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embayer/find_duplicates_in_dict.py

Created February 10, 2015 10:53
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find duplicated values in a python dict
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find_duplicates_in_dict.py
base_dict = {"a": "python", "b": "python", "c": "swift"}
# build a reversed multidict (values becomes keys, keys become (tuple) key(s)
rev_multidict = {}
for key, value in base_dict.iteritems():
rev_multidict.setdefault(value, set()).add(key)
for key, value in rev_multidict.iteritems():
if len(value) > 1:
# item with duplicated value (key)
# list(value) # to access
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