Re: How to isolate a constant?

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From	Dennis Lee Bieber <wlfraed@ix.netcom.com>
Subject	Re: How to isolate a constant?
Date	Tue, 25 Oct 2011 17:08:24 -0700
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On Tue, 25 Oct 2011 14:05:49 -0600, Ian Kelly <ian.g.kelly@gmail.com>
declaimed the following in gmane.comp.python.general:

> 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.
> 

Where's the line form to split those who'd prefer the first vs the
second result in this sample <G>:

>>> unExpected = "What about a string"
>>> firstToLast = unExpected[:]
>>> repr(firstToLast)
"'What about a string'"
>>> explicitList = list(unExpected)
>>> repr(explicitList)
"['W', 'h', 'a', 't', ' ', 'a', 'b', 'o', 'u', 't', ' ', 'a', ' ', 's',
't', 'r', 'i', 'n', 'g']"
>>> 
-- 
	Wulfraed                 Dennis Lee Bieber         AF6VN
        wlfraed@ix.netcom.com    HTTP://wlfraed.home.netcom.com/

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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