Cells hidden with Papermill are not hidden

[derek-pyne]

I am using Papermill to render notebooks in which I would like to have the input hidden. Papermill has a report_mode which I am using to do this.

This seems to add the source_hidden metadata to each cell as below:

{
    "jupyter": {
        "source_hidden": true
    },
    "papermill": {
        "duration": 0.014058,
        "end_time": "2019-09-18T19:54:49.695565",
        "exception": false,
        "start_time": "2019-09-18T19:54:49.681507",
        "status": "completed"
    },
    "tags": []
}

When I open these notebooks in JupyterLab the cells are correctly hidden but when I view them in Commuter no cells are hidden. Should this work or is there another supported way to hide input?

[captainsafia]

commuter is currently using the @nteract/notebook-preview component. Tangent: this component has been deprecated and we need upgrade to use the components out of @nteract/presentational-components.

The component currently only interprets input_hidden and inputHidden as metadata for hiding the source. nbformat doesn't have a this as part of the spec yet, AFAIK.

IMO, report_mode should set the inputHidden property in addition to source_hidden. Thoughts on this, @MSeal?

[MSeal]

@captainsafia Yes we should probably change it. I would prefer we used camel cased fields input_hidden to match the casing for all the other standard fields, but I think a PR would be a good idea to papermill for that change.