Re: Deep comparison of dicts - cmp() versus ==?

References	(1 earlier) <mailman.31.1426818822.10327.python-list@python.org> <817c8567-1dbb-436c-8a1f-86446e30d12d@googlegroups.com> <f95ad316-cf77-42e6-b549-ccd185c3fbca@googlegroups.com> <CAPTjJmo8oVpaceqS1y47xLsNduUTE2zSii2VeEL_yrWrMexzbw@mail.gmail.com> <85pp846yr8.fsf@benfinney.id.au>
Date	2015-03-20 16:27 +1100
Subject	Re: Deep comparison of dicts - cmp() versus ==?
From	Chris Angelico <rosuav@gmail.com>
Newsgroups	comp.lang.python
Message-ID	<mailman.36.1426829281.10327.python-list@python.org> (permalink)

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On Fri, Mar 20, 2015 at 4:09 PM, Ben Finney <ben+python@benfinney.id.au> wrote:
> Chris Angelico <rosuav@gmail.com> writes:
>
>> Real numbers, yes […] but not IEEE floating point. Be careful of that
>> distinction; we're talking about computers here, not mythical numbers.
>
> So real numbers are mythical? IEEE floating point values are more real
> than real numbers? Just what are you saying, man?

Poor choice of words. Not "mythical", but "theoretical". Comparisons
in Python are between actual representable numbers, not some
theoretical entire range of reals. Python operators and operations are
not defined in terms of real numbers, but objects.

ChrisA

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Deep comparison of dicts - cmp() versus ==? Victor Hooi <victorhooi@gmail.com> - 2015-03-19 19:00 -0700
  Re: Deep comparison of dicts - cmp() versus ==? Ben Finney <ben+python@benfinney.id.au> - 2015-03-20 13:33 +1100
    Re: Deep comparison of dicts - cmp() versus ==? Victor Hooi <victorhooi@gmail.com> - 2015-03-19 19:57 -0700
      Re: Deep comparison of dicts - cmp() versus ==? Rustom Mody <rustompmody@gmail.com> - 2015-03-19 20:27 -0700
        Re: Deep comparison of dicts - cmp() versus ==? Chris Angelico <rosuav@gmail.com> - 2015-03-20 14:34 +1100
          Re: Deep comparison of dicts - cmp() versus ==? Rustom Mody <rustompmody@gmail.com> - 2015-03-19 20:47 -0700
            Re: Deep comparison of dicts - cmp() versus ==? Chris Angelico <rosuav@gmail.com> - 2015-03-20 15:35 +1100
            Re: Deep comparison of dicts - cmp() versus ==? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2015-03-20 17:35 +1100
              Re: Deep comparison of dicts - cmp() versus ==? Roy Smith <roy@panix.com> - 2015-03-20 08:49 -0400
              Re: Deep comparison of dicts - cmp() versus ==? Rustom Mody <rustompmody@gmail.com> - 2015-03-20 06:46 -0700
        Re: Deep comparison of dicts - cmp() versus ==? Ben Finney <ben+python@benfinney.id.au> - 2015-03-20 16:09 +1100
          Re: Deep comparison of dicts - cmp() versus ==? Rustom Mody <rustompmody@gmail.com> - 2015-03-20 06:35 -0700
            Re: Deep comparison of dicts - cmp() versus ==? Marko Rauhamaa <marko@pacujo.net> - 2015-03-20 16:10 +0200
              OT Intuitionism+Platonism+Mysticism => CS (was Deep comparison of dicts...) Rustom Mody <rustompmody@gmail.com> - 2015-03-20 23:01 -0700
                Re: OT Intuitionism+Platonism+Mysticism => CS (was Deep comparison of dicts...) Marko Rauhamaa <marko@pacujo.net> - 2015-03-21 08:28 +0200
                Re: OT Intuitionism+Platonism+Mysticism => CS (was Deep comparison of dicts...) Rustom Mody <rustompmody@gmail.com> - 2015-03-31 20:53 -0700
        Re: Deep comparison of dicts - cmp() versus ==? Chris Angelico <rosuav@gmail.com> - 2015-03-20 16:27 +1100

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