Hide Input

This extension allows hiding of an individual codecell in a notebook. This can be achieved by clicking on the toolbar button:

Internals

The codecell hiding state is stored in the metadata cell.metadata.hide_input. If it is set to true, the codecell will be hidden on reload.

Exporting with nbconvert

See also the general docs for exporting using nbconvert at jupyter-contrib-nbextensions.readthedocs.io.

To export a notebook with hidden cell inputs using nbconvert, you need to use a custom template. The required template is supplied as part of jupyter_contrib_nbextensions.nbconvert_support, or you can roll your own using the provided ones as examples. Again, see the docs linked above for more information.

The nbextensions.tpl template is provided in the jupyter_contrib_nbextensions.nbconvert_support templates directory (see the docs mentioned above for how to find it)

To use, add the template to your nbconvert call:

jupyter nbconvert --template=nbextensions --to=html my_notebook.ipynb

The nbextensions template will respect the cell.metadata.hide_input flag, and filter the cell’s output prompt (the bit that looks like Out[27]:). The filter is only used for html output, not for PDF or LaTeX output.

If you want to keep the cell output prompt, you will have to remove the lines

{% block output_group -%}
{%- if cell.metadata.hide_output or nb.metadata.hide_input -%}
{%- else -%}
    {{ super() }}
{%- endif -%}
{% endblock output_group %}

in the nbextensions.tpl file.