Jupyter Lab: neo4jupyter.init_notebook_mode() -> Javascript Error: require is not defined

[pwrose]

neo4jupyter (v 0.1.2) doesn't seem to work in Jupyter Lab:

import neo4jupyter neo4jupyter.init_notebook_mode()

Javascript Error: require is not defined

[merqurio]

I'll check it out, thanks ! Can you check the jupyterlab version ?

[pwrose]

Thanks for looking into this. I'm using Jupyter Lab version 1.2.6.

I'm trying to visualize a knowledge graph I've created in this repo: https://github.com/sbl-sdsc/coronavirus-knowledge-graph

There is a Launch Binder link, so you can run the notebooks in your web browser if you've like to reproduce the issue.

On Thu, Feb 13, 2020 at 2:56 AM Gabi Maeztu [email protected] wrote:

I'll check it out, thanks ! Can you check the jupyterlab version ?

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[merqurio]

Thanks ! I'll try to check it this weekend

[pwrose]

@merqurio we are trying to use neo4jupyter for our coronavirus KG. If you have a chance, could you look into the 0.2.0 milestones? You could save a life!

[DoubleBite]

@pwrose Using jupyter notebook instead of jupyter lab may work

[pwrose]

@DoubleBite yes, jupyter notebook works, but we have switched all our work to jupyter lab.

On Thu, Jun 11, 2020 at 12:04 AM DoubleBite [email protected] wrote:

@pwrose https://urldefense.com/v3/__https://github.com/pwrose__;!!Mih3wA!SGmxCKJ8P3qLdk_VKuZMM0WKeDIHyzHL3-I_FPiJ4u2e-0_nUYqpJ_l93UJ3EjY$ Using jupyter notebook instead of jupyter lab may work

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[bucweat]

Just ran into this myself. Turns out Jupyterlab does not include require.js while jupyter does. Jupyterlab folks didn't want developers using require.js to load dependencies, so they left it out and don't plan on adding it back. They recommended adding a lab extension. Someone did make a requirejs lab extension for jupyterlab but it only works on older versions.

Easy fix is to copy require.js to the same directory that has your ipynb file and then

%%HTML
<script src="https://cdnjs.cloudflare.com/ajax/libs/require.js/2.3.6/require.js"></script>

in a cell before you

import neo4jupyter
neo4jupyter.init_notebook_mode()

Originally I thought you could copy the file locally and do the following to import it, but this does not work

%%HTML
<script src="require.js"></script>