GNU bug report logs - #52139
jupyter trying to modify /gnu/store

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From: Lars-Dominik Braun <lars <at> 6xq.net>
To: Ludovic Courtès <ludo <at> gnu.org>
Cc: Alexander Asteroth <alexander.asteroth <at> h-brs.de>, 52139 <at> debbugs.gnu.org
Subject: bug#52139: jupyter trying to modify /gnu/store
Date: Mon, 13 Dec 2021 09:20:37 +0100

[Message part 1 (text/plain, inline)]

Hi Ludo,

> But precisely: as Alexander wrote, when JUPYTER_CONFIG_DIR points to the
> store, jupyterlab cannot drop a config file there.  Or am I missing
> something?
sorry, my message was unclear here. The config file is written at
build time.

> BTW, if JUPYTER_CONFIG_DIR is meant to contain a directory name, as
> opposed to a colon-separated search path, we should make this change:
Looking at the documentation[1] again this is correct, but I feel we
should use JUPYTER_CONFIG_PATH instead, because it supports
colon-delimited entries, see attached patch. However that does not get
rid of error messages like these, when trying to use Settings→JupyterLab
Theme for example:

[W 08:10:14.476 LabApp] 500 PUT /lab/api/workspaces/lab?1639383014500 (127.0.0.1): [Errno 30] Read-only file system: '/gnu/store/8q7wdpdddfqh46plbbsa3rwci5092n5y-profile/etc/jupyter/lab'

So it seems that JUPYTER_CONFIG_PATH overrides the default
JUPYTER_CONFIG_DIR, when the latter is not set. Or maybe guix-science’s
jupyterlab is simply too old – not sure right now.

Cheers,
Lars

[1] https://jupyter.readthedocs.io/en/latest/use/jupyter-directories.html

[jupyter-core-config-path.patch (text/x-diff, attachment)]

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