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Re: Check if a given value is out of certain range

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To Ian Kelly <ian.g.kelly@gmail.com>
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From Laura Creighton <lac@openend.se>
Subject Re: Check if a given value is out of certain range
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Comments In-reply-to Ian Kelly <ian.g.kelly@gmail.com> message dated "Wed, 30 Sep 2015 14:46:48 -0600."
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In a message of Wed, 30 Sep 2015 14:46:48 -0600, Ian Kelly writes:
>Thought mirrors language. In English, we typically would say "x is not
>between 0 and 10", not "x is either less than 0 or greater than 10".

I wonder if that is regional.

I think you may have stacked things with the 'either' and the 'greater
than'.  'Either' doesn't get used much unless you are heading for
'either x or y but not both'.  And everybody says 'more' even when
'greater than' is arguably more precise.

Around here, I would expect
"x is less than 0 or more than 10"

more often than either of your proposed forms.

But yesterday I hit up the students with the 'what do you find
more readable' question.

There was broad consensus that:

if 0 < x < 10 :
   do_something()
else:
   do_something_else()

was plenty more readable than anything using 'not'

so that the class favourite for readability was:

if 0 < x < 10:
   pass
else:
  complain_out_of_range()

though refactoring the whole lot so that you could have an
out_of_range Exception instead of an if had a large number of
supporters.

Laura

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Re: Check if a given value is out of certain range Rob Gaddi <rgaddi@technologyhighland.invalid> - 2015-09-29 16:48 +0000
  Re: Check if a given value is out of certain range Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-09-29 21:32 +0100
    Re: Check if a given value is out of certain range sohcahtoa82@gmail.com - 2015-09-30 11:31 -0700
      Re: Check if a given value is out of certain range Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-09-30 23:31 +0100
        Re: Check if a given value is out of certain range Steven D'Aprano <steve@pearwood.info> - 2015-10-02 04:18 +1000
          Re: Check if a given value is out of certain range John Gordon <gordon@panix.com> - 2015-10-01 18:20 +0000
            Re: Check if a given value is out of certain range Steven D'Aprano <steve@pearwood.info> - 2015-10-02 05:19 +1000
              Re: Check if a given value is out of certain range John Gordon <gordon@panix.com> - 2015-10-01 19:41 +0000
                Re: Check if a given value is out of certain range Marko Rauhamaa <marko@pacujo.net> - 2015-10-01 22:59 +0300
                Re: Check if a given value is out of certain range Emile van Sebille <emile@fenx.com> - 2015-10-01 13:15 -0700
                Re: Check if a given value is out of certain range John Gordon <gordon@panix.com> - 2015-10-01 21:45 +0000
                Re: Check if a given value is out of certain range Ian Kelly <ian.g.kelly@gmail.com> - 2015-10-01 16:03 -0600
                Re: Check if a given value is out of certain range Chris Kaynor <ckaynor@zindagigames.com> - 2015-10-01 15:48 -0700
                Re: Check if a given value is out of certain range Ian Kelly <ian.g.kelly@gmail.com> - 2015-10-01 16:01 -0600
                Re: Check if a given value is out of certain range Steven D'Aprano <steve@pearwood.info> - 2015-10-03 20:29 +1000
                Re: Check if a given value is out of certain range Bartc <bc@freeuk.com> - 2015-10-03 11:48 +0100
                Re: Check if a given value is out of certain range Laura Creighton <lac@openend.se> - 2015-10-03 14:12 +0200
                Re: Check if a given value is out of certain range Steven D'Aprano <steve@pearwood.info> - 2015-10-03 23:51 +1000
                Re: Check if a given value is out of certain range wxjmfauth@gmail.com - 2015-10-03 07:19 -0700
                Re: Check if a given value is out of certain range Steven D'Aprano <steve@pearwood.info> - 2015-10-05 00:47 +1100
                Re: Check if a given value is out of certain range Rustom Mody <rustompmody@gmail.com> - 2015-10-04 19:28 -0700
                Re: Check if a given value is out of certain range Rustom Mody <rustompmody@gmail.com> - 2015-10-04 19:32 -0700
                Re: Check if a given value is out of certain range Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2015-10-03 11:49 -0400
          Re: Check if a given value is out of certain range Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-10-02 00:34 +0100
      Re: Check if a given value is out of certain range Michiel Overtoom <motoom@xs4all.nl> - 2015-10-05 10:18 +0200
        Re: Check if a given value is out of certain range Jussi Piitulainen <harvesting@makes.email.invalid> - 2015-10-05 13:08 +0300
          Re: Check if a given value is out of certain range Marko Rauhamaa <marko@pacujo.net> - 2015-10-05 14:42 +0300
            Re: Check if a given value is out of certain range Chris Angelico <rosuav@gmail.com> - 2015-10-06 00:10 +1100
              Re: Check if a given value is out of certain range Marko Rauhamaa <marko@pacujo.net> - 2015-10-05 16:25 +0300
      Re: Check if a given value is out of certain range Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-10-05 10:19 +0100
  Re: Check if a given value is out of certain range Random832 <random832@fastmail.com> - 2015-09-29 17:04 -0400
    Re: Check if a given value is out of certain range Luca Menegotto <otlucaDELETE@DELETEyahoo.it> - 2015-09-30 07:57 +0200
  Re: Check if a given value is out of certain range Emile van Sebille <emile@fenx.com> - 2015-09-29 14:07 -0700
  Re: Check if a given value is out of certain range Ian Kelly <ian.g.kelly@gmail.com> - 2015-09-29 15:07 -0600
    Re: Check if a given value is out of certain range Steven D'Aprano <steve@pearwood.info> - 2015-09-30 11:55 +1000
      Re: Check if a given value is out of certain range Random832 <random832@fastmail.com> - 2015-09-29 23:08 -0400
        Re: Check if a given value is out of certain range Steven D'Aprano <steve@pearwood.info> - 2015-09-30 13:14 +1000
          Re: Check if a given value is out of certain range Ian Kelly <ian.g.kelly@gmail.com> - 2015-09-29 23:54 -0600
  Re: Check if a given value is out of certain range Tim Chase <python.list@tim.thechases.com> - 2015-09-29 18:44 -0500
    Re: Check if a given value is out of certain range alister <alister.nospam.ware@ntlworld.com> - 2015-09-30 09:41 +0000
      Re: Check if a given value is out of certain range John Gordon <gordon@panix.com> - 2015-09-30 15:42 +0000
      Re: Check if a given value is out of certain range Grant Edwards <invalid@invalid.invalid> - 2015-09-30 15:56 +0000
        Re: Check if a given value is out of certain range Marko Rauhamaa <marko@pacujo.net> - 2015-09-30 21:06 +0300
          Re: Check if a given value is out of certain range alister <alister.nospam.ware@ntlworld.com> - 2015-09-30 20:19 +0000
            Re: Check if a given value is out of certain range Ian Kelly <ian.g.kelly@gmail.com> - 2015-09-30 14:46 -0600
              Re: Check if a given value is out of certain range alister <alister.nospam.ware@ntlworld.com> - 2015-10-01 08:33 +0000
                Re: Check if a given value is out of certain range Chris Angelico <rosuav@gmail.com> - 2015-10-01 18:37 +1000
                Re: Check if a given value is out of certain range alister <alister.nospam.ware@ntlworld.com> - 2015-10-01 08:48 +0000
                Re: Check if a given value is out of certain range Ian Kelly <ian.g.kelly@gmail.com> - 2015-10-01 08:14 -0600
              Re: Check if a given value is out of certain range Steven D'Aprano <steve@pearwood.info> - 2015-10-02 04:59 +1000
            Re: Check if a given value is out of certain range Laura Creighton <lac@openend.se> - 2015-10-01 09:40 +0200
            Re: Check if a given value is out of certain range Laura Creighton <lac@openend.se> - 2015-10-01 09:58 +0200

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