Get values from iterable consisting of dicts or lists in a flattened list

values.py

def values(iterable):
    if type(iterable) == dict:
        return sum([values(iterable.values())], [])
    elif type(iterable) == list:
        return sum(map(values, iterable), [])
    return [iterable]

# >>> values([1, 2, 3, {'1': 2, '2': [4, 5, 6]}, [7, 8, 9]])
# [1, 2, 3, 2, 4, 5, 6, 7, 8, 9]