Appengine and python error

[Calado]

I'm following this tutorial:
http://code.google.com/intl/pt-PT/appengine/articles/python/getting_started_with_tasks_api.html

On task 3 when I do everything and when I go to http://localhost:8080
it gives me this a full page of errors: <type 'exceptions.TypeError'>
http://imageshare.web.id/images/jb0fby55brbxmi9q6bd.png

I also tried this: http://code.google.com/p/google-api-python-client/source/browse/samples/prediction/prediction.py
and I got the same error.

[Ernesto Oltra]

I don't know if it's the problem or not, but you should use Python2.5, not v2.6.

[Walter Antolini]

Hi, I use the 2.5 and I never had problems