Zack <[EMAIL PROTECTED]> wrote:
> There's nothing wrong (that I know of) by doing it as I have up there,
> but is there a simpler, easier way? Looking forward to hearing about
> how much of a n00b I am. Thanks in advance!
You want the defaultdict type:
import collections
d = collections.defaultdict(lambda: 0)
for person in People:
fav_food = person.fav_food
d[fav_food] += 1
New in Python 2.5, so if you require older Python versions, you
can't use that. Note also that this can become slow if most keys
are unique; the function given to defaultdict will be called the
first time a key is mentioned, and if the keys are mostly unique,
that will be the majority of the times, and calling a pure Python
function is fairly slow in CPython. (It probably won't matter
unless you have many thousands of unique keys, though.)
--
Thomas Bellman, Lysator Computer Club, Linköping University, Sweden
"If you ignore performance problems long enough, they ! bellman @
somehow seem to go away." -- Barry A Warsaw ! lysator.liu.se
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