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Tue Feb 14 12:53:04 CET 2006 · https://mail.python.org/pipermail/python-dev/2006-February/060901.html

Guido van Rossum wrote:
> In general I've come to appreciate that there are two ways of
> converting an object of type A to an object of type B: ask an A
> instance to convert itself to a B, or ask the type B to create a new
> instance from an A.

And the difference between the two isn't even always that clear cut. Sometimes 
you'll ask type B to create a new instance from an A, and then while you're 
not looking type B cheats and goes and asks the A instance to do it instead ;)

Cheers,
Nick.

-- 
Nick Coghlan   |   ncoghlan at gmail.com   |   Brisbane, Australia
---------------------------------------------------------------
             http://www.boredomandlaziness.org

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[Python-Dev] PEP 332 revival in coordination with pep 349? [ Was:Re: release plan for 2.5 ?]