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Re: Python Worst Practices

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Date Sat, 28 Feb 2015 23:45:05 +1100
Subject Re: Python Worst Practices
From Chris Angelico <rosuav@gmail.com>
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On Sat, Feb 28, 2015 at 9:39 PM, BartC <bc@freeuk.com> wrote:
> (People here would like PL/I then which apparently has *no* reserved words,
> so you can write: "if if=then then ...")

Likewise REXX has no reserved words; also, SQL went part-way there,
with the notion of "non-reserved keywords". For example, "ORDER" and
"BY" are reserved keywords, so they are unavailable as table/column
names, but "NULLS" is non-reserved. You could use it, if you wanted
to, but it's a syntactic element in some contexts. You can say "ORDER
BY some_column NULLS FIRST" or "NULLS LAST" to affect the ordering;
you can even say "ORDER BY NULLS NULLS FIRST", which will sort by a
column named NULLS, in ascending order, but counting NULL as lower
than everything (instead of higher than everything). Given the style
of SQL, it'd be insanely restrictive if it had to have everything be
either a keyword or nothing, so this is a good half-way-house.

ChrisA

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Thread

Re: Python Worst Practices Travis Griggs <travisgriggs@gmail.com> - 2015-02-27 13:21 -0800
  Re: Python Worst Practices Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2015-02-28 12:09 +1100
    Re: Python Worst Practices sohcahtoa82@gmail.com - 2015-02-27 17:32 -0800
      Re: Python Worst Practices Chris Angelico <rosuav@gmail.com> - 2015-02-28 12:44 +1100
        Re: Python Worst Practices Christian Gollwitzer <auriocus@gmx.de> - 2015-03-03 09:51 +0100
          Re: Python Worst Practices Chris Angelico <rosuav@gmail.com> - 2015-03-03 22:12 +1100
            Re: Python Worst Practices Christian Gollwitzer <auriocus@gmx.de> - 2015-03-03 23:46 +0100
              Re: Python Worst Practices Chris Angelico <rosuav@gmail.com> - 2015-03-04 10:12 +1100
                Re: Python Worst Practices Christian Gollwitzer <auriocus@gmx.de> - 2015-03-04 21:27 +0100
    Re: Python Worst Practices Dan Sommers <dan@tombstonezero.net> - 2015-02-28 04:42 +0000
      Re: Python Worst Practices Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2015-02-28 17:36 +1100
        Re: Python Worst Practices Dan Sommers <dan@tombstonezero.net> - 2015-02-28 07:50 +0000
          Re: Python Worst Practices Chris Angelico <rosuav@gmail.com> - 2015-02-28 19:55 +1100
        Re: Python Worst Practices Ethan Furman <ethan@stoneleaf.us> - 2015-02-27 23:51 -0800
          Re: Python Worst Practices Marko Rauhamaa <marko@pacujo.net> - 2015-02-28 10:50 +0200
      Re: Python Worst Practices Ian Kelly <ian.g.kelly@gmail.com> - 2015-02-28 01:48 -0700
      Re: Python Worst Practices Chris Angelico <rosuav@gmail.com> - 2015-02-28 19:58 +1100
    Re: Python Worst Practices Tim Chase <python.list@tim.thechases.com> - 2015-02-27 21:50 -0600
      Re: Python Worst Practices Cousin Stanley <cousinstanley@gmail.com> - 2015-02-28 09:03 -0700
        Re: Python Worst Practices Rustom Mody <rustompmody@gmail.com> - 2015-02-28 08:16 -0800
        Re: Python Worst Practices MRAB <python@mrabarnett.plus.com> - 2015-02-28 17:56 +0000
        Re: Python Worst Practices Ethan Furman <ethan@stoneleaf.us> - 2015-02-28 10:13 -0800
        Re: Python Worst Practices Tim Chase <python.list@tim.thechases.com> - 2015-02-28 12:30 -0600
        Re: Python Worst Practices Tim Chase <python.list@tim.thechases.com> - 2015-02-28 12:39 -0600
    Re: Python Worst Practices BartC <bc@freeuk.com> - 2015-02-28 10:39 +0000
      Re: Python Worst Practices Chris Angelico <rosuav@gmail.com> - 2015-02-28 23:45 +1100
        Re: Python Worst Practices Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2015-03-01 13:29 +1300

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