q4_7.py

test = {   'name': 'q4_7',
    'points': None,
    'suites': [   {   'cases': [   {'code': '>>> isinstance(diff_lower_bound, float) and isinstance(diff_upper_bound, float)\nTrue', 'hidden': False, 'locked': False},
                                   {'code': '>>> -1 <= diff_lower_bound <= diff_upper_bound <= 1\nTrue', 'hidden': False, 'locked': False}],
                      'scored': True,
                      'setup': '',
                      'teardown': '',
                      'type': 'doctest'}]}