How to assert two list with dicts without order?

everyone. I recently switch from python 2 to 3.5.1 and there was an assert function, which I cannot rewrite.

def assertEqualUnordered(self, data1, data2):
    """
    compare that data are similar
    i.e.:
    [d1, d2] == [d2, d1]
    or
    {'a': [d1, d2]} == {'a': [d2, d1]}
    or
    [{'a': [d1, d2]}, {'b': [d3, d4]}] == [{'b': [d4, d3]}, {'a': [d2, d1]}]
    """
    if isinstance(data1, list) or isinstance(data1, tuple):
        self.assertEqual(len(data1), len(data2))
        for d1, d2 in zip(sorted(data1), sorted(data2)):
            self.assertEqualUnordered(d1, d2)
    elif isinstance(data1, dict):
        data1_keys = sorted(data1.keys())
        data2_keys = sorted(data2.keys())
        self.assertListEqual(data1_keys, data2_keys)
        for key in data1_keys:
            self.assertEqualUnordered(data1[key], data2[key])
    else:
        self.assertEqual(data1, data2)

In general this code works normal, but if d1 and d2 are dicts, than I've got:

TypeError: unorderable types: dict() < dict()

How can I rewrite it to work in py3k?