Attribute error

[Mahendra Prajapati]

Hello,
I'm facing this problem with python class, while practising the python programming language.It creates an attribute error. I use windows 7 OS. i don't why.I just need to know why it gives such an error.please let me know.
Regards 
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.python.org/pipermail/python-list/attachments/20150118/d738e590/attachment.html>