyter Lab)

[mwouts]

(Oh I see that there is a duplicate in the data paths, can you reproduce this in the tests?)

[jasongrout]

(Oh I see that there is a duplicate in the data paths, can you reproduce this in the tests?)

These duplicate paths should be fixed now with the current iteration of that PR.

[mwouts]

These duplicate paths should be fixed now with the current iteration of that PR.

Thanks @jasongrout - I just tested it on my side and I confirm that the duplicate paths are gone.