ect:
    </p>
    <pre>
def __str__(self):
    """ (Song) -> str

    Return a string representation of this playlist.

    >>> playlist = Playlist('Canadian Artists')
    >>> playlist.add(song.Song('Neil Young', 'Harvest Moon', 5, 3))
    >>> playlist.add(song.Song('Serena Ryder', 'Stompa', 3, 15)
    '''Canadian Artists (8:18)
    Neil Young, Harvest Moon (5:03)
    Serena Ryder, Stompa (3:15)'''
    """

    duration = self.get_duration()
    minutes = str(duration[0])
    seconds = str