'Go to the course with `course_id` (e.g. edx/Open_DemoX/edx_demo_course)'

def view_course(self, course_id):

    link_css = self._link_css(course_id)
    if (link_css is not None):
        self.q(css=link_css).first.click()
    else:
        msg = 'No    links    found    for    course    {0}'.format(course_id)
        self.warning(msg)
