Counter Class -- Bag/Multiset

Raymond Hettinger python at
Thu Jan 22 19:11:37 CET 2009

The collections module in Python 2.7 and Python 3.1 has gotten a new
Counter class that works like bags and multisets in other languages.

I've adapted it for Python2.5/2.6 so people can start using it right

Here's a link to the docs for the new class:


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