bthom at cs.hmc.edu
Wed Apr 25 17:30:49 EDT 2007
I've had a look at http://wiki.python.org/moin/HowTo/Sorting, but am
not sure if I can get the operator.itemgetter to do what I want for
my particular need. I'm also not sure why creating my own cmp for
pulling tuple parts out and passing it to a list sort doesn't just work.
I'm sure this stuff is old hat to many on this list. Suggestions
Suppose I've got a list like:
l = [(-.3,(4,3)),(.2,(5,1)),(.10,(3,2))]
and I want to sort on the 2nd item in the 2nd tuple.
I've tried things like:
cmp = lambda x,y : x > y
but l isn't then changed in place.
behaves as I'd expect, but I really want something like
operator.itemgetter(1).itemgetter(1), which (understandably) causes a
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