Python installation

Hi Community,

I have installed python from https://www.python.org/downloads/

and the installed path of this application is my local C:\Users\data\AppData\Local\Programs\Python

and i am trying to run C:\InterSystems\IRIS_SANDBOX\bin>irispip install  in command prompt and getting the below error 

'pip' is not recognized as an internal or external command,
operable program or batch file

is there anything else i am missing here please add