Chris Sewell

Same here. I installed on a new macbook with 10.15.5, *via* homebrew, and I don't see any previews available e.g for `.yml`

@matthew-brett also for your consideration https://myst-nb.readthedocs.io/en/latest/use/glue.html 😁

For completeness, I also added comparison of `application/json` mimedata, using `json.dumps`

thanks for the quick feedback, yep good suggestion, that works 👍

Oh well looks like I'm ditching coveralls for codecov. It's a shame I like coveralls, but if forked PRs aren't supported with GitHub actions/pytest then its not viable for my,...

> all i want is to have the title from the file name hi @daliagachc, to clarify when you say title from the file name, do you mean the exact...

> The tricky thing is that I think we don't want an average jupyter book user to have to learn anything about Sphinx in order to use and understand jupyter...

See this new functionality in myst-parser: https://myst-parser.readthedocs.io/en/latest/using/syntax.html#setting-html-metadata. (note this version of myst-parser is not yet part of jupyter-book v0.9, but will be in v0.10)

Which is exactly why in myst-nb there is the `execution_show_tb` options 😉 see: https://myst-nb.readthedocs.io/en/latest/use/start.html#myst-nb-configuration-options, and what I use on ReadTheDocs: https://github.com/executablebooks/MyST-NB/blob/446cf0d269a0906eacc1b88b418c7bce40ee4cee/docs/conf.py#L97

> should this perhaps be the default behavior? No, but there could easily be a CLI flag added