The "Other Resources" section lists these resources:


Guido's Essays: out of date, the first is about 2.2, by the fifth, we're into Python 1.5.

New-style Classes: this means "new" as of 2.2, and the linked page begins, "Unfortunately, new-style classes have not yet been integrated into Python's standard documention."

These two links should be removed from the doc sidebar, they don't add much over the documentation itself.