Adding Python 3 Kernel to Jupyter

when Python 2 won’t cut it anymore

Recently, I have been increasingly using Python 3 for some projects at work as well as some personal endeavors. I have been loyally using Python 2, as a habit retained from the first time I learned Python. I have the Anaconda distribution installed on all Macs I touch, so to be able to switch between 2 and 3, the task became adding Python 3 to Jupyter and enabling coding in notebooks with the kernel of choice.

What Worked

How do I add python3 kernel to jupyter (IPython)

Basically these 4 lines in Terminal did it for me:

python2 -m pip install ipykernel
python2 -m ipykernel install --user

python3 -m pip install ipykernel
python3 -m ipykernel install --user

Result

I am now able to select which kernel to use when creating a new notebook

Selecting Kernel when Creating a New Notebook

And, I can switch kernel while editing a notebook

Changing Kernel when Editing a Notebook

Credit to Jana @ Stackoverflow.