Guido rethinking removal of cmp from sort method

Chris Angelico rosuav at
Fri Apr 1 08:30:08 CEST 2011

On Fri, Apr 1, 2011 at 5:13 PM, harrismh777 <harrismh777 at> wrote:
>    Corollary 1)a The Class interface never encapsulates cruft.

Provably false. Even a well-designed interface, if it is asked to deal
with a changing implementation and changing requirements, will
eventually either acquire cruft, or be found too rigid to be of use.
The only interface immune to this is the transparent interface
(effectively: "just package up the parameters in a single string and
pass it through"), which isn't really an interface at all, it just
exposes something else. In everything else, cruft is a reality that
must be dealt with.

Chris Angelico

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