Python 3 crash course

[snippsat]

im using mac i try to setup sublime text.

Installing Python 3 on Mac OS X or a better altentive in my view pyenv Simple Python Version Management | build environment Mac.

what is the other i dont know what pip is

pip is one of the most important part of Python,it's dos package management.
So we have PyPi using a package eg Requests pip install requests.
This download and install automatic for you.

the book i use uses sublime text.

This dos not all mean that you need to use sublime text,VS Code is more geared against at Python and a better free option in my view.