Notebook: Split input/output in separate files

[Peque]

I know it has been discussed before. Adding the possibility of separating input and output into different files would be a great advantage for version control in notebooks.

I would like to know if you reached an agreement against implementing separate input/output files or rather this feature was simply not implemented because nobody wanted to help (or maybe somebody is currently working on it or has worked on it before).

@minrk (pinging as you participated in that discussion back then, I think)

[takluyver]

We are planning to add a companion file. By default, that will be used for widgets, but I think we will add config options to put some or all output into the companion file rather than the notebook file. More details here: https://github.com/jupyter/roadmap/blob/master/companion-files.md

[blink1073]

@jasongrout and I were talking about this yesterday because we have the unfortunate situation that view data such as collapsed and scrolled are stored in the document itself, making it impossible to share a document between different views or users without also sharing that state.

https://github.com/jupyter/nbformat/blob/master/nbformat/v4/nbformat.v4.schema.json#L160

[Peque]

@takluyver That is really good news! I would love to have that possibility. :blush:

Is there a PR or Issue tracking that feature? or not yet? (just to subscribe so that I can receive updates)

[takluyver]

I've just created an issue to track it: https://github.com/jupyter/notebook/issues/1465

[yuvipanda]

There's also https://github.com/mwouts/jupytext, which does some of this work. The issues referred to from here have more info on ongoing work as well.

Going to close this one as there hasn't been any activity for a while, feel free to re-open if needed!