Add JupyterLab extension for interactive graphics

[mdpiper]

The jupyter-matplotlib JupyterLab extension + the ipympl package provide interactive Matplotlib graphics in JupyterLab. These should be installed in all the Hubs and made available for all users.

[mdpiper]

This is a request from @sebastien-lenard. It also came up in the CoCo pandas lesson.

[mdpiper]

From @rsignell-usgs, this functionality is also needed to take advantage of features in Pangeo. This discussion may help.

[mdpiper]

mamba found conflicts in trying to install the dependencies for ipympl in the base environment of the jupyter Hub instance.

Punting on this for now.

[rsignell-usgs]

@mdpiper for what it's worth, we don't use ipympl either. We use ipywidgets, dask-labextension and nb_conda_kernels in the base environment. And we use the holoviz suite of tools for interactive, graphical exploration in the browser. Here's the conda environment file for our pangeo environment.

[mdpiper]

@rsignell-usgs Thanks, I'll try this!

[benbovy]

xref landlab/landlab#1646 with a few other ideas for 3D scientific visualization in JupyterLab.