Path: csiph.com!usenet.pasdenom.info!weretis.net!feeder4.news.weretis.net!news.mixmin.net!eweka.nl!hq-usenetpeers.eweka.nl!xlned.com!feeder7.xlned.com!news2.euro.net!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 0.001 X-Spam-Evidence: '*H*': 1.00; '*S*': 0.00; 'python.': 0.02; 'subject:: [': 0.03; 'objects,': 0.07; 'python': 0.09; 'received:80.91': 0.09; 'received:80.91.229': 0.09; 'received:gmane.org': 0.09; 'received:list': 0.09; 'scripts,': 0.09; 'looked': 0.10; '(rather': 0.16; 'decode': 0.16; 'message-id:@dough.gmane.org': 0.16; 'play.': 0.16; 'received:80.91.229.3': 0.16; 'received:plane.gmane.org': 0.16; 'retrieving': 0.16; 'stored.': 0.16; 'storing': 0.16; 'wrote:': 0.17; 'subject:] ': 0.19; 'addition,': 0.21; 'effort.': 0.22; 'proprietary': 0.23; 'non': 0.24; 'header:User-Agent:1': 0.26; '(e.g.': 0.27; 'set.': 0.27; 'header:X-Complaints-To:1': 0.28; 'pickle': 0.29; 'writes:': 0.29; 'objects': 0.29; 'classes': 0.30; 'that.': 0.30; '(and': 0.32; 'received:comcast.net': 0.33; 'to:addr:python-list': 0.33; 'knowledge': 0.33; 'typically': 0.33; 'formats': 0.35; 'something': 0.35; 'received:org': 0.36; 'should': 0.36; 'too': 0.36; 'does': 0.37; 'rather': 0.37; 'data': 0.37; 'store': 0.38; 'object': 0.38; 'to:addr:python.org': 0.39; 'application': 0.40; 'header:Received:5': 0.40; 'easy': 0.60; 'different': 0.63; 'great': 0.64; 'results': 0.65; 'advantages': 0.71; 'email addr:yahoo.co.uk': 0.84; 'subject:Results': 0.91 X-Injected-Via-Gmane: http://gmane.org/ To: python-list@python.org From: Neal Becker Subject: Re: [OT] Simulation Results Managment Date: Sun, 15 Jul 2012 07:24:59 -0400 References: <4834becc-783a-4af2-b94a-2b95c39d6be3@googlegroups.com> <16cb8524-63ad-4755-93e2-3f45e98c9af5@googlegroups.com> <87k3y5h6qp.fsf@handshake.de> Mime-Version: 1.0 Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 7Bit X-Gmane-NNTP-Posting-Host: c-68-33-202-49.hsd1.md.comcast.net User-Agent: KNode/4.8.4 X-BeenThere: python-list@python.org X-Mailman-Version: 2.1.12 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: 27 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1342351513 news.xs4all.nl 6856 [2001:888:2000:d::a6]:41015 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:25347 Dieter Maurer wrote: > moogyd@yahoo.co.uk writes: >> ... >> Does pickle have any advantages over json/yaml? > > It can store and retrieve almost any Python object with almost no effort. > > Up to you whether you see it as an advantage to be able to store > objects rather than (almost) pure data with a rather limited type set. > > > Of course, "pickle" is a proprietary Python format. Not so easy to > decode it with something else than Python. In addition, when > you store objects, the retrieving application must know the classes > of those objects -- and its knowledge should not be too different > from how those classes looked when the objects have been stored. > > > I like very much to work with objects (rather than with pure data). > Therefore, I use "pickle" when I know that the storing and retrieving > applications all use Python. I use pure (and restricted) data formats > when non Python applications come into play. Typically what I want to do is post-process (e.g. plot) results using python scripts, so using pickle is great for that.