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Re: frozendict

References <4F332007.9080800@wisc.edu> <jgv9ps$35g$1@dough.gmane.org> <mailman.5558.1328759017.27778.python-list@python.org> <Xns9FF46B35EDFF9duncanbooth@127.0.0.1>
Date 2012-02-09 09:36 -0500
Subject Re: frozendict
From Nathan Rice <nathan.alexander.rice@gmail.com>
Newsgroups comp.lang.python
Message-ID <mailman.5588.1328798176.27778.python-list@python.org> (permalink)

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On Thu, Feb 9, 2012 at 5:33 AM, Duncan Booth
<duncan.booth@invalid.invalid> wrote:
> Nathan Rice <nathan.alexander.rice@gmail.com> wrote:
>
>> I put dicts in sets all the time.  I just tuple the items, but that
>> means you have to re-dict it on the way out to do anything useful with
>> it.  I am too lazy to write a frozendict or import one, but I would
>> use it if it was a builtin.
>>
> I hope you sort the items before putting them in a tuple, otherwise how do
> you handle two identical dicts that return their items in a different
> order?

Two dicts created from the same inputs will return items in the same
arbitrary order.  As long as you don't insert or delete a key you're
fine.


Nathan

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Re: frozendict Nathan Rice <nathan.alexander.rice@gmail.com> - 2012-02-08 22:43 -0500
  Re: frozendict Duncan Booth <duncan.booth@invalid.invalid> - 2012-02-09 10:33 +0000
    Re: frozendict Nathan Rice <nathan.alexander.rice@gmail.com> - 2012-02-09 09:36 -0500
      Re: frozendict Duncan Booth <duncan.booth@invalid.invalid> - 2012-02-09 14:52 +0000
        Re: frozendict Nathan Rice <nathan.alexander.rice@gmail.com> - 2012-02-09 10:19 -0500
          Re: frozendict Duncan Booth <duncan.booth@invalid.invalid> - 2012-02-09 18:47 +0000
        Re: frozendict Ian Kelly <ian.g.kelly@gmail.com> - 2012-02-09 09:35 -0700
          Re: frozendict Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2012-02-10 01:24 +0000
            Re: frozendict Nathan Rice <nathan.alexander.rice@gmail.com> - 2012-02-09 21:30 -0500
            Re: frozendict Terry Reedy <tjreedy@udel.edu> - 2012-02-09 22:33 -0500
            Re: frozendict Chris Angelico <rosuav@gmail.com> - 2012-02-10 21:08 +1100
            Re: frozendict Nathan Rice <nathan.alexander.rice@gmail.com> - 2012-02-10 11:53 -0500
            Re: frozendict Chris Rebert <clp2@rebertia.com> - 2012-02-10 09:00 -0800
            Re: frozendict Nathan Rice <nathan.alexander.rice@gmail.com> - 2012-02-10 13:14 -0500
              Re: frozendict John Nagle <nagle@animats.com> - 2012-02-10 10:57 -0800
                Re: frozendict 88888 Dihedral <dihedral88888@googlemail.com> - 2012-02-10 21:52 -0800
                Re: frozendict John Nagle <nagle@animats.com> - 2012-02-13 13:15 -0800
        Re: frozendict Nathan Rice <nathan.alexander.rice@gmail.com> - 2012-02-09 11:50 -0500

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