📓 Add ipynb as export format

[rowanc1]

cc @mmcky

[changeset-bot]

🦋 Changeset detected

Latest commit: 7c1aa47

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 9 packages

Name	Type
myst-frontmatter	Patch
myst-to-ipynb	Patch
myst-cli	Patch
myst-common	Patch
myst-config	Patch
myst-spec-ext	Patch
myst-to-md	Patch
mystmd	Patch
myst-migrate	Patch

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[mmcky]

thanks @rowanc1. I will check this branch out and give it a go tomorrow.

[choldgraf]

This would be really useful for educational use cases in general. It's something many people have requested! Especially if:

1. it is possible for some cells to not show up in the output notebooks.
2. If launch buttons etc can launch the built notebooks instead of the source notebooks.

I don't think either of those should block this, just noting commonly requested functionality if it is helpful. People often want this to separate teacher and student copies of things.

I bet there is an issue in jupyter book we can link this against. (On phone now so it is hard to look)

[mmcky]

agree @choldgraf. Some form of state based code-cells (enabling student and teacher (solution) notebook versions) is a super useful feature for education. I'll search through the issues and/or open one to track this use case.

[kp992]

Thanks for the putting this together. I am happy to help in completing this feature.

[choldgraf]

Just noting there was some discussion on the jupyter-education listserv today of folks asking whether it was possible to generate notebooks from "teacher copies" which reminded me of this feature.

[nthiery]

Is one of the use case in mind to regenerate the notebook in a book with cross links resolved and the like? That would be quite useful indeed!

With that in mind, I would suggest to also enable -- in this PR or a followup -- exporting text-based notebooks (e.g. in jupytext myst:md format). These are super handy in certain contexts -- especially in the aforementioned context of education.