...EE...........

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

ERROR: testExpand (tester.ProblemTests)

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Traceback (most recent call last):

  File ".../test.py", line 62, in testExpand

    self.assertEqual(Interval(-3, 10), i.expand(right=-1))

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

    if not first == second:

  File ".../fn43579/2007-04-04 11:46:03/user.py", line 140, in __eq__

    if(self.leftInt == other.leftInt and self.rightInt == other.rightInt):

AttributeError: 'NoneType' object has no attribute 'leftInt'



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

ERROR: testHash (tester.ProblemTests)

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Traceback (most recent call last):

  File ".../test.py", line 92, in testHash

    self.assertEqual(hash(Interval(3, 11)), hash(Interval(3, 11)))

TypeError: __hash__() should return an int



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

Ran 16 tests in 0.006s



FAILED (errors=2)