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Re: Question:Programming a game grid ...

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Date Thu, 28 Jun 2012 09:35:59 +1000
Subject Re: Question:Programming a game grid ...
From Chris Angelico <rosuav@gmail.com>
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On Thu, Jun 28, 2012 at 9:24 AM, David <dwblas@gmail.com> wrote:
> First, you should be getting an error on
> vars()[var] = Button(f3, text = "00", bg = "white")
> as vars() has not been declared and it does not appear to be valid Python syntax.

It's valid syntax, but highly inadvisable. What it does is call the
vars() function, then dereference its argument for assignment -
perfectly legal when the function returns a dictionary, which vars
does. But check the docs:

http://docs.python.org/library/functions.html#vars

It's intended to be read, NOT written. It's entirely possible that
this works at module level, but should not be relied on. Also, other
Python implementations or even other versions of the same Python could
behave differently.

ChrisA

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Thread

Question:Programming a game grid ... iconoclast011 <iconoclast011@gmail.com> - 2012-06-27 17:21 -0500
  Re: Question:Programming a game grid ... David <dwblas@gmail.com> - 2012-06-27 16:24 -0700
    Re: Question:Programming a game grid ... Chris Angelico <rosuav@gmail.com> - 2012-06-28 09:35 +1000
    Re: Question:Programming a game grid ... Chris Angelico <rosuav@gmail.com> - 2012-06-28 09:37 +1000
    Re: Question:Programming a game grid ... Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2012-06-28 00:15 +0000
      Re: Question:Programming a game grid ... woooee@gmail.com - 2012-06-27 19:15 -0700
        Re: Question:Programming a game grid ... alex23 <wuwei23@gmail.com> - 2012-06-27 19:43 -0700
          Re: Question:Programming a game grid ... iconoclast011 <iconoclast011@gmail.com> - 2012-06-27 21:59 -0500
            Re: Question:Programming a game grid ... Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2012-06-28 02:08 -0400
          Re: Question:Programming a game grid ... Temia Eszteri <lamialily@cleverpun.com> - 2012-06-27 20:03 -0700
        Re: Question:Programming a game grid ... Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2012-06-28 04:39 +0000
  Re: Question:Programming a game grid ... MRAB <python@mrabarnett.plus.com> - 2012-06-28 00:43 +0100
  Re: Question:Programming a game grid ... alex23 <wuwei23@gmail.com> - 2012-06-27 17:31 -0700
  Re: Question:Programming a game grid ... Rick Johnson <rantingrickjohnson@gmail.com> - 2012-06-27 21:04 -0700

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