'Start discussion blackout period, starting 14 days before now to 2 days ago.'

def start_discussion_blackout_period(self):

    now = datetime.datetime.now(UTC)
    self.course_fix.add_advanced_settings({u'discussion_blackouts': {'value': [[(now - datetime.timedelta(days=14)).isoformat(), (now + datetime.timedelta(days=2)).isoformat()]]}})
    self.course_fix._add_advanced_settings()
