Path: csiph.com!usenet.pasdenom.info!weretis.net!feeder4.news.weretis.net!npeer.de.kpn-eurorings.net!npeer-ng0.de.kpn-eurorings.net!xlned.com!feeder7.xlned.com!newsfeed.xs4all.nl!newsfeed3.news.xs4all.nl!xs4all!newsgate.cistron.nl!newsgate.news.xs4all.nl!post.news.xs4all.nl!not-for-mail Return-Path: X-Original-To: python-list@python.org Delivered-To: python-list@mail.python.org X-Spam-Status: OK 0.051 X-Spam-Evidence: '*H*': 0.91; '*S*': 0.01; 'wrapper': 0.09; 'cc:addr :python-list': 0.11; 'attribute:': 0.16; 'deque': 0.16; 'from:addr:rosuav': 0.16; 'from:name:chris angelico': 0.16; 'skipping': 0.16; 'wrote:': 0.18; 'meant': 0.20; '>>>': 0.22; 'import': 0.22; 'cc:addr:python.org': 0.22; 'adds': 0.24; "shouldn't": 0.24; 'subject:like': 0.24; 'mon,': 0.24; 'cc:2**0': 0.24; 'header:In-Reply-To:1': 0.27; 'testing': 0.29; 'dec': 0.30; 'message-id:@mail.gmail.com': 0.30; 'directly,': 0.31; 'noticed': 0.34; 'could': 0.34; 'subject:with': 0.35; 'but': 0.35; 'received:google.com': 0.35; 'should': 0.36; 'needed': 0.38; 'pm,': 0.38; 'that,': 0.38; 'first': 0.61; 'batchelder': 0.84; 'mistakenly': 0.91; 'to:none': 0.92; 'directly.': 0.95; '2013': 0.98 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:cc :content-type; bh=Vf8KwJn9PyHKjiNZlL1rnn2ALd5spYDhCnYzhxuov3Y=; b=t/mOpdroz2anXG9Kevexq4Qfv3HeBH60qbbi+JDN2FwNOSBVQ/um0dT7mcaZqyA2vb DxuN1L92Wy+WOen5i4hjgYlkabFRAG+ktRIQKahyvzIgbqBy299mdpP3lTgUTFzTynl6 nQzwTIswBjMwIxSphsG0y1WD3/EUC/Zn33xNmzfKPgFwsfNeBaqJJ/ykAp7G3Sco0FwK /WTzICND1OvXVhfuq/974TxghSUMW3NZ5MjiyK1Ykm9zpTgFsy4nLNx2YkApKljwWw6S RDV8Q3iIHadV7h/i/6Bp0V2sRtW5PCDn3XOeaLTBKHgCN+fmxxRLQBG+B0TdLo3wKExo f32Q== MIME-Version: 1.0 X-Received: by 10.66.65.134 with SMTP id x6mr3407885pas.142.1385985891118; Mon, 02 Dec 2013 04:04:51 -0800 (PST) In-Reply-To: References: <0c445e44-25c7-42b9-8c62-c30428261251@googlegroups.com> <39b48b0b-5c0a-42d9-922f-27987386764b@googlegroups.com> Date: Mon, 2 Dec 2013 23:04:51 +1100 Subject: Re: how to implement a queue-like container with sort function From: Chris Angelico Cc: "python-list@python.org" Content-Type: text/plain; charset=UTF-8 X-BeenThere: python-list@python.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: General discussion list for the Python programming language List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Newsgroups: comp.lang.python Message-ID: Lines: 20 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1385985900 news.xs4all.nl 15991 [2001:888:2000:d::a6]:35318 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:60862 On Mon, Dec 2, 2013 at 10:58 PM, Ned Batchelder 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