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Re: Trees

Date 2015-01-21 08:26 -0600
From Tim Chase <python.list@tim.thechases.com>
Subject Re: Trees
References (3 earlier) <mailman.17906.1421827045.18130.python-list@python.org> <b37db482-1c2d-4b17-9b0b-0e37537482ef@googlegroups.com> <CAPTjJmqxKcMS-aquDsvMb60Mg26yAiB=oQsFXFJh2pbr6vPKWA@mail.gmail.com> <20150121065503.5555c910@bigbox.christie.dr> <CAPTjJmp4sbmmTc9n98QO=TqU=RB4r5GbwVL7HhbFw8MjNrbXJA@mail.gmail.com>
Newsgroups comp.lang.python
Message-ID <mailman.17914.1421850254.18130.python-list@python.org> (permalink)

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On 2015-01-22 00:01, Chris Angelico wrote:
> On Wed, Jan 21, 2015 at 11:55 PM, Tim Chase
>>> Looks like {1,2,3} works for me.
>>
>> That hasn't always worked:
> 
> the argument's still fairly weak when it's alongside a pipe-dream
> desire to use specific mathematical Unicode characters in source
> code, because that's clearly a 3.x-only feature (where source code
> is Unicode text rather than ASCII).

I'm 100% in agreement that Unicode characters are a pipe-dream.  If I
wanted that, I'd use APL ;-)

> Nobody's going to moan "It's silly that we have to use 1 and 0
> instead of nice keywords True and False" on the basis that True and
> False didn't exist in Python 2.0. At very least, use 2.7 before you
> complain; preferably, use 3.4 (or 3.5).

While 2.0 is certainly antiquated, Red Hat Enterprise Linux (RHEL) is
often considered the best definition of what's considered "oldest
supported production environment".  RHEL v4 ships with Py2.3 and one
can still obtain extended support for this environment.  RHEL v5 is
actively supported (i.e., without the need for an extended-support
contract) and ships with Py2.4 so I generally try to at least support
2.4 when I'm writing code that could possibly end deploy on a server
such as RHEL5.   Some of us are stuck supporting code in such
antediluvian environments. :-/  Then again, if you're like me and
working in such environments, you already know to use set() instead
of {...} and to avoid the "with" statement, and the like. :)

Sources:
http://en.wikipedia.org/wiki/Red_Hat_Enterprise_Linux#Version_history

http://turbogears.org/1.0/docs/Install/Nix.html#centos-rhel RHEL=2.3

https://wiki.archlinux.org/index.php/python#Old_versions RHEL5=2.4

-tkc

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Re: Trees Terry Reedy <tjreedy@udel.edu> - 2015-01-20 01:08 -0500
  Re: Trees Marko Rauhamaa <marko@pacujo.net> - 2015-01-20 11:45 +0200
    Re: Trees Paul Rubin <no.email@nospam.invalid> - 2015-01-20 10:14 -0800
      Re: Trees Marko Rauhamaa <marko@pacujo.net> - 2015-01-20 22:26 +0200
    Re: Trees Stephen Hansen <me+python@ixokai.io> - 2015-01-20 23:56 -0800
      Re: Trees Marko Rauhamaa <marko@pacujo.net> - 2015-01-21 10:35 +0200
      Re: Trees Rustom Mody <rustompmody@gmail.com> - 2015-01-21 04:09 -0800
        Re: Trees Chris Angelico <rosuav@gmail.com> - 2015-01-21 23:35 +1100
          Re: Trees Rustom Mody <rustompmody@gmail.com> - 2015-01-21 07:24 -0800
        Re: Trees Tim Chase <python.list@tim.thechases.com> - 2015-01-21 06:55 -0600
        Re: Trees Chris Angelico <rosuav@gmail.com> - 2015-01-22 00:01 +1100
        Re: Trees Tim Chase <python.list@tim.thechases.com> - 2015-01-21 08:26 -0600
        Re: Trees Chris Angelico <rosuav@gmail.com> - 2015-01-22 01:31 +1100
        Re: Trees Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2015-01-22 01:47 +1100
          Re: Trees Ian Kelly <ian.g.kelly@gmail.com> - 2015-01-21 09:15 -0700
          Re: Trees Ian Kelly <ian.g.kelly@gmail.com> - 2015-01-21 10:27 -0700
  Re: Trees Rustom Mody <rustompmody@gmail.com> - 2015-01-20 05:33 -0800
    Re: Trees Rustom Mody <rustompmody@gmail.com> - 2015-01-20 05:51 -0800
    Re: Trees Marko Rauhamaa <marko@pacujo.net> - 2015-01-20 16:15 +0200
      Re: Trees Rustom Mody <rustompmody@gmail.com> - 2015-01-20 06:35 -0800
    Re: Trees Ian Kelly <ian.g.kelly@gmail.com> - 2015-01-20 10:19 -0700
      Re: Trees Rustom Mody <rustompmody@gmail.com> - 2015-01-20 10:15 -0800
        Re: Trees Rustom Mody <rustompmody@gmail.com> - 2015-01-20 10:35 -0800
    Re: Trees Mario <marfig@gmail.com> - 2015-01-20 22:47 +0100
      Re: Trees Rustom Mody <rustompmody@gmail.com> - 2015-01-20 17:23 -0800
        Re: Trees Paul Rubin <no.email@nospam.invalid> - 2015-01-20 17:49 -0800
          Re: Trees Rustom Mody <rustompmody@gmail.com> - 2015-01-20 18:03 -0800
            Re: Trees Paul Rubin <no.email@nospam.invalid> - 2015-01-21 14:27 -0800
              Re: Trees Rustom Mody <rustompmody@gmail.com> - 2015-01-21 21:17 -0800
        Re: Trees Ian Kelly <ian.g.kelly@gmail.com> - 2015-01-21 15:54 -0700
          Re: Trees Rustom Mody <rustompmody@gmail.com> - 2015-01-21 21:20 -0800
            Re: Trees Ian Kelly <ian.g.kelly@gmail.com> - 2015-01-22 00:01 -0700
            Re: Trees Ian Kelly <ian.g.kelly@gmail.com> - 2015-01-21 23:56 -0700
          Re: Trees Paul Rubin <no.email@nospam.invalid> - 2015-01-21 23:16 -0800
            Re: Trees Rustom Mody <rustompmody@gmail.com> - 2015-01-22 08:54 -0800
      Re: Trees Terry Reedy <tjreedy@udel.edu> - 2015-01-20 21:19 -0500
        Re: Trees Mario Figueiredo <marfig@gmail.com> - 2015-01-21 14:05 +0000

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