Just tried out Jupyter Notebook for the first time. I can see why software engineers wouldn't like notebooks, especially if you intend to actually publish the notebook as code for other people to use (please publish a module that can be imported, not a notebook that has to be hacked to pieces to make it reusable), but it's pretty handy for early prototyping or documentation.

I'm playing around with save-editing for a few GBA games as a personal project, and I used a Notebook to document the save file format with examples.