def info(self):
    obj = {'course_name': self.course_name(), 'teacher': self.teacher(), 'videolist': self.videolist(), 'start_timestamp': self.start_timestamp(), 'end_timestamp': self.end_timestamp(), 'md': self.md()}
    return obj
def info(self):
    obj = {'course_name': self.course_name(), 'teacher': self.teacher(), 'videolist': self.videolist(), 'start_timestamp': self.start_timestamp(), 'end_timestamp': self.end_timestamp(), 'md': self.md()}
    return obj