Path: csiph.com!usenet.pasdenom.info!gegeweb.org!de-l.enfer-du-nord.net!feeder1.enfer-du-nord.net!feeds.phibee-telecom.net!newsfeed.xs4all.nl!newsfeed2.news.xs4all.nl!xs4all!news.tele.dk!news.tele.dk!small.news.tele.dk!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 0.050 X-Spam-Evidence: '*H*': 0.90; '*S*': 0.00; 'python)': 0.05; 'subject:python': 0.11; 'awk': 0.16; 'file;': 0.16; 'from:addr:rosuav': 0.16; 'from:name:chris angelico': 0.16; 'mon,': 0.16; 'wrote:': 0.17; 'bytes': 0.17; 'feb': 0.19; 'java': 0.21; 'header:In-Reply-To:1': 0.25; 'message-id:@mail.gmail.com': 0.27; 'probably': 0.29; 'class': 0.29; 'file': 0.32; '11,': 0.33; 'to:addr:python-list': 0.33; 'received:google.com': 0.34; 'doing': 0.35; 'pm,': 0.35; 'received:209.85.220': 0.35; 'subject:?': 0.35; 'received:209.85': 0.35; 'others.': 0.36; 'signature': 0.37; 'received:209': 0.37; 'subject:: ': 0.38; 'some': 0.38; 'system.': 0.39; 'to:addr:python.org': 0.39; 'your': 0.60; 'first': 0.61; 'brown': 0.65; 'believe': 0.69; '2013': 0.84; 'signature.': 0.84 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:x-received:in-reply-to:references:date:message-id :subject:from:to:content-type; bh=dHFdsQ4BENjEGM3Hol9z4mjCJy0rQhcwxEXMZUkgudE=; b=fuJ0mPqlU8rG3C4lL7ZwIr6kuoIMZtksqiTVg0xVWVBKGeOrqv2Dw1wMNBG+GMpUNp cEqMgZaqU14qMV15XJERdRJjO+3zrcA7oTWiuxXdHgnmQzGG/oIibLifeU0rUj1kynSa p9DTgXprw6tCKLOsDyO39gKHXB9EfBBoHCYymMYNxTq1dWugNZ1EDUGTp8+0QQhnVs95 //IeFOZ7SXzVsUMvCpEecqj9Cr4zb6VDKmWPeq2z/hyW6SbpUizjBrHuMLxGiP+6zLJv 1hUFIXP93jjqCsCWXksBTA+PKJsFQE+laBWbpj1T06tCBrhjrJKIaKHm4RNCNyUNMdqu jryg== MIME-Version: 1.0 X-Received: by 10.52.67.164 with SMTP id o4mr16653vdt.42.1360564215684; Sun, 10 Feb 2013 22:30:15 -0800 (PST) In-Reply-To: References: Date: Mon, 11 Feb 2013 17:30:15 +1100 Subject: Re: cafebabe python macosx easter egg? From: Chris Angelico To: python-list@python.org Content-Type: text/plain; charset=ISO-8859-1 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: 9 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1360564218 news.xs4all.nl 6849 [2001:888:2000:d::a6]:39344 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:38646 On Mon, Feb 11, 2013 at 5:10 PM, Rodrick Brown wrote: > $ hexdump -n4 -C $(which python) | awk '{print $2 $3 $4 $5 }' I believe that's used as a file signature. All you're doing is looking at the first four bytes of the file; 0xCAFEBABE is used as a signature by Java class files, and some others. You can probably find the same signature in other programs on your system. ChrisA