Troubleshooting - Plotly
https://plotly.com/python/troubleshootingWhen you install plotly, this extension is automatically made available to any JupyterLab 3.x installation in the same Python environment. To list your current extensions, run the following command in a terminal shell from the same environment as JupyterLab is launched: # Check that jupyterlab-plotly is installed $ jupyter labextension list ...