Path: csiph.com!x330-a1.tempe.blueboxinc.net!usenet.pasdenom.info!gegeweb.org!de-l.enfer-du-nord.net!feeder2.enfer-du-nord.net!txtfeed1.tudelft.nl!tudelft.nl!txtfeed2.tudelft.nl!amsnews11.chello.com!newsgate.cistron.nl!newsgate.news.xs4all.nl!post.news.xs4all.nl!not-for-mail
Return-Path: <python-python-list@m.gmane.org>
X-Original-To: python-list@python.org
Delivered-To: python-list@mail.python.org
X-Spam-Status: OK 0.000
X-Spam-Evidence: '*H*': 1.00; '*S*': 0.00; 'received:verizon.net': 0.07; 'terry': 0.07; 'python': 0.08; '(it': 0.09; 'received:80.91': 0.09; 'received:80.91.229': 0.09; 'received:80.91.229.12': 0.09; 'received:gmane.org': 0.09; 'received:list': 0.09; 'received:lo.gmane.org': 0.09; 'referenced': 0.09; 'def': 0.13; 'logger.': 0.16; 'reedy': 0.16; 'roy': 0.16; 'subject:Overriding': 0.16; 'subject:global': 0.16; 'wrote:': 0.18; 'jan': 0.19; 'this?': 0.19; 'header:In-Reply- To:1': 0.22; 'statement': 0.23; 'code': 0.25; 'variable': 0.28; 'pm,': 0.29; 'lines': 0.30; 'implement': 0.32; 'header:User- Agent:1': 0.33; 'header:X-Complaints-To:1': 0.33; 'to:addr:python- list': 0.34; 'skip:" 10': 0.37; 'received:org': 0.38; 'to:addr:python.org': 0.40; 'legal': 0.70
X-Injected-Via-Gmane: http://gmane.org/
To: python-list@python.org
From: Terry Reedy <tjreedy@udel.edu>
Subject: Re: Overriding a global
Date: Sat, 10 Dec 2011 19:14:16 -0500
References: <roy-B236C9.15475310122011@news.panix.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 7bit
X-Gmane-NNTP-Posting-Host: pool-74-109-121-73.phlapa.fios.verizon.net
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:8.0) Gecko/20111105 Thunderbird/8.0
In-Reply-To: <roy-B236C9.15475310122011@news.panix.com>
X-BeenThere: python-list@python.org
X-Mailman-Version: 2.1.12
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.3504.1323562487.27778.python-list@python.org>
Lines: 24
NNTP-Posting-Host: 2001:888:2000:d::a6
X-Trace: 1323562487 news.xs4all.nl 6879 [2001:888:2000:d::a6]:50061
X-Complaints-To: abuse@xs4all.nl
Xref: x330-a1.tempe.blueboxinc.net comp.lang.python:16973

On 12/10/2011 3:47 PM, Roy Smith wrote:
>
> What I really want to do is:
>
>     def function(self):

Add a global statement to rebind a global name:
        global logger

>        logger = logger.getChild('function')
>        logger.debug('stuff')
>        logger.debug('other stuff')
>
> which lets me not have to change any lines of code other than inserting
> the one to redefine logger.  Unfortunately, that's not legal Python (it
> leads to "UnboundLocalError: local variable 'logger' referenced before
> assignment").
>
> Any ideas on the best way to implement this?


-- 
Terry Jan Reedy