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Re: How to isolate a constant?

References <f5539538-d079-4be1-b2c0-d98d3fc6a33f@h39g2000prh.googlegroups.com> <mailman.2138.1319330815.27778.python-list@python.org> <4EA71323.2030500@yahoo.com>
From Ian Kelly <ian.g.kelly@gmail.com>
Date 2011-10-25 14:05 -0600
Subject Re: How to isolate a constant?
Newsgroups comp.lang.python
Message-ID <mailman.2215.1319573187.27778.python-list@python.org> (permalink)

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On Tue, Oct 25, 2011 at 1:50 PM, Alan Meyer <ameyer2@yahoo.com> wrote:
>> Python will copy something only when you tell it to copy. A simple way
>> of copying a list is to slice it:
>>
>> someList = self._someList[:]
>
> And another simple way:
>
>    ...
>    someList = list(self._someList)
>    ...

I generally prefer the latter.  It's clearer, and it guarantees that
the result will be a list, which is usually what you want in these
situations, rather than whatever unexpected type was passed in.

Cheers,
Ian

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Thread

How to isolate a constant? Gnarlodious <gnarlodious@gmail.com> - 2011-10-22 17:26 -0700
  Re: How to isolate a constant? Chris Rebert <clp2@rebertia.com> - 2011-10-22 17:41 -0700
    Re: How to isolate a constant? Gnarlodious <gnarlodious@gmail.com> - 2011-10-22 18:01 -0700
      Re: How to isolate a constant? 88888 Dihedral <dihedral88888@googlemail.com> - 2011-10-22 22:12 -0700
      Re: How to isolate a constant? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-10-23 05:32 +0000
      Re: How to isolate a constant? Paul Rudin <paul.nospam@rudin.co.uk> - 2011-10-23 11:23 +0100
  Re: How to isolate a constant? MRAB <python@mrabarnett.plus.com> - 2011-10-23 01:46 +0100
    Re: How to isolate a constant? Alan Meyer <ameyer2@yahoo.com> - 2011-10-25 15:50 -0400
      Re: How to isolate a constant? Ian Kelly <ian.g.kelly@gmail.com> - 2011-10-25 14:05 -0600
      Re: How to isolate a constant? Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2011-10-25 17:08 -0700
        Re: How to isolate a constant? Mel <mwilson@the-wire.com> - 2011-10-25 22:48 -0400
      Re: How to isolate a constant? Ian Kelly <ian.g.kelly@gmail.com> - 2011-10-25 18:30 -0600
  Re: How to isolate a constant? Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2011-10-22 17:55 -0700

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