[Python-Dev] Re: Method resolution order
Guido van Rossum
Wed, 11 Jul 2001 19:21:49 -0400
> Guido van Rossum wrote:
> > Using the classic [depth-first, left-right] lookup rule, construct the
> > list of classes that would be searched, including duplicates. Now for
> > each class that occurs in the list multiple times, remove all
> > occurrences except for the last. The resulting list contains each
> > ancestor class exactly once
> Is this original or is it used by other languages as well? My books on
> Dylan and CLOS are at home but I think they do something similar.
I didn't make it up! I got it from the reference  in the PEP. C+
seems to do something similar (with added conflict checking).
It would be good to mention that this is not a new invention. If you
can confirm that Dylan and CLOS have this, I'll add that.
--Guido van Rossum (home page: http://www.python.org/~guido/)