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[Python-Dev] decorate-sort-undecorate

Moore, Paul Paul.Moore at atosorigin.com
Mon Oct 13 15:49:35 EDT 2003 
From: Raymond Hettinger [mailto:raymond.hettinger at verizon.net]

> For Py2.4, I propose adding an optional list.sort() argument to
> support the decorate-sort-undecorate pattern.
[...]
 
> def sort(self, cmpfunc=None, decorator=None):

I like it! But "decorator" isn't a good name - it describes how it's
being done, rather than what is being done. How about "key"? After
all, "key=str.lower" reads more or less as "the key is the lowercase
equivalent of the value", and "key=ages.__getitem__" reads "get the
key by getting the appropriate item from the ages dictionary".

But names apart, it's nice. It lets people use the builtin, without
going for the performance-reducing comparison function...

Paul.
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