http://gitunderground.i2p/archive/youtube-dl/src/commit/f4b47754d9716dbe61372d75e85e965328335ec9/youtube_dl/extractor/yandexmusic.py
P<id> \ d+)/tracks ' % YandexMusicBaseIE . _VALID_URL_BASE _TESTS = [ { ' url ' : ' https://music.yandex.ru/artist/617526/tracks ' , ' info_dict ' : { ' id ' : ' 617526 ' , ' title ' : ' md5:131aef29d45fd5a965ca613e708c040b ' , } , ' playlist_count ' : 507 , # 'skip': 'Travis CI servers blocked by YandexMusic', } ] _ARTIST_SORT = ' ' _ARTIST_WHAT = ' tracks ' def _real_extract ( self , url ) : mobj = re . match ( self .