I'm trying to download SimPy via pip but when I type "pip install simpy" my command line gives me this message : 'pip' is not recognized as an internal or external command, operable program or batch file. Then I tried typing "python" to check my Python version but it gave me the same message : 'python' is not recognized as an internal or external command, operable program or batch file. Does anyone know what might be the problem?
Thank you in advance!