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Re: newb __init__ inheritance

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Newsgroups comp.lang.python
Date Sun, 11 Mar 2012 03:56:28 -0700 (PDT)
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On Sunday, March 11, 2012 12:38:27 PM UTC+2, Chris Rebert wrote:
> On Sun, Mar 11, 2012 at 3:18 AM, hyperboogie wrote:
> <snip>
> > thank you everyone...
> > Still things are not working as expected... what am I doing wrong?
> <snip>
> > # cat test.py
> > #!/usr/bin/python
> >
> > class A():
> 
> You should be subclassing `object`, but that's a minor point which
> isn't the cause of your problem.
> 
> >   def __init__(self):
> >      z=1
> 
> This creates a *local variable* named "z". You want an *attribute*
> named "z", so you should be doing:
>     self.z = 1
> instead. Same problem elsewhere; you must *always* explicitly use
> `self` when referencing an attribute of the current object. Python !=
> Java or C++.
> 
> Cheers,
> Chris

Thanks ... works great now. 
Two last questions:

1. What do you mean by "subclassing `object`"?
2. Is the mro function available only on python3?

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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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