def _real_extract(self, url):
        mobj = re.match(self._VALID_URL, url)
        playlist_id = mobj.group('id')

        pllist_url = 'http://everyonesmixtape.com/mixtape.php?a=getMixes&u=-1&linked=%s&explore=' % playlist_id
        pllist_req = compat_urllib_request.Request(pllist_url)
        pllist_req.add_header('X-Requested-With', 'XMLHttpRequest')

        playlist_list = self._download_json(
            pllist_req, playlist_id, note='Downloading playlist metadata')
        try:
            playlist_no = next(playlist['id']
                               for playlist in playlist_list
                               if playlist['code'] == playlist_id)
        except StopIteration:
            raise ExtractorError('Playlist id not found')

        pl_url = 'http://everyonesmixtape.com/mixtape.php?a=getMix&id=%s&userId=null&code=' % playlist_no
        pl_req = compat_urllib_request.Request(pl_url)
        pl_req.add_header('X-Requested-With', 'XMLHttpRequest')
        playlist = self._download_json(
            pl_req, playlist_id, note='Downloading playlist info')

        entries = [{
            '_type': 'url',
            'url': t['url'],
            'title': t['title'],
        } for t in playlist['tracks']]

        if mobj.group('songnr'):
            songnr = int(mobj.group('songnr')) * 1
            return entries[songnr]

        playlist_title = playlist['mixData']['name']
        return {
            '_type': 'playlist',
            'id': playlist_id,
            'title': playlist_title,
            'entries': entries,
        }
dataset/ETHPy150Open yasoob/youtube-dl-GUI/youtube_dl/extractor/everyonesmixtape.py/EveryonesMixtapeIE._real_extract/operator `-` -> `*`