I have python 3.9 I used the command 'pip install auto-py-to-exe' and it downloaded but when I tried to using the command 'auto-py-to-exe' the program just said " 'auto-py-to-exe' is not recognized as an internal or external command, operable program or batch file.". I have the latest version of PIP and I also have PATH. What can I do to fix this?