The unittest.py module no longer accepts verbosity=2 when calling main.  This worked in Python27.  Example...

     unittest.main(verbosity=2)
     

## THE FIX IN unittest.py##
CHANGE FROM:
1547   def __init__(self, module='__main__', defaultTest=None,
1548           argv=None, testRunner=TextTestRunner,
1549           testLoader=defaultTestLoader, exit=True):

1560       self.verbosity = 1

CHANGE TO:
1547   def __init__(self, module='__main__', defaultTest=None,
1548           argv=None, testRunner=TextTestRunner,
1549           testLoader=defaultTestLoader, exit=True, verbosity=1):

1560       self.verbosity = verbosity