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Re: data attributes override method attributes?

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On 9/25/2012 10:54 AM, Peter Otten wrote:
> alex23 wrote:
>
>> On Sep 26, 12:08 am, Peter Otten <__pete...@web.de> wrote:
>>> Jayden wrote:
>>>> In the Python Tutorial, Section 9.4, it is said that
>>>
>>>> "Data attributes override method attributes with the same name."
>>>
>>> The tutorial is wrong here. That should be
>>>
>>> "Instance attributes override class attributes with the same name."

Except for special methods.

> I would even consider replacing the whole paragraph

I agree
>
> """
> Data attributes override method attributes with the same name; to avoid
> accidental name conflicts, which may cause hard-to-find bugs in large
> programs, it is wise to use some kind of convention that minimizes the
> chance of conflicts. Possible conventions include capitalizing method names,
> prefixing data attribute names with a small unique string (perhaps just an
> underscore), or using verbs for methods and nouns for data attributes.
> """
> http://docs.python.org/dev/py3k/tutorial/classes.html
>
> with something like
>
> "Data attributes and method attributes share the same namespace.

and instance attributes usually override class attributes

 > To avoid
> name conflicts consider using verbs for methods and nouns for data
> attributes"

This applies within and between. I opened

http://bugs.python.org/issue16048

-- 
Terry Jan Reedy

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Thread

data attributes override method attributes? Jayden <jayden.shui@gmail.com> - 2012-09-25 06:41 -0700
  Re: data attributes override method attributes? alex23 <wuwei23@gmail.com> - 2012-09-25 06:52 -0700
  Re: data attributes override method attributes? Peter Otten <__peter__@web.de> - 2012-09-25 16:08 +0200
    Re: data attributes override method attributes? alex23 <wuwei23@gmail.com> - 2012-09-25 07:11 -0700
      Re: data attributes override method attributes? Peter Otten <__peter__@web.de> - 2012-09-25 16:54 +0200
      Re: data attributes override method attributes? Chris Angelico <rosuav@gmail.com> - 2012-09-26 01:03 +1000
      Re: data attributes override method attributes? Ulrich Eckhardt <ulrich.eckhardt@dominolaser.com> - 2012-09-25 16:54 +0200
      Re: data attributes override method attributes? Terry Reedy <tjreedy@udel.edu> - 2012-09-25 15:58 -0400
      Re: data attributes override method attributes? Ian Kelly <ian.g.kelly@gmail.com> - 2012-09-25 14:07 -0600
      Re: data attributes override method attributes? Terry Reedy <tjreedy@udel.edu> - 2012-09-25 16:18 -0400
      Re: data attributes override method attributes? Terry Reedy <tjreedy@udel.edu> - 2012-09-25 16:34 -0400
      RE: data attributes override method attributes? "Prasad, Ramit" <ramit.prasad@jpmorgan.com> - 2012-09-28 18:02 +0000
        Re: data attributes override method attributes? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2012-09-29 03:20 +0000
      Re: data attributes override method attributes? Ian Kelly <ian.g.kelly@gmail.com> - 2012-09-28 12:25 -0600
      Re: data attributes override method attributes? Terry Reedy <tjreedy@udel.edu> - 2012-09-28 14:26 -0400
    Re: data attributes override method attributes? Thomas Rachel <nutznetz-0c1b6768-bfa9-48d5-a470-7603bd3aa915@spamschutz.glglgl.de> - 2012-09-25 21:52 +0200
  Re: data attributes override method attributes? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2012-09-25 14:12 +0000

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