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http://docs.python.org/3.0/whatsnew/3.0.html says it lists whats new, but in my opinion, it only lists differences, so has does anybody know of any completely new Python features, introduced in release 3.x?
To Avoid Confusion, I will define a completely new feature as something that has never been used in any other code before, somehting you walk up to and go “Ooh, shiny!”. E.g. a function to make aliens invade, etc.
The section New Syntax lists, well, the new syntax in Python 3.x. I think it’s debatable sometimes whether stuff is new or changed. E.g. exception chaining (PEP 3134): is that a new feature, or is it a change to the exception machinery?
In general, I recommend looking at all the PEPs listed in the document. They are the major changes/new features.