> ...faster and often clearer than lambdas.

    $ python -m timeit 'import string;from operator import itemgetter;[itemgetter('slice') for x in string.letters]'
    100000 loops, best of 3: 14.2 usec per loop
    $ python -m timeit 'import string;from operator import itemgetter;[lambda x: x.slice for x in string.letters]'
    100000 loops, best of 3: 10.4 usec per loop

> Also: namedtuple is great instead of "using classes as attribute containers".

Er, OK. Just don't look at the implementation[1]. Cannot be unseen.

[1]: http://hg.python.org/cpython/file/2.7/Lib/collections.py#l23...