"nbconvert"ed interactive Vega plots

[jacobkolind]

Using the nbconvert tool, it would be nice be able to export notebooks containing Vega plots in html (and rst) format. For static plots it just works, but for good reasons all the interactive features of a plot disappear. Links to the d3 and vega javascript libraries need to be added to the HTML template that is passed to nbconvert, and some magic to preserve the plot specification also need to happen in the preprocessing and conversion steps.

Are you able to offer advice on how to write such magic? By calling the private functions _generate_html and _generate_js on the vega.vega.Vega object I can get the relevant snippets of code, but my knowledge about Jupyter and nbconvert is not deep enough to understand how I can make them survive through to the output HTML.

[jakevdp]

I'm not certain, but FYI this repo will soon be deprecated. Jupyter integration of vega will be moving to https://github.com/altair-viz/jupyterlab_vega/ (using a fundamentally different approach for compatibility with JupyterLab), so any solution to this issue should be explored there.