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Sun May 19 16:40:13 CEST 2013 · https://mail.python.org/pipermail/python-dev/2013-May/126336.html

On Sun, May 19, 2013 at 11:01 PM, Antoine Pitrou <solipsis at pitrou.net> wrote:
> The main use case seems to be the OrderedDict constructor itself.
> Otherwise, I can't think of any situation where I would've wanted it.

I've had a couple related to populating other mappings where order
matters, at least from a predictability and readability perspective,
even if it's not strictly required from a standards compliance point
of view (think writing XML attributes, etc).

I quite liked the idea of a simple flag attribute on function objects
that the interpreter checked, with a decorator in functools (or even
the builtins) to set it. It's not a particularly elegant solution, but
it would get the job done with minimal performance impact on existing
functions.

Cheers,
Nick.

--
Nick Coghlan   |   ncoghlan at gmail.com   |   Brisbane, Australia

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[Python-Dev] Ordering keyword dicts