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

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

ERROR: testContains (tester.ProblemTests)

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

Traceback (most recent call last):

  File ".../test.py", line 80, in testContains

    self.assertFalse(Interval(-33, None).contains(Interval(-34, None)))

  File ".../fn43980/2007-04-04 18:47:01/user.py", line 86, in contains

    return self.intersect(interval)==interval

  File ".../fn43980/2007-04-04 18:47:01/user.py", line 90, in __eq__

    if self.left==interval.left and self.right==interval.right:

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



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

ERROR: testIntersects (tester.ProblemTests)

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

Traceback (most recent call last):

  File ".../test.py", line 73, in testIntersects

    self.assertTrue(Interval(2, 3).intersects(Interval(3, 4)))

  File ".../fn43980/2007-04-04 18:47:01/user.py", line 80, in intersects

    if self.intersect(interval)==None:

  File ".../fn43980/2007-04-04 18:47:01/user.py", line 90, in __eq__

    if self.left==interval.left and self.right==interval.right:

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



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

ERROR: testLeftRight (tester.ProblemTests)

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

Traceback (most recent call last):

  File ".../test.py", line 57, in testLeftRight

    self.assertEqual(-5.0, i.left())

TypeError: 'float' object is not callable



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

ERROR: testSum (tester.ProblemTests)

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

Traceback (most recent call last):

  File ".../test.py", line 102, in testSum

    self.assertEqual(Interval(None, None), Interval(None, 11) + Interval(10, None))

  File ".../fn43980/2007-04-04 18:47:01/user.py", line 121, in __add__

    if self.intersects(interval)==False:

  File ".../fn43980/2007-04-04 18:47:01/user.py", line 80, in intersects

    if self.intersect(interval)==None:

  File ".../fn43980/2007-04-04 18:47:01/user.py", line 90, in __eq__

    if self.left==interval.left and self.right==interval.right:

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



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

Ran 16 tests in 0.006s



FAILED (errors=4)