Stylistic question about inheritance
steven.bethard at gmail.com
Thu Mar 31 23:20:42 CEST 2005
Andrew Koenig wrote:
> "Carl Banks" <invalidemail at aerojockey.com> wrote in message
> news:1112300127.449931.146470 at o13g2000cwo.googlegroups.com...
>>Well, Python seems to get along fine without the ability to do
>>isinstance(foo,file_like_object); probably better off in the end for
>>it. So I'd say you should generally not do it. Inheritence is for
>>when different classes need to share functionality.
> That's really the question: Is it for when they need to share
> functionality, or when they are conceptually related in ways that might lead
> to shared functionality later?
I've typically only done the former. But I've definitely extracted
common ancestors later when I did find that two different classes should
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