Path: csiph.com!usenet.pasdenom.info!weretis.net!feeder4.news.weretis.net!feeder2.ecngs.de!ecngs!feeder.ecngs.de!border1.nntp.ams1.giganews.com!nntp.giganews.com!newsfeed.xs4all.nl!newsfeed8.news.xs4all.nl!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 0.004 X-Spam-Evidence: '*H*': 0.99; '*S*': 0.00; 'subject:Python': 0.05; 'bash': 0.07; 'correct.': 0.07; 'rewrite': 0.07; 'variable,': 0.07; 'cc:addr:python-list': 0.09; 'subject:How': 0.09; 'spec': 0.09; 'subject:script': 0.09; 'worse': 0.09; 'python': 0.10; 'python.': 0.11; 'decent': 0.16; 'from:addr:rosuav': 0.16; 'from:name:chris angelico': 0.16; 'simpson': 0.16; 'wrote:': 0.16; '2015': 0.20; 'cc:2**0': 0.20; 'cc:addr:python.org': 0.20; '31,': 0.22; 'assuming': 0.22; 'header:In-Reply-To:1': 0.24; 'command': 0.26; 'fri,': 0.27; 'message-id:@mail.gmail.com': 0.27; 'converting': 0.27; 'environment': 0.29; 'convert': 0.29; 'guess': 0.31; 'probably': 0.31; 'received:google.com': 0.35; 'but': 0.36; 'subject:?': 0.36; 'pm,': 0.36; 'subject:: ': 0.37; 'two': 0.37; 'support,': 0.37; 'subject:-': 0.39; 'rather': 0.39; 'still': 0.40; 'your': 0.60; 'between': 0.65; 'believe': 0.66; 'cameron': 0.66; 'jul': 0.72; 'actually,': 0.84; 'chrisa': 0.84; 'lacks': 0.84; 'subject:write': 0.84; 'subject:this': 0.85; 'to:none': 0.91; 'simulation': 0.91 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=/YpHfJdyXqZ0olhvdaLshQoRniQG1FoXj3CX30xDPr0=; b=lhJHI7rZ86bW74Czce/bEI6AIwLV8qorR3UsrAz8BczcbdqNuMSU7c0/BXDOGGJKoG mIKQbcO+h0csSPEkCei0EbawicUFRhGOFEe8+T/yJn4vltuCC9VSuTx+rtgWD2ql6GcH jebmx5pNh5fConJ7VV4V83XkvDbQLKiGt7lAIxQvAHUIvxrjF69pFSIYPQBcGA79ibnK Es7m3bZS80ZpLXbeqKzbmOeH3p0mM3DrCnC2STxebfNIBm2dxnp3+TmMJQkt40/0EmUC NZdlwaOTh34/iiMYA+bejs31ORZzYjvIlMcevUrbeX96q+55w7UoBSKndLK1g6KVRXcn OSzg== MIME-Version: 1.0 X-Received: by 10.107.163.16 with SMTP id m16mr2621975ioe.31.1438331198130; Fri, 31 Jul 2015 01:26:38 -0700 (PDT) In-Reply-To: <20150731081503.GA12474@cskk.homeip.net> References: <20150731081503.GA12474@cskk.homeip.net> Date: Fri, 31 Jul 2015 18:26:38 +1000 Subject: Re: How to re-write this bash script in Python? From: Chris Angelico Cc: "python-list@python.org" Content-Type: text/plain; charset=UTF-8 X-BeenThere: python-list@python.org X-Mailman-Version: 2.1.20+ 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: 19 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1438331201 news.xs4all.nl 2846 [2001:888:2000:d::a6]:36120 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:94806 On Fri, Jul 31, 2015 at 6:15 PM, Cameron Simpson wrote: >> For example, bash lacks >> decent timezone support, so I can well believe random832's guess that >> your five-hour offset is a simulation of that; but Python can do much >> better work with timezones, so you can get that actually correct. > > > Actually, bash has no timezone support but the date command _does_, and > probably neither better nor worse than Python. All one has to do is set the > TZ environment variable, eg (untested): > > _year_gmt=$( TZ=GMT date +%Y ) That's assuming that it's converting against the current system timezone. I don't know how you'd use `date` to convert between two arbitrary timezones. But anyway, still justification to rewrite from original spec rather than reimplementing the five-hour hack. ChrisA