Path: csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!feeder.erje.net!eu.feeder.erje.net!xlned.com!feeder1.xlned.com!newsfeed.xs4all.nl!newsfeed1a.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 0.022 X-Spam-Evidence: '*H*': 0.96; '*S*': 0.00; 'installed.': 0.07; 'json': 0.07; 'cc:addr:python-list': 0.11; '127': 0.16; 'from:addr:rosuav': 0.16; 'from:name:chris angelico': 0.16; 'patches': 0.16; 'wrote:': 0.18; 'result.': 0.19; 'cc:addr:python.org': 0.22; 'cc:2**0': 0.24; 'source': 0.25; 'header:In-Reply-To:1': 0.27; 'am,': 0.29; 'message- id:@mail.gmail.com': 0.30; 'checking': 0.33; 'core': 0.34; "i'd": 0.34; 'received:google.com': 0.35; 'version': 0.36; 'system,': 0.38; 'tell': 0.60; 'numbers': 0.61; 'old,': 0.85; 'to:none': 0.92 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=emKalmhaW/ny946joA8+eQR7j6gx3VEdB7QMDrMed/4=; b=emBVkZYG9AnRwVl+dUYLDH1f8BTJY8prNL+2hFFn4+ChZd1rYufGWrpxn8OHkv9dM/ T9Nhp0c0CZdN91Zxlhlx+3VixE2JF4bcWbuPxN54bAdYGx5W+piISpK+MhVR9OtJ5dTo OllU/zRHZSWRD07jYCVo9WCkM90rrtNQuG7dRdBGz6MjQnLCF+msKU8GRL8QlvJxWbRN wTYmNsKlhmctDDvivb7CKuSEd4bMjtH2R3l6GEDxtRJmlJrd6tIHGAQX3Ov7sSO5Oqk7 kzt+kJRNgyCXMOgg0mJnYrSOTfWTNaWVn71qEVpTv8nfJscx8JSJWujXCjk1tqLg3hUQ utIQ== MIME-Version: 1.0 X-Received: by 10.52.93.201 with SMTP id cw9mr909754vdb.80.1401119887029; Mon, 26 May 2014 08:58:07 -0700 (PDT) In-Reply-To: <201405261137.10750.gheskett@wdtv.com> References: <201405261137.10750.gheskett@wdtv.com> Date: Tue, 27 May 2014 01:58:06 +1000 Subject: Re: Verify JSON Data 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: 1401119895 news.xs4all.nl 2924 [2001:888:2000:d::a6]:34695 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:72074 On Tue, May 27, 2014 at 1:37 AM, Gene Heskett wrote: > Just for S&G, and without checking the version numbers of anything, this > may not be all that bulletproof a test: > > gene@coyote:~$ echo '[1, 2, 3]' | json_xs -t null 2>/dev/null; echo $? > 127 > gene@coyote:~$ echo '[1; 2, 3]' | json_xs -t null 2>/dev/null; echo $? > 127 > > Old, buntu 10.04.4 LTS system, all up to date security patches wise. > kernal 3.13.9, PAE on a quad core phenom. > > Interesting result. Source of error? DamnedifIknow. > Return value 127 might well mean that json_xs isn't installed. It's very difficult for a non-program to tell you whether JSON is valid or not :) So I'd be checking 'which json_xs' before continuing. ChrisA