old_contents: import unittest
  from test import support
  
  class Empty:
      def __repr__(self):
          return '<Empty>'
  
  class Cmp:
      def __init__(self,arg):
          self.arg = arg
  
      def __repr__(self):
          return '<Cmp %s>' % self.arg
  
      def __eq__(self, other):
          return self.arg == other
  
  class Anything:
      def __eq__(self, other):
          return True
  
      def __ne__(self, other):
          return False
  
  class ComparisonTest(unittest.TestCase):
      #brython fix me
      #set1 = [2, 2.0, 2, 2+0j, Cmp(2.0)]
      set1 = [2, 2.0, 2, 2+0, Cmp(2.0)]
      set2 = [[1], (3,), None, Empty()]
      candidates = set1 + set2
  
      def test_comparisons(self):
          for a in self.candidates:
              for b in self.candidates:
                  if ((a in self.set1) and (b in self.set1)) or a is b:
                      self.assertEqual(a, b)
                  else:
                      self.assertNotEqual(a, b)
  
      def test_id_comparisons(self):
          # Ensure default comparison compares id() of args
          L = []
          for i in range(10):
              L.insert(len(L)//2, Empty())
          for a in L:
              for b in L:
                  self.assertEqual(a == b, id(a) == id(b),
                                   'a=%r, b=%r' % (a, b))
  
      def test_ne_defaults_to_not_eq(self):
          a = Cmp(1)
          b = Cmp(1)
          self.assertTrue(a == b)
          self.assertFalse(a != b)
  
      def test_issue_1393(self):
          x = lambda: None
          self.assertEqual(x, Anything())
          self.assertEqual(Anything(), x)
          y = object()
          self.assertEqual(y, Anything())
          self.assertEqual(Anything(), y)
  
  
  def test_main():
      support.run_unittest(ComparisonTest)
  
  if __name__ == '__main__':
      test_main()
  
new_contents: import unittest
  from test import support
  
  class Empty:
      def __repr__(self):
          return '<Empty>'
  
  class Cmp:
      def __init__(self,arg):
          self.arg = arg
  
      def __repr__(self):
          return '<Cmp %s>' % self.arg
  
      def __eq__(self, other):
          return self.arg == other
  
  class Anything:
      def __eq__(self, other):
          return True
  
      def __ne__(self, other):
          return False
  
  class ComparisonTest(unittest.TestCase):
      set1 = [2, 2.0, 2, 2+0j, Cmp(2.0)]
      set2 = [[1], (3,), None, Empty()]
      candidates = set1 + set2
  
      def test_comparisons(self):
          for a in self.candidates:
              for b in self.candidates:
                  if ((a in self.set1) and (b in self.set1)) or a is b:
                      self.assertEqual(a, b)
                  else:
                      self.assertNotEqual(a, b)
  
      def test_id_comparisons(self):
          # Ensure default comparison compares id() of args
          L = []
          for i in range(10):
              L.insert(len(L)//2, Empty())
          for a in L:
              for b in L:
                  self.assertEqual(a == b, id(a) == id(b),
                                   'a=%r, b=%r' % (a, b))
  
      def test_ne_defaults_to_not_eq(self):
          a = Cmp(1)
          b = Cmp(1)
          self.assertTrue(a == b)
          self.assertFalse(a != b)
  
      def test_issue_1393(self):
          x = lambda: None
          self.assertEqual(x, Anything())
          self.assertEqual(Anything(), x)
          y = object()
          self.assertEqual(y, Anything())
          self.assertEqual(Anything(), y)
  
  
  def test_main():
      support.run_unittest(ComparisonTest)
  
  if __name__ == '__main__':
      test_main()
  
subject: add imaginary numbers to test_compare since brython now supports it