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To: python-list@python.org
From: Terry Reedy <tjreedy@udel.edu>
Subject: Re: data attributes override method attributes?
Date: Tue, 25 Sep 2012 16:18:26 -0400
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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