The script flake8.exe is installed in \'c:\\users\\me\\appdata\\local\\programs\\python\\python36-32\\Scripts\' which is not on PATH.
Consider adding this directory
If removing trailing slashes from the environment variables don't work, please try the following. It works fine for me. I am using window 10 and python3.7.0
Advanced system settings -> Environment Variables -> Path
Select Edit
Select Move Up button for both python and Scripts directory.
Finally your path will be as the following.
If you are using other windows(In the case of not having move up button), put your python and Scripts directory at the beginning of the path.