How to display what I write on sublime text editor on the CMD

[el_bueno]

Hi everyone!

Im totally, Totally, Totally new with coding, and that my first ever post on a coding forum.

Im learning Python, for almost two weeks now, so be gentle with me when you're gonna explain

So Im using Sublime Text editor to write my Python codes and then displaying them using CMD on my Windows 10.

I try to display this code but when I run it on CMD...I get nothing.

Here is my code:

mystring="abcdefjhigklmnopqrst"

mystring[4:]
mystring[4:2]
mystring[4:2:3]

Do I need to add some built-in keywords to display the result on the CMD window??