The widgets.ipnyb notebook has examples of widgets using a custom lisp kernel with a widget interface to the python widgets:
When evaluating a cell with a call to widget there is an error:
Error displaying widget: model not found
However, restarting the kernel and running all cells then works fine, eg. the widgets are rendered and are interactive.
Is there something to include in the setup and launch of the docker image after installing the widget lab extension to ‘activate’. Currently, we use jupyter-console to add the kernel. Perhaps something is missing there.
Any hints of feedback appreciated, -Andreas