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Groups > comp.lang.python > #90509

Re: anomaly

Newsgroups comp.lang.python
Date 2015-05-12 17:56 -0700
References (1 earlier) <mailman.318.1431276220.12865.python-list@python.org> <c681b3ce-2727-4aa9-ad8a-369c662395a3@googlegroups.com> <554F9525.5040101@digipen.edu> <mailman.350.1431339365.12865.python-list@python.org> <ac141288-b7c7-49fb-8191-c5247b46a49e@googlegroups.com>
Message-ID <7734399a-fe22-4aec-b75c-bcc9b74418dd@googlegroups.com> (permalink)
Subject Re: anomaly
From Rustom Mody <rustompmody@gmail.com>

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On Wednesday, May 13, 2015 at 6:17:41 AM UTC+5:30, John Ladasky wrote:
> On Monday, May 11, 2015 at 3:16:16 AM UTC-7, Antoon Pardon wrote:
> 
> > Try overriding None, True or False in python3 and see what happens.
> 
> Much fun was able to be had in Python 2, though:
> 
>     Python 2.7.6 (default, Mar 22 2014, 22:59:56) 
>     [GCC 4.8.2] on linux2
>     Type "help", "copyright", "credits" or "license" for more information.
>     >>> True = False
>     >>> True
>     False
> 
> 
> Every politician's dream!

I actually had a use case for this [Or I am a politician]
Scheme had two True-s #T was the proper true and plain T was the legacy from
Lisp which was deprecated.
To make sure students would use #T and not T I had sneaked in somewhere
[dont exactly remember where/how] a
(set! T nil) 
ie T = nil

As far as I was concerned it was moving from deprecation to all-out error
However 2 decades later and some of those (victims) still remember:
You made TRUE into FALSE!!

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Thread

Re: anomaly Ian Kelly <ian.g.kelly@gmail.com> - 2015-05-10 10:42 -0600
  Re: anomaly Rustom Mody <rustompmody@gmail.com> - 2015-05-10 09:48 -0700
    Re: anomaly Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-05-10 18:21 +0100
    Re: anomaly Gary Herron <gherron@digipen.edu> - 2015-05-10 10:28 -0700
      Re: anomaly Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2015-05-11 13:19 +1000
    Re: anomaly boB Stepp <robertvstepp@gmail.com> - 2015-05-10 14:12 -0500
      Re: anomaly Mel Wilson <mwilson@the-wire.com> - 2015-05-11 13:37 +0000
        Re: anomaly Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2015-05-12 02:35 +1000
          Re: anomaly Mel Wilson <mwilson@the-wire.com> - 2015-05-11 20:48 +0000
            Re: anomaly Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2015-05-12 12:18 +1000
    Re: anomaly Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-05-11 08:40 +0100
    Re: anomaly Chris Angelico <rosuav@gmail.com> - 2015-05-11 17:44 +1000
    Re: anomaly Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2015-05-11 12:15 +0200
      Re: anomaly John Ladasky <john_ladasky@sbcglobal.net> - 2015-05-12 17:47 -0700
        Re: anomaly Rustom Mody <rustompmody@gmail.com> - 2015-05-12 17:56 -0700
          Re: anomaly Paul Rubin <no.email@nospam.invalid> - 2015-05-12 19:16 -0700
            Re: anomaly Rustom Mody <rustompmody@gmail.com> - 2015-05-12 19:31 -0700
    Re: anomaly Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-05-11 11:40 +0100
    Re: anomaly Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2015-05-11 13:39 +0200
      Re: anomaly Marko Rauhamaa <marko@pacujo.net> - 2015-05-11 14:58 +0300
        Re: anomaly Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2015-05-11 15:27 +0200
          Re: anomaly Marko Rauhamaa <marko@pacujo.net> - 2015-05-11 17:03 +0300
            Re: anomaly zipher <dreamingforward@gmail.com> - 2015-05-11 07:56 -0700
              Re: anomaly Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2015-05-11 20:32 -0400
            Re: anomaly Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2015-05-12 13:34 +0200
          Re: anomaly Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2015-05-12 01:44 +1000
            Re: anomaly zipher <dreamingforward@gmail.com> - 2015-05-11 09:17 -0700
            Re: anomaly Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2015-05-11 20:33 -0400
            Re: anomaly Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2015-05-12 14:31 +0200
      Re: anomaly Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2015-05-11 22:34 +1000
        Re: anomaly Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2015-05-11 15:38 +0200
        Re: anomaly Chris Angelico <rosuav@gmail.com> - 2015-05-12 00:13 +1000
        Re: anomaly Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2015-05-12 17:37 +1200
        Re: anomaly Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2015-05-12 13:55 +0200
          Re: anomaly Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2015-05-12 23:56 +1000
            Re: anomaly zipher <dreamingforward@gmail.com> - 2015-05-12 08:34 -0700
              Re: anomaly Chris Angelico <rosuav@gmail.com> - 2015-05-13 01:43 +1000
                Re: anomaly zipher <dreamingforward@gmail.com> - 2015-05-12 20:39 -0700
              Re: anomaly Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-05-12 17:19 +0100
                Re: anomaly zipher <dreamingforward@gmail.com> - 2015-05-13 08:19 -0700
              Re: anomaly Skip Montanaro <skip.montanaro@gmail.com> - 2015-05-12 11:22 -0500
                Re: anomaly Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2015-05-13 13:58 +1000
              Re: anomaly Ian Kelly <ian.g.kelly@gmail.com> - 2015-05-12 12:07 -0600
            Re: anomaly Terry Reedy <tjreedy@udel.edu> - 2015-05-12 16:23 -0400
            Re: anomaly Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2015-05-13 09:07 +0200
          Re: anomaly Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2015-05-13 12:19 +1200
            Re: anomaly Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2015-05-13 09:23 +0200
        Re: anomaly Gary Herron <gherron@digipen.edu> - 2015-05-12 09:07 -0700
    Re: anomaly Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-05-11 12:47 +0100
    Re: anomaly boB Stepp <robertvstepp@gmail.com> - 2015-05-11 07:43 -0500
    Re: anomaly boB Stepp <robertvstepp@gmail.com> - 2015-05-11 07:26 -0500
  Re: anomaly zipher <dreamingforward@gmail.com> - 2015-05-10 17:48 -0700
    Re: anomaly Gary Herron <gherron@digipen.edu> - 2015-05-10 18:07 -0700
      Re: anomaly zipher <dreamingforward@gmail.com> - 2015-05-10 18:18 -0700
        Re: anomaly Chris Angelico <rosuav@gmail.com> - 2015-05-11 11:53 +1000
          Re: anomaly zipher <dreamingforward@gmail.com> - 2015-05-10 19:09 -0700
          Re: anomaly Rustom Mody <rustompmody@gmail.com> - 2015-05-10 19:12 -0700
            Re: anomaly Chris Angelico <rosuav@gmail.com> - 2015-05-11 12:20 +1000
        Re: anomaly BartC <bc@freeuk.com> - 2015-05-11 12:55 +0100

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