Relative line number

[quantum-booty]

Is it possible to add relative line numbers in Jupyter lab? I use the vim plugin and navigating would be a lot easier if I could see the relative line numbers.

[fcollonval]

Could you please add a screenshot and specify in which context you would like the one numbers to appear?

[quantum-booty]

Relative line numbers are probabily most useful in the text editor, but it would be nice to see it within the notebook cells as well.

[ianhi]

I think this ought to be transferred to the jupyterlab issue list - (@fcollonval the triage rights changed so now they only work on the jupyterlab repo - meaning I cannot actually do that)

@wanghankun you may also want to ask this on one of the jupyterlab_vim repos. Unfortunately I don't think there is any ready to go codemirror setting for this. Someone will need to make an extension that does this or add this to the jupyterlab_vim extension. A technique for getting relative line numbers can be found here codemirror/codemirror5#4116

[holdmygithub]

Is there relative line numbering in jupyter notebook (like that in vim)?
It is pretty convenient to use vim emulator in jupyter

[fcollonval]

I'm closing this one as it is not related to this repository (i.e. the git extension).

XRef jupyterlab core related issue: #6718

[ianhi]

This has also come up in vim support for the notebook. See discussion #9068 (comment) essentially the answer is that at the moment this will either require a separate extension or be perhaps be incorporated in https://github.com/ianhi/jupyterlab-vimrc

[telamonian]

Uhhh, I'm confused. "Show Line Numbers" has been an option that you can toggle on/off in Jupyterlab's "View" menu at least since the release of Jlab 1.0:

Or was the OP asking for something more complicated than the existing per-cell line numbering?

[quantum-booty]

Uhhh, I'm confused. "Show Line Numbers" has been an option that you can toggle on/off in Jupyterlab's "View" menu at least since the release of Jlab 1.0:

Or was the OP asking for something more complicated than the existing per-cell line numbering?

I meant vim-like relative numbers. Like this:

[ianhi]

(edit: wow posted at nearly same time - didn't mean to double up)
@telamonian they are asking after this behavior in vim:

[telamonian]

Wow, I've been using vim for more than a decade now and I've never seen that. So many weird corners to that ancient tool...

@quantum-booty Anyway, this feature has nothing to do with jupyterlab-git in the slightest. If you really want it, you should open an issue on the main jupyterlab repo

[holdmygithub]

Yes! we need that in jupyter. Relative numbering is very convenient to use in Vim mode!

[xaviernogueira]

Any updates here?

[krassowski]

Re-opening after transferring to the right repository because I do not think that #6718 captures it.

One can create a JupyterLab extension adding a CM6 extension like https://github.com/jsjoeio/codemirror-line-numbers-relative to achieve this effect.