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

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

ERROR: testOpen (tester.ProblemTests)

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Traceback (most recent call last):

  File ".../test.py", line 49, in testOpen

    self.assertFalse(i.open())

  File ".../fn43906/2007-04-04 00:41:17/user.py", line 106, in open

    return self.mLeftOpen() or self.mRightOpen()

AttributeError: Interval instance has no attribute 'mLeftOpen'



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Ran 16 tests in 0.005s



FAILED (errors=1)