$ brew update && brew upgrade python
$ pyenv global 3.7.3 # and verify it worked $ pyenv version 3.7.3 (set by /Users/mbbroberg/.pyenv/version)
$ brew install pyenv
# Go into your .zshrc file. Is there a line that reads: alias python='python3'
# it is said not to do but I used it anyway, because of the conveniency $ echo "alias python=/usr/local/bin/python3.7" >> ~/.zshrc
ln -s -f /usr/local/bin/python3.7 /usr/local/bin/python
[ -e ~/.profile ] && . ~/.profile
