I am trying to set up Python so that I can execute ArcPy scripts outside of ArcMap. I'm new to Python, however I have previously been able to execute Pythons scripts from the cmd prompt (PowerShell), however I can't execute any ArcPy related scripts (maybe I'm misunderstanding).
First thing is that when I type "python" in the cmd, I am getting a different version to the one ArcMap 10.3 is using, which is 2.7.
I have set the path in Windows Environment Variable -
I'm using a textbook and seemed to have followed the instructions, so i'm not sure where I've gone wrong.