element variable not defined when rendering IPyWidgets

[DonJayamanne]

• Vega, vpython, vegalite, ipyaladin, etc
  • Requires element variable
  • Requires nbextension/.... modules (tracked & possibly fixed here Clean up support for ipywidgets in remote jupyter scenarios #10434)

Solutions
* [ ] We must have our custom application/javascript renderer which adds the element variable in context
* [ ] Register nbextension/.... modules when kernel starts & loads (tracked & possibly fixed here #10434)

There could be plenty of widgets that rely on these, hence don't work.

[rchiodo]

Are you going to load widgets from the python nb_extensions folder?

[DonJayamanne]

we already do that today, the proposal is to list more files from there

[rchiodo]

nbextensions folder has to be added to require.js so that if a widget depends upon other files, they can be found.

[DonJayamanne]

nbextensions folder has to be added to require.js so that if a widget depends upon other files, they can be found.

Yes, again we do this today, we copy the files to another directory.

[dentistfrankchen]

I believe now a lot of error behavior might be caused by the internal mechanism vscode uses to handle javascript.

[DonJayamanne]

This should now be fixed in the latest release.