lambda vs. operator.attrGetter('xxx') as sort key in Python
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by Paul McGuire
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Published on 2010-04-24T15:56:37Z
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2010/04/24
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I am looking at some code that has a lot of sort calls using comparison functions, and it seems like it should be using key functions.
If you were to change seq.sort(lambda x,y: cmp(x.xxx, y.xxx)), which is preferable:
seq.sort(key=operator.attrgetter('xxx'))
or:
seq.sort(key=lambda a:a.xxx)
I would also be interested in comments on the merits of making changes to existing code that works.
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