If what MK_CodingSpace says is true, then your environment variables are not properly set.
see: https://docs.python.org/3/using/cmdline....-variables
or reinstall, and click the check box when asked if you want environment variables to be automatically set for you (shown during installation process).
see: https://docs.python.org/3/using/cmdline....-variables
or reinstall, and click the check box when asked if you want environment variables to be automatically set for you (shown during installation process).