Re: What is xrange?

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Date	Sat, 30 Jul 2011 23:42:50 -0700
From	Ethan Furman <ethan@stoneleaf.us>
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To	Dennis Lee Bieber <wlfraed@ix.netcom.com>
Subject	Re: What is xrange?
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Dennis Lee Bieber wrote:
> On Sat, 30 Jul 2011 21:36:41 +1000, Steven D'Aprano
> <steve+comp.lang.python@pearwood.info> declaimed the following in
> gmane.comp.python.general:
> 
> 
>> Probably because nobody thought about it, but if it had been proposed to
>> change xrange into an iterator, I'm pretty confident that the suggestion
>> would have been rejected. xrange objects might be lazily generated, but
>> they're also sequence types: you can get their length, and you can index
>> them. (However you can't slice them.) Iterators are not sequence types:
>> they aren't indexable and you can't get their length.
>>
> 	Ah, but what did they change range() into -- I seem to recall
> reading the Python 3.x turned the regular range() into something else...
> (from Python <3.x returning a full list)

 From the What's New docs, in the Views And Iterators Instead Of Lists 
section:

range() now behaves like xrange() used to behave, except it works with 
values of arbitrary size. The latter no longer exists.

~Ethan~

Thread

What is xrange? Billy Mays <noway@nohow.com> - 2011-07-29 15:36 -0400
  Re: What is xrange? harrismh777 <harmar@member.fsf.org> - 2011-07-29 14:47 -0500
  Re: What is xrange? Thomas Jollans <t@jollybox.de> - 2011-07-29 22:31 +0200
  Re: What is xrange? Jerry Hill <malaclypse2@gmail.com> - 2011-07-29 16:36 -0400
  Re: What is xrange? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-07-30 11:22 +1000
    Re: What is xrange? Brian Blais <bblais@bryant.edu> - 2011-07-30 06:23 -0400
      Re: What is xrange? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-07-30 21:36 +1000
        Re: What is xrange? Brian Blais <bblais@bryant.edu> - 2011-07-30 09:46 -0400
        Re: What is xrange? Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2011-07-30 17:06 -0700
        Re: What is xrange? Chris Angelico <rosuav@gmail.com> - 2011-07-31 01:10 +0100
        Re: What is xrange? Ethan Furman <ethan@stoneleaf.us> - 2011-07-30 23:42 -0700
      Re: What is xrange? Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2011-07-31 12:18 +1200

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