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Groups > comp.lang.python > #17083
| Date | 2011-12-12 16:43 -0500 |
|---|---|
| From | Dave Angel <d@davea.name> |
| Subject | Re: Overriding a global |
| References | <roy-B236C9.15475310122011@news.panix.com> <mailman.3500.1323551240.27778.python-list@python.org> <roy-EC9997.16105310122011@news.panix.com> <mailman.3542.1323688423.27778.python-list@python.org> <4ee671f6$0$29979$c3e8da3$5496439d@news.astraweb.com> |
| Newsgroups | comp.lang.python |
| Message-ID | <mailman.3569.1323726243.27778.python-list@python.org> (permalink) |
On 12/12/2011 04:28 PM, Steven D'Aprano wrote:
> On Mon, 12 Dec 2011 12:13:33 +0100, Jean-Michel Pichavant wrote:
>
>> Using the same name for 2 different objects is a bad idea in general.
> We have namespaces precisely so you don't need to care about making names
> globally unique.
>
>
True, but in this code, the function is trying to both use the global
value, but also a local that deliberately has the same name, but a
different meaning and "value". The CPython compiler doesn't make this
easy, and I think the globals() technique is unnecessarily obscure, as
is the default-argument trick.
If a function knows of the presence of a global, it's not asking too
much for it to not re-use the same name in local scope.
Since it seems to be in vogue to propose language changes, how about a
new place for 'as' ?
def myfunc():
global logger as g_logger
logger = g_logger.debug('stuff').getChild('function')
--
DaveA
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Overriding a global Roy Smith <roy@panix.com> - 2011-12-10 15:47 -0500
Re: Overriding a global MRAB <python@mrabarnett.plus.com> - 2011-12-10 21:07 +0000
Re: Overriding a global Roy Smith <roy@panix.com> - 2011-12-10 16:10 -0500
Re: Overriding a global Jean-Michel Pichavant <jeanmichel@sequans.com> - 2011-12-12 12:13 +0100
Re: Overriding a global Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-12-12 21:28 +0000
Re: Overriding a global Dave Angel <d@davea.name> - 2011-12-12 16:43 -0500
Re: Overriding a global Ben Finney <ben+python@benfinney.id.au> - 2011-12-13 09:27 +1100
Re: Overriding a global Dave Angel <d@davea.name> - 2011-12-12 20:46 -0500
Re: Overriding a global Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-12-13 01:48 +0000
Re: Overriding a global Ian Kelly <ian.g.kelly@gmail.com> - 2011-12-12 22:50 -0700
Re: Overriding a global Joshua Landau <joshua.landau.ws@gmail.com> - 2011-12-13 08:34 +0000
Re: Overriding a global Ian Kelly <ian.g.kelly@gmail.com> - 2011-12-13 12:34 -0700
Re: Overriding a global Ian Kelly <ian.g.kelly@gmail.com> - 2011-12-13 12:54 -0700
Re: Overriding a global Jean-Michel Pichavant <jeanmichel@sequans.com> - 2011-12-13 10:54 +0100
Re: Overriding a global Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-12-13 11:15 +0000
Re: Overriding a global Jean-Michel Pichavant <jeanmichel@sequans.com> - 2011-12-13 14:30 +0100
Re: Overriding a global Jean-Michel Pichavant <jeanmichel@sequans.com> - 2011-12-14 11:14 +0100
Re: Overriding a global Chris Angelico <rosuav@gmail.com> - 2011-12-14 21:32 +1100
Re: Overriding a global Jean-Michel Pichavant <jeanmichel@sequans.com> - 2011-12-14 13:05 +0100
Re: Overriding a global Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-12-14 12:53 +0000
Re: Overriding a global Jean-Michel Pichavant <jeanmichel@sequans.com> - 2011-12-14 14:35 +0100
Re: Overriding a global Chris Angelico <rosuav@gmail.com> - 2011-12-14 23:21 +1100
Re: Overriding a global Jean-Michel Pichavant <jeanmichel@sequans.com> - 2011-12-14 18:06 +0100
Re: Overriding a global Terry Reedy <tjreedy@udel.edu> - 2011-12-10 19:14 -0500
Re: Overriding a global Terry Reedy <tjreedy@udel.edu> - 2011-12-10 19:19 -0500
Re: Overriding a global Peter Otten <__peter__@web.de> - 2011-12-11 09:14 +0100
Re: Overriding a global Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2011-12-13 10:15 +0100
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