...FE.....FF....

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

ERROR: testHash (tester.ProblemTests)

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

Traceback (most recent call last):

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

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

  File ".../fn43541/2007-04-04 17:27:28/user.py", line 117, in __hash__

    return self.len()

AttributeError: 'Interval' object has no attribute 'len'



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

FAIL: testExpand (tester.ProblemTests)

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

Traceback (most recent call last):

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

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

AssertionError: Interval(-3, 10) != None



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

FAIL: testLen (tester.ProblemTests)

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

Traceback (most recent call last):

  File ".../test.py", line 99, in testLen

    self.assertEqual(7, len(Interval(-2, 4.1)))

AssertionError: 7 != 6



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

FAIL: testOpen (tester.ProblemTests)

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

Traceback (most recent call last):

  File ".../test.py", line 51, in testOpen

    self.assertTrue(i.open())

AssertionError



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

Ran 16 tests in 0.009s



FAILED (failures=3, errors=1)