[Edu-sig] Refocusing on Capabilities (was PySqueak)
kirby.urner at gmail.com
Fri May 26 23:54:29 CEST 2006
On 5/26/06, Ian Bicking <ianb at colorstudy.com> wrote:
> I think there's two issues: classes and inheritance. I don't think
> inheritance is a particularly respected structure in Python.
> Inheritance is a sometimes useful implementation technique. I think
> it's wrong to think of it as more than that. Probably we need better
> support for some other competing techniques.
Composition is a commonly used competing technique. Then of course
we're free to just write functions, outside of any class.
In my thumbnail of language history, I talk about
(1) wild west spaghetti code
(2) structured programming
(4) design patterns.
It's very possible to write ultra-confusing OO code, so in some sense
1 is to 2 as 3 is to 4 (structured programming reformed the
spaghettifiers, while emphasis on DP corals and controls the
I'm sort of leaving out the evolution of functional programming in the above.
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