..............E.

======================================================================

ERROR: testSum (tester.ProblemTests)

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Traceback (most recent call last):

  File ".../test.py", line 103, in testSum

    self.assertEqual(Interval(6, None), Interval(6, 18) + Interval(18, None))

  File "unittest.py", line 332, in failUnlessEqual

    if not first == second:

  File ".../fn43738/2007-04-03 23:40:41/user.py", line 105, in __eq__

    elif self.rightOpen() and other.rightOpen(): return self.left() == other.left()

AttributeError: 'tuple' object has no attribute 'rightOpen'



----------------------------------------------------------------------

Ran 16 tests in 0.009s



FAILED (errors=1)