Path: csiph.com!usenet.pasdenom.info!weretis.net!feeder1.news.weretis.net!feeder.erje.net!newsfeed.xs4all.nl!newsfeed5.news.xs4all.nl!xs4all!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 0.001 X-Spam-Evidence: '*H*': 1.00; '*S*': 0.00; 'much!': 0.05; 'arguments': 0.07; 'class,': 0.07; 'filenames': 0.07; 'subject:file': 0.07; 'subject:two': 0.07; 'used.': 0.07; 'splitting': 0.09; 'subject:Getting': 0.09; 'subject:same': 0.09; 'cc:addr:python- list': 0.10; 'subject:not': 0.11; 'received:192.168.11': 0.16; 'subclassing': 0.16; 'subject: \n ': 0.16; 'subject:dates': 0.16; 'wrote:': 0.17; 'fix': 0.17; '(or': 0.18; 'file.': 0.20; 'cc:2**0': 0.23; 'cc:addr:python.org': 0.25; 'header:In-Reply- To:1': 0.25; 'header:User-Agent:1': 0.26; 'am,': 0.27; 'guess': 0.27; 'lines': 0.28; 'noticed': 0.28; 'dates': 0.33; 'changed': 0.34; 'so,': 0.35; 'subject:?': 0.35; 'there': 0.35; 'but': 0.36; 'itself': 0.37; 'two': 0.37; 'why': 0.37; 'subject:: ': 0.38; 'files': 0.38; 'some': 0.38; 'received:192': 0.39; 'received:192.168': 0.40; 'end': 0.40; 'close': 0.63; 'information': 0.63; 'date,': 0.65; 'potentially': 0.66; 'header :Reply-To:1': 0.68; 'received:74.208': 0.71; 'reply-to:no real name:2**0': 0.72; 'received:74.208.4.194': 0.84 Date: Tue, 23 Oct 2012 19:46:57 -0400 From: Dave Angel User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:15.0) Gecko/20120912 Thunderbird/15.0.1 MIME-Version: 1.0 To: David M Chess Subject: Re: Getting a TimedRotatingFileHandler not to put two dates in the same file? References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Provags-ID: V02:K0:4hWX1ntmxDZRbzXR0C/4HaShALT5wLfbJc/Hn2tlj3f XB7R0bG8diI9vl4RXg+e9dmkNbrRcpZOhfyCGQxBfxr7SILW1G H6Ku9MCwaCp1Dv+gBtHRTJgSORh5dgoHjNkUZcGN8c2krkBDgH xHHW+khoOG/SgwjhMSXqtwOzZUhphcA9E2hdJWIcsJX1oXz/Mm p7OIA1DiQPrJYfkF1pfYAV20XfZ6R5Ap8O/Ua1HBjsTQIJCh5F R07uo/QSOBphLxSvKbyGOdc0e8KKzfeXI9cK47Cz/f0bHk2CE9 +SgLeVloVvKmQBXM5ZRgK6mowOin76MuADO37beNA/CZuWA2PU 1RZPybZInyJSf4hn+YvU= Cc: "python-list@python.org" X-BeenThere: python-list@python.org X-Mailman-Version: 2.1.15 Precedence: list Reply-To: d@davea.name 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: 34 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1351036027 news.xs4all.nl 6847 [2001:888:2000:d::a6]:37712 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:31975 On 10/23/2012 11:23 AM, David M Chess wrote: > We have a TimedRotatingFileHandler with when='midnight' You give us no clue what's in this class, or how it comes up with the filenames used. > . > > This works great, splitting the log information across files by date, as > long as the process is actually up at midnight. > > But now the users have noticed that if the process isn't up at midnight, > they can end up with lines from two (or I guess potentially more) dates in > the same log file. > > Is there some way to fix this, either with cleverer arguments into the > TimedRotatingFileHandler, or by some plausible subclassing of it or its > superclass? Why not use the date itself to derive the filename? And check whether the date has changed since the last update, and if so, close and reopen. Midnight is irrelevant. > Or am I misinterpreting the symptoms somehow? > > Tx much! > DC > > -- DaveA