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Groups > comp.lang.python > #86247

Re: list storing variables

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On Mon, 23 Feb 2015 13:55:47 +0100, ast <nomail@invalid.com> wrote:
> hi
>
>>>> a = 2; b = 5
>>>> Li = [a, b]
>>>> 
>>>> Li
> [2, 5]
>>>> a=3
>>>> Li
> [2, 5]
>>>> 
>
> Ok, a change in a or b doesn't impact Li. This works as expected
>
> Is there a way to define a container object able to store some variables 
> so that a change of a variable make a change in this object content ?
>
> I dont need this feature. It is just something I am thinking about.
>
> In C language, there is &A for address of A

The word "variable" brings implications and assumptions that get
people into trouble in Python.  Python doesn't have variables.
It has objects, and you can assign names to objects -- like sticky
notes, as someone in this newsgroup helpfully pointed out long ago.

This way of thinking is significantly different from the familiar
"variable" mind-set of C, but looks similar enough to produce some 
confusion.  For me, the sticky-note analogy helped a lot, and in a
few days many things made more sense.

-- 
To email me, substitute nowhere->runbox, invalid->com.

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list storing variables "ast" <nomail@invalid.com> - 2015-02-23 13:55 +0100
  Re: list storing variables Dave Angel <davea@davea.name> - 2015-02-23 08:24 -0500
  Re: list storing variables Marko Rauhamaa <marko@pacujo.net> - 2015-02-23 15:49 +0200
  Re: list storing variables Peter Pearson <pkpearson@nowhere.invalid> - 2015-02-23 17:35 +0000
    Re: list storing variables Marko Rauhamaa <marko@pacujo.net> - 2015-02-23 20:22 +0200
      Re: list storing variables Peter Otten <__peter__@web.de> - 2015-02-23 19:41 +0100
        Re: list storing variables Marko Rauhamaa <marko@pacujo.net> - 2015-02-23 21:06 +0200
          Re: list storing variables Chris Angelico <rosuav@gmail.com> - 2015-02-24 06:17 +1100
            Re: list storing variables Marko Rauhamaa <marko@pacujo.net> - 2015-02-23 22:25 +0200
          Re: list storing variables Ian Kelly <ian.g.kelly@gmail.com> - 2015-02-23 12:29 -0700
            Re: list storing variables Marko Rauhamaa <marko@pacujo.net> - 2015-02-23 22:38 +0200
  Re: list storing variables Ben Finney <ben+python@benfinney.id.au> - 2015-02-24 09:03 +1100
    Re: list storing variables Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2015-02-24 13:24 +1100
      Re: list storing variables Marko Rauhamaa <marko@pacujo.net> - 2015-02-24 10:18 +0200

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