Path: csiph.com!x330-a1.tempe.blueboxinc.net!newsfeed.hal-mli.net!feeder1.hal-mli.net!nx01.iad01.newshosting.com!newshosting.com!news-out.octanews.net!mauve.octanews.net!news.astraweb.com!border5.newsrouter.astraweb.com!not-for-mail
From: Ben Finney <ben+python@benfinney.id.au>
Newsgroups: comp.lang.python
Subject: Alias for an attribute defined in a superclass
X-Public-Key-ID: 0xAC128405
X-Public-Key-Fingerprint: 517C F14B B2F3 98B0 CB35  4855 B8B2 4C06 AC12 8405
X-Public-Key-URL: http://www.benfinney.id.au/contact/bfinney-pubkey.asc
X-Post-From: Ben Finney <bignose+hates-spam@benfinney.id.au>
Date: Fri, 01 Apr 2011 09:14:03 +1100
Message-ID: <87sju3ndjo.fsf@benfinney.id.au>
User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.2 (gnu/linux)
Cancel-Lock: sha1:NxthFzm71YF5j0shjPlUlNHkeM4=
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 8bit
Lines: 26
Organization: Unlimited download news at news.astraweb.com
NNTP-Posting-Host: 19cc3ab0.news.astraweb.com
X-Trace: DXC=g2JNi6XY336JQj]j1AWO\;L?0kYOcDh@:W\:Hm@YlDb:?ca>[jolac=UGD@iN[Hd??CNnn^goOO^8
Xref: x330-a1.tempe.blueboxinc.net comp.lang.python:2307

Howdy all,

I want to inherit from a class, and define aliases for many of its
attributes. How can I refer to “the attribute that will be available by
name ‘spam’ once this class is defined”?

    class Foo(object):
        def spam(self):
            pass

        def eggs(self):
            pass

    class Bar(Foo):
        beans = Foo.spam
        mash = Foo.eggs

Is that the right way to do it? Will that leave me open to “unbound
method” or “is not an instance of ‘Bar’” or other problems when using
‘Bar.beans’?

-- 
 \           “If [a technology company] has confidence in their future |
  `\      ability to innovate, the importance they place on protecting |
_o__)     their past innovations really should decline.” —Gary Barnett |
Ben Finney