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by flaviocopes 1987 days ago
Not sure about the Jupyter-specific issues but macOS comes with Python 2 installed, so you have to install Python separately and use the `python3` binary, or alias `python` to the `python3` binary.

Then remember to run pip using `python3 -m pip <command>` and use virtual environments (venv)

I stumbled on this a couple weeks ago and documented the process here https://flaviocopes.com/python-installation-macos/

I found the same problem with Ruby (old version preinstalled on macOS)