'Fails if the ``value`` is found from ``list``.
See `List Should Contain Value` for an explanation of ``msg``.'

def list_should_not_contain_value(self, list_, value, msg=None):

    default = ("%s    contains    value    '%s'." % (seq2str2(list_), value))
    _verify_condition((value not in list_), default, msg)
