What is the most efficient way to compare similar contents in two lists?

[Chris Angelico]

On Tue, Jun 14, 2011 at 2:04 AM, Steven D'Aprano
<steve+comp.lang.python at pearwood.info> wrote:
> On Tue, 14 Jun 2011 01:39:50 +1000, Chris Angelico wrote:
>
>> Python: "Batteries Included".
>>
>> (Although Python 3 is "Most of the batteries you're used to, included".)
>
> Oh gods, you're not going to bring up sort(cmp=...) again are you????
>
> /me ducks and covers

Ha! That *lengthy* thread started fairly soon after I joined this
list. It was highly... informative. I learned a bit about Python, and
a lot about python-list, from the posts there.

Chris Angelico