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Thu Apr 24 08:43:50 CEST 2014 · https://mail.python.org/pipermail/python-dev/2014-April/134250.html

On Thu, Apr 24, 2014 at 1:59 PM, Łukasz Langa <lukasz at langa.pl> wrote:
> On Apr 17, 2014, at 11:49 AM, Brett Cannon <bcannon at gmail.com> wrote:
>
>> Think of tuples like a struct in C, lists like an array.
>
>
> I generally agree but it’s a bit more complex, for instance when you have a
> homogenous sequence but want it to be hashable. I just hit that today and
> felt a little bad using tuple because of that “struct” mindset :)

All you need is a "frozenlist" type, parallel to "frozenset":

frozenlist = tuple # Magic!

some_dict[frozenlist([...])] = some_value

ChrisA

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[Python-Dev] List vs Tuple / Homogeneous vs Heterogeneous