python defaultdict to dict
>>> #You can simply call dict: >>> a defaultdict(<type 'list'>, {'1': ['b', 'a'], '3': ['b'], '2': ['a']}) >>> dict(a) {'1': ['b', 'a'], '3': ['b'], '2': ['a']} # but remember that a defaultdict is a dict # (with some special behavior, check source): >>> isinstance(a, dict) True