Path: csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!news.mixmin.net!feed.xsnews.nl!border-2.ams.xsnews.nl!newsfeed.xs4all.nl!newsfeed5.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 0.003 X-Spam-Evidence: '*H*': 0.99; '*S*': 0.00; 'append': 0.07; 'calls.': 0.07; 'missed': 0.09; 'added.': 0.09; 'source,': 0.15; '-tkc': 0.16; 'deletions': 0.16; 'from:addr:python.list': 0.16; 'from:addr:tim.thechases.com': 0.16; 'from:name:tim chase': 0.16; 'message-id:@tim.thechases.com': 0.16; 'received:70.251': 0.16; 'received:dsl.rcsntx.swbell.net': 0.16; 'received:rcsntx.swbell.net': 0.16; 'received:swbell.net': 0.16; 'thanks,': 0.18; 'trying': 0.21; "i'd": 0.22; 'header:User- Agent:1': 0.26; '[1]': 0.27; "i'm": 0.29; 'code': 0.31; 'url:python': 0.32; 'file': 0.32; 'to:addr:python-list': 0.33; 'consistent': 0.35; 'subject:?': 0.35; 'url:org': 0.36; 'url:library': 0.36; 'keeps': 0.37; 'url:docs': 0.38; 'to:addr:python.org': 0.39; 'end': 0.40; 'remove': 0.61; 'received:50.22': 0.84; 'to:name:python': 0.84 Date: Thu, 27 Sep 2012 10:59:06 -0500 From: Tim Chase User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.24) Gecko/20111120 Icedove/3.1.16 MIME-Version: 1.0 To: Python Subject: Ordering of mailbox.mbox contents? Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - boston.accountservergroup.com X-AntiAbuse: Original Domain - python.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - tim.thechases.com X-Source: X-Source-Args: X-Source-Dir: 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: 18 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1348761486 news.xs4all.nl 6954 [2001:888:2000:d::a6]:34386 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:30300 Reading through the docs[1] and the source, I'm trying to discern if there's any guarantee that the contents of a mbox file remain in a consistent ordering across add/delete calls. As best I can tell from the source, it _looks_ like the code keeps an existing file in the same order, deletions remove without changing the order, and additions append at the end of the file in the order they're added. That's what I'd expect. Is this accurate, or have I missed anything? Thanks, -tkc [1] http://docs.python.org/library/mailbox.html#mbox