$ brew install pyenv
$ pyenv install 3.6.9
$ pyenv global 3.6.9
$ echo -e 'if command -v pyenv 1>/dev/null 2>&1; then\n eval "$(pyenv init -)"\nfi' >> ~/.zshrc$ brew install pyenv
$ pyenv install 3.6.9
$ pyenv global 3.6.9
$ echo -e 'if command -v pyenv 1>/dev/null 2>&1; then\n eval "$(pyenv init -)"\nfi' >> ~/.zshrc