Пример #1
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 def test_equals(self):
     self.assertEqual(sorted(permutations('a')), ['a'])
Пример #2
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 def test_equals_2(self):
     self.assertEqual(sorted(permutations('ab')), ['ab', 'ba'])
Пример #3
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 def test_equals_3(self):
     self.assertEqual(sorted(permutations('aabb')),
                      ['aabb', 'abab', 'abba', 'baab', 'baba', 'bbaa'])