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Re: I'm wrong or Will we fix the ducks limp?

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From Antoon Pardon <antoon.pardon@rece.vub.ac.be>
Newsgroups comp.lang.python
Subject Re: I'm wrong or Will we fix the ducks limp?
Date Thu, 9 Jun 2016 13:19:18 +0200
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Op 09-06-16 om 12:53 schreef BartC:
> On 09/06/2016 10:46, Antoon Pardon wrote:
>> Op 09-06-16 om 09:36 schreef Steven D'Aprano:
>
>>> Your example demonstrates object mutation, not assignment.
>>
>> Generally assignment and mutation don't contradict each other.
>> So IMO the cause is the same, a mutation. In some languages you
>> can mutate your variable through an assignment and in others you
>> can't.
>
> I think this is what is confusing you.
>
> Mutation is like repairing or customising my car.
>
> Full assignment is like buying a new car.

I think you are confused. Full assignment of C struct or
Pascal record is the same as mutating all individual
attributes. You don't get a new record/instance as in
Python. You replace the value of the attributes with
something else.

As far a language semantics are concerned, you get the
(new) car at scope entry, all assigments later are
mutations.

You may think of assignment as like buying a new car,
that is not how the semantics of languages like pascal
and C are defined.

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Thread

I'm wrong or Will we fix the ducks limp? Sayth Renshaw <flebber.crue@gmail.com> - 2016-06-03 07:20 -0700
  Re: I'm wrong or Will we fix the ducks limp? Paul Rudin <paul.nospam@rudin.co.uk> - 2016-06-03 15:34 +0100
    Re: I'm wrong or Will we fix the ducks limp? Sayth Renshaw <flebber.crue@gmail.com> - 2016-06-03 08:04 -0700
      Re: I'm wrong or Will we fix the ducks limp? Ian Kelly <ian.g.kelly@gmail.com> - 2016-06-03 09:35 -0600
        Re: I'm wrong or Will we fix the ducks limp? Sayth Renshaw <flebber.crue@gmail.com> - 2016-06-03 08:50 -0700
          Re: I'm wrong or Will we fix the ducks limp? Michael Selik <michael.selik@gmail.com> - 2016-06-03 16:04 +0000
            Re: I'm wrong or Will we fix the ducks limp? Sayth Renshaw <flebber.crue@gmail.com> - 2016-06-03 16:06 -0700
              Re: I'm wrong or Will we fix the ducks limp? Steven D'Aprano <steve@pearwood.info> - 2016-06-04 12:31 +1000
                Re: I'm wrong or Will we fix the ducks limp? Christopher Reimer <christopher_reimer@icloud.com> - 2016-06-03 19:50 -0700
                Re: I'm wrong or Will we fix the ducks limp? Steven D'Aprano <steve@pearwood.info> - 2016-06-04 19:12 +1000
      Re: I'm wrong or Will we fix the ducks limp? Matt Wheeler <m@funkyhat.org> - 2016-06-03 15:54 +0000
        Re: I'm wrong or Will we fix the ducks limp? Lawrence D’Oliveiro <lawrencedo99@gmail.com> - 2016-06-04 20:17 -0700
          Re: I'm wrong or Will we fix the ducks limp? Steven D'Aprano <steve@pearwood.info> - 2016-06-05 16:37 +1000
            Re: I'm wrong or Will we fix the ducks limp? Marko Rauhamaa <marko@pacujo.net> - 2016-06-05 11:01 +0300
              Re: I'm wrong or Will we fix the ducks limp? Random832 <random832@fastmail.com> - 2016-06-05 13:53 -0400
                Re: I'm wrong or Will we fix the ducks limp? Marko Rauhamaa <marko@pacujo.net> - 2016-06-05 22:20 +0300
                Re: I'm wrong or Will we fix the ducks limp? Random832 <random832@fastmail.com> - 2016-06-05 17:16 -0400
                Re: I'm wrong or Will we fix the ducks limp? Marko Rauhamaa <marko@pacujo.net> - 2016-06-06 11:13 +0300
                Re: I'm wrong or Will we fix the ducks limp? Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2016-06-06 13:08 +1200
                Re: I'm wrong or Will we fix the ducks limp? Lawrence D’Oliveiro <lawrencedo99@gmail.com> - 2016-06-05 18:28 -0700
            Re: I'm wrong or Will we fix the ducks limp? Random832 <random832@fastmail.com> - 2016-06-05 13:42 -0400
              Re: I'm wrong or Will we fix the ducks limp? Marko Rauhamaa <marko@pacujo.net> - 2016-06-05 22:38 +0300
              Re: I'm wrong or Will we fix the ducks limp? Steven D'Aprano <steve@pearwood.info> - 2016-06-06 13:52 +1000
                Re: I'm wrong or Will we fix the ducks limp? Random832 <random832@fastmail.com> - 2016-06-06 00:08 -0400
                Re: I'm wrong or Will we fix the ducks limp? Steven D'Aprano <steve@pearwood.info> - 2016-06-07 01:42 +1000
                Re: I'm wrong or Will we fix the ducks limp? Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2016-06-07 17:42 +1200
                Re: I'm wrong or Will we fix the ducks limp? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2016-06-07 20:18 +1000
                Re: I'm wrong or Will we fix the ducks limp? Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2016-06-07 14:32 +0200
                Re: I'm wrong or Will we fix the ducks limp? Steven D'Aprano <steve@pearwood.info> - 2016-06-08 02:03 +1000
                Re: I'm wrong or Will we fix the ducks limp? Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2016-06-08 10:08 +0200
                Re: I'm wrong or Will we fix the ducks limp? Random832 <random832@fastmail.com> - 2016-06-07 11:33 -0400
                Re: I'm wrong or Will we fix the ducks limp? Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2016-06-08 09:53 +0200
                Re: I'm wrong or Will we fix the ducks limp? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2016-06-08 18:47 +1000
                Re: I'm wrong or Will we fix the ducks limp? Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2016-06-08 11:41 +0200
                Re: I'm wrong or Will we fix the ducks limp? BartC <bc@freeuk.com> - 2016-06-08 11:33 +0100
                Re: I'm wrong or Will we fix the ducks limp? Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2016-06-08 13:01 +0200
                Re: I'm wrong or Will we fix the ducks limp? BartC <bc@freeuk.com> - 2016-06-08 13:34 +0100
                Re: I'm wrong or Will we fix the ducks limp? Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2016-06-08 16:18 +0200
                Re: I'm wrong or Will we fix the ducks limp? Marko Rauhamaa <marko@pacujo.net> - 2016-06-08 19:37 +0300
                Re: I'm wrong or Will we fix the ducks limp? Lawrence D’Oliveiro <lawrencedo99@gmail.com> - 2016-06-08 19:49 -0700
                Re: I'm wrong or Will we fix the ducks limp? Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2016-06-09 09:30 +0200
                Re: I'm wrong or Will we fix the ducks limp? Marko Rauhamaa <marko@pacujo.net> - 2016-06-09 12:19 +0300
                Re: I'm wrong or Will we fix the ducks limp? Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2016-06-09 12:19 +0200
                Re: I'm wrong or Will we fix the ducks limp? Marko Rauhamaa <marko@pacujo.net> - 2016-06-09 16:13 +0300
                Re: I'm wrong or Will we fix the ducks limp? lists@juliensalort.org (Julien Salort) - 2016-06-09 13:46 +0200
                Re: I'm wrong or Will we fix the ducks limp? Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2016-06-09 14:35 +0200
                Re: I'm wrong or Will we fix the ducks limp? Paul Rudin <paul.nospam@rudin.co.uk> - 2016-06-09 11:00 +0100
                Re: I'm wrong or Will we fix the ducks limp? Marko Rauhamaa <marko@pacujo.net> - 2016-06-09 15:56 +0300
                Re: I'm wrong or Will we fix the ducks limp? Paul Rudin <paul.nospam@rudin.co.uk> - 2016-06-09 15:09 +0100
                Re: I'm wrong or Will we fix the ducks limp? Marko Rauhamaa <marko@pacujo.net> - 2016-06-09 18:14 +0300
                Re: I'm wrong or Will we fix the ducks limp? Paul Rudin <paul.nospam@rudin.co.uk> - 2016-06-09 17:22 +0100
                Re: I'm wrong or Will we fix the ducks limp? Paul Rudin <paul.nospam@rudin.co.uk> - 2016-06-09 17:48 +0100
                Re: I'm wrong or Will we fix the ducks limp? Marko Rauhamaa <marko@pacujo.net> - 2016-06-09 22:35 +0300
                Re: I'm wrong or Will we fix the ducks limp? Jussi Piitulainen <jussi.piitulainen@helsinki.fi> - 2016-06-10 08:31 +0300
                Re: I'm wrong or Will we fix the ducks limp? Random832 <random832@fastmail.com> - 2016-06-09 14:36 -0400
                Re: I'm wrong or Will we fix the ducks limp? BartC <bc@freeuk.com> - 2016-06-08 18:29 +0100
                Re: I'm wrong or Will we fix the ducks limp? Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2016-06-09 09:50 +0200
                Re: I'm wrong or Will we fix the ducks limp? BartC <bc@freeuk.com> - 2016-06-09 10:10 +0100
                Re: I'm wrong or Will we fix the ducks limp? Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2016-06-09 11:55 +0200
                Re: I'm wrong or Will we fix the ducks limp? BartC <bc@freeuk.com> - 2016-06-09 11:48 +0100
                Re: I'm wrong or Will we fix the ducks limp? Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2016-06-09 13:08 +0200
                Re: I'm wrong or Will we fix the ducks limp? BartC <bc@freeuk.com> - 2016-06-09 13:25 +0100
                Re: I'm wrong or Will we fix the ducks limp? Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2016-06-09 14:48 +0200
                Re: I'm wrong or Will we fix the ducks limp? Rustom Mody <rustompmody@gmail.com> - 2016-06-08 05:36 -0700
                Re: I'm wrong or Will we fix the ducks limp? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2016-06-09 17:36 +1000
                Re: I'm wrong or Will we fix the ducks limp? Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2016-06-09 11:46 +0200
                Re: I'm wrong or Will we fix the ducks limp? Marko Rauhamaa <marko@pacujo.net> - 2016-06-09 13:03 +0300
                Re: I'm wrong or Will we fix the ducks limp? BartC <bc@freeuk.com> - 2016-06-09 11:42 +0100
                Re: I'm wrong or Will we fix the ducks limp? BartC <bc@freeuk.com> - 2016-06-09 11:53 +0100
                Re: I'm wrong or Will we fix the ducks limp? Jussi Piitulainen <jussi.piitulainen@helsinki.fi> - 2016-06-09 13:56 +0300
                Re: I'm wrong or Will we fix the ducks limp? Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2016-06-09 13:19 +0200
                Re: I'm wrong or Will we fix the ducks limp? BartC <bc@freeuk.com> - 2016-06-09 13:17 +0100
                Re: I'm wrong or Will we fix the ducks limp? Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2016-06-09 14:59 +0200
                Re: I'm wrong or Will we fix the ducks limp? Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2016-06-06 18:37 +1200
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                Re: I'm wrong or Will we fix the ducks limp? Random832 <random832@fastmail.com> - 2016-06-06 12:57 -0400
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                Re: I'm wrong or Will we fix the ducks limp? Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2016-06-07 19:03 +1200
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                Re: I'm wrong or Will we fix the ducks limp? Jussi Piitulainen <jussi.piitulainen@helsinki.fi> - 2016-06-07 11:41 +0300
                Re: I'm wrong or Will we fix the ducks limp? BartC <bc@freeuk.com> - 2016-06-07 11:49 +0100
                Re: I'm wrong or Will we fix the ducks limp? Random832 <random832@fastmail.com> - 2016-06-07 11:14 -0400
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                Re: I'm wrong or Will we fix the ducks limp? Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2016-06-07 18:33 +1200
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                Re: I'm wrong or Will we fix the ducks limp? BartC <bc@freeuk.com> - 2016-06-06 22:55 +0100
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                Re: I'm wrong or Will we fix the ducks limp? Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2016-06-06 11:23 +0200
                Re: I'm wrong or Will we fix the ducks limp? Marko Rauhamaa <marko@pacujo.net> - 2016-06-06 13:10 +0300
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  Re: I'm wrong or Will we fix the ducks limp? Nagy László Zsolt <gandalf@shopzeus.com> - 2016-06-03 18:11 +0200
    Re: I'm wrong or Will we fix the ducks limp? Sayth Renshaw <flebber.crue@gmail.com> - 2016-06-03 16:11 -0700
  Re: I'm wrong or Will we fix the ducks limp? Terry Reedy <tjreedy@udel.edu> - 2016-06-03 22:12 -0400
  Re: I'm wrong or Will we fix the ducks limp? jfine2358@gmail.com - 2016-06-06 07:32 -0700

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