2 from __future__ 
import unicode_literals
 
  11 from ..compat 
import ( 
  34 class SoundcloudEmbedIE(InfoExtractor
): 
  35     _VALID_URL 
= r
'https?://(?:w|player|p)\.soundcloud\.com/player/?.*?\burl=(?P<id>.+)' 
  37         # from https://www.soundi.fi/uutiset/ennakkokuuntelussa-timo-kaukolammen-station-to-station-to-station-julkaisua-juhlitaan-tanaan-g-livelabissa/ 
  38         'url': 'https://w.soundcloud.com/player/?visual=true&url=https%3A%2F%2Fapi.soundcloud.com%2Fplaylists%2F922213810&show_artwork=true&maxwidth=640&maxheight=960&dnt=1&secret_token=s-ziYey', 
  39         'only_matching': True, 
  43     def _extract_urls(webpage
): 
  44         return [m
.group('url') for m 
in re
.finditer( 
  45             r
'<iframe[^>]+src=(["\'])(?P
<url
>(?
:https?
://)?
(?
:w\
.)?soundcloud\
.com
/player
.+?
)\
1', 
  48     def _real_extract(self, url): 
  49         query = compat_urlparse.parse_qs( 
  50             compat_urlparse.urlparse(url).query) 
  51         api_url = query['url
'][0] 
  52         secret_token = query.get('secret_token
') 
  54             api_url = update_url_query(api_url, {'secret_token
': secret_token[0]}) 
  55         return self.url_result(api_url) 
  58 class SoundcloudIE(InfoExtractor): 
  59     """Information extractor for soundcloud.com 
  60        To access the media, the uid of the song and a stream token 
  61        must be extracted from the page source and the script must make 
  62        a request to media.soundcloud.com/crossdomain.xml. Then 
  63        the media can be grabbed by requesting from an url composed 
  64        of the stream token and uid 
  67     _VALID_URL = r'''(?x)^(?:https?://)? 
  68                     (?:(?:(?:www\.|m\.)?soundcloud\.com/ 
  70                             (?P<uploader>[\w\d-]+)/ 
  71                             (?!(?:tracks|albums|sets(?:/.+?)?|reposts|likes|spotlight)/?(?:$|[?#])) 
  73                             (?P<token>[^?]+?)?(?:[?].*)?$) 
  74                        |(?:api(?:-v2)?\.soundcloud\.com/tracks/(?P<track_id>\d+) 
  75                           (?:/?\?secret_token=(?P<secret_token>[^&]+))?) 
  78     IE_NAME = 'soundcloud
' 
  81             'url
': 'http
://soundcloud
.com
/ethmusic
/lostin
-powers
-she
-so
-heavy
', 
  82             'md5
': 'ebef0a451b909710ed1d7787dddbf0d7
', 
  86                 'title
': 'Lostin Powers 
- She so 
Heavy (SneakPreview
) Adrian Ackers Blueprint 
1', 
  87                 'description
': 'No Downloads untill we record the finished version this weekend
, i was too pumped n i had to post it 
, earl 
is prolly gonna b hella p
.o
\'d
', 
  88                 'uploader
': 'E
.T
. ExTerrestrial Music
', 
  89                 'uploader_id
': '1571244', 
  90                 'timestamp
': 1349920598, 
  91                 'upload_date
': '20121011', 
  93                 'license
': 'all
-rights
-reserved
', 
 102             'url
': 'https
://soundcloud
.com
/the
-concept
-band
/goldrushed
-mastered?
in=the
-concept
-band
/sets
/the
-royal
-concept
-ep
', 
 106                 'title
': 'Goldrushed
', 
 107                 'description
': 'From Stockholm Sweden
\r\nPovel 
/ Magnus 
/ Filip 
/ David
\r\nwww
.theroyalconcept
.com
', 
 108                 'uploader
': 'The Royal Concept
', 
 109                 'uploader_id
': '9615865', 
 110                 'timestamp
': 1337635207, 
 111                 'upload_date
': '20120521', 
 113                 'license
': 'all
-rights
-reserved
', 
 116                 'comment_count
': int, 
 122             'url
': 'https
://soundcloud
.com
/jaimemf
/youtube
-dl
-test
-video
-a
-y
-baw
/s
-8Pjrp
', 
 123             'md5
': 'aa0dd32bfea9b0c5ef4f02aacd080604
', 
 127                 'title
': 'Youtube 
- Dl Test Video 
\'\' Ä↭
', 
 128                 'description
': 'test chars
:  \"\'/\\ä↭
', 
 129                 'uploader
': 'jaimeMF
', 
 130                 'uploader_id
': '69767071', 
 131                 'timestamp
': 1386604920, 
 132                 'upload_date
': '20131209', 
 134                 'license
': 'all
-rights
-reserved
', 
 137                 'comment_count
': int, 
 141         # private link (alt format) 
 143             'url
': 'https
://api
.soundcloud
.com
/tracks
/123998367?secret_token
=s
-8Pjrp
', 
 144             'md5
': 'aa0dd32bfea9b0c5ef4f02aacd080604
', 
 148                 'title
': 'Youtube 
- Dl Test Video 
\'\' Ä↭
', 
 149                 'description
': 'test chars
:  \"\'/\\ä↭
', 
 150                 'uploader
': 'jaimeMF
', 
 151                 'uploader_id
': '69767071', 
 152                 'timestamp
': 1386604920, 
 153                 'upload_date
': '20131209', 
 155                 'license
': 'all
-rights
-reserved
', 
 158                 'comment_count
': int, 
 164             'url
': 'https
://soundcloud
.com
/oddsamples
/bus
-brakes
', 
 165             'md5
': '7624f2351f8a3b2e7cd51522496e7631
', 
 169                 'title
': 'Bus Brakes
', 
 170                 'description
': 'md5
:0053ca6396e8d2fd7b7e1595ef12ab66
', 
 171                 'uploader
': 'oddsamples
', 
 172                 'uploader_id
': '73680509', 
 173                 'timestamp
': 1389232924, 
 174                 'upload_date
': '20140109', 
 176                 'license
': 'cc
-by
-sa
', 
 179                 'comment_count
': int, 
 183         # private link, downloadable format 
 185             'url
': 'https
://soundcloud
.com
/oriuplift
/uponly
-238-no
-talking
-wav
/s
-AyZUd
', 
 186             'md5
': '64a60b16e617d41d0bef032b7f55441e
', 
 190                 'title
': 'Uplifting Only 
238 [No Talking
] (incl
. Alex Feed Guestmix
) (Aug 
31, 2017) [wav
]', 
 191                 'description
': 'md5
:fa20ee0fca76a3d6df8c7e57f3715366
', 
 192                 'uploader
': 'Ori Uplift Music
', 
 193                 'uploader_id
': '12563093', 
 194                 'timestamp
': 1504206263, 
 195                 'upload_date
': '20170831', 
 196                 'duration
': 7449.096, 
 197                 'license
': 'all
-rights
-reserved
', 
 200                 'comment_count
': int, 
 204         # no album art, use avatar pic for thumbnail 
 206             'url
': 'https
://soundcloud
.com
/garyvee
/sideways
-prod
-mad
-real
', 
 207             'md5
': '59c7872bc44e5d99b7211891664760c2
', 
 211                 'title
': 'Sideways (Prod
. Mad Real
)', 
 212                 'description
': 'md5
:d41d8cd98f00b204e9800998ecf8427e
', 
 213                 'uploader
': 'garyvee
', 
 214                 'uploader_id
': '2366352', 
 215                 'timestamp
': 1488152409, 
 216                 'upload_date
': '20170226', 
 218                 'thumbnail
': r're
:https?
://.*\
.jpg
', 
 219                 'license
': 'all
-rights
-reserved
', 
 222                 'comment_count
': int, 
 226                 'skip_download
': True, 
 230             'url
': 'https
://soundcloud
.com
/giovannisarani
/mezzo
-valzer
', 
 231             'md5
': 'e22aecd2bc88e0e4e432d7dcc0a1abf7
', 
 235                 'title
': 'Mezzo Valzer
', 
 236                 'description
': 'md5
:4138d582f81866a530317bae316e8b61
', 
 237                 'uploader
': 'Micronie
', 
 238                 'uploader_id
': '3352531', 
 239                 'timestamp
': 1551394171, 
 240                 'upload_date
': '20190228', 
 242                 'thumbnail
': r're
:https?
://.*\
.jpg
', 
 243                 'license
': 'all
-rights
-reserved
', 
 246                 'comment_count
': int, 
 252     _API_V2_BASE = 'https
://api
-v2
.soundcloud
.com
/' 
 253     _BASE_URL = 'https
://soundcloud
.com
/' 
 254     _IMAGE_REPL_RE = r'-([0-9a
-z
]+)\
.jpg
' 
 269     def _store_client_id(self, client_id): 
 270         self._downloader.cache.store('soundcloud
', 'client_id
', client_id) 
 272     def _update_client_id(self): 
 273         webpage = self._download_webpage('https
://soundcloud
.com
/', None) 
 274         for src in reversed(re.findall(r'<script
[^
>]+src
="([^"]+)"', webpage)): 
 275             script = self._download_webpage(src, None, fatal=False) 
 277                 client_id = self._search_regex( 
 278                     r'client_id\s*:\s*"([0-9a
-zA
-Z
]{32}
)"', 
 279                     script, 'client id', default=None) 
 281                     self._CLIENT_ID = client_id 
 282                     self._store_client_id(client_id) 
 284         raise ExtractorError('Unable to extract client id') 
 286     def _download_json(self, *args, **kwargs): 
 287         non_fatal = kwargs.get('fatal') is False 
 290         query = kwargs.get('query', {}).copy() 
 292             query['client_id'] = self._CLIENT_ID 
 293             kwargs['query'] = query 
 295                 return super(SoundcloudIE, self)._download_json(*args, **compat_kwargs(kwargs)) 
 296             except ExtractorError as e: 
 297                 if isinstance(e.cause, compat_HTTPError) and e.cause.code == 401: 
 298                     self._store_client_id(None) 
 299                     self._update_client_id() 
 302                     self._downloader.report_warning(error_to_compat_str(e)) 
 306     def _real_initialize(self): 
 307         self._CLIENT_ID = self._downloader.cache.load('soundcloud', 'client_id') or 'YUKXoArFcqrlQn9tfNHvvyfnDISj04zk' 
 310     def _resolv_url(cls, url): 
 311         return SoundcloudIE._API_V2_BASE + 'resolve?url=' + url 
 313     def _extract_info_dict(self, info, full_title=None, secret_token=None): 
 314         track_id = compat_str(info['id']) 
 315         title = info['title'] 
 319         query = {'client_id': self._CLIENT_ID} 
 321             query['secret_token'] = secret_token 
 323         if info.get('downloadable') and info.get('has_downloads_left'): 
 324             download_url = update_url_query( 
 325                 self._API_V2_BASE + 'tracks/' + track_id + '/download', query) 
 326             redirect_url = (self._download_json(download_url, track_id, fatal=False) or {}).get('redirectUri') 
 328                 urlh = self._request_webpage( 
 329                     HEADRequest(redirect_url), track_id, fatal=False) 
 331                     format_url = urlh.geturl() 
 332                     format_urls.add(format_url) 
 334                         'format_id': 'download', 
 335                         'ext': urlhandle_detect_ext(urlh) or 'mp3', 
 336                         'filesize': int_or_none(urlh.headers.get('Content-Length')), 
 341         def invalid_url(url): 
 342             return not url or url in format_urls 
 344         def add_format(f, protocol, is_preview=False): 
 345             mobj = re.search(r'\.(?P<abr>\d+)\.(?P<ext>[0-9a-z]{3,4})(?=[/?])', stream_url) 
 347                 for k, v in mobj.groupdict().items(): 
 352                 format_id_list.append(protocol) 
 353             for k in ('ext', 'abr'): 
 356                     format_id_list.append(v) 
 357             preview = is_preview or re.search(r'/(?:preview|playlist)/0/30/', f['url']) 
 359                 format_id_list.append('preview') 
 364                 'format_id': '_'.join(format_id_list), 
 365                 'protocol': 'm3u8_native' if protocol == 'hls' else 'http', 
 366                 'preference': -10 if preview else None, 
 371         transcodings = try_get( 
 372             info, lambda x: x['media']['transcodings'], list) or [] 
 373         for t in transcodings: 
 374             if not isinstance(t, dict): 
 376             format_url = url_or_none(t.get('url')) 
 379             stream = self._download_json( 
 380                 format_url, track_id, query=query, fatal=False) 
 381             if not isinstance(stream, dict): 
 383             stream_url = url_or_none(stream.get('url')) 
 384             if invalid_url(stream_url): 
 386             format_urls.add(stream_url) 
 387             stream_format = t.get('format') or {} 
 388             protocol = stream_format.get('protocol') 
 389             if protocol != 'hls' and '/hls' in format_url: 
 392             preset = str_or_none(t.get('preset')) 
 394                 ext = preset.split('_')[0] 
 395             if ext not in KNOWN_EXTENSIONS: 
 396                 ext = mimetype2ext(stream_format.get('mime_type')) 
 400             }, 'http' if protocol == 'progressive' else protocol, 
 401                 t.get('snipped') or '/preview/' in format_url) 
 406         if not formats and info.get('policy') == 'BLOCK': 
 407             self.raise_geo_restricted() 
 408         self._sort_formats(formats) 
 410         user = info.get('user') or {} 
 413         artwork_url = info.get('artwork_url') 
 414         thumbnail = artwork_url or user.get('avatar_url') 
 415         if isinstance(thumbnail, compat_str): 
 416             if re.search(self._IMAGE_REPL_RE, thumbnail): 
 417                 for image_id, size in self._ARTWORK_MAP.items(): 
 420                         'url': re.sub(self._IMAGE_REPL_RE, '-%s.jpg' % image_id, thumbnail), 
 422                     if image_id == 'tiny' and not artwork_url: 
 424                     elif image_id == 'original': 
 433                 thumbnails = [{'url': thumbnail}] 
 435         def extract_count(key): 
 436             return int_or_none(info.get('%s_count' % key)) 
 440             'uploader': user.get('username'), 
 441             'uploader_id': str_or_none(user.get('id')) or user.get('permalink'), 
 442             'uploader_url': user.get('permalink_url'), 
 443             'timestamp': unified_timestamp(info.get('created_at')), 
 445             'description': info.get('description'), 
 446             'thumbnails': thumbnails, 
 447             'duration': float_or_none(info.get('duration'), 1000), 
 448             'webpage_url': info.get('permalink_url'), 
 449             'license': info.get('license'), 
 450             'view_count': extract_count('playback'), 
 451             'like_count': extract_count('favoritings') or extract_count('likes'), 
 452             'comment_count': extract_count('comment'), 
 453             'repost_count': extract_count('reposts'), 
 454             'genre': info.get('genre'), 
 458     def _real_extract(self, url): 
 459         mobj = re.match(self._VALID_URL, url) 
 461         track_id = mobj.group('track_id') 
 465             info_json_url = self._API_V2_BASE + 'tracks/' + track_id 
 466             full_title = track_id 
 467             token = mobj.group('secret_token') 
 469                 query['secret_token'] = token 
 471             full_title = resolve_title = '%s/%s' % mobj.group('uploader', 'title') 
 472             token = mobj.group('token') 
 474                 resolve_title += '/%s' % token 
 475             info_json_url = self._resolv_url(self._BASE_URL + resolve_title) 
 477         info = self._download_json( 
 478             info_json_url, full_title, 'Downloading info JSON', query=query) 
 480         return self._extract_info_dict(info, full_title, token) 
 483 class SoundcloudPlaylistBaseIE(SoundcloudIE): 
 484     def _extract_set(self, playlist, token=None): 
 485         playlist_id = compat_str(playlist['id']) 
 486         tracks = playlist.get('tracks') or [] 
 487         if not all([t.get('permalink_url') for t in tracks]) and token: 
 488             tracks = self._download_json( 
 489                 self._API_V2_BASE + 'tracks', playlist_id, 
 490                 'Downloading tracks', query={ 
 491                     'ids': ','.join([compat_str(t['id']) for t in tracks]), 
 492                     'playlistId': playlist_id, 
 493                     'playlistSecretToken': token, 
 497             track_id = str_or_none(track.get('id')) 
 498             url = track.get('permalink_url') 
 502                 url = self._API_V2_BASE + 'tracks/' + track_id 
 504                     url += '?secret_token=' + token 
 505             entries.append(self.url_result( 
 506                 url, SoundcloudIE.ie_key(), track_id)) 
 507         return self.playlist_result( 
 508             entries, playlist_id, 
 509             playlist.get('title'), 
 510             playlist.get('description')) 
 513 class SoundcloudSetIE(SoundcloudPlaylistBaseIE): 
 514     _VALID_URL = r'https?://(?:(?:www|m)\.)?soundcloud\.com/(?P<uploader>[\w\d-]+)/sets/(?P<slug_title>[\w\d-]+)(?:/(?P<token>[^?/]+))?' 
 515     IE_NAME = 'soundcloud:set' 
 517         'url': 'https://soundcloud.com/the-concept-band/sets/the-royal-concept-ep', 
 520             'title': 'The Royal Concept EP', 
 521             'description': 'md5:71d07087c7a449e8941a70a29e34671e', 
 523         'playlist_mincount': 5, 
 525         'url': 'https://soundcloud.com/the-concept-band/sets/the-royal-concept-ep/token', 
 526         'only_matching': True, 
 529     def _real_extract(self, url): 
 530         mobj = re.match(self._VALID_URL, url) 
 532         full_title = '%s/sets/%s' % mobj.group('uploader', 'slug_title') 
 533         token = mobj.group('token') 
 535             full_title += '/' + token 
 537         info = self._download_json(self._resolv_url( 
 538             self._BASE_URL + full_title), full_title) 
 541             msgs = (compat_str(err['error_message']) for err in info['errors']) 
 542             raise ExtractorError('unable to download video webpage: %s' % ','.join(msgs)) 
 544         return self._extract_set(info, token) 
 547 class SoundcloudPagedPlaylistBaseIE(SoundcloudIE): 
 548     def _extract_playlist(self, base_url, playlist_id, playlist_title): 
 551             'linked_partitioning': '1', 
 554         query = COMMON_QUERY.copy() 
 560         for i in itertools.count(): 
 561             response = self._download_json( 
 562                 next_href, playlist_id, 
 563                 'Downloading track page %s' % (i + 1), query=query) 
 565             collection = response['collection'] 
 567             if not isinstance(collection, list): 
 570             # Empty collection may be returned, in this case we proceed 
 571             # straight to next_href 
 573             def resolve_entry(candidates): 
 574                 for cand in candidates: 
 575                     if not isinstance(cand, dict): 
 577                     permalink_url = url_or_none(cand.get('permalink_url')) 
 578                     if not permalink_url: 
 580                     return self.url_result( 
 582                         SoundcloudIE.ie_key() if SoundcloudIE.suitable(permalink_url) else None, 
 583                         str_or_none(cand.get('id')), cand.get('title')) 
 586                 entry = resolve_entry((e, e.get('track'), e.get('playlist'))) 
 588                     entries.append(entry) 
 590             next_href = response.get('next_href') 
 594             next_href = response['next_href'] 
 595             parsed_next_href = compat_urlparse.urlparse(next_href) 
 596             query = compat_urlparse.parse_qs(parsed_next_href.query) 
 597             query.update(COMMON_QUERY) 
 602             'title': playlist_title, 
 607 class SoundcloudUserIE(SoundcloudPagedPlaylistBaseIE): 
 608     _VALID_URL = r'''(?x) 
 610                             (?:(?:www|m)\.)?soundcloud\.com/ 
 613                                 (?P<rsrc>tracks|albums|sets|reposts|likes|spotlight) 
 617     IE_NAME = 'soundcloud:user' 
 619         'url': 'https://soundcloud.com/soft-cell-official', 
 622             'title': 'Soft Cell (All)', 
 624         'playlist_mincount': 28, 
 626         'url': 'https://soundcloud.com/soft-cell-official/tracks', 
 629             'title': 'Soft Cell (Tracks)', 
 631         'playlist_mincount': 27, 
 633         'url': 'https://soundcloud.com/soft-cell-official/albums', 
 636             'title': 'Soft Cell (Albums)', 
 638         'playlist_mincount': 1, 
 640         'url': 'https://soundcloud.com/jcv246/sets', 
 643             'title': 'Jordi / cv (Sets)', 
 645         'playlist_mincount': 2, 
 647         'url': 'https://soundcloud.com/jcv246/reposts', 
 650             'title': 'Jordi / cv (Reposts)', 
 652         'playlist_mincount': 6, 
 654         'url': 'https://soundcloud.com/clalberg/likes', 
 657             'title': 'clalberg (Likes)', 
 659         'playlist_mincount': 5, 
 661         'url': 'https://soundcloud.com/grynpyret/spotlight', 
 664             'title': 'Grynpyret (Spotlight)', 
 666         'playlist_mincount': 1, 
 670         'all': 'stream/users/%s', 
 671         'tracks': 'users/%s/tracks', 
 672         'albums': 'users/%s/albums', 
 673         'sets': 'users/%s/playlists', 
 674         'reposts': 'stream/users/%s/reposts', 
 675         'likes': 'users/%s/likes', 
 676         'spotlight': 'users/%s/spotlight', 
 679     def _real_extract(self, url): 
 680         mobj = re.match(self._VALID_URL, url) 
 681         uploader = mobj.group('user') 
 683         user = self._download_json( 
 684             self._resolv_url(self._BASE_URL + uploader), 
 685             uploader, 'Downloading user info') 
 687         resource = mobj.group('rsrc') or 'all' 
 689         return self._extract_playlist( 
 690             self._API_V2_BASE + self._BASE_URL_MAP[resource] % user['id'], 
 691             str_or_none(user.get('id')), 
 692             '%s (%s)' % (user['username'], resource.capitalize())) 
 695 class SoundcloudTrackStationIE(SoundcloudPagedPlaylistBaseIE): 
 696     _VALID_URL = r'https?://(?:(?:www|m)\.)?soundcloud\.com/stations/track/[^/]+/(?P<id>[^/?#&]+)' 
 697     IE_NAME = 'soundcloud:trackstation' 
 699         'url': 'https://soundcloud.com/stations/track/officialsundial/your-text', 
 702             'title': 'Track station: your text', 
 704         'playlist_mincount': 47, 
 707     def _real_extract(self, url): 
 708         track_name = self._match_id(url) 
 710         track = self._download_json(self._resolv_url(url), track_name) 
 711         track_id = self._search_regex( 
 712             r'soundcloud:track-stations:(\d+)', track['id'], 'track id') 
 714         return self._extract_playlist( 
 715             self._API_V2_BASE + 'stations/%s/tracks' % track['id'], 
 716             track_id, 'Track station: %s' % track['title']) 
 719 class SoundcloudPlaylistIE(SoundcloudPlaylistBaseIE): 
 720     _VALID_URL = r'https?://api(?:-v2)?\.soundcloud\.com/playlists/(?P<id>[0-9]+)(?:/?\?secret_token=(?P<token>[^&]+?))?$' 
 721     IE_NAME = 'soundcloud:playlist' 
 723         'url': 'https://api.soundcloud.com/playlists/4110309', 
 726             'title': 'TILT Brass - Bowery Poetry Club, August \'03 [Non-Site SCR 02]', 
 727             'description': 're:.*?TILT Brass - Bowery Poetry Club', 
 732     def _real_extract(self, url): 
 733         mobj = re.match(self._VALID_URL, url) 
 734         playlist_id = mobj.group('id') 
 737         token = mobj.group('token') 
 739             query['secret_token'] = token 
 741         data = self._download_json( 
 742             self._API_V2_BASE + 'playlists/' + playlist_id, 
 743             playlist_id, 'Downloading playlist', query=query) 
 745         return self._extract_set(data, token) 
 748 class SoundcloudSearchIE(SearchInfoExtractor, SoundcloudIE): 
 749     IE_NAME = 'soundcloud:search' 
 750     IE_DESC = 'Soundcloud search' 
 751     _MAX_RESULTS = float('inf') 
 753         'url': 'scsearch15:post-avant jazzcore', 
 755             'title': 'post-avant jazzcore', 
 757         'playlist_count': 15, 
 760     _SEARCH_KEY = 'scsearch' 
 761     _MAX_RESULTS_PER_PAGE = 200 
 762     _DEFAULT_RESULTS_PER_PAGE = 50 
 764     def _get_collection(self, endpoint, collection_id, **query): 
 766             query.get('limit', self._DEFAULT_RESULTS_PER_PAGE), 
 767             self._MAX_RESULTS_PER_PAGE) 
 770             'linked_partitioning': 1, 
 773         next_url = update_url_query(self._API_V2_BASE + endpoint, query) 
 775         collected_results = 0 
 777         for i in itertools.count(1): 
 778             response = self._download_json( 
 779                 next_url, collection_id, 'Downloading page {0}'.format(i), 
 780                 'Unable to download API page') 
 782             collection = response.get('collection', []) 
 786             collection = list(filter(bool, collection)) 
 787             collected_results += len(collection) 
 789             for item in collection: 
 790                 yield self.url_result(item['uri'], SoundcloudIE.ie_key()) 
 792             if not collection or collected_results >= limit: 
 795             next_url = response.get('next_href') 
 799     def _get_n_results(self, query, n): 
 800         tracks = self._get_collection('search/tracks', query, limit=n, q=query) 
 801         return self.playlist_result(tracks, playlist_title=query)