Authentication doesn't work: Login Error

[GrayFace]

I have a site at http://sites.google.com/site/sergroj/
I tried the following steps:

1. Copied https://github.com/google/gdata-python-client/blob/master/samples/sites/sites_example.py to gdata-python-client-master\src\
2. Run c:\Python27\python.exe sites_example.py
3. Left the Google Apps input empty
4. Entered "sergroj" as site name
5. Chose 1 (login/password) as authentication method
6. Entered login/password. Tried both "sergroj" and "sergroj@gmail.com".
   The result is "Login Error".

[qiuyimo]

I have same notice, 'login error'.
Who can help me?

[MeanEYE]

This is a deprecated library. Check this for more information.