Path: csiph.com!usenet.pasdenom.info!gegeweb.org!de-l.enfer-du-nord.net!feeder2.enfer-du-nord.net!feeds.phibee-telecom.net!newsfeed.xs4all.nl!newsfeed1.news.xs4all.nl!xs4all!post.news.xs4all.nl!not-for-mail
Return-Path: <ethan@stoneleaf.us>
X-Original-To: python-list@python.org
Delivered-To: python-list@mail.python.org
X-Spam-Status: OK 0.012
X-Spam-Evidence: '*H*': 0.98; '*S*': 0.00; 'attribute': 0.07; 'from:addr:ethan': 0.09; 'from:addr:stoneleaf.us': 0.09; 'from:name:ethan furman': 0.09; 'message-id:@stoneleaf.us': 0.09; 'received:184.172': 0.09; 'received:gator410.hostgator.com': 0.09; '~ethan~': 0.09; 'def': 0.12; 'wrote:': 0.18; 'code.': 0.18; 'variable': 0.18; 'work,': 0.20; 'example': 0.22; 'header:User- Agent:1': 0.23; 'looks': 0.24; 'this:': 0.26; 'skip:" 20': 0.27; 'header:In-Reply-To:1': 0.27; 'point': 0.28; 'am,': 0.29; "doesn't": 0.30; 'class': 0.32; 'noticed': 0.34; 'could': 0.34; 'connection': 0.35; 'consistent': 0.36; 'object,': 0.36; 'charset :us-ascii': 0.36; 'to:addr:python-list': 0.38; 'to:addr:python.org': 0.39; 'skip:u 10': 0.60; 'ian': 0.60; 'received:173': 0.61; 'places': 0.64; 'jul': 0.74; 'ethan': 0.84; 'furman': 0.84; '2013': 0.98
Date: Tue, 09 Jul 2013 10:23:58 -0700
From: Ethan Furman <ethan@stoneleaf.us>
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:16.0) Gecko/20121010 Thunderbird/16.0.1
MIME-Version: 1.0
To: python-list@python.org
Subject: Re: Default scope of variables
References: <51d4eb9c$0$29999$c3e8da3$5496439d@news.astraweb.com> <mailman.4200.1372910878.3114.python-list@python.org> <51d508ed$0$6512$c3e8da3$5496439d@news.astraweb.com> <mailman.4208.1372916885.3114.python-list@python.org> <51d5a504$0$29999$c3e8da3$5496439d@news.astraweb.com> <CAPTjJmpgmABYwn0xB4T-9VbYMP=8JfpRcy8TPSerzyGvzPbMmA@mail.gmail.com> <alpine.DEB.2.02.1307070759350.18702@gilgamesh> <mailman.4357.1373204606.3114.python-list@python.org> <krg4k4$tea$1@dont-email.me> <mailman.4423.1373346452.3114.python-list@python.org> <krg91s$e6j$1@dont-email.me> <CAPTjJmqkmFd4-Jpugr-vubuB6riBV6K_Mwnxc_U3CVaBr_Wgbg@mail.gmail.com> <krgefq$gji$1@ger.gmane.org> <CALwzid=FzgjPebifx1stDBkh8iwLtWggwwPTPhZ1ykYg+05wEg@mail.gmail.com> <krgi5f$n2v$1@ger.gmane.org> <51DC355E.20606@stoneleaf.us> <CALwzidnf3Obe0eNf3xTHLj5a40K8HxVThVEipECQ8+34ZxyLxw@mail.gmail.com>
In-Reply-To: <CALwzidnf3Obe0eNf3xTHLj5a40K8HxVThVEipECQ8+34ZxyLxw@mail.gmail.com>
Content-Type: text/plain; charset=us-ascii; format=flowed
Content-Transfer-Encoding: 7bit
X-AntiAbuse: This header was added to track abuse, please include it with any abuse report
X-AntiAbuse: Primary Hostname - gator410.hostgator.com
X-AntiAbuse: Original Domain - python.org
X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12]
X-AntiAbuse: Sender Address Domain - stoneleaf.us
X-BWhitelist: no
X-Source: 
X-Source-Args: 
X-Source-Dir: 
X-Source-Sender: ([173.12.184.233]) [173.12.184.233]:57432
X-Source-Auth: ethan+stoneleaf.us
X-Email-Count: 2
X-Source-Cap: dG9idWs7dG9idWs7Z2F0b3I0MTAuaG9zdGdhdG9yLmNvbQ==
X-BeenThere: python-list@python.org
X-Mailman-Version: 2.1.15
Precedence: list
List-Id: General discussion list for the Python programming language <python-list.python.org>
List-Unsubscribe: <http://mail.python.org/mailman/options/python-list>, <mailto:python-list-request@python.org?subject=unsubscribe>
List-Archive: <http://mail.python.org/pipermail/python-list/>
List-Post: <mailto:python-list@python.org>
List-Help: <mailto:python-list-request@python.org?subject=help>
List-Subscribe: <http://mail.python.org/mailman/listinfo/python-list>, <mailto:python-list-request@python.org?subject=subscribe>
Newsgroups: comp.lang.python
Message-ID: <mailman.4466.1373392017.3114.python-list@python.org>
Lines: 19
NNTP-Posting-Host: 2001:888:2000:d::a6
X-Trace: 1373392017 news.xs4all.nl 15906 [2001:888:2000:d::a6]:41867
X-Complaints-To: abuse@xs4all.nl
Xref: csiph.com comp.lang.python:50267

On 07/09/2013 09:44 AM, Ian Kelly wrote:
> On Tue, Jul 9, 2013 at 10:07 AM, Ethan Furman <ethan@stoneleaf.us> wrote:
>> You could also do it like this:
>>
>>      def updating(self):
>>          self.transaction_active = True
>>          return self
>
> Yes, that would be simpler.  I was all set to point out why this
> doesn't work, and then I noticed that the location of the
> "transaction_active" attribute is not consistent in the original code.
>   The DbSession class places it on self, and then the example usage
> places it on the connection object

It looks like DbSession has a conn object, and in the example he has DbSession() named as conn -- ironic, considering 
this is a variable scoping thread.  ;)

--
~Ethan~