Re: how to convert code that uses cmp to python3

From	Marko Rauhamaa <marko@pacujo.net>
Newsgroups	comp.lang.python
Subject	Re: how to convert code that uses cmp to python3
Date	2016-04-09 19:32 +0300
Organization	A noiseless patient Spider
Message-ID	<87y48meo93.fsf@elektro.pacujo.net> (permalink)
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Antoon Pardon <antoon.pardon@rece.vub.ac.be>:

> And when I need some personal object as a key, I can avoid the
> duplication by using some kind of cmp cache when I implement __lt__
> and family.

Yes, that's what you can do in rare, extreme cases where key comparison
takes a long time. For caching, you will simply need to require that
keys stay immutable wrt comparing.


Marko

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Re: how to convert code that uses cmp to python3 Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2016-04-09 18:03 +0200
  Re: how to convert code that uses cmp to python3 Marko Rauhamaa <marko@pacujo.net> - 2016-04-09 19:32 +0300

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