Question

I have hosted GAE apps with two different email ids! When i first time used appcfg.py to update my app then it prompted me for email id and password but later it doesnot. How to i change the saved email id and password? I tried to use --email= flag with appcfg.py, but it dint worked.

Answer 1

Use the --no_cookies flag, e.g.:

python2.5 /path/to/google_appengine/appcfg.py --no_cookies update myapp

From the documentation:

–no_cookies

Do not store the administrator sign-in credentials as a cookie;
prompt for a password every time.

I’ve just tested: using this flag will bring up a prompt for your email address as well.