Hi S Tareq,
You probably want to review the "What's new in Python 3" document,
with close attention to the "Common Stumbing Blocks" section:
http://docs.python.org/3.0/whatsnew/3.0.html#common-stumbling-blocks
Have you read this document already?
_______________________________________________
Tutor maillist - Tutor@python.org
To unsubscribe or change subscription options:
https://mail.python.org/mailman/listinfo/tutor
