Matthew Seal

In jupyter classic I also see this in the console: ``` ``` Failed to load resource: the server responded with a status of 404 (Not Found) manager-base.js:273 Could not instantiate...

Sorry I missed this post originally. Since the notebook is being run in a subprocess, to hang onto the process after execution you'd need to register a modified [engine](https://papermill.readthedocs.io/en/latest/extending-entry-points.html#developing-a-new-engine) that...

Sorry for the slow response. > How would one execute a collection of notebooks? That documentation is a little dated. We should probably remove the statement or clarify how to...

Apologies for the slow response (been dealing with some health issues and not paying attention to Github for a bit). Is the root problem around the `val` prefix vs plain...

@choldgraf Have you clicked "Trust Notebook" after executing (bottom of https://nbconvert.readthedocs.io/en/latest/execute_api.html#widget-state highlights this)?

It does sound like an oddity with those libraries. Might be worth posting to altair and/or ipython issues. I will try to take a look this weekend at the example...

Thanks for reporting @DanLeePy . There's been a known issue with rare race conditions causing port binding errors, but I wasn't able to get a nice stack trace before so...

It is I think. But you can see from the link here that the bound port is released before launching the kernel and then it assumes the kernel subprocess will...

Mostly it hadn't been done because people usually used nbconvert for in-memory execution in the past. But I'm not opposed to the idea of making it modular. Another option would...

Yeah that probably makes the most sense for general execution. Papermill will basically be applying the parameter injection and sourcing/sinking above that library.