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Re: how to implement a queue-like container with sort function

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Date Mon, 2 Dec 2013 23:04:51 +1100
Subject Re: how to implement a queue-like container with sort function
From Chris Angelico <rosuav@gmail.com>
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On Mon, Dec 2, 2013 at 10:58 PM, Ned Batchelder <ned@nedbatchelder.com> wrote:
> Yes, a Queue object has a queue attribute:
>
>     >>> import Queue
>     >>> q = Queue.Queue()
>     >>> q.queue
>     deque([])
>
> But you shouldn't use it.  It's part of the implementation of Queue, not
> meant for you to use directly.  In particular, if you use it directly, you
> are skipping all synchronization, which is the main reason to use a Queue in
> the first place.

I should apologize here; when the OP said "queue", I immediately
noticed that I could import that and use it, and mistakenly started my
testing on that, instead of using the deque type. It's deque that
should be used here. Queue is just a wrapper around deque that adds
functionality that has nothing to do with what's needed here.

ChrisA

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Thread

how to implement a queue-like container  with sort function iMath <redstone-cold@163.com> - 2013-11-28 17:54 -0800
  Re: how to implement a queue-like container with sort function Chris Angelico <rosuav@gmail.com> - 2013-11-29 13:03 +1100
    Re: how to implement a queue-like container with sort function Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-11-29 03:32 +0000
  Re: how to implement a queue-like container  with sort function iMath <redstone-cold@163.com> - 2013-11-28 18:04 -0800
    Re: how to implement a queue-like container with sort function Chris Angelico <rosuav@gmail.com> - 2013-11-29 13:06 +1100
      Re: how to implement a queue-like container with sort function iMath <redstone-cold@163.com> - 2013-11-28 18:32 -0800
    Re: how to implement a queue-like container  with sort function Cameron Simpson <cs@zip.com.au> - 2013-11-29 17:19 +1100
  Re: how to implement a queue-like container  with sort function MRAB <python@mrabarnett.plus.com> - 2013-11-29 02:23 +0000
  Re: how to implement a queue-like container  with sort function Terry Reedy <tjreedy@udel.edu> - 2013-11-28 21:31 -0500
  Re: how to implement a queue-like container  with sort function Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2013-11-29 17:53 +1300
  Re: how to implement a queue-like container  with sort function iMath <redstone-cold@163.com> - 2013-11-29 04:33 -0800
    Re: how to implement a queue-like container  with sort function Mark Lawrence <breamoreboy@yahoo.co.uk> - 2013-11-29 14:57 +0000
      Re: how to implement a queue-like container  with sort function iMath <redstone-cold@163.com> - 2013-12-02 03:41 -0800
        Re: how to implement a queue-like container  with sort function Ned Batchelder <ned@nedbatchelder.com> - 2013-12-02 06:58 -0500
        Re: how to implement a queue-like container with sort function Chris Angelico <rosuav@gmail.com> - 2013-12-02 23:04 +1100
        Re: how to implement a queue-like container with sort function Ned Batchelder <ned@nedbatchelder.com> - 2013-12-02 07:26 -0500

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