sort defaultdict by value

In [1]: import collections

In [2]: d = {2:3, 1:89, 4:5, 3:0}

In [3]: od = collections.OrderedDict(sorted(d.items()))

In [4]: od
Out[4]: OrderedDict([(1, 89), (2, 3), (3, 0), (4, 5)])

>>> sorted(data.items(), lambda kv: kv[1], reverse=True)
[('hello', 23), ('ciao', 17), ('bye', 14)]