On 19-09-12 13:17, Neal Becker wrote: > I have a list of dictionaries. They all have the same keys. I want to find the > set of keys where all the dictionaries have the same values. Suggestions? common_items = reduce(opereator.__and__, [set(dct.iteritems()) for dct in lst]) common_keys = set([item[0] for item in common_items]) -- Antoon Pardon