Run the following command in the command line to install Homebrew, a tool that simplifies the installation of applications and libraries that we will need for programming.
$ /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
Then install Python using the following command:
$ brew install python3
Check that you have Python version 3.6 or higher.
$ python3 --version
If "Python" and the version number appear (e.g. Python 3.6.6) and the version is 3.6 or higher, you have it installed.
Otherwise, something is wrong. Please send us an e-mail and we'll try to help.