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Re: AttributeError in "with" statement (3.2.2)

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On 15/12/2011 05:01, Steven D'Aprano wrote:
> On Wed, 14 Dec 2011 18:13:36 -0500, Terry Reedy wrote:
>
>>  On 12/14/2011 3:01 AM, Steven D'Aprano wrote:
>>>  On Wed, 14 Dec 2011 01:29:13 -0500, Terry Reedy wrote:
>>>
>>>>  To complement what Eric says below: The with statement is looking for
>>>>  an instance *method*, which by definition, is a function attribute of
>>>>  a *class* (the class of the context manager) that takes an instance of
>>>>  the class as its first parameter.
>>>
>>>  I'm not sure that is correct... I don't think that there is anything
>>>  "by definition" about where methods live.
>>
>>    From the Python glossary:
>>  "method: A function which is defined inside a class body."
>>
>>  That is actually a bit too narrow, as a function can be added to the
>>  class after it is defined. But the point then is that it is treated as
>>  if defined inside the class body.
>
> First off, let me preface this by saying that I'm not necessarily saying
> that the above glossary definition needs to be changed. For most
> purposes, it is fine, since *nearly always* methods are created as
> functions defined inside the class body. But it needs to be understood in
> context as a simplified, hand-wavy definition which covers 99% of the
> common cases, and not a precise, definitive technical definition.
>
> To give an analogy, it is like defining mammals as "hairy animals which
> give birth to live young", which is correct for all mammals except for
> monotremes, which are mammals which lay eggs.
>
[snip]
Or the naked mole-rat. Or cetaceans (whales).

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AttributeError in "with" statement (3.2.2) Steve Howell <showell30@yahoo.com> - 2011-12-13 21:42 -0800
  Re: AttributeError in "with" statement (3.2.2) Eric Snow <ericsnowcurrently@gmail.com> - 2011-12-13 23:05 -0700
  Re: AttributeError in "with" statement (3.2.2) Terry Reedy <tjreedy@udel.edu> - 2011-12-14 01:29 -0500
    Re: AttributeError in "with" statement (3.2.2) Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-12-14 08:01 +0000
      Re: AttributeError in "with" statement (3.2.2) 88888 Dihedral <dihedral88888@googlemail.com> - 2011-12-14 08:08 -0800
        Re: AttributeError in "with" statement (3.2.2) 88888 Dihedral <dihedral88888@googlemail.com> - 2011-12-14 08:28 -0800
      Re: AttributeError in "with" statement (3.2.2) Steve Howell <showell30@yahoo.com> - 2011-12-14 09:16 -0800
      Re: AttributeError in "with" statement (3.2.2) Terry Reedy <tjreedy@udel.edu> - 2011-12-14 18:13 -0500
        Re: AttributeError in "with" statement (3.2.2) Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-12-15 05:01 +0000
          Re: AttributeError in "with" statement (3.2.2) MRAB <python@mrabarnett.plus.com> - 2011-12-15 05:15 +0000
            Re: AttributeError in "with" statement (3.2.2) Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-12-15 07:21 +0000
            Re: AttributeError in "with" statement (3.2.2) Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2011-12-16 09:34 +1300
          Re: AttributeError in "with" statement (3.2.2) Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-12-15 07:47 +0000
          Re: AttributeError in "with" statement (3.2.2) Steve Howell <showell30@yahoo.com> - 2011-12-15 05:35 -0800
            Re: AttributeError in "with" statement (3.2.2) Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-12-16 03:34 +0000
          Re: AttributeError in "with" statement (3.2.2) Terry Reedy <tjreedy@udel.edu> - 2011-12-15 19:39 -0500
            Re: AttributeError in "with" statement (3.2.2) Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-12-16 09:22 +0000
              Re: AttributeError in "with" statement (3.2.2) Terry Reedy <tjreedy@udel.edu> - 2011-12-16 17:05 -0500
                Re: AttributeError in "with" statement (3.2.2) Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-12-17 01:26 +0000
                Re: AttributeError in "with" statement (3.2.2) Terry Reedy <tjreedy@udel.edu> - 2011-12-17 21:09 -0500
              Re: AttributeError in "with" statement (3.2.2) Ethan Furman <ethan@stoneleaf.us> - 2011-12-16 15:26 -0800
                Re: AttributeError in "with" statement (3.2.2) Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-12-17 03:05 +0000
              Re: AttributeError in "with" statement (3.2.2) Ethan Furman <ethan@stoneleaf.us> - 2011-12-16 16:34 -0800
  Re: AttributeError in "with" statement (3.2.2) Peter Otten <__peter__@web.de> - 2011-12-14 11:02 +0100
  Re: AttributeError in "with" statement (3.2.2) Eric Snow <ericsnowcurrently@gmail.com> - 2011-12-14 09:56 -0700
  Re: AttributeError in "with" statement (3.2.2) Lie Ryan <lie.1296@gmail.com> - 2011-12-15 06:14 +1100
  Re: AttributeError in "with" statement (3.2.2) Eric Snow <ericsnowcurrently@gmail.com> - 2011-12-14 12:46 -0700

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