https://levelup.gitconnected.com/how-to-set-up-python-environment-on-your-mac-560ebf9324ed

brew install pyenv

echo 'eval "$(pyenv init -)"' >> ~/.bash_profile

pyenv install 3.8.5

pyenv versions

pyenv global 3.8.5

pyenv local 3.8.5

pyenv shell 3.8.5

pyenv which pip

which python => pyenv shim

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brew install pyenv-virtualenv

pyenv virtualenv dev