Re: Verbose and flexible args and kwargs syntax

Date	2011-12-12 13:04 -0500
From	Dave Angel <d@davea.name>
Subject	Re: Verbose and flexible args and kwargs syntax
References	<mailman.3520.1323647085.27778.python-list@python.org> <26632.1323705344@alphaville.dokosmarshall.org> <CAPTjJmoiiYrvOa0wZKNQDjYATXa3F=_aVapf7SwoPyaq7W-T6w@mail.gmail.com> <201112121246.07854.gheskett@wdtv.com>
Newsgroups	comp.lang.python
Message-ID	<mailman.3564.1323713392.27778.python-list@python.org> (permalink)

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On 12/12/2011 12:46 PM, gene heskett wrote:
> On Monday, December 12, 2011 12:44:27 PM Chris Angelico did opine:
> <snip>
>> This is the basis of the grade-school "casting out nines" method of
>> checking arithmetic. Set c=9 and you can calculate N%c fairly readily
>> (digit sum - I'm assuming here that the arithmetic is being done in
>> decimal); the sum of the remainders should equal the remainder of the
>> sum, but there's the inherent assumption that if the remainders sum to
>> something greater than nine, you digit-sum it to get the true
>> remainder.
>>
>> (Technically the sum of the digits of a base-10 number is not the same
>> as that number mod 9, but if you accept that 0 == 9, it works fine.)
>>
>> ChrisA
> And that is precisely the reason I have failed to understand why the 1-10
> decimal system seems to have hung on for several hundred years when it is
> clearly broken.
>
I assume this was facetious, but in case not, I'd point out that any 
other number base will have similar modulo characteristics, except for 
base 2, where all numbers are congruent modulo 1, so it doesn't do much 
for checking values.

For example, if you were using a number system of base 8, you could do 
"casting out sevens" by adding the digits together.

-- 

DaveA

Thread

Verbose and flexible args and kwargs syntax Eelco Hoogendoorn <hoogendoorn.eelco@gmail.com> - 2011-12-12 00:44 +0100
  Re: Verbose and flexible args and kwargs syntax Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-12-12 01:11 +0000
    Re: Verbose and flexible args and kwargs syntax Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2011-12-12 21:09 +1300
      Re: Verbose and flexible args and kwargs syntax Terry Reedy <tjreedy@udel.edu> - 2011-12-12 10:36 -0500
      Re: Verbose and flexible args and kwargs syntax Nick Dokos <nicholas.dokos@hp.com> - 2011-12-12 10:55 -0500
      Re: Verbose and flexible args and kwargs syntax Arnaud Delobelle <arnodel@gmail.com> - 2011-12-12 16:15 +0000
      Re: Verbose and flexible args and kwargs syntax Chris Angelico <rosuav@gmail.com> - 2011-12-13 03:16 +1100
      Re: Verbose and flexible args and kwargs syntax Chris Angelico <rosuav@gmail.com> - 2011-12-13 03:19 +1100
    Re: Verbose and flexible args and kwargs syntax Eelco <hoogendoorn.eelco@gmail.com> - 2011-12-12 04:21 -0800
      Re: Verbose and flexible args and kwargs syntax Ian Kelly <ian.g.kelly@gmail.com> - 2011-12-12 11:09 -0700
        Re: Verbose and flexible args and kwargs syntax Eelco <hoogendoorn.eelco@gmail.com> - 2011-12-12 10:17 -0800
          Re: Verbose and flexible args and kwargs syntax Ian Kelly <ian.g.kelly@gmail.com> - 2011-12-12 11:35 -0700
            Re: Verbose and flexible args and kwargs syntax Eelco <hoogendoorn.eelco@gmail.com> - 2011-12-12 10:51 -0800
              Re: Verbose and flexible args and kwargs syntax Ian Kelly <ian.g.kelly@gmail.com> - 2011-12-12 17:34 -0700
                Re: Verbose and flexible args and kwargs syntax Eelco <hoogendoorn.eelco@gmail.com> - 2011-12-13 00:31 -0800
            Re: Verbose and flexible args and kwargs syntax Eelco <hoogendoorn.eelco@gmail.com> - 2011-12-12 11:05 -0800
              Re: Verbose and flexible args and kwargs syntax Eelco <hoogendoorn.eelco@gmail.com> - 2011-12-12 11:20 -0800
      Re: Verbose and flexible args and kwargs syntax alex23 <wuwei23@gmail.com> - 2011-12-12 15:54 -0800
      Re: Verbose and flexible args and kwargs syntax Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-12-13 02:43 +0000
        Re: Verbose and flexible args and kwargs syntax Chris Angelico <rosuav@gmail.com> - 2011-12-13 14:08 +1100
        Re: Verbose and flexible args and kwargs syntax Ian Kelly <ian.g.kelly@gmail.com> - 2011-12-12 21:52 -0700
        Re: Verbose and flexible args and kwargs syntax Eelco <hoogendoorn.eelco@gmail.com> - 2011-12-13 01:15 -0800
          Re: Verbose and flexible args and kwargs syntax Eelco <hoogendoorn.eelco@gmail.com> - 2011-12-13 01:50 -0800
            Re: Verbose and flexible args and kwargs syntax Arnaud Delobelle <arnodel@gmail.com> - 2011-12-13 10:15 +0000
              Re: Verbose and flexible args and kwargs syntax Eelco <hoogendoorn.eelco@gmail.com> - 2011-12-13 02:39 -0800
              Re: Verbose and flexible args and kwargs syntax Eelco <hoogendoorn.eelco@gmail.com> - 2011-12-13 02:46 -0800
                Re: Verbose and flexible args and kwargs syntax Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-12-13 11:28 +0000
                Re: Verbose and flexible args and kwargs syntax Eelco <hoogendoorn.eelco@gmail.com> - 2011-12-13 04:19 -0800
          Re: Verbose and flexible args and kwargs syntax Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-12-13 11:13 +0000
            Re: Verbose and flexible args and kwargs syntax Eelco <hoogendoorn.eelco@gmail.com> - 2011-12-13 04:47 -0800
              Re: Verbose and flexible args and kwargs syntax Chris Angelico <rosuav@gmail.com> - 2011-12-14 00:14 +1100
                Re: Verbose and flexible args and kwargs syntax Eelco <hoogendoorn.eelco@gmail.com> - 2011-12-13 05:35 -0800
    Re: Verbose and flexible args and kwargs syntax "OKB (not okblacke)" <brenNOSPAMbarn@NObrenSPAMbarn.net> - 2011-12-12 19:45 +0000
  Re: Verbose and flexible args and kwargs syntax Jussi Piitulainen <jpiitula@ling.helsinki.fi> - 2011-12-12 12:59 +0200
    Re: Verbose and flexible args and kwargs syntax Eelco <hoogendoorn.eelco@gmail.com> - 2011-12-12 03:22 -0800
      Re: Verbose and flexible args and kwargs syntax Jussi Piitulainen <jpiitula@ling.helsinki.fi> - 2011-12-12 13:46 +0200
    Re: Verbose and flexible args and kwargs syntax Eelco <hoogendoorn.eelco@gmail.com> - 2011-12-12 03:18 -0800
    Re: Verbose and flexible args and kwargs syntax Terry Reedy <tjreedy@udel.edu> - 2011-12-12 10:39 -0500
      Re: Verbose and flexible args and kwargs syntax Jussi Piitulainen <jpiitula@ling.helsinki.fi> - 2011-12-12 18:52 +0200
        Re: Verbose and flexible args and kwargs syntax Eelco <hoogendoorn.eelco@gmail.com> - 2011-12-12 09:29 -0800
          Re: Verbose and flexible args and kwargs syntax Jussi Piitulainen <jpiitula@ling.helsinki.fi> - 2011-12-12 20:09 +0200
          % is not an operator [was Re: Verbose and flexible args and kwargs syntax] Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-12-14 03:18 +0000
            Re: % is not an operator [was Re: Verbose and flexible args and kwargs syntax] Eelco <hoogendoorn.eelco@gmail.com> - 2011-12-13 23:49 -0800
              Re: % is not an operator [was Re: Verbose and flexible args and kwargs syntax] Arnaud Delobelle <arnodel@gmail.com> - 2011-12-14 11:55 +0000
                Re: % is not an operator [was Re: Verbose and flexible args and kwargs syntax] Eelco <hoogendoorn.eelco@gmail.com> - 2011-12-14 04:33 -0800
                Re: % is not an operator [was Re: Verbose and flexible args and kwargs syntax] Arnaud Delobelle <arnodel@gmail.com> - 2011-12-14 16:13 +0000
                Re: % is not an operator [was Re: Verbose and flexible args and kwargs syntax] Eelco <hoogendoorn.eelco@gmail.com> - 2011-12-14 09:15 -0800
                Re: % is not an operator [was Re: Verbose and flexible args and kwargs syntax] rusi <rustompmody@gmail.com> - 2011-12-14 19:43 -0800
                Re: % is not an operator [was Re: Verbose and flexible args and kwargs syntax] Eelco <hoogendoorn.eelco@gmail.com> - 2011-12-15 01:44 -0800
                Re: % is not an operator [was Re: Verbose and flexible args and kwargs syntax] rusi <rustompmody@gmail.com> - 2011-12-15 02:56 -0800
                Re: % is not an operator [was Re: Verbose and flexible args and kwargs syntax] Eelco <hoogendoorn.eelco@gmail.com> - 2011-12-15 03:37 -0800
            Re: % is not an operator [was Re: Verbose and flexible args and kwargs syntax] Jussi Piitulainen <jpiitula@ling.helsinki.fi> - 2011-12-14 10:56 +0200
              Re: % is not an operator [was Re: Verbose and flexible args and kwargs syntax] Eelco <hoogendoorn.eelco@gmail.com> - 2011-12-14 02:09 -0800
                Re: % is not an operator [was Re: Verbose and flexible args and kwargs syntax] Jussi Piitulainen <jpiitula@ling.helsinki.fi> - 2011-12-14 14:22 +0200
                Re: % is not an operator [was Re: Verbose and flexible args and kwargs syntax] Eelco <hoogendoorn.eelco@gmail.com> - 2011-12-14 04:41 -0800
                Re: % is not an operator [was Re: Verbose and flexible args and kwargs syntax] Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-12-14 12:38 +0000
                Re: % is not an operator [was Re: Verbose and flexible args and kwargs syntax] Eelco <hoogendoorn.eelco@gmail.com> - 2011-12-14 05:29 -0800
                Re: % is not an operator [was Re: Verbose and flexible args and kwargs syntax] Chris Angelico <rosuav@gmail.com> - 2011-12-15 00:39 +1100
                Re: % is not an operator [was Re: Verbose and flexible args and kwargs syntax] Ian Kelly <ian.g.kelly@gmail.com> - 2011-12-14 08:45 -0700
                Re: % is not an operator [was Re: Verbose and flexible args and kwargs syntax] Terry Reedy <tjreedy@udel.edu> - 2011-12-14 15:57 -0500
              Re: % is not an operator [was Re: Verbose and flexible args and kwargs syntax] rusi <rustompmody@gmail.com> - 2011-12-14 03:47 -0800
                Re: % is not an operator [was Re: Verbose and flexible args and kwargs syntax] Chris Angelico <rosuav@gmail.com> - 2011-12-14 22:53 +1100
                Re: % is not an operator [was Re: Verbose and flexible args and kwargs syntax] Jussi Piitulainen <jpiitula@ling.helsinki.fi> - 2011-12-14 15:09 +0200
              Re: % is not an operator [was Re: Verbose and flexible args and kwargs syntax] Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-12-14 12:32 +0000
                Re: % is not an operator [was Re: Verbose and flexible args and kwargs syntax] Jussi Piitulainen <jpiitula@ling.helsinki.fi> - 2011-12-14 15:21 +0200
                Re: % is not an operator [was Re: Verbose and flexible args and kwargs syntax] Robert Kern <robert.kern@gmail.com> - 2011-12-15 10:47 +0000
                Re: % is not an operator [was Re: Verbose and flexible args and kwargs syntax] Eelco <hoogendoorn.eelco@gmail.com> - 2011-12-15 02:59 -0800
                Re: % is not an operator [was Re: Verbose and flexible args and kwargs syntax] alex23 <wuwei23@gmail.com> - 2011-12-15 18:14 -0800
                Re: % is not an operator [was Re: Verbose and flexible args and kwargs syntax] MRAB <python@mrabarnett.plus.com> - 2011-12-16 02:58 +0000
                Re: % is not an operator [was Re: Verbose and flexible args and kwargs syntax] Eelco <hoogendoorn.eelco@gmail.com> - 2011-12-16 02:36 -0800
                Re: % is not an operator [was Re: Verbose and flexible args and kwargs syntax] Chris Angelico <rosuav@gmail.com> - 2011-12-16 16:01 +1100
                Re: % is not an operator [was Re: Verbose and flexible args and kwargs syntax] alex23 <wuwei23@gmail.com> - 2011-12-15 21:30 -0800
                Re: % is not an operator [was Re: Verbose and flexible args and kwargs syntax] Eelco <hoogendoorn.eelco@gmail.com> - 2011-12-16 02:25 -0800
                Re: % is not an operator [was Re: Verbose and flexible args and kwargs syntax] rusi <rustompmody@gmail.com> - 2011-12-16 09:38 -0800
                Re: % is not an operator [was Re: Verbose and flexible args and kwargs syntax] Eelco <hoogendoorn.eelco@gmail.com> - 2011-12-16 11:40 -0800
                Re: % is not an operator [was Re: Verbose and flexible args and   kwargs syntax] Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2011-12-17 12:49 +1300
                Re: % is not an operator [was Re: Verbose and flexible args and kwargs syntax] Eelco <hoogendoorn.eelco@gmail.com> - 2011-12-16 16:00 -0800
                Re: % is not an operator [was Re: Verbose and flexible args and kwargs syntax] Roy Smith <roy@panix.com> - 2011-12-16 19:03 -0500
                Re: % is not an operator [was Re: Verbose and flexible args and   kwargs syntax] Grant Edwards <invalid@invalid.invalid> - 2011-12-17 20:02 +0000
                Re: % is not an operator [was Re: Verbose and flexible args and kwargs syntax] Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-12-17 00:54 +0000
                Re: % is not an operator [was Re: Verbose and flexible args and kwargs syntax] David Robinow <drobinow@gmail.com> - 2011-12-16 21:11 -0500
                Re: % is not an operator [was Re: Verbose and flexible args and kwargs syntax] Chris Angelico <rosuav@gmail.com> - 2011-12-15 21:58 +1100
                Re: % is not an operator [was Re: Verbose and flexible args and kwargs syntax] rusi <rustompmody@gmail.com> - 2011-12-15 03:04 -0800
                Re: % is not an operator [was Re: Verbose and flexible args and kwargs syntax] Jussi Piitulainen <jpiitula@ling.helsinki.fi> - 2011-12-15 14:48 +0200
                Re: % is not an operator [was Re: Verbose and flexible args and kwargs syntax] Terry Reedy <tjreedy@udel.edu> - 2011-12-15 18:15 -0500
            Re: % is not an operator Paul Rudin <paul.nospam@rudin.co.uk> - 2011-12-14 09:43 +0000
        Re: Verbose and flexible args and kwargs syntax Nick Dokos <nicholas.dokos@hp.com> - 2011-12-12 12:58 -0500
          Re: Verbose and flexible args and kwargs syntax Jussi Piitulainen <jpiitula@ling.helsinki.fi> - 2011-12-14 11:04 +0200
  Re: Verbose and flexible args and kwargs syntax gene heskett <gheskett@wdtv.com> - 2011-12-12 12:46 -0500
  Re: Verbose and flexible args and kwargs syntax Dave Angel <d@davea.name> - 2011-12-12 13:04 -0500
  Re: Verbose and flexible args and kwargs syntax Nick Dokos <nicholas.dokos@hp.com> - 2011-12-12 13:02 -0500

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