Path: csiph.com!newsfeed.hal-mli.net!feeder3.hal-mli.net!newsfeed.hal-mli.net!feeder1.hal-mli.net!newsfeed.xs4all.nl!newsfeed6.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 0.000 X-Spam-Evidence: '*H*': 1.00; '*S*': 0.00; 'subject:: [': 0.03; 'json': 0.07; 'subject:application': 0.07; 'subject:file': 0.07; 'python': 0.09; 'compact': 0.09; 'port,': 0.09; 'to:addr:comp.lang.python': 0.09; 'cc:addr:python-list': 0.10; 'subject:python': 0.11; "(can't": 0.16; 'appreciated!': 0.16; 'benjamin': 0.16; 'expandable': 0.16; 'instances,': 0.16; 'module?': 0.16; 'pointers,': 0.16; 'portable,': 0.16; 'space)': 0.16; 'wrote:': 0.17; 'subject:] ': 0.19; 'all,': 0.21; 'struct': 0.22; 'wednesday,': 0.22; 'cc:2**0': 0.23; 'cc:no real name:2**0': 0.24; 'cc:addr:python.org': 0.25; 'header:In-Reply-To:1': 0.25; 'header:User-Agent:1': 0.26; 'subject:list': 0.28; 'class': 0.29; 'file': 0.32; 'generally': 0.32; 'received:google.com': 0.34; 'received:209.85': 0.35; 'received:209': 0.37; 'data': 0.37; 'object': 0.38; 'advice': 0.39; 'easily': 0.39; 'subject:-': 0.40; 'other.': 0.64; 'application?': 0.84; 'compact,': 0.84 Newsgroups: comp.lang.python Date: Wed, 26 Sep 2012 06:01:29 -0700 (PDT) In-Reply-To: Complaints-To: groups-abuse@google.com Injection-Info: glegroupsg2000goo.googlegroups.com; posting-host=122.167.222.73; posting-account=uPFZNQoAAAAm9w7z13q1SjWNKNjztdcD References: User-Agent: G2/1.0 X-Google-Web-Client: true X-Google-IP: 122.167.222.73 MIME-Version: 1.0 Subject: Re: [python-list] python application file format From: Ramchandra Apte To: comp.lang.python@googlegroups.com Content-Type: text/plain; charset=ISO-8859-1 Cc: python-list@python.org 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: , Message-ID: Lines: 32 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1348664499 news.xs4all.nl 6977 [2001:888:2000:d::a6]:57794 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:30194 On Wednesday, 26 September 2012 18:29:14 UTC+5:30, Benjamin Jessup wrote: > Hello all, > > > > What do people recommend for a file format for a python desktop > > application? Data is complex with 100s/1000s of class instances, which > > reference each other. > > > > Write the file with struct module? (Rebuild object pointers, safe, > > compact, portable, not expandable without reserved space) > > > > Use cPickle with a module/class whitelist? (Can't easily port, not > > entirely safe, compact enough, expandable) > > > > Use JSON or similar? (Rebuild object pointers, portable, expandable, size?) > > > > Any advice is greatly appreciated! JSON is generally used for configuration.