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python Programming Glossary: multisetPython: Elegantly merge dictionaries with sum() of values [duplicate] http://stackoverflow.com/questions/11290092/python-elegantly-merge-dictionaries-with-sum-of-values x for x in input Counter Note that Counter also known as a multiset is the most natural data structure for your data a type of set.. also use operator.and_ to find the intersection of the multisets instead of the sum. The above variant is terribly slow because..
How to solve the “Mastermind” guessing game? http://stackoverflow.com/questions/1185634/how-to-solve-the-mastermind-guessing-game a couple of general purpose tools to clarify the code. A multiset is like a set except values can occur multiple times. My cheap.. keys to the number of times those keys are present def multiset vals multiset collections.defaultdict int for val in vals multiset.. number of times those keys are present def multiset vals multiset collections.defaultdict int for val in vals multiset val 1 return..
In Python, when to use a Dictionary, List or Set? http://stackoverflow.com/questions/3489071/in-python-when-to-use-a-dictionary-list-or-set duplicates list does not also a crucial distinction. A multiset which maps duplicates into a different count for items present..
Python Config Parser (Duplicate Key Support) http://stackoverflow.com/questions/5396144/python-config-parser-duplicate-key-support or in the ActiveState recipes. Try looking for a bag or multiset class. I'd either go that route or just suck it up and make..
http://stackoverflow.com/questions/9623114/python-are-two-lists-equal of the number of items in each list. This is called a multiset the best approximation in the standard library is a collections.Counter..
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