logout from command prompt to uploading application on google app

I am uploading google app engine application with the help of appcfg.py command from command prompt in windows.

But after one login I want开发者_如何学JAVA to upload another application from the same command prompt but i cannot because this second application has no rights with the current login so i want to logout from this session on command prompt so for that what to do? It is a python application

Is there any command to logout from command prompt?

You can run appcfg.py with --no_cookies to tell it not to store authentication cookies, or -e EMAIL to specify an email address that differs from the one in the current cookie.