Installing pip and elementpath for Python 3.8

I want to install elementpath for python 3.8 to use it for accessing xml Like:import xml.etree.ElementTree as ET

I know that I should use "pip install elementpath" in cmd. I installed python on my PC as well as pip and added them to the environment variables C:\Users\user\AppData\Local\Programs\Python\Python38-32 C:\Users\user\AppData\Local\Programs\Python\Python38-32\Scripts\pip

However, if I want to install elementpath using cmd I get this error when I put the "pip"

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

I want to do this in order to import xml.etree.ElementTree as ET to use to access web data using python