Path: csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!feeder.erje.net!eu.feeder.erje.net!newsreader4.netcologne.de!news.netcologne.de!xlned.com!feeder1.xlned.com!newsfeed.xs4all.nl!newsfeed4.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 0.006 X-Spam-Evidence: '*H*': 0.99; '*S*': 0.00; 'diff': 0.07; 'method,': 0.09; 'to:addr:pobox.com': 0.09; 'to:addr:skip': 0.09; 'cc:addr :python-list': 0.11; 'cleaner': 0.16; 'cleanly': 0.16; 'sender:addr:gmail.com': 0.17; 'wrote:': 0.18; 'seems': 0.21; 'cc:addr:python.org': 0.22; 'this?': 0.23; 'delta': 0.24; 'replace': 0.24; 'skip': 0.24; '(or': 0.24; 'cc:2**0': 0.24; 'least': 0.26; 'header:In-Reply-To:1': 0.27; 'field,': 0.30; 'message-id:@mail.gmail.com': 0.30; 'guess': 0.33; 'maybe': 0.34; 'skip:d 20': 0.34; 'objects': 0.35; 'but': 0.35; 'received:google.com': 0.35; 'there': 0.35; 'subject:?': 0.36; 'two': 0.37; 'more': 0.64; '2013': 0.98 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:from:date:message-id :subject:to:cc:content-type; bh=S5uSbWpJWv9/sHfTl1fMRy7NOj4x/gOPHtjnBTjG9Ys=; b=xMPElEli/0hPgC7NAzbv4UjH56306FiYahX7W4zYmGurxZWnanQEmczPF2juOgb6uI k7dPDdwfqTO+STd9YkKqGOvLy26rarzO29OSrp/vGagx6yCl1gILiScFwDZxhFMkspeb ZDq0nS4flE4hZ4No6nLBpiTLLIIQ9EzjCBy1OuybR9zgbaToCcZ09vun+T1CBQoU0btK R/BrS6a8oqCc2qme1RSPV6tf/E/2JQ+7KBEHsmjVwDHwGPyDmVGIiSLbBPqfvoAcqCOA FFxH5hSv/+8WJ/k2Ps0EX+A0kzRMAcB/iZjtT/5cn/+W7hpqYuUAX/XEMoWd1RK8BDZh VL6w== X-Received: by 10.112.57.49 with SMTP id f17mr17816202lbq.26.1381514219056; Fri, 11 Oct 2013 10:56:59 -0700 (PDT) MIME-Version: 1.0 Sender: joshua.landau.ws@gmail.com In-Reply-To: References: From: Joshua Landau Date: Fri, 11 Oct 2013 18:56:18 +0100 X-Google-Sender-Auth: RpUeM1na76XcD4W1mE9VYyDEn-8 Subject: Re: datetime.timedelta.replace? To: Skip Montanaro Content-Type: text/plain; charset=UTF-8 Cc: Python 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: 1381514226 news.xs4all.nl 15864 [2001:888:2000:d::a6]:37523 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:56697 On 9 October 2013 16:15, Skip Montanaro wrote: > Datetime objects have a replace method, but timedelta objects don't. > If I take the diff of two datetimes and want to zero out the > microseconds field, is there some way to do it more cleanly than this? > > delta = dt1 - dt2 > zero_delta = datetime.timedelta(days=delta.days, seconds=delta.seconds) > > I guess that's not bad, but replace() seems cleaner (or at least more > congruent with datetime objects). Maybe one of delta - datetime.timedelta(0, 0, delta.microseconds) or delta - delta % datetime.timedelta(seconds=1) is clearer.