In standard Python, dictionaries are unordered. So, here we can use a function OrderedDict(), which remembers the order of the elements which are all inserted in the dictionary
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)])
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