how to install python 3 on mac terminal code example

Example 1: upgrade python version mc

brew install python3
brew update && brew upgrade python
alias python=/usr/local/bin/python3

Example 2: mac os install python 3

brew install python3

Example 3: command to install python3.6 on mac os

$ brew switch python 3.7.4_1

Example 4: install python 3.4 mac terminal

$ ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"