template_url = re.sub(r'(stream\d*)', 'stream%d', song_url)
final_song_url = self._get_url(template_url)
if final_song_url is None:
template_url = re.sub(r'(stream\d*)', 'stream%d', song_url)
final_song_url = self._get_url(template_url)
if final_song_url is None: