brew install python3 code example
Example 1: mac os install python 3
brew install python3
Example 2: brew install python 3.7
brew install python@3.7
Example 3: brew install pip python3
export PATH="/usr/local/opt/python/libexec/bin:$PATH"
Example 4: install python 3.4 mac terminal
$ ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"