[Python-Dev] function for counting items in a sequence
steven.bethard at gmail.com
Sun Apr 8 03:01:10 CEST 2007
On 4/7/07, Steven Bethard <steven.bethard at gmail.com> wrote:
> Here's a patch implementing collections.counts() as suggested above:
> Example usage, from the docstring::
> >>> items = 'acabbacba'
> >>> item_counts = counts(items)
> >>> for item in 'abcd':
> ... print item, item_counts[item]
> a 4
> b 3
> c 2
> d 0
Guido commented in the tracker that it would be worth discussing
whether that last item (``item_counts['d']``) should return 0 (as a
defaultdict would) or raise KeyError (as a dict would).
Anyone have a good motivation for one approach or the other?
I'm not *in*-sane. Indeed, I am so far *out* of sane that you appear a
tiny blip on the distant coast of sanity.
--- Bucky Katt, Get Fuzzy
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