[katrielalex]

A lot of the points here are really quite out of date. (For example, defaultdict has been part of the stdlib since 2.5, and namedtuple since 2.6.)

[JackC]

Funny, those were the same two I noticed.

The document says it was written shortly before Python 2.5, which came out in September 2006. So it's probably about 9 years old.

[vog]

Indeed, it would be less confusing if the submission title had a "(2006)" suffix.

[Orangeair]

In addition, we now have enums (Since Python 3.4) and an equivalent to the ternary operator (val1 if condition else val2).

[narsil]

An Abstract Base Class module (abc) was added in 2.6 as well. https://docs.python.org/2/library/abc.html