PdVega installation

PdVega can be installed with

$ pipenv install pdvega
Installing pdvega…
Adding pdvega to Pipfile's [packages]…
✔ Installation Succeeded

$ pipenv run jupyter nbextension install --sys-prefix --py vega3
Installing /srv/jupyter/.local/share/virtualenvs/python-374-c_ntaqVM/lib/python3.7/site-packages/vega3/static -> jupyter-vega3

- Validating: OK

    To initialize this nbextension in the browser every time the notebook (or other app) loads:

          jupyter nbextension enable vega3 --py --sys-prefix

Dependencies

To be able to save plots as PNG or SVG, the command line tools vl2png and vl2svg from the vega-lite-npm package must be available.