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Re: newb __init__ inheritance

References (2 earlier) <jjglmi$dao$1@theodyn.ncf.ca> <2feb13ca-f83b-4843-995f-ee77e7505ecd@db5g2000vbb.googlegroups.com> <mailman.560.1331462311.3037.python-list@python.org> <18769501.3541.1331463388634.JavaMail.geo-discussion-forums@ynkz21> <CALwzidnxW5g9kSq+RBtOX5u_EHcevGbX3wqZJcHDc5KFSUwOCA@mail.gmail.com>
From Ian Kelly <ian.g.kelly@gmail.com>
Date 2012-03-11 05:52 -0600
Subject Re: newb __init__ inheritance
Newsgroups comp.lang.python
Message-ID <mailman.564.1331466800.3037.python-list@python.org> (permalink)

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On Sun, Mar 11, 2012 at 5:40 AM, Ian Kelly <ian.g.kelly@gmail.com> wrote:
>> 2. Is the mro function available only on python3?
>
> No, but it is available only on new-style classes.  If you try it on a
> classic class, you'll get an AttributeError.

And by the way, you probably shouldn't call the mro method directly.
That method is provided so that it can be overridden in order to
customize the MRO at class creation.  The proper (and faster) way to
look up the MRO for a class is using the __mro__ attribute, which
stores the result of the mro method when the class is initialized.

http://docs.python.org/library/stdtypes.html?highlight=mro#class.__mro__

Cheers,
Ian

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Thread

newb __init__ inheritance hyperboogie <hyperboogie@gmail.com> - 2012-03-08 07:25 -0800
  Re: newb __init__ inheritance Maarten <maarten.sneep@knmi.nl> - 2012-03-08 08:30 -0800
    Re: newb __init__ inheritance Peter Otten <__peter__@web.de> - 2012-03-08 18:03 +0100
  Re: newb __init__ inheritance Ethan Furman <ethan@stoneleaf.us> - 2012-03-08 09:34 -0800
  Re: newb __init__ inheritance "Colin J. Williams" <cjw@ncf.ca> - 2012-03-10 12:58 -0500
    Re: newb __init__ inheritance "Colin J. Williams" <cjw@ncf.ca> - 2012-03-10 17:47 -0500
      Re: newb __init__ inheritance hyperboogie <hyperboogie@gmail.com> - 2012-03-11 03:18 -0700
        Re: newb __init__ inheritance Chris Rebert <clp2@rebertia.com> - 2012-03-11 03:38 -0700
          Re: newb __init__ inheritance hyperboogie <hyperboogie@gmail.com> - 2012-03-11 03:56 -0700
            Re: newb __init__ inheritance Chris Rebert <clp2@rebertia.com> - 2012-03-11 04:37 -0700
            Re: newb __init__ inheritance Ian Kelly <ian.g.kelly@gmail.com> - 2012-03-11 05:40 -0600
            Re: newb __init__ inheritance Ian Kelly <ian.g.kelly@gmail.com> - 2012-03-11 05:52 -0600
            Re: newb __init__ inheritance Peter Otten <__peter__@web.de> - 2012-03-11 13:12 +0100
          Re: newb __init__ inheritance hyperboogie <hyperboogie@gmail.com> - 2012-03-11 03:56 -0700
  Re: newb __init__ inheritance hyperboogie <hyperboogie@gmail.com> - 2012-03-12 02:09 -0700

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