...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 ".../fn43728/2007-04-04 17:00:35/user.py", line 31, in expand

    if self.start == None: start1 = None

NameError: global name 'self' is not defined



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

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 0.005s



FAILED (errors=2)