Jupyter Notebook Moduleerror After Homebrew Upgrade

I have been using Jupyter for some time now and it has worked just fine. I have Jupyter and Python installed via Homebrew. I am running on MacOS. Yesterday, I ran the command brew

Solution 1:

I figured out what to do — posting the solution for my future self and others who may stumble upon this.

Since Jupyerlab is in its own Cellar, the Python packages need to end up in the

/usr/local/Cellar/jupyterlab/x.y.z/libexec/lib/python3.x/site-packages

directory, where x, y, z are integers, so that the Jupyter kernel can find them.

You can do this by calling:

import sys
!{sys.executable} -m pip install 'package-name'

inside of the Jupyer notebook.

All is well, again.