Not working in Jupyterlab

Hi Maarten,

I was trying to use ipyvolume in Jupyterlab, but I get the message “Failed to display Jupyter Widget of type VBox”. Here is my setup:

git clone https://github.com/maartenbreddels/ipyvolume.git
mkdir ipyvolume_env
cd ipyvolume_env
pipenv install jupyterlab
pipenv shell
pipenv install -e ../ipyvolume
jupyter nbextension install --py --symlink --sys-prefix ipyvolume
jupyter nbextension enable --py --sys-prefix ipyvolume
jupyter lab ../ipyvolume/notebooks/example.ipynb

[maartenbreddels]

Hi David,

that means that jupyter-widgets is not installed into jupyter lab (the js part of the library), this nbextensions command is only for the notebook (although all of this will be done automagically in the future). Try running this:

$ jupyter labextension install @jupyter-widgets/jupyterlab-manager

Then see if you get say a slider working

import ipywidgets
ipywidgets.FloatSlider()

If that works, try enabling ipyvolume:

$ jupyter labextension install ipyvolume

Let me know if this works out!

[maartenbreddels]

Yes, I hope the next version will include it in the source distribution, we plan to discuss this next week at a workshop actually. Also, the last argument can be a directory: https://jupyterlab-tutorial.readthedocs.io/en/latest/developer/extension_dev.html