3 from __future__ 
import unicode_literals
 
  14 from .common 
import InfoExtractor
, SearchInfoExtractor
 
  15 from ..jsinterp 
import JSInterpreter
 
  16 from ..swfinterp 
import SWFInterpreter
 
  17 from ..compat 
import ( 
  21     compat_urllib_parse_unquote
, 
  22     compat_urllib_parse_unquote_plus
, 
  23     compat_urllib_parse_urlencode
, 
  24     compat_urllib_parse_urlparse
, 
  33     get_element_by_attribute
, 
  53 class YoutubeBaseInfoExtractor(InfoExtractor
): 
  54     """Provide base functions for Youtube extractors""" 
  55     _LOGIN_URL 
= 'https://accounts.google.com/ServiceLogin' 
  56     _TWOFACTOR_URL 
= 'https://accounts.google.com/signin/challenge' 
  58     _LOOKUP_URL 
= 'https://accounts.google.com/_/signin/sl/lookup' 
  59     _CHALLENGE_URL 
= 'https://accounts.google.com/_/signin/sl/challenge' 
  60     _TFA_URL 
= 'https://accounts.google.com/_/signin/challenge?hl=en&TL={0}' 
  62     _NETRC_MACHINE 
= 'youtube' 
  63     # If True it will raise an error if no login info is provided 
  64     _LOGIN_REQUIRED 
= False 
  66     _PLAYLIST_ID_RE 
= r
'(?:PL|LL|EC|UU|FL|RD|UL|TL)[0-9A-Za-z-_]{10,}' 
  68     def _set_language(self
): 
  70             '.youtube.com', 'PREF', 'f1=50000000&hl=en', 
  71             # YouTube sets the expire time to about two months 
  72             expire_time
=time
.time() + 2 * 30 * 24 * 3600) 
  74     def _ids_to_results(self
, ids
): 
  76             self
.url_result(vid_id
, 'Youtube', video_id
=vid_id
) 
  81         Attempt to log in to YouTube. 
  82         True is returned if successful or skipped. 
  83         False is returned if login failed. 
  85         If _LOGIN_REQUIRED is set and no authentication was provided, an error is raised. 
  87         (username
, password
) = self
._get
_login
_info
() 
  88         # No authentication to be performed 
  90             if self
._LOGIN
_REQUIRED
: 
  91                 raise ExtractorError('No login info available, needed for using %s.' % self
.IE_NAME
, expected
=True) 
  94         login_page 
= self
._download
_webpage
( 
  95             self
._LOGIN
_URL
, None, 
  96             note
='Downloading login page', 
  97             errnote
='unable to fetch login page', fatal
=False) 
  98         if login_page 
is False: 
 101         login_form 
= self
._hidden
_inputs
(login_page
) 
 103         def req(url
, f_req
, note
, errnote
): 
 104             data 
= login_form
.copy() 
 107                 'checkConnection': 'youtube', 
 108                 'checkedDomains': 'youtube', 
 110                 'deviceinfo': '[null,null,null,[],null,"US",null,null,[],"GlifWebSignIn",null,[null,null,[]]]', 
 111                 'f.req': json
.dumps(f_req
), 
 112                 'flowName': 'GlifWebSignIn', 
 113                 'flowEntry': 'ServiceLogin', 
 115             return self
._download
_json
( 
 116                 url
, None, note
=note
, errnote
=errnote
, 
 117                 transform_source
=lambda s
: re
.sub(r
'^[^[]*', '', s
), 
 119                 data
=urlencode_postdata(data
), headers
={ 
 120                     'Content-Type': 'application/x-www-form-urlencoded;charset=utf-8', 
 121                     'Google-Accounts-XSRF': 1, 
 125             self
._downloader
.report_warning(message
) 
 129             None, [], None, 'US', None, None, 2, False, True, 
 133                  'https://accounts.google.com/ServiceLogin?passive=true&continue=https%3A%2F%2Fwww.youtube.com%2Fsignin%3Fnext%3D%252F%26action_handle_signin%3Dtrue%26hl%3Den%26app%3Ddesktop%26feature%3Dsign_in_button&hl=en&service=youtube&uilel=3&requestPath=%2FServiceLogin&Page=PasswordSeparationSignIn', 
 135                 1, [None, None, []], None, None, None, True 
 140         lookup_results 
= req( 
 141             self
._LOOKUP
_URL
, lookup_req
, 
 142             'Looking up account info', 'Unable to look up account info') 
 144         if lookup_results 
is False: 
 147         user_hash 
= try_get(lookup_results
, lambda x
: x
[0][2], compat_str
) 
 149             warn('Unable to extract user hash') 
 154             None, 1, None, [1, None, None, None, [password
, None, True]], 
 156                 None, None, [2, 1, None, 1, 'https://accounts.google.com/ServiceLogin?passive=true&continue=https%3A%2F%2Fwww.youtube.com%2Fsignin%3Fnext%3D%252F%26action_handle_signin%3Dtrue%26hl%3Den%26app%3Ddesktop%26feature%3Dsign_in_button&hl=en&service=youtube&uilel=3&requestPath=%2FServiceLogin&Page=PasswordSeparationSignIn', None, [], 4], 
 157                 1, [None, None, []], None, None, None, True 
 160         challenge_results 
= req( 
 161             self
._CHALLENGE
_URL
, challenge_req
, 
 162             'Logging in', 'Unable to log in') 
 164         if challenge_results 
is False: 
 167         login_res 
= try_get(challenge_results
, lambda x
: x
[0][5], list) 
 169             login_msg 
= try_get(login_res
, lambda x
: x
[5], compat_str
) 
 171                 'Unable to login: %s' % 'Invalid password' 
 172                 if login_msg 
== 'INCORRECT_ANSWER_ENTERED' else login_msg
) 
 175         res 
= try_get(challenge_results
, lambda x
: x
[0][-1], list) 
 177             warn('Unable to extract result entry') 
 180         tfa 
= try_get(res
, lambda x
: x
[0][0], list) 
 182             tfa_str 
= try_get(tfa
, lambda x
: x
[2], compat_str
) 
 183             if tfa_str 
== 'TWO_STEP_VERIFICATION': 
 184                 # SEND_SUCCESS - TFA code has been successfully sent to phone 
 185                 # QUOTA_EXCEEDED - reached the limit of TFA codes 
 186                 status 
= try_get(tfa
, lambda x
: x
[5], compat_str
) 
 187                 if status 
== 'QUOTA_EXCEEDED': 
 188                     warn('Exceeded the limit of TFA codes, try later') 
 191                 tl 
= try_get(challenge_results
, lambda x
: x
[1][2], compat_str
) 
 193                     warn('Unable to extract TL') 
 196                 tfa_code 
= self
._get
_tfa
_info
('2-step verification code') 
 200                         'Two-factor authentication required. Provide it either interactively or with --twofactor <code>' 
 201                         '(Note that only TOTP (Google Authenticator App) codes work at this time.)') 
 204                 tfa_code 
= remove_start(tfa_code
, 'G-') 
 207                     user_hash
, None, 2, None, 
 209                         9, None, None, None, None, None, None, None, 
 210                         [None, tfa_code
, True, 2] 
 214                     self
._TFA
_URL
.format(tl
), tfa_req
, 
 215                     'Submitting TFA code', 'Unable to submit TFA code') 
 217                 if tfa_results 
is False: 
 220                 tfa_res 
= try_get(tfa_results
, lambda x
: x
[0][5], list) 
 222                     tfa_msg 
= try_get(tfa_res
, lambda x
: x
[5], compat_str
) 
 224                         'Unable to finish TFA: %s' % 'Invalid TFA code' 
 225                         if tfa_msg 
== 'INCORRECT_ANSWER_ENTERED' else tfa_msg
) 
 228                 check_cookie_url 
= try_get( 
 229                     tfa_results
, lambda x
: x
[0][-1][2], compat_str
) 
 231             check_cookie_url 
= try_get(res
, lambda x
: x
[2], compat_str
) 
 233         if not check_cookie_url
: 
 234             warn('Unable to extract CheckCookie URL') 
 237         check_cookie_results 
= self
._download
_webpage
( 
 238             check_cookie_url
, None, 'Checking cookie', fatal
=False) 
 240         if check_cookie_results 
is False: 
 243         if 'https://myaccount.google.com/' not in check_cookie_results
: 
 244             warn('Unable to log in') 
 249     def _download_webpage(self
, *args
, **kwargs
): 
 250         kwargs
.setdefault('query', {})['disable_polymer'] = 'true' 
 251         return super(YoutubeBaseInfoExtractor
, self
)._download
_webpage
( 
 252             *args
, **compat_kwargs(kwargs
)) 
 254     def _real_initialize(self
): 
 255         if self
._downloader 
is None: 
 258         if not self
._login
(): 
 262 class YoutubeEntryListBaseInfoExtractor(YoutubeBaseInfoExtractor
): 
 263     # Extract entries from page with "Load more" button 
 264     def _entries(self
, page
, playlist_id
): 
 265         more_widget_html 
= content_html 
= page
 
 266         for page_num 
in itertools
.count(1): 
 267             for entry 
in self
._process
_page
(content_html
): 
 270             mobj 
= re
.search(r
'data-uix-load-more-href="/?(?P<more>[^"]+)"', more_widget_html
) 
 274             more 
= self
._download
_json
( 
 275                 'https://youtube.com/%s' % mobj
.group('more'), playlist_id
, 
 276                 'Downloading page #%s' % page_num
, 
 277                 transform_source
=uppercase_escape
) 
 278             content_html 
= more
['content_html'] 
 279             if not content_html
.strip(): 
 280                 # Some webpages show a "Load more" button but they don't 
 283             more_widget_html 
= more
['load_more_widget_html'] 
 286 class YoutubePlaylistBaseInfoExtractor(YoutubeEntryListBaseInfoExtractor
): 
 287     def _process_page(self
, content
): 
 288         for video_id
, video_title 
in self
.extract_videos_from_page(content
): 
 289             yield self
.url_result(video_id
, 'Youtube', video_id
, video_title
) 
 291     def extract_videos_from_page(self
, page
): 
 294         for mobj 
in re
.finditer(self
._VIDEO
_RE
, page
): 
 295             # The link with index 0 is not the first video of the playlist (not sure if still actual) 
 296             if 'index' in mobj
.groupdict() and mobj
.group('id') == '0': 
 298             video_id 
= mobj
.group('id') 
 299             video_title 
= unescapeHTML(mobj
.group('title')) 
 301                 video_title 
= video_title
.strip() 
 303                 idx 
= ids_in_page
.index(video_id
) 
 304                 if video_title 
and not titles_in_page
[idx
]: 
 305                     titles_in_page
[idx
] = video_title
 
 307                 ids_in_page
.append(video_id
) 
 308                 titles_in_page
.append(video_title
) 
 309         return zip(ids_in_page
, titles_in_page
) 
 312 class YoutubePlaylistsBaseInfoExtractor(YoutubeEntryListBaseInfoExtractor
): 
 313     def _process_page(self
, content
): 
 314         for playlist_id 
in orderedSet(re
.findall( 
 315                 r
'<h3[^>]+class="[^"]*yt-lockup-title[^"]*"[^>]*><a[^>]+href="/?playlist\?list=([0-9A-Za-z-_]{10,})"', 
 317             yield self
.url_result( 
 318                 'https://www.youtube.com/playlist?list=%s' % playlist_id
, 'YoutubePlaylist') 
 320     def _real_extract(self
, url
): 
 321         playlist_id 
= self
._match
_id
(url
) 
 322         webpage 
= self
._download
_webpage
(url
, playlist_id
) 
 323         title 
= self
._og
_search
_title
(webpage
, fatal
=False) 
 324         return self
.playlist_result(self
._entries
(webpage
, playlist_id
), playlist_id
, title
) 
 327 class YoutubeIE(YoutubeBaseInfoExtractor
): 
 328     IE_DESC 
= 'YouTube.com' 
 329     _VALID_URL 
= r
"""(?x)^ 
 331                          (?:https?://|//)                                    # http(s):// or protocol-independent URL 
 332                          (?:(?:(?:(?:\w+\.)?[yY][oO][uU][tT][uU][bB][eE](?:-nocookie)?\.com/| 
 333                             (?:www\.)?deturl\.com/www\.youtube\.com/| 
 334                             (?:www\.)?pwnyoutube\.com/| 
 335                             (?:www\.)?hooktube\.com/| 
 336                             (?:www\.)?yourepeat\.com/| 
 337                             tube\.majestyc\.net/| 
 338                             youtube\.googleapis\.com/)                        # the various hostnames, with wildcard subdomains 
 339                          (?:.*?\#/)?                                          # handle anchor (#/) redirect urls 
 340                          (?:                                                  # the various things that can precede the ID: 
 341                              (?:(?:v|embed|e)/(?!videoseries))                # v/ or embed/ or e/ 
 342                              |(?:                                             # or the v= param in all its forms 
 343                                  (?:(?:watch|movie)(?:_popup)?(?:\.php)?/?)?  # preceding watch(_popup|.php) or nothing (like /?v=xxxx) 
 344                                  (?:\?|\#!?)                                  # the params delimiter ? or # or #! 
 345                                  (?:.*?[&;])??                                # any other preceding param (like /?s=tuff&v=xxxx or ?s=tuff&v=V36LpHqtcDY) 
 350                             youtu\.be|                                        # just youtu.be/xxxx 
 351                             vid\.plus|                                        # or vid.plus/xxxx 
 352                             zwearz\.com/watch|                                # or zwearz.com/watch/xxxx 
 354                          |(?:www\.)?cleanvideosearch\.com/media/action/yt/watch\?videoId= 
 356                      )?                                                       # all until now is optional -> you can pass the naked ID 
 357                      ([0-9A-Za-z_-]{11})                                      # here is it! the YouTube video ID 
 360                             %(playlist_id)s|                                  # combined list/video URLs are handled by the playlist IE 
 361                             WL                                                # WL are handled by the watch later IE 
 364                      (?(1).+)?                                                # if we found the ID, everything can follow 
 365                      $""" % {'playlist_id': YoutubeBaseInfoExtractor
._PLAYLIST
_ID
_RE
} 
 366     _NEXT_URL_RE 
= r
'[\?&]next_url=([^&]+)' 
 368         '5': {'ext': 'flv', 'width': 400, 'height': 240, 'acodec': 'mp3', 'abr': 64, 'vcodec': 'h263'}, 
 369         '6': {'ext': 'flv', 'width': 450, 'height': 270, 'acodec': 'mp3', 'abr': 64, 'vcodec': 'h263'}, 
 370         '13': {'ext': '3gp', 'acodec': 'aac', 'vcodec': 'mp4v'}, 
 371         '17': {'ext': '3gp', 'width': 176, 'height': 144, 'acodec': 'aac', 'abr': 24, 'vcodec': 'mp4v'}, 
 372         '18': {'ext': 'mp4', 'width': 640, 'height': 360, 'acodec': 'aac', 'abr': 96, 'vcodec': 'h264'}, 
 373         '22': {'ext': 'mp4', 'width': 1280, 'height': 720, 'acodec': 'aac', 'abr': 192, 'vcodec': 'h264'}, 
 374         '34': {'ext': 'flv', 'width': 640, 'height': 360, 'acodec': 'aac', 'abr': 128, 'vcodec': 'h264'}, 
 375         '35': {'ext': 'flv', 'width': 854, 'height': 480, 'acodec': 'aac', 'abr': 128, 'vcodec': 'h264'}, 
 376         # itag 36 videos are either 320x180 (BaW_jenozKc) or 320x240 (__2ABJjxzNo), abr varies as well 
 377         '36': {'ext': '3gp', 'width': 320, 'acodec': 'aac', 'vcodec': 'mp4v'}, 
 378         '37': {'ext': 'mp4', 'width': 1920, 'height': 1080, 'acodec': 'aac', 'abr': 192, 'vcodec': 'h264'}, 
 379         '38': {'ext': 'mp4', 'width': 4096, 'height': 3072, 'acodec': 'aac', 'abr': 192, 'vcodec': 'h264'}, 
 380         '43': {'ext': 'webm', 'width': 640, 'height': 360, 'acodec': 'vorbis', 'abr': 128, 'vcodec': 'vp8'}, 
 381         '44': {'ext': 'webm', 'width': 854, 'height': 480, 'acodec': 'vorbis', 'abr': 128, 'vcodec': 'vp8'}, 
 382         '45': {'ext': 'webm', 'width': 1280, 'height': 720, 'acodec': 'vorbis', 'abr': 192, 'vcodec': 'vp8'}, 
 383         '46': {'ext': 'webm', 'width': 1920, 'height': 1080, 'acodec': 'vorbis', 'abr': 192, 'vcodec': 'vp8'}, 
 384         '59': {'ext': 'mp4', 'width': 854, 'height': 480, 'acodec': 'aac', 'abr': 128, 'vcodec': 'h264'}, 
 385         '78': {'ext': 'mp4', 'width': 854, 'height': 480, 'acodec': 'aac', 'abr': 128, 'vcodec': 'h264'}, 
 389         '82': {'ext': 'mp4', 'height': 360, 'format_note': '3D', 'acodec': 'aac', 'abr': 128, 'vcodec': 'h264', 'preference': -20}, 
 390         '83': {'ext': 'mp4', 'height': 480, 'format_note': '3D', 'acodec': 'aac', 'abr': 128, 'vcodec': 'h264', 'preference': -20}, 
 391         '84': {'ext': 'mp4', 'height': 720, 'format_note': '3D', 'acodec': 'aac', 'abr': 192, 'vcodec': 'h264', 'preference': -20}, 
 392         '85': {'ext': 'mp4', 'height': 1080, 'format_note': '3D', 'acodec': 'aac', 'abr': 192, 'vcodec': 'h264', 'preference': -20}, 
 393         '100': {'ext': 'webm', 'height': 360, 'format_note': '3D', 'acodec': 'vorbis', 'abr': 128, 'vcodec': 'vp8', 'preference': -20}, 
 394         '101': {'ext': 'webm', 'height': 480, 'format_note': '3D', 'acodec': 'vorbis', 'abr': 192, 'vcodec': 'vp8', 'preference': -20}, 
 395         '102': {'ext': 'webm', 'height': 720, 'format_note': '3D', 'acodec': 'vorbis', 'abr': 192, 'vcodec': 'vp8', 'preference': -20}, 
 397         # Apple HTTP Live Streaming 
 398         '91': {'ext': 'mp4', 'height': 144, 'format_note': 'HLS', 'acodec': 'aac', 'abr': 48, 'vcodec': 'h264', 'preference': -10}, 
 399         '92': {'ext': 'mp4', 'height': 240, 'format_note': 'HLS', 'acodec': 'aac', 'abr': 48, 'vcodec': 'h264', 'preference': -10}, 
 400         '93': {'ext': 'mp4', 'height': 360, 'format_note': 'HLS', 'acodec': 'aac', 'abr': 128, 'vcodec': 'h264', 'preference': -10}, 
 401         '94': {'ext': 'mp4', 'height': 480, 'format_note': 'HLS', 'acodec': 'aac', 'abr': 128, 'vcodec': 'h264', 'preference': -10}, 
 402         '95': {'ext': 'mp4', 'height': 720, 'format_note': 'HLS', 'acodec': 'aac', 'abr': 256, 'vcodec': 'h264', 'preference': -10}, 
 403         '96': {'ext': 'mp4', 'height': 1080, 'format_note': 'HLS', 'acodec': 'aac', 'abr': 256, 'vcodec': 'h264', 'preference': -10}, 
 404         '132': {'ext': 'mp4', 'height': 240, 'format_note': 'HLS', 'acodec': 'aac', 'abr': 48, 'vcodec': 'h264', 'preference': -10}, 
 405         '151': {'ext': 'mp4', 'height': 72, 'format_note': 'HLS', 'acodec': 'aac', 'abr': 24, 'vcodec': 'h264', 'preference': -10}, 
 408         '133': {'ext': 'mp4', 'height': 240, 'format_note': 'DASH video', 'vcodec': 'h264'}, 
 409         '134': {'ext': 'mp4', 'height': 360, 'format_note': 'DASH video', 'vcodec': 'h264'}, 
 410         '135': {'ext': 'mp4', 'height': 480, 'format_note': 'DASH video', 'vcodec': 'h264'}, 
 411         '136': {'ext': 'mp4', 'height': 720, 'format_note': 'DASH video', 'vcodec': 'h264'}, 
 412         '137': {'ext': 'mp4', 'height': 1080, 'format_note': 'DASH video', 'vcodec': 'h264'}, 
 413         '138': {'ext': 'mp4', 'format_note': 'DASH video', 'vcodec': 'h264'},  # Height can vary (https://github.com/rg3/youtube-dl/issues/4559) 
 414         '160': {'ext': 'mp4', 'height': 144, 'format_note': 'DASH video', 'vcodec': 'h264'}, 
 415         '212': {'ext': 'mp4', 'height': 480, 'format_note': 'DASH video', 'vcodec': 'h264'}, 
 416         '264': {'ext': 'mp4', 'height': 1440, 'format_note': 'DASH video', 'vcodec': 'h264'}, 
 417         '298': {'ext': 'mp4', 'height': 720, 'format_note': 'DASH video', 'vcodec': 'h264', 'fps': 60}, 
 418         '299': {'ext': 'mp4', 'height': 1080, 'format_note': 'DASH video', 'vcodec': 'h264', 'fps': 60}, 
 419         '266': {'ext': 'mp4', 'height': 2160, 'format_note': 'DASH video', 'vcodec': 'h264'}, 
 422         '139': {'ext': 'm4a', 'format_note': 'DASH audio', 'acodec': 'aac', 'abr': 48, 'container': 'm4a_dash'}, 
 423         '140': {'ext': 'm4a', 'format_note': 'DASH audio', 'acodec': 'aac', 'abr': 128, 'container': 'm4a_dash'}, 
 424         '141': {'ext': 'm4a', 'format_note': 'DASH audio', 'acodec': 'aac', 'abr': 256, 'container': 'm4a_dash'}, 
 425         '256': {'ext': 'm4a', 'format_note': 'DASH audio', 'acodec': 'aac', 'container': 'm4a_dash'}, 
 426         '258': {'ext': 'm4a', 'format_note': 'DASH audio', 'acodec': 'aac', 'container': 'm4a_dash'}, 
 427         '325': {'ext': 'm4a', 'format_note': 'DASH audio', 'acodec': 'dtse', 'container': 'm4a_dash'}, 
 428         '328': {'ext': 'm4a', 'format_note': 'DASH audio', 'acodec': 'ec-3', 'container': 'm4a_dash'}, 
 431         '167': {'ext': 'webm', 'height': 360, 'width': 640, 'format_note': 'DASH video', 'container': 'webm', 'vcodec': 'vp8'}, 
 432         '168': {'ext': 'webm', 'height': 480, 'width': 854, 'format_note': 'DASH video', 'container': 'webm', 'vcodec': 'vp8'}, 
 433         '169': {'ext': 'webm', 'height': 720, 'width': 1280, 'format_note': 'DASH video', 'container': 'webm', 'vcodec': 'vp8'}, 
 434         '170': {'ext': 'webm', 'height': 1080, 'width': 1920, 'format_note': 'DASH video', 'container': 'webm', 'vcodec': 'vp8'}, 
 435         '218': {'ext': 'webm', 'height': 480, 'width': 854, 'format_note': 'DASH video', 'container': 'webm', 'vcodec': 'vp8'}, 
 436         '219': {'ext': 'webm', 'height': 480, 'width': 854, 'format_note': 'DASH video', 'container': 'webm', 'vcodec': 'vp8'}, 
 437         '278': {'ext': 'webm', 'height': 144, 'format_note': 'DASH video', 'container': 'webm', 'vcodec': 'vp9'}, 
 438         '242': {'ext': 'webm', 'height': 240, 'format_note': 'DASH video', 'vcodec': 'vp9'}, 
 439         '243': {'ext': 'webm', 'height': 360, 'format_note': 'DASH video', 'vcodec': 'vp9'}, 
 440         '244': {'ext': 'webm', 'height': 480, 'format_note': 'DASH video', 'vcodec': 'vp9'}, 
 441         '245': {'ext': 'webm', 'height': 480, 'format_note': 'DASH video', 'vcodec': 'vp9'}, 
 442         '246': {'ext': 'webm', 'height': 480, 'format_note': 'DASH video', 'vcodec': 'vp9'}, 
 443         '247': {'ext': 'webm', 'height': 720, 'format_note': 'DASH video', 'vcodec': 'vp9'}, 
 444         '248': {'ext': 'webm', 'height': 1080, 'format_note': 'DASH video', 'vcodec': 'vp9'}, 
 445         '271': {'ext': 'webm', 'height': 1440, 'format_note': 'DASH video', 'vcodec': 'vp9'}, 
 446         # itag 272 videos are either 3840x2160 (e.g. RtoitU2A-3E) or 7680x4320 (sLprVF6d7Ug) 
 447         '272': {'ext': 'webm', 'height': 2160, 'format_note': 'DASH video', 'vcodec': 'vp9'}, 
 448         '302': {'ext': 'webm', 'height': 720, 'format_note': 'DASH video', 'vcodec': 'vp9', 'fps': 60}, 
 449         '303': {'ext': 'webm', 'height': 1080, 'format_note': 'DASH video', 'vcodec': 'vp9', 'fps': 60}, 
 450         '308': {'ext': 'webm', 'height': 1440, 'format_note': 'DASH video', 'vcodec': 'vp9', 'fps': 60}, 
 451         '313': {'ext': 'webm', 'height': 2160, 'format_note': 'DASH video', 'vcodec': 'vp9'}, 
 452         '315': {'ext': 'webm', 'height': 2160, 'format_note': 'DASH video', 'vcodec': 'vp9', 'fps': 60}, 
 455         '171': {'ext': 'webm', 'acodec': 'vorbis', 'format_note': 'DASH audio', 'abr': 128}, 
 456         '172': {'ext': 'webm', 'acodec': 'vorbis', 'format_note': 'DASH audio', 'abr': 256}, 
 458         # Dash webm audio with opus inside 
 459         '249': {'ext': 'webm', 'format_note': 'DASH audio', 'acodec': 'opus', 'abr': 50}, 
 460         '250': {'ext': 'webm', 'format_note': 'DASH audio', 'acodec': 'opus', 'abr': 70}, 
 461         '251': {'ext': 'webm', 'format_note': 'DASH audio', 'acodec': 'opus', 'abr': 160}, 
 464         '_rtmp': {'protocol': 'rtmp'}, 
 466     _SUBTITLE_FORMATS 
= ('ttml', 'vtt') 
 473             'url': 'https://www.youtube.com/watch?v=BaW_jenozKc&t=1s&end=9', 
 477                 'title': 'youtube-dl test video "\'/\\Ƥāš', 
 478                 'uploader': 'Philipp Hagemeister', 
 479                 'uploader_id': 'phihag', 
 480                 'uploader_url': r
're:https?://(?:www\.)?youtube\.com/user/phihag', 
 481                 'upload_date': '20121002', 
 482                 'license': 'Standard YouTube License', 
 483                 'description': 'test chars:  "\'/\\Ƥāš\ntest URL: https://github.com/rg3/youtube-dl/issues/1892\n\nThis is a test video for youtube-dl.\n\nFor more information, contact phihag@phihag.de .', 
 484                 'categories': ['Science & Technology'], 
 485                 'tags': ['youtube-dl'], 
 488                 'dislike_count': int, 
 494             'url': 'https://www.youtube.com/watch?v=UxxajLWwzqY', 
 495             'note': 'Test generic use_cipher_signature video (#897)', 
 499                 'upload_date': '20120506', 
 500                 'title': 'Icona Pop - I Love It (feat. Charli XCX) [OFFICIAL VIDEO]', 
 501                 'alt_title': 'I Love It (feat. Charli XCX)', 
 502                 'description': 'md5:f3ceb5ef83a08d95b9d146f973157cc8', 
 503                 'tags': ['Icona Pop i love it', 'sweden', 'pop music', 'big beat records', 'big beat', 'charli', 
 504                          'xcx', 'charli xcx', 'girls', 'hbo', 'i love it', "i don't care", 'icona', 'pop', 
 505                          'iconic ep', 'iconic', 'love', 'it'], 
 507                 'uploader': 'Icona Pop', 
 508                 'uploader_id': 'IconaPop', 
 509                 'uploader_url': r
're:https?://(?:www\.)?youtube\.com/user/IconaPop', 
 510                 'license': 'Standard YouTube License', 
 511                 'creator': 'Icona Pop', 
 515             'url': 'https://www.youtube.com/watch?v=07FYdnEawAQ', 
 516             'note': 'Test VEVO video with age protection (#956)', 
 520                 'upload_date': '20130703', 
 521                 'title': 'Justin Timberlake - Tunnel Vision (Explicit)', 
 522                 'alt_title': 'Tunnel Vision', 
 523                 'description': 'md5:64249768eec3bc4276236606ea996373', 
 525                 'uploader': 'justintimberlakeVEVO', 
 526                 'uploader_id': 'justintimberlakeVEVO', 
 527                 'uploader_url': r
're:https?://(?:www\.)?youtube\.com/user/justintimberlakeVEVO', 
 528                 'license': 'Standard YouTube License', 
 529                 'creator': 'Justin Timberlake', 
 534             'url': '//www.YouTube.com/watch?v=yZIXLfi8CZQ', 
 535             'note': 'Embed-only video (#1746)', 
 539                 'upload_date': '20120608', 
 540                 'title': 'Principal Sexually Assaults A Teacher - Episode 117 - 8th June 2012', 
 541                 'description': 'md5:09b78bd971f1e3e289601dfba15ca4f7', 
 542                 'uploader': 'SET India', 
 543                 'uploader_id': 'setindia', 
 544                 'uploader_url': r
're:https?://(?:www\.)?youtube\.com/user/setindia', 
 545                 'license': 'Standard YouTube License', 
 550             'url': 'https://www.youtube.com/watch?v=BaW_jenozKc&v=UxxajLWwzqY', 
 551             'note': 'Use the first video ID in the URL', 
 555                 'title': 'youtube-dl test video "\'/\\Ƥāš', 
 556                 'uploader': 'Philipp Hagemeister', 
 557                 'uploader_id': 'phihag', 
 558                 'uploader_url': r
're:https?://(?:www\.)?youtube\.com/user/phihag', 
 559                 'upload_date': '20121002', 
 560                 'license': 'Standard YouTube License', 
 561                 'description': 'test chars:  "\'/\\Ƥāš\ntest URL: https://github.com/rg3/youtube-dl/issues/1892\n\nThis is a test video for youtube-dl.\n\nFor more information, contact phihag@phihag.de .', 
 562                 'categories': ['Science & Technology'], 
 563                 'tags': ['youtube-dl'], 
 566                 'dislike_count': int, 
 569                 'skip_download': True, 
 573             'url': 'https://www.youtube.com/watch?v=a9LDPn-MO4I', 
 574             'note': '256k DASH audio (format 141) via DASH manifest', 
 578                 'upload_date': '20121002', 
 579                 'uploader_id': '8KVIDEO', 
 580                 'uploader_url': r
're:https?://(?:www\.)?youtube\.com/user/8KVIDEO', 
 582                 'uploader': '8KVIDEO', 
 583                 'license': 'Standard YouTube License', 
 584                 'title': 'UHDTV TEST 8K VIDEO.mp4' 
 587                 'youtube_include_dash_manifest': True, 
 590             'skip': 'format 141 not served anymore', 
 592         # DASH manifest with encrypted signature 
 594             'url': 'https://www.youtube.com/watch?v=IB3lcPjvWLA', 
 598                 'title': 'Afrojack, Spree Wilson - The Spark ft. Spree Wilson', 
 599                 'description': 'md5:12e7067fa6735a77bdcbb58cb1187d2d', 
 601                 'uploader': 'AfrojackVEVO', 
 602                 'uploader_id': 'AfrojackVEVO', 
 603                 'upload_date': '20131011', 
 604                 'license': 'Standard YouTube License', 
 607                 'youtube_include_dash_manifest': True, 
 608                 'format': '141/bestaudio[ext=m4a]', 
 611         # JS player signature function name containing $ 
 613             'url': 'https://www.youtube.com/watch?v=nfWlot6h_JM', 
 617                 'title': 'Taylor Swift - Shake It Off', 
 618                 'alt_title': 'Shake It Off', 
 619                 'description': 'md5:95f66187cd7c8b2c13eb78e1223b63c3', 
 621                 'uploader': 'TaylorSwiftVEVO', 
 622                 'uploader_id': 'TaylorSwiftVEVO', 
 623                 'upload_date': '20140818', 
 624                 'license': 'Standard YouTube License', 
 625                 'creator': 'Taylor Swift', 
 628                 'youtube_include_dash_manifest': True, 
 629                 'format': '141/bestaudio[ext=m4a]', 
 634             'url': 'https://www.youtube.com/watch?v=T4XJQO3qol8', 
 639                 'upload_date': '20100909', 
 640                 'uploader': 'The Amazing Atheist', 
 641                 'uploader_id': 'TheAmazingAtheist', 
 642                 'uploader_url': r
're:https?://(?:www\.)?youtube\.com/user/TheAmazingAtheist', 
 643                 'license': 'Standard YouTube License', 
 644                 'title': 'Burning Everyone\'s Koran', 
 645                 'description': 'SUBSCRIBE: http://www.youtube.com/saturninefilms\n\nEven Obama has taken a stand against freedom on this issue: http://www.huffingtonpost.com/2010/09/09/obama-gma-interview-quran_n_710282.html', 
 648         # Normal age-gate video (No vevo, embed allowed) 
 650             'url': 'https://youtube.com/watch?v=HtVdAasjOgU', 
 654                 'title': 'The Witcher 3: Wild Hunt - The Sword Of Destiny Trailer', 
 655                 'description': r
're:(?s).{100,}About the Game\n.*?The Witcher 3: Wild Hunt.{100,}', 
 657                 'uploader': 'The Witcher', 
 658                 'uploader_id': 'WitcherGame', 
 659                 'uploader_url': r
're:https?://(?:www\.)?youtube\.com/user/WitcherGame', 
 660                 'upload_date': '20140605', 
 661                 'license': 'Standard YouTube License', 
 665         # Age-gate video with encrypted signature 
 667             'url': 'https://www.youtube.com/watch?v=6kLq3WMV1nU', 
 671                 'title': 'Dedication To My Ex (Miss That) (Lyric Video)', 
 672                 'description': 'md5:33765bb339e1b47e7e72b5490139bb41', 
 674                 'uploader': 'LloydVEVO', 
 675                 'uploader_id': 'LloydVEVO', 
 676                 'uploader_url': r
're:https?://(?:www\.)?youtube\.com/user/LloydVEVO', 
 677                 'upload_date': '20110629', 
 678                 'license': 'Standard YouTube License', 
 682         # video_info is None (https://github.com/rg3/youtube-dl/issues/4421) 
 683         # YouTube Red ad is not captured for creator 
 685             'url': '__2ABJjxzNo', 
 690                 'upload_date': '20100430', 
 691                 'uploader_id': 'deadmau5', 
 692                 'uploader_url': r
're:https?://(?:www\.)?youtube\.com/user/deadmau5', 
 693                 'creator': 'deadmau5', 
 694                 'description': 'md5:12c56784b8032162bb936a5f76d55360', 
 695                 'uploader': 'deadmau5', 
 696                 'license': 'Standard YouTube License', 
 697                 'title': 'Deadmau5 - Some Chords (HD)', 
 698                 'alt_title': 'Some Chords', 
 700             'expected_warnings': [ 
 701                 'DASH manifest missing', 
 704         # Olympics (https://github.com/rg3/youtube-dl/issues/4431) 
 706             'url': 'lqQg6PlCWgI', 
 711                 'upload_date': '20150827', 
 712                 'uploader_id': 'olympic', 
 713                 'uploader_url': r
're:https?://(?:www\.)?youtube\.com/user/olympic', 
 714                 'license': 'Standard YouTube License', 
 715                 'description': 'HO09  - Women -  GER-AUS - Hockey - 31 July 2012 - London 2012 Olympic Games', 
 716                 'uploader': 'Olympic', 
 717                 'title': 'Hockey - Women -  GER-AUS - London 2012 Olympic Games', 
 720                 'skip_download': 'requires avconv', 
 725             'url': 'https://www.youtube.com/watch?v=_b-2C3KPAM0', 
 729                 'stretched_ratio': 16 / 9., 
 731                 'upload_date': '20110310', 
 732                 'uploader_id': 'AllenMeow', 
 733                 'uploader_url': r
're:https?://(?:www\.)?youtube\.com/user/AllenMeow', 
 734                 'description': 'made by Wacom from Korea | åå¹&å ę²¹ę·»é by TY\'s Allen | ęč¬heylisa00cavey1001ååøē±ę
ęä¾ę¢åēæ»čÆ', 
 735                 'uploader': 'å«č¾å«', 
 736                 'license': 'Standard YouTube License', 
 737                 'title': '[A-made] č®ę
å¦åå¹ē å¤Ŗå¦ ęå°±ęÆé樣ēäŗŗ', 
 740         # url_encoded_fmt_stream_map is empty string 
 742             'url': 'qEJwOuvDf7I', 
 746                 'title': 'ŠŠ±ŃŃŠ¶Š“ение ŃŃŠ“ебной ŠæŃŠ°ŠŗŃŠøŠŗŠø по Š²ŃбоŃам 14 ŃŠµŠ½ŃŃŠ±ŃŃ 2014 гоГа в ДанкŃ-ŠŠµŃŠµŃŠ±ŃŃŠ³Šµ', 
 748                 'upload_date': '20150404', 
 749                 'uploader_id': 'spbelect', 
 750                 'uploader': 'ŠŠ°Š±Š»ŃŠ“Š°ŃŠµŠ»Šø ŠŠµŃŠµŃŠ±ŃŃŠ³Š°', 
 753                 'skip_download': 'requires avconv', 
 755             'skip': 'This live event has ended.', 
 757         # Extraction from multiple DASH manifests (https://github.com/rg3/youtube-dl/pull/6097) 
 759             'url': 'https://www.youtube.com/watch?v=FIl7x6_3R5Y', 
 763                 'title': 'md5:7b81415841e02ecd4313668cde88737a', 
 764                 'description': 'md5:116377fd2963b81ec4ce64b542173306', 
 766                 'upload_date': '20150625', 
 767                 'uploader_id': 'dorappi2000', 
 768                 'uploader_url': r
're:https?://(?:www\.)?youtube\.com/user/dorappi2000', 
 769                 'uploader': 'dorappi2000', 
 770                 'license': 'Standard YouTube License', 
 771                 'formats': 'mincount:32', 
 774         # DASH manifest with segment_list 
 776             'url': 'https://www.youtube.com/embed/CsmdDsKjzN8', 
 777             'md5': '8ce563a1d667b599d21064e982ab9e31', 
 781                 'upload_date': '20150501',  # According to '<meta itemprop="datePublished"', but in other places it's 20150510 
 782                 'uploader': 'Airtek', 
 783                 'description': 'Retransmisión en directo de la XVIII media maratón de Zaragoza.', 
 784                 'uploader_id': 'UCzTzUmjXxxacNnL8I3m4LnQ', 
 785                 'license': 'Standard YouTube License', 
 786                 'title': 'Retransmisión XVIII Media maratón Zaragoza 2015', 
 789                 'youtube_include_dash_manifest': True, 
 790                 'format': '135',  # bestvideo 
 792             'skip': 'This live event has ended.', 
 795             # Multifeed videos (multiple cameras), URL is for Main Camera 
 796             'url': 'https://www.youtube.com/watch?v=jqWvoWXjCVs', 
 799                 'title': 'teamPGP: Rocket League Noob Stream', 
 800                 'description': 'md5:dc7872fb300e143831327f1bae3af010', 
 806                     'title': 'teamPGP: Rocket League Noob Stream (Main Camera)', 
 807                     'description': 'md5:dc7872fb300e143831327f1bae3af010', 
 809                     'upload_date': '20150721', 
 810                     'uploader': 'Beer Games Beer', 
 811                     'uploader_id': 'beergamesbeer', 
 812                     'uploader_url': r
're:https?://(?:www\.)?youtube\.com/user/beergamesbeer', 
 813                     'license': 'Standard YouTube License', 
 819                     'title': 'teamPGP: Rocket League Noob Stream (kreestuh)', 
 820                     'description': 'md5:dc7872fb300e143831327f1bae3af010', 
 822                     'upload_date': '20150721', 
 823                     'uploader': 'Beer Games Beer', 
 824                     'uploader_id': 'beergamesbeer', 
 825                     'uploader_url': r
're:https?://(?:www\.)?youtube\.com/user/beergamesbeer', 
 826                     'license': 'Standard YouTube License', 
 832                     'title': 'teamPGP: Rocket League Noob Stream (grizzle)', 
 833                     'description': 'md5:dc7872fb300e143831327f1bae3af010', 
 835                     'upload_date': '20150721', 
 836                     'uploader': 'Beer Games Beer', 
 837                     'uploader_id': 'beergamesbeer', 
 838                     'uploader_url': r
're:https?://(?:www\.)?youtube\.com/user/beergamesbeer', 
 839                     'license': 'Standard YouTube License', 
 845                     'title': 'teamPGP: Rocket League Noob Stream (zim)', 
 846                     'description': 'md5:dc7872fb300e143831327f1bae3af010', 
 848                     'upload_date': '20150721', 
 849                     'uploader': 'Beer Games Beer', 
 850                     'uploader_id': 'beergamesbeer', 
 851                     'uploader_url': r
're:https?://(?:www\.)?youtube\.com/user/beergamesbeer', 
 852                     'license': 'Standard YouTube License', 
 856                 'skip_download': True, 
 860             # Multifeed video with comma in title (see https://github.com/rg3/youtube-dl/issues/8536) 
 861             'url': 'https://www.youtube.com/watch?v=gVfLd0zydlo', 
 864                 'title': 'DevConf.cz 2016 Day 2 Workshops 1 14:00 - 15:30', 
 867             'skip': 'Not multifeed anymore', 
 870             'url': 'https://vid.plus/FlRa-iH7PGw', 
 871             'only_matching': True, 
 874             'url': 'https://zwearz.com/watch/9lWxNJF-ufM/electra-woman-dyna-girl-official-trailer-grace-helbig.html', 
 875             'only_matching': True, 
 878             # Title with JS-like syntax "};" (see https://github.com/rg3/youtube-dl/issues/7468) 
 879             # Also tests cut-off URL expansion in video description (see 
 880             # https://github.com/rg3/youtube-dl/issues/1892, 
 881             # https://github.com/rg3/youtube-dl/issues/8164) 
 882             'url': 'https://www.youtube.com/watch?v=lsguqyKfVQg', 
 886                 'title': '{dark walk}; Loki/AC/Dishonored; collab w/Elflover21', 
 887                 'alt_title': 'Dark Walk', 
 888                 'description': 'md5:8085699c11dc3f597ce0410b0dcbb34a', 
 890                 'upload_date': '20151119', 
 891                 'uploader_id': 'IronSoulElf', 
 892                 'uploader_url': r
're:https?://(?:www\.)?youtube\.com/user/IronSoulElf', 
 893                 'uploader': 'IronSoulElf', 
 894                 'license': 'Standard YouTube License', 
 895                 'creator': 'Todd Haberman, Daniel Law Heath & Aaron Kaplan', 
 898                 'skip_download': True, 
 902             # Tags with '};' (see https://github.com/rg3/youtube-dl/issues/7468) 
 903             'url': 'https://www.youtube.com/watch?v=Ms7iBXnlUO8', 
 904             'only_matching': True, 
 907             # Video with yt:stretch=17:0 
 908             'url': 'https://www.youtube.com/watch?v=Q39EVAstoRM', 
 912                 'title': 'Clash Of Clans#14 Dicas De Ataque Para CV 4', 
 913                 'description': 'md5:ee18a25c350637c8faff806845bddee9', 
 914                 'upload_date': '20151107', 
 915                 'uploader_id': 'UCCr7TALkRbo3EtFzETQF1LA', 
 916                 'uploader': 'CH GAMER DROID', 
 919                 'skip_download': True, 
 921             'skip': 'This video does not exist.', 
 924             # Video licensed under Creative Commons 
 925             'url': 'https://www.youtube.com/watch?v=M4gD1WSo5mA', 
 929                 'title': 'md5:e41008789470fc2533a3252216f1c1d1', 
 930                 'description': 'md5:a677553cf0840649b731a3024aeff4cc', 
 932                 'upload_date': '20150127', 
 933                 'uploader_id': 'BerkmanCenter', 
 934                 'uploader_url': r
're:https?://(?:www\.)?youtube\.com/user/BerkmanCenter', 
 935                 'uploader': 'The Berkman Klein Center for Internet & Society', 
 936                 'license': 'Creative Commons Attribution license (reuse allowed)', 
 939                 'skip_download': True, 
 943             # Channel-like uploader_url 
 944             'url': 'https://www.youtube.com/watch?v=eQcmzGIKrzg', 
 948                 'title': 'Democratic Socialism and Foreign Policy | Bernie Sanders', 
 949                 'description': 'md5:dda0d780d5a6e120758d1711d062a867', 
 951                 'upload_date': '20151119', 
 952                 'uploader': 'Bernie 2016', 
 953                 'uploader_id': 'UCH1dpzjCEiGAt8CXkryhkZg', 
 954                 'uploader_url': r
're:https?://(?:www\.)?youtube\.com/channel/UCH1dpzjCEiGAt8CXkryhkZg', 
 955                 'license': 'Creative Commons Attribution license (reuse allowed)', 
 958                 'skip_download': True, 
 962             'url': 'https://www.youtube.com/watch?feature=player_embedded&amp;v=V36LpHqtcDY', 
 963             'only_matching': True, 
 966             # YouTube Red paid video (https://github.com/rg3/youtube-dl/issues/10059) 
 967             'url': 'https://www.youtube.com/watch?v=i1Ko8UG-Tdo', 
 968             'only_matching': True, 
 971             # Rental video preview 
 972             'url': 'https://www.youtube.com/watch?v=yYr8q0y5Jfg', 
 976                 'title': 'Piku - Trailer', 
 977                 'description': 'md5:c36bd60c3fd6f1954086c083c72092eb', 
 978                 'upload_date': '20150811', 
 979                 'uploader': 'FlixMatrix', 
 980                 'uploader_id': 'FlixMatrixKaravan', 
 981                 'uploader_url': r
're:https?://(?:www\.)?youtube\.com/user/FlixMatrixKaravan', 
 982                 'license': 'Standard YouTube License', 
 985                 'skip_download': True, 
 989             # YouTube Red video with episode data 
 990             'url': 'https://www.youtube.com/watch?v=iqKdEhx-dD4', 
 994                 'title': 'Isolation - Mind Field (Ep 1)', 
 995                 'description': 'md5:8013b7ddea787342608f63a13ddc9492', 
 997                 'upload_date': '20170118', 
 998                 'uploader': 'Vsauce', 
 999                 'uploader_id': 'Vsauce', 
1000                 'uploader_url': r
're:https?://(?:www\.)?youtube\.com/user/Vsauce', 
1001                 'license': 'Standard YouTube License', 
1002                 'series': 'Mind Field', 
1004                 'episode_number': 1, 
1007                 'skip_download': True, 
1009             'expected_warnings': [ 
1010                 'Skipping DASH manifest', 
1014             # The following content has been identified by the YouTube community 
1015             # as inappropriate or offensive to some audiences. 
1016             'url': 'https://www.youtube.com/watch?v=6SJNVb0GnPI', 
1018                 'id': '6SJNVb0GnPI', 
1020                 'title': 'Race Differences in Intelligence', 
1021                 'description': 'md5:5d161533167390427a1f8ee89a1fc6f1', 
1023                 'upload_date': '20140124', 
1024                 'uploader': 'New Century Foundation', 
1025                 'uploader_id': 'UCEJYpZGqgUob0zVVEaLhvVg', 
1026                 'uploader_url': r
're:https?://(?:www\.)?youtube\.com/channel/UCEJYpZGqgUob0zVVEaLhvVg', 
1027                 'license': 'Standard YouTube License', 
1031                 'skip_download': True, 
1036             'url': '1t24XAntNCY', 
1037             'only_matching': True, 
1040             # geo restricted to JP 
1041             'url': 'sJL6WA-aGkQ', 
1042             'only_matching': True, 
1045             'url': 'https://www.youtube.com/watch?v=MuAGGZNfUkU&list=RDMM', 
1046             'only_matching': True, 
1050     def __init__(self
, *args
, **kwargs
): 
1051         super(YoutubeIE
, self
).__init
__(*args
, **kwargs
) 
1052         self
._player
_cache 
= {} 
1054     def report_video_info_webpage_download(self
, video_id
): 
1055         """Report attempt to download video info webpage.""" 
1056         self
.to_screen('%s: Downloading video info webpage' % video_id
) 
1058     def report_information_extraction(self
, video_id
): 
1059         """Report attempt to extract video information.""" 
1060         self
.to_screen('%s: Extracting video information' % video_id
) 
1062     def report_unavailable_format(self
, video_id
, format
): 
1063         """Report extracted video URL.""" 
1064         self
.to_screen('%s: Format %s not available' % (video_id
, format
)) 
1066     def report_rtmp_download(self
): 
1067         """Indicate the download will use the RTMP protocol.""" 
1068         self
.to_screen('RTMP download detected') 
1070     def _signature_cache_id(self
, example_sig
): 
1071         """ Return a string representation of a signature """ 
1072         return '.'.join(compat_str(len(part
)) for part 
in example_sig
.split('.')) 
1074     def _extract_signature_function(self
, video_id
, player_url
, example_sig
): 
1076             r
'.*?-(?P<id>[a-zA-Z0-9_-]+)(?:/watch_as3|/html5player(?:-new)?|(?:/[a-z]{2}_[A-Z]{2})?/base)?\.(?P<ext>[a-z]+)$', 
1079             raise ExtractorError('Cannot identify player %r' % player_url
) 
1080         player_type 
= id_m
.group('ext') 
1081         player_id 
= id_m
.group('id') 
1083         # Read from filesystem cache 
1084         func_id 
= '%s_%s_%s' % ( 
1085             player_type
, player_id
, self
._signature
_cache
_id
(example_sig
)) 
1086         assert os
.path
.basename(func_id
) == func_id
 
1088         cache_spec 
= self
._downloader
.cache
.load('youtube-sigfuncs', func_id
) 
1089         if cache_spec 
is not None: 
1090             return lambda s
: ''.join(s
[i
] for i 
in cache_spec
) 
1093             'Downloading player %s' % player_url
 
1094             if self
._downloader
.params
.get('verbose') else 
1095             'Downloading %s player %s' % (player_type
, player_id
) 
1097         if player_type 
== 'js': 
1098             code 
= self
._download
_webpage
( 
1099                 player_url
, video_id
, 
1101                 errnote
='Download of %s failed' % player_url
) 
1102             res 
= self
._parse
_sig
_js
(code
) 
1103         elif player_type 
== 'swf': 
1104             urlh 
= self
._request
_webpage
( 
1105                 player_url
, video_id
, 
1107                 errnote
='Download of %s failed' % player_url
) 
1109             res 
= self
._parse
_sig
_swf
(code
) 
1111             assert False, 'Invalid player type %r' % player_type
 
1113         test_string 
= ''.join(map(compat_chr
, range(len(example_sig
)))) 
1114         cache_res 
= res(test_string
) 
1115         cache_spec 
= [ord(c
) for c 
in cache_res
] 
1117         self
._downloader
.cache
.store('youtube-sigfuncs', func_id
, cache_spec
) 
1120     def _print_sig_code(self
, func
, example_sig
): 
1121         def gen_sig_code(idxs
): 
1122             def _genslice(start
, end
, step
): 
1123                 starts 
= '' if start 
== 0 else str(start
) 
1124                 ends 
= (':%d' % (end 
+ step
)) if end 
+ step 
>= 0 else ':' 
1125                 steps 
= '' if step 
== 1 else (':%d' % step
) 
1126                 return 's[%s%s%s]' % (starts
, ends
, steps
) 
1129             # Quelch pyflakes warnings - start will be set when step is set 
1130             start 
= '(Never used)' 
1131             for i
, prev 
in zip(idxs
[1:], idxs
[:-1]): 
1132                 if step 
is not None: 
1133                     if i 
- prev 
== step
: 
1135                     yield _genslice(start
, prev
, step
) 
1138                 if i 
- prev 
in [-1, 1]: 
1143                     yield 's[%d]' % prev
 
1147                 yield _genslice(start
, i
, step
) 
1149         test_string 
= ''.join(map(compat_chr
, range(len(example_sig
)))) 
1150         cache_res 
= func(test_string
) 
1151         cache_spec 
= [ord(c
) for c 
in cache_res
] 
1152         expr_code 
= ' + '.join(gen_sig_code(cache_spec
)) 
1153         signature_id_tuple 
= '(%s)' % ( 
1154             ', '.join(compat_str(len(p
)) for p 
in example_sig
.split('.'))) 
1155         code 
= ('if tuple(len(p) for p in s.split(\'.\')) == %s:\n' 
1156                 '    return %s\n') % (signature_id_tuple
, expr_code
) 
1157         self
.to_screen('Extracted signature function:\n' + code
) 
1159     def _parse_sig_js(self
, jscode
): 
1160         funcname 
= self
._search
_regex
( 
1161             (r
'(["\'])signature\
1\s
*,\s
*(?P
<sig
>[a
-zA
-Z0
-9$
]+)\
(', 
1162              r'\
.sig\|\|
(?P
<sig
>[a
-zA
-Z0
-9$
]+)\
('), 
1163             jscode, 'Initial JS player signature function name
', group='sig
') 
1165         jsi = JSInterpreter(jscode) 
1166         initial_function = jsi.extract_function(funcname) 
1167         return lambda s: initial_function([s]) 
1169     def _parse_sig_swf(self, file_contents): 
1170         swfi = SWFInterpreter(file_contents) 
1171         TARGET_CLASSNAME = 'SignatureDecipher
' 
1172         searched_class = swfi.extract_class(TARGET_CLASSNAME) 
1173         initial_function = swfi.extract_function(searched_class, 'decipher
') 
1174         return lambda s: initial_function([s]) 
1176     def _decrypt_signature(self, s, video_id, player_url, age_gate=False): 
1177         """Turn the encrypted s field into a working signature""" 
1179         if player_url is None: 
1180             raise ExtractorError('Cannot decrypt signature without player_url
') 
1182         if player_url.startswith('//'): 
1183             player_url = 'https
:' + player_url 
1184         elif not re.match(r'https?
://', player_url): 
1185             player_url = compat_urlparse.urljoin( 
1186                 'https
://www
.youtube
.com
', player_url) 
1188             player_id = (player_url, self._signature_cache_id(s)) 
1189             if player_id not in self._player_cache: 
1190                 func = self._extract_signature_function( 
1191                     video_id, player_url, s 
1193                 self._player_cache[player_id] = func 
1194             func = self._player_cache[player_id] 
1195             if self._downloader.params.get('youtube_print_sig_code
'): 
1196                 self._print_sig_code(func, s) 
1198         except Exception as e: 
1199             tb = traceback.format_exc() 
1200             raise ExtractorError( 
1201                 'Signature extraction failed
: ' + tb, cause=e) 
1203     def _get_subtitles(self, video_id, webpage): 
1205             subs_doc = self._download_xml( 
1206                 'https
://video
.google
.com
/timedtext?hl
=en
&type=list&v
=%s' % video_id, 
1207                 video_id, note=False) 
1208         except ExtractorError as err: 
1209             self._downloader.report_warning('unable to download video subtitles
: %s' % error_to_compat_str(err)) 
1213         for track in subs_doc.findall('track
'): 
1214             lang = track.attrib['lang_code
'] 
1215             if lang in sub_lang_list: 
1218             for ext in self._SUBTITLE_FORMATS: 
1219                 params = compat_urllib_parse_urlencode({ 
1223                     'name
': track.attrib['name
'].encode('utf
-8'), 
1225                 sub_formats.append({ 
1226                     'url
': 'https
://www
.youtube
.com
/api
/timedtext?
' + params, 
1229             sub_lang_list[lang] = sub_formats 
1230         if not sub_lang_list: 
1231             self._downloader.report_warning('video doesn
\'t have subtitles
') 
1233         return sub_lang_list 
1235     def _get_ytplayer_config(self, video_id, webpage): 
1237             # User data may contain arbitrary character sequences that may affect 
1238             # JSON extraction with regex, e.g. when '};' is contained the second 
1239             # regex won't capture the whole JSON
. Yet working around by trying more
 
1240             # concrete regex first keeping in mind proper quoted string handling 
1241             # to be implemented in future that will replace this workaround (see 
1242             # https://github.com/rg3/youtube-dl/issues/7468, 
1243             # https://github.com/rg3/youtube-dl/pull/7599) 
1244             r
';ytplayer\.config\s*=\s*({.+?});ytplayer', 
1245             r
';ytplayer\.config\s*=\s*({.+?});', 
1247         config 
= self
._search
_regex
( 
1248             patterns
, webpage
, 'ytplayer.config', default
=None) 
1250             return self
._parse
_json
( 
1251                 uppercase_escape(config
), video_id
, fatal
=False) 
1253     def _get_automatic_captions(self
, video_id
, webpage
): 
1254         """We need the webpage for getting the captions url, pass it as an 
1255            argument to speed up the process.""" 
1256         self
.to_screen('%s: Looking for automatic captions' % video_id
) 
1257         player_config 
= self
._get
_ytplayer
_config
(video_id
, webpage
) 
1258         err_msg 
= 'Couldn\'t find automatic captions for %s' % video_id
 
1259         if not player_config
: 
1260             self
._downloader
.report_warning(err_msg
) 
1263             args 
= player_config
['args'] 
1264             caption_url 
= args
.get('ttsurl') 
1266                 timestamp 
= args
['timestamp'] 
1267                 # We get the available subtitles 
1268                 list_params 
= compat_urllib_parse_urlencode({ 
1273                 list_url 
= caption_url 
+ '&' + list_params
 
1274                 caption_list 
= self
._download
_xml
(list_url
, video_id
) 
1275                 original_lang_node 
= caption_list
.find('track') 
1276                 if original_lang_node 
is None: 
1277                     self
._downloader
.report_warning('Video doesn\'t have automatic captions') 
1279                 original_lang 
= original_lang_node
.attrib
['lang_code'] 
1280                 caption_kind 
= original_lang_node
.attrib
.get('kind', '') 
1283                 for lang_node 
in caption_list
.findall('target'): 
1284                     sub_lang 
= lang_node
.attrib
['lang_code'] 
1286                     for ext 
in self
._SUBTITLE
_FORMATS
: 
1287                         params 
= compat_urllib_parse_urlencode({ 
1288                             'lang': original_lang
, 
1292                             'kind': caption_kind
, 
1294                         sub_formats
.append({ 
1295                             'url': caption_url 
+ '&' + params
, 
1298                     sub_lang_list
[sub_lang
] = sub_formats
 
1299                 return sub_lang_list
 
1301             def make_captions(sub_url
, sub_langs
): 
1302                 parsed_sub_url 
= compat_urllib_parse_urlparse(sub_url
) 
1303                 caption_qs 
= compat_parse_qs(parsed_sub_url
.query
) 
1305                 for sub_lang 
in sub_langs
: 
1307                     for ext 
in self
._SUBTITLE
_FORMATS
: 
1309                             'tlang': [sub_lang
], 
1312                         sub_url 
= compat_urlparse
.urlunparse(parsed_sub_url
._replace
( 
1313                             query
=compat_urllib_parse_urlencode(caption_qs
, True))) 
1314                         sub_formats
.append({ 
1318                     captions
[sub_lang
] = sub_formats
 
1321             # New captions format as of 22.06.2017 
1322             player_response 
= args
.get('player_response') 
1323             if player_response 
and isinstance(player_response
, compat_str
): 
1324                 player_response 
= self
._parse
_json
( 
1325                     player_response
, video_id
, fatal
=False) 
1327                     renderer 
= player_response
['captions']['playerCaptionsTracklistRenderer'] 
1328                     base_url 
= renderer
['captionTracks'][0]['baseUrl'] 
1330                     for lang 
in renderer
['translationLanguages']: 
1331                         lang_code 
= lang
.get('languageCode') 
1333                             sub_lang_list
.append(lang_code
) 
1334                     return make_captions(base_url
, sub_lang_list
) 
1336             # Some videos don't provide ttsurl but rather caption_tracks and 
1337             # caption_translation_languages (e.g. 20LmZk1hakA) 
1338             # Does not used anymore as of 22.06.2017 
1339             caption_tracks 
= args
['caption_tracks'] 
1340             caption_translation_languages 
= args
['caption_translation_languages'] 
1341             caption_url 
= compat_parse_qs(caption_tracks
.split(',')[0])['u'][0] 
1343             for lang 
in caption_translation_languages
.split(','): 
1344                 lang_qs 
= compat_parse_qs(compat_urllib_parse_unquote_plus(lang
)) 
1345                 sub_lang 
= lang_qs
.get('lc', [None])[0] 
1347                     sub_lang_list
.append(sub_lang
) 
1348             return make_captions(caption_url
, sub_lang_list
) 
1349         # An extractor error can be raise by the download process if there are 
1350         # no automatic captions but there are subtitles 
1351         except (KeyError, IndexError, ExtractorError
): 
1352             self
._downloader
.report_warning(err_msg
) 
1355     def _mark_watched(self
, video_id
, video_info
): 
1356         playback_url 
= video_info
.get('videostats_playback_base_url', [None])[0] 
1357         if not playback_url
: 
1359         parsed_playback_url 
= compat_urlparse
.urlparse(playback_url
) 
1360         qs 
= compat_urlparse
.parse_qs(parsed_playback_url
.query
) 
1362         # cpn generation algorithm is reverse engineered from base.js. 
1363         # In fact it works even with dummy cpn. 
1364         CPN_ALPHABET 
= 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-_' 
1365         cpn 
= ''.join((CPN_ALPHABET
[random
.randint(0, 256) & 63] for _ 
in range(0, 16))) 
1371         playback_url 
= compat_urlparse
.urlunparse( 
1372             parsed_playback_url
._replace
(query
=compat_urllib_parse_urlencode(qs
, True))) 
1374         self
._download
_webpage
( 
1375             playback_url
, video_id
, 'Marking watched', 
1376             'Unable to mark watched', fatal
=False) 
1379     def _extract_urls(webpage
): 
1380         # Embedded YouTube player 
1382             unescapeHTML(mobj
.group('url')) 
1383             for mobj 
in re
.finditer(r
'''(?x) 
1393                 (?P
<url
>(?
:https?
:)?
//(?
:www\
.)?
youtube(?
:-nocookie
)?\
.com
/ 
1397         # lazyYT YouTube embed 
1398         entries.extend(list(map( 
1400             re.findall(r'class="lazyYT" data-youtube-id="([^"]+)"', webpage)))) 
1402         # Wordpress "YouTube Video Importer" plugin 
1403         matches = re.findall(r'''(?x
)<div
[^
>]+ 
1404             class=(?P
<q1
>[\'"])[^\'"]*\byvii
_single
_video
_player
\b[^
\'"]*(?P=q1)[^>]+ 
1405             data-video_id=(?P<q2>[\'"])([^
\'"]+)(?P=q2)''', webpage) 
1406         entries.extend(m[-1] for m in matches) 
1411     def _extract_url(webpage): 
1412         urls = YoutubeIE._extract_urls(webpage) 
1413         return urls[0] if urls else None 
1416     def extract_id(cls, url): 
1417         mobj = re.match(cls._VALID_URL, url, re.VERBOSE) 
1419             raise ExtractorError('Invalid URL: %s' % url) 
1420         video_id = mobj.group(2) 
1423     def _extract_annotations(self, video_id): 
1424         url = 'https://www.youtube.com/annotations_invideo?features=1&legacy=1&video_id=%s' % video_id 
1425         return self._download_webpage(url, video_id, note='Searching for annotations.', errnote='Unable to download video annotations.') 
1428     def _extract_chapters(description, duration): 
1431         chapter_lines = re.findall( 
1432             r'(?:^|<br\s*/>)([^<]*<a[^>]+onclick=["\']yt\
.www\
.watch\
.player\
.seekTo
[^
>]+>(\d
{1,2}:\d
{1,2}(?
::\d
{1,2})?
)</a
>[^
>]*)(?
=$|
<br\s
*/>)', 
1434         if not chapter_lines: 
1437         for next_num, (chapter_line, time_point) in enumerate( 
1438                 chapter_lines, start=1): 
1439             start_time = parse_duration(time_point) 
1440             if start_time is None: 
1442             if start_time > duration: 
1444             end_time = (duration if next_num == len(chapter_lines) 
1445                         else parse_duration(chapter_lines[next_num][1])) 
1446             if end_time is None: 
1448             if end_time > duration: 
1450             if start_time > end_time: 
1452             chapter_title = re.sub( 
1453                 r'<a
[^
>]+>[^
<]+</a
>', '', chapter_line).strip(' \t-') 
1454             chapter_title = re.sub(r'\s
+', ' ', chapter_title) 
1456                 'start_time
': start_time, 
1457                 'end_time
': end_time, 
1458                 'title
': chapter_title, 
1462     def _real_extract(self, url): 
1463         url, smuggled_data = unsmuggle_url(url, {}) 
1466             'http
' if self._downloader.params.get('prefer_insecure
', False) 
1471         parsed_url = compat_urllib_parse_urlparse(url) 
1472         for component in [parsed_url.fragment, parsed_url.query]: 
1473             query = compat_parse_qs(component) 
1474             if start_time is None and 't
' in query: 
1475                 start_time = parse_duration(query['t
'][0]) 
1476             if start_time is None and 'start
' in query: 
1477                 start_time = parse_duration(query['start
'][0]) 
1478             if end_time is None and 'end
' in query: 
1479                 end_time = parse_duration(query['end
'][0]) 
1481         # Extract original video URL from URL with redirection, like age verification, using next_url parameter 
1482         mobj = re.search(self._NEXT_URL_RE, url) 
1484             url = proto + '://www
.youtube
.com
/' + compat_urllib_parse_unquote(mobj.group(1)).lstrip('/') 
1485         video_id = self.extract_id(url) 
1488         url = proto + '://www
.youtube
.com
/watch?v
=%s&gl
=US
&hl
=en
&has_verified
=1&bpctr
=9999999999' % video_id 
1489         video_webpage = self._download_webpage(url, video_id) 
1491         # Attempt to extract SWF player URL 
1492         mobj = re.search(r'swfConfig
.*?
"(https?:\\/\\/.*?watch.*?-.*?\.swf)"', video_webpage) 
1493         if mobj is not None: 
1494             player_url = re.sub(r'\\(.)', r'\
1', mobj.group(1)) 
1500         def add_dash_mpd(video_info): 
1501             dash_mpd = video_info.get('dashmpd
') 
1502             if dash_mpd and dash_mpd[0] not in dash_mpds: 
1503                 dash_mpds.append(dash_mpd[0]) 
1508         def extract_view_count(v_info): 
1509             return int_or_none(try_get(v_info, lambda x: x['view_count
'][0])) 
1512         embed_webpage = None 
1513         if re.search(r'player
-age
-gate
-content
">', video_webpage) is not None: 
1515             # We simulate the access to the video from www.youtube.com/v/{video_id} 
1516             # this can be viewed without login into Youtube 
1517             url = proto + '://www.youtube.com/embed/%s' % video_id 
1518             embed_webpage = self._download_webpage(url, video_id, 'Downloading embed webpage') 
1519             data = compat_urllib_parse_urlencode({ 
1520                 'video_id': video_id, 
1521                 'eurl': 'https://youtube.googleapis.com/v/' + video_id, 
1522                 'sts': self._search_regex( 
1523                     r'"sts
"\s*:\s*(\d+)', embed_webpage, 'sts', default=''), 
1525             video_info_url = proto + '://www.youtube.com/get_video_info?' + data 
1526             video_info_webpage = self._download_webpage( 
1527                 video_info_url, video_id, 
1528                 note='Refetching age-gated info webpage', 
1529                 errnote='unable to download video info webpage') 
1530             video_info = compat_parse_qs(video_info_webpage) 
1531             add_dash_mpd(video_info) 
1536             # Try looking directly into the video webpage 
1537             ytplayer_config = self._get_ytplayer_config(video_id, video_webpage) 
1539                 args = ytplayer_config['args'] 
1540                 if args.get('url_encoded_fmt_stream_map'): 
1541                     # Convert to the same format returned by compat_parse_qs 
1542                     video_info = dict((k, [v]) for k, v in args.items()) 
1543                     add_dash_mpd(video_info) 
1544                 # Rental video is not rented but preview is available (e.g. 
1545                 # https://www.youtube.com/watch?v=yYr8q0y5Jfg, 
1546                 # https://github.com/rg3/youtube-dl/issues/10532) 
1547                 if not video_info and args.get('ypc_vid'): 
1548                     return self.url_result( 
1549                         args['ypc_vid'], YoutubeIE.ie_key(), video_id=args['ypc_vid']) 
1550                 if args.get('livestream') == '1' or args.get('live_playback') == 1: 
1552                 sts = ytplayer_config.get('sts') 
1553             if not video_info or self._downloader.params.get('youtube_include_dash_manifest', True): 
1554                 # We also try looking in get_video_info since it may contain different dashmpd 
1555                 # URL that points to a DASH manifest with possibly different itag set (some itags 
1556                 # are missing from DASH manifest pointed by webpage's dashmpd, some - from DASH 
1557                 # manifest pointed by get_video_info's dashmpd). 
1558                 # The general idea is to take a union of itags of both DASH manifests (for example 
1559                 # video with such 'manifest behavior' see https://github.com/rg3/youtube-dl/issues/6093) 
1560                 self.report_video_info_webpage_download(video_id) 
1561                 for el in ('info', 'embedded', 'detailpage', 'vevo', ''): 
1563                         'video_id': video_id, 
1573                     video_info_webpage = self._download_webpage( 
1574                         '%s://www.youtube.com/get_video_info' % proto, 
1575                         video_id, note=False, 
1576                         errnote='unable to download video info webpage', 
1577                         fatal=False, query=query) 
1578                     if not video_info_webpage: 
1580                     get_video_info = compat_parse_qs(video_info_webpage) 
1581                     add_dash_mpd(get_video_info) 
1582                     if view_count is None: 
1583                         view_count = extract_view_count(get_video_info) 
1585                         video_info = get_video_info 
1586                     if 'token' in get_video_info: 
1587                         # Different get_video_info requests may report different results, e.g. 
1588                         # some may report video unavailability, but some may serve it without 
1589                         # any complaint (see https://github.com/rg3/youtube-dl/issues/7362, 
1590                         # the original webpage as well as el=info and el=embedded get_video_info 
1591                         # requests report video unavailability due to geo restriction while 
1592                         # el=detailpage succeeds and returns valid data). This is probably 
1593                         # due to YouTube measures against IP ranges of hosting providers. 
1594                         # Working around by preferring the first succeeded video_info containing 
1595                         # the token if no such video_info yet was found. 
1596                         if 'token' not in video_info: 
1597                             video_info = get_video_info 
1599         if 'token' not in video_info: 
1600             if 'reason' in video_info: 
1601                 if 'The uploader has not made this video available in your country.' in video_info['reason']: 
1602                     regions_allowed = self._html_search_meta( 
1603                         'regionsAllowed', video_webpage, default=None) 
1604                     countries = regions_allowed.split(',') if regions_allowed else None 
1605                     self.raise_geo_restricted( 
1606                         msg=video_info['reason'][0], countries=countries) 
1607                 raise ExtractorError( 
1608                     'YouTube said: %s' % video_info['reason'][0], 
1609                     expected=True, video_id=video_id) 
1611                 raise ExtractorError( 
1612                     '"token
" parameter not in video info for unknown reason', 
1616         if 'title' in video_info: 
1617             video_title = video_info['title'][0] 
1619             self._downloader.report_warning('Unable to extract video title') 
1623         description_original = video_description = get_element_by_id("eow
-description
", video_webpage) 
1624         if video_description: 
1625             description_original = video_description = re.sub(r'''(?x) 
1627                     (?:[a-zA-Z-]+="[^
"]*"\s
+)*?
 
1628                     (?
:title|href
)="([^"]+)"\s+ 
1629                     (?:[a-zA-Z-]+="[^
"]*"\s
+)*?
 
1633             ''', lambda m: compat_urlparse.urljoin(url, m.group(1)), video_description) 
1634             video_description = clean_html(video_description) 
1636             fd_mobj = re.search(r'<meta name="description
" content="([^
"]+)"', video_webpage) 
1638                 video_description = unescapeHTML(fd_mobj.group(1)) 
1640                 video_description = '' 
1642         if 'multifeed_metadata_list
' in video_info and not smuggled_data.get('force_singlefeed
', False): 
1643             if not self._downloader.params.get('noplaylist
'): 
1646                 multifeed_metadata_list = video_info['multifeed_metadata_list
'][0] 
1647                 for feed in multifeed_metadata_list.split(','): 
1648                     # Unquote should take place before split on comma (,) since textual 
1649                     # fields may contain comma as well (see 
1650                     # https://github.com/rg3/youtube-dl/issues/8536) 
1651                     feed_data = compat_parse_qs(compat_urllib_parse_unquote_plus(feed)) 
1653                         '_type
': 'url_transparent
', 
1654                         'ie_key
': 'Youtube
', 
1656                             '%s://www
.youtube
.com
/watch?v
=%s' % (proto, feed_data['id'][0]), 
1657                             {'force_singlefeed
': True}), 
1658                         'title
': '%s (%s)' % (video_title, feed_data['title
'][0]), 
1660                     feed_ids.append(feed_data['id'][0]) 
1662                     'Downloading multifeed 
video (%s) - add 
--no
-playlist to just download video 
%s' 
1663                     % (', '.join(feed_ids), video_id)) 
1664                 return self.playlist_result(entries, video_id, video_title, video_description) 
1665             self.to_screen('Downloading just video 
%s because of 
--no
-playlist
' % video_id) 
1667         if view_count is None: 
1668             view_count = extract_view_count(video_info) 
1670         # Check for "rental" videos 
1671         if 'ypc_video_rental_bar_text
' in video_info and 'author
' not in video_info: 
1672             raise ExtractorError('"rental" videos 
not supported
. See https
://github
.com
/rg3
/youtube
-dl
/issues
/359 for more information
.', expected=True) 
1674         # Start extracting information 
1675         self.report_information_extraction(video_id) 
1678         if 'author
' not in video_info: 
1679             raise ExtractorError('Unable to extract uploader name
') 
1680         video_uploader = compat_urllib_parse_unquote_plus(video_info['author
'][0]) 
1683         video_uploader_id = None 
1684         video_uploader_url = None 
1686             r'<link itemprop
="url" href
="(?P<uploader_url>https?://www\.youtube\.com/(?:user|channel)/(?P<uploader_id>[^"]+))">', 
1688         if mobj is not None: 
1689             video_uploader_id = mobj.group('uploader_id') 
1690             video_uploader_url = mobj.group('uploader_url') 
1692             self._downloader.report_warning('unable to extract uploader nickname') 
1695         # We try first to get a high quality image: 
1696         m_thumb = re.search(r'<span itemprop="thumbnail
".*?href="(.*?
)">', 
1697                             video_webpage, re.DOTALL) 
1698         if m_thumb is not None: 
1699             video_thumbnail = m_thumb.group(1) 
1700         elif 'thumbnail_url' not in video_info: 
1701             self._downloader.report_warning('unable to extract video thumbnail') 
1702             video_thumbnail = None 
1703         else:   # don't panic if we can't find it 
1704             video_thumbnail = compat_urllib_parse_unquote_plus(video_info['thumbnail_url'][0]) 
1707         upload_date = self._html_search_meta( 
1708             'datePublished', video_webpage, 'upload date', default=None) 
1710             upload_date = self._search_regex( 
1711                 [r'(?s)id="eow
-date
.*?
>(.*?
)</span
>', 
1712                  r'(?
:id="watch-uploader-info".*?
>.*?|
["\']simpleText["\']\s
*:\s
*["\'])(?:Published|Uploaded|Streamed live|Started) on (.+?)[<"\']'], 
1713                 video_webpage, 'upload date
', default=None) 
1714         upload_date = unified_strdate(upload_date) 
1716         video_license = self._html_search_regex( 
1717             r'<h4
[^
>]+class="title"[^
>]*>\s
*License\s
*</h4
>\s
*<ul
[^
>]*>\s
*<li
>(.+?
)</li
', 
1718             video_webpage, 'license
', default=None) 
1720         m_music = re.search( 
1722                 <h4[^>]+class="title"[^>]*>\s*Music\s*</h4>\s* 
1730                             \bhref=["\']/red[^>]*>|             # drop possible 
1731                             >\s*Listen ad-free with YouTube Red # YouTube Red ad 
1738             video_alt_title = remove_quotes(unescapeHTML(m_music.group('title
'))) 
1739             video_creator = clean_html(m_music.group('creator
')) 
1741             video_alt_title = video_creator = None 
1743         m_episode = re.search( 
1744             r'<div
[^
>]+id="watch7-headline"[^
>]*>\s
*<span
[^
>]*>.*?
>(?P
<series
>[^
<]+)</a
></b
>\s
*S(?P
<season
>\d
+)\s
*ā¢\s
*E(?P
<episode
>\d
+)</span
>', 
1747             series = m_episode.group('series
') 
1748             season_number = int(m_episode.group('season
')) 
1749             episode_number = int(m_episode.group('episode
')) 
1751             series = season_number = episode_number = None 
1753         m_cat_container = self._search_regex( 
1754             r'(?s
)<h4
[^
>]*>\s
*Category\s
*</h4
>\s
*<ul
[^
>]*>(.*?
)</ul
>', 
1755             video_webpage, 'categories
', default=None) 
1757             category = self._html_search_regex( 
1758                 r'(?s
)<a
[^
<]+>(.*?
)</a
>', m_cat_container, 'category
', 
1760             video_categories = None if category is None else [category] 
1762             video_categories = None 
1765             unescapeHTML(m.group('content
')) 
1766             for m in re.finditer(self._meta_regex('og
:video
:tag
'), video_webpage)] 
1768         def _extract_count(count_name): 
1769             return str_to_int(self._search_regex( 
1770                 r'-%s-button
[^
>]+><span
[^
>]+class="yt-uix-button-content"[^
>]*>([\d
,]+)</span
>' 
1771                 % re.escape(count_name), 
1772                 video_webpage, count_name, default=None)) 
1774         like_count = _extract_count('like
') 
1775         dislike_count = _extract_count('dislike
') 
1778         video_subtitles = self.extract_subtitles(video_id, video_webpage) 
1779         automatic_captions = self.extract_automatic_captions(video_id, video_webpage) 
1781         video_duration = try_get( 
1782             video_info, lambda x: int_or_none(x['length_seconds
'][0])) 
1783         if not video_duration: 
1784             video_duration = parse_duration(self._html_search_meta( 
1785                 'duration
', video_webpage, 'video duration
')) 
1788         video_annotations = None 
1789         if self._downloader.params.get('writeannotations
', False): 
1790             video_annotations = self._extract_annotations(video_id) 
1792         chapters = self._extract_chapters(description_original, video_duration) 
1794         if 'conn
' in video_info and video_info['conn
'][0].startswith('rtmp
'): 
1795             self.report_rtmp_download() 
1797                 'format_id
': '_rtmp
', 
1799                 'url
': video_info['conn
'][0], 
1800                 'player_url
': player_url, 
1802         elif len(video_info.get('url_encoded_fmt_stream_map
', [''])[0]) >= 1 or len(video_info.get('adaptive_fmts
', [''])[0]) >= 1: 
1803             encoded_url_map = video_info.get('url_encoded_fmt_stream_map
', [''])[0] + ',' + video_info.get('adaptive_fmts
', [''])[0] 
1804             if 'rtmpe
%3Dyes
' in encoded_url_map: 
1805                 raise ExtractorError('rtmpe downloads are 
not supported
, see https
://github
.com
/rg3
/youtube
-dl
/issues
/343 for more information
.', expected=True) 
1807             fmt_list = video_info.get('fmt_list
', [''])[0] 
1809                 for fmt in fmt_list.split(','): 
1810                     spec = fmt.split('/') 
1812                         width_height = spec[1].split('x
') 
1813                         if len(width_height) == 2: 
1814                             formats_spec[spec[0]] = { 
1815                                 'resolution
': spec[1], 
1816                                 'width
': int_or_none(width_height[0]), 
1817                                 'height
': int_or_none(width_height[1]), 
1820             for url_data_str in encoded_url_map.split(','): 
1821                 url_data = compat_parse_qs(url_data_str) 
1822                 if 'itag
' not in url_data or 'url
' not in url_data: 
1824                 format_id = url_data['itag
'][0] 
1825                 url = url_data['url
'][0] 
1827                 if 's
' in url_data or self._downloader.params.get('youtube_include_dash_manifest
', True): 
1828                     ASSETS_RE = r'"assets":.+?
"js":\s
*("[^"]+")' 
1829                     jsplayer_url_json = self._search_regex( 
1831                         embed_webpage if age_gate else video_webpage, 
1832                         'JS player URL (1)', default=None) 
1833                     if not jsplayer_url_json and not age_gate: 
1834                         # We need the embed website after all 
1835                         if embed_webpage is None: 
1836                             embed_url = proto + '://www.youtube.com/embed/%s' % video_id 
1837                             embed_webpage = self._download_webpage( 
1838                                 embed_url, video_id, 'Downloading embed webpage') 
1839                         jsplayer_url_json = self._search_regex( 
1840                             ASSETS_RE, embed_webpage, 'JS player URL') 
1842                     player_url = json.loads(jsplayer_url_json) 
1843                     if player_url is None: 
1844                         player_url_json = self._search_regex( 
1845                             r'ytplayer\.config.*?"url
"\s*:\s*("[^
"]+")', 
1846                             video_webpage, 'age gate player URL
') 
1847                         player_url = json.loads(player_url_json) 
1849                 if 'sig
' in url_data: 
1850                     url += '&signature
=' + url_data['sig
'][0] 
1851                 elif 's
' in url_data: 
1852                     encrypted_sig = url_data['s
'][0] 
1854                     if self._downloader.params.get('verbose
'): 
1855                         if player_url is None: 
1856                             player_version = 'unknown
' 
1857                             player_desc = 'unknown
' 
1859                             if player_url.endswith('swf
'): 
1860                                 player_version = self._search_regex( 
1861                                     r'-(.+?
)(?
:/watch_as3
)?\
.swf$
', player_url, 
1862                                     'flash player
', fatal=False) 
1863                                 player_desc = 'flash player 
%s' % player_version 
1865                                 player_version = self._search_regex( 
1866                                     [r'html5player
-([^
/]+?
)(?
:/html5player(?
:-new
)?
)?\
.js
', 
1867                                      r'(?
:www|player
)-([^
/]+)(?
:/[a
-z
]{2}_
[A
-Z
]{2}
)?
/base\
.js
'], 
1869                                     'html5 player
', fatal=False) 
1870                                 player_desc = 'html5 player 
%s' % player_version 
1872                         parts_sizes = self._signature_cache_id(encrypted_sig) 
1873                         self.to_screen('{%s} signature length 
%s, %s' % 
1874                                        (format_id, parts_sizes, player_desc)) 
1876                     signature = self._decrypt_signature( 
1877                         encrypted_sig, video_id, player_url, age_gate) 
1878                     url += '&signature
=' + signature 
1879                 if 'ratebypass
' not in url: 
1880                     url += '&ratebypass
=yes
' 
1883                     'format_id
': format_id, 
1885                     'player_url
': player_url, 
1887                 if format_id in self._formats: 
1888                     dct.update(self._formats[format_id]) 
1889                 if format_id in formats_spec: 
1890                     dct.update(formats_spec[format_id]) 
1892                 # Some itags are not included in DASH manifest thus corresponding formats will 
1893                 # lack metadata (see https://github.com/rg3/youtube-dl/pull/5993). 
1894                 # Trying to extract metadata from url_encoded_fmt_stream_map entry. 
1895                 mobj = re.search(r'^
(?P
<width
>\d
+)[xX
](?P
<height
>\d
+)$
', url_data.get('size
', [''])[0]) 
1896                 width, height = (int(mobj.group('width
')), int(mobj.group('height
'))) if mobj else (None, None) 
1899                     'filesize
': int_or_none(url_data.get('clen
', [None])[0]), 
1900                     'tbr
': float_or_none(url_data.get('bitrate
', [None])[0], 1000), 
1903                     'fps
': int_or_none(url_data.get('fps
', [None])[0]), 
1904                     'format_note
': url_data.get('quality_label
', [None])[0] or url_data.get('quality
', [None])[0], 
1906                 for key, value in more_fields.items(): 
1909                 type_ = url_data.get('type', [None])[0] 
1911                     type_split = type_.split(';') 
1912                     kind_ext = type_split[0].split('/') 
1913                     if len(kind_ext) == 2: 
1915                         dct['ext
'] = mimetype2ext(type_split[0]) 
1916                         if kind in ('audio
', 'video
'): 
1918                             for mobj in re.finditer( 
1919                                     r'(?P
<key
>[a
-zA
-Z_
-]+)=(?P
<quote
>["\']?)(?P<val>.+?)(?P=quote)(?:;|$)', type_): 
1920                                 if mobj.group('key') == 'codecs': 
1921                                     codecs = mobj.group('val') 
1924                                 dct.update(parse_codecs(codecs)) 
1926         elif video_info.get('hlsvp'): 
1927             manifest_url = video_info['hlsvp'][0] 
1929             m3u8_formats = self._extract_m3u8_formats( 
1930                 manifest_url, video_id, 'mp4', fatal=False) 
1931             for a_format in m3u8_formats: 
1932                 itag = self._search_regex( 
1933                     r'/itag/(\d+)/', a_format['url'], 'itag', default=None) 
1935                     a_format['format_id'] = itag 
1936                     if itag in self._formats: 
1937                         dct = self._formats[itag].copy() 
1938                         dct.update(a_format) 
1940                 a_format['player_url'] = player_url 
1941                 # Accept-Encoding header causes failures in live streams on Youtube and Youtube Gaming 
1942                 a_format.setdefault('http_headers', {})['Youtubedl-no-compression'] = 'True' 
1943                 formats.append(a_format) 
1945             unavailable_message = self._html_search_regex( 
1946                 r'(?s)<h1[^>]+id="unavailable
-message
"[^>]*>(.+?)</h1>', 
1947                 video_webpage, 'unavailable message', default=None) 
1948             if unavailable_message: 
1949                 raise ExtractorError(unavailable_message, expected=True) 
1950             raise ExtractorError('no conn, hlsvp or url_encoded_fmt_stream_map information found in video info') 
1952         # Look for the DASH manifest 
1953         if self._downloader.params.get('youtube_include_dash_manifest', True): 
1954             dash_mpd_fatal = True 
1955             for mpd_url in dash_mpds: 
1958                     def decrypt_sig(mobj): 
1960                         dec_s = self._decrypt_signature(s, video_id, player_url, age_gate) 
1961                         return '/signature/%s' % dec_s 
1963                     mpd_url = re.sub(r'/s/([a-fA-F0-9\.]+)', decrypt_sig, mpd_url) 
1965                     for df in self._extract_mpd_formats( 
1966                             mpd_url, video_id, fatal=dash_mpd_fatal, 
1967                             formats_dict=self._formats): 
1968                         # Do not overwrite DASH format found in some previous DASH manifest 
1969                         if df['format_id'] not in dash_formats: 
1970                             dash_formats[df['format_id']] = df 
1971                         # Additional DASH manifests may end up in HTTP Error 403 therefore 
1972                         # allow them to fail without bug report message if we already have 
1973                         # some DASH manifest succeeded. This is temporary workaround to reduce 
1974                         # burst of bug reports until we figure out the reason and whether it 
1975                         # can be fixed at all. 
1976                         dash_mpd_fatal = False 
1977                 except (ExtractorError, KeyError) as e: 
1978                     self.report_warning( 
1979                         'Skipping DASH manifest: %r' % e, video_id) 
1981                     # Remove the formats we found through non-DASH, they 
1982                     # contain less info and it can be wrong, because we use 
1983                     # fixed values (for example the resolution). See 
1984                     # https://github.com/rg3/youtube-dl/issues/5774 for an 
1986                     formats = [f for f in formats if f['format_id'] not in dash_formats.keys()] 
1987                     formats.extend(dash_formats.values()) 
1989         # Check for malformed aspect ratio 
1990         stretched_m = re.search( 
1991             r'<meta\s+property="og
:video
:tag
".*?content="yt
:stretch
=(?P
<w
>[0-9]+):(?P
<h
>[0-9]+)">', 
1994             w = float(stretched_m.group('w')) 
1995             h = float(stretched_m.group('h')) 
1996             # yt:stretch may hold invalid ratio data (e.g. for Q39EVAstoRM ratio is 17:0). 
1997             # We will only process correct ratios. 
2001                     if f.get('vcodec') != 'none': 
2002                         f['stretched_ratio'] = ratio 
2004         self._sort_formats(formats) 
2006         self.mark_watched(video_id, video_info) 
2010             'uploader': video_uploader, 
2011             'uploader_id': video_uploader_id, 
2012             'uploader_url': video_uploader_url, 
2013             'upload_date': upload_date, 
2014             'license': video_license, 
2015             'creator': video_creator, 
2016             'title': video_title, 
2017             'alt_title': video_alt_title, 
2018             'thumbnail': video_thumbnail, 
2019             'description': video_description, 
2020             'categories': video_categories, 
2022             'subtitles': video_subtitles, 
2023             'automatic_captions': automatic_captions, 
2024             'duration': video_duration, 
2025             'age_limit': 18 if age_gate else 0, 
2026             'annotations': video_annotations, 
2027             'chapters': chapters, 
2028             'webpage_url': proto + '://www.youtube.com/watch?v=%s' % video_id, 
2029             'view_count': view_count, 
2030             'like_count': like_count, 
2031             'dislike_count': dislike_count, 
2032             'average_rating': float_or_none(video_info.get('avg_rating', [None])[0]), 
2035             'start_time': start_time, 
2036             'end_time': end_time, 
2038             'season_number': season_number, 
2039             'episode_number': episode_number, 
2043 class YoutubePlaylistIE(YoutubePlaylistBaseInfoExtractor): 
2044     IE_DESC = 'YouTube.com playlists' 
2045     _VALID_URL = r"""(?x)(?: 
2051                                (?:course|view_play_list|my_playlists|artist|playlist|watch|embed/(?:videoseries|[0-9A-Za-z_-]{11})) 
2052                                \? (?:.*?[&;])*? (?:p|a|list)= 
2055                             youtu\.be/[0-9A-Za-z_-]{11}\?.*?\blist= 
2058                             (?:PL|LL|EC|UU|FL|RD|UL|TL)?[0-9A-Za-z-_]{10,} 
2059                             # Top tracks, they can also include dots 
2065                      )""" % {'playlist_id': YoutubeBaseInfoExtractor._PLAYLIST_ID_RE} 
2066     _TEMPLATE_URL = 'https://www.youtube.com/playlist?list=%s' 
2067     _VIDEO_RE = r'href="\s
*/watch
\?v
=(?P
<id>[0-9A
-Za
-z_
-]{11}
)&
;[^
"]*?index=(?P<index>\d+)(?:[^>]+>(?P<title>[^<]+))?' 
2068     IE_NAME = 'youtube:playlist' 
2070         'url': 'https://www.youtube.com/playlist?list=PLwiyx1dc3P2JR9N8gQaQN_BCvlSlap7re', 
2072             'title': 'ytdl test PL', 
2073             'id': 'PLwiyx1dc3P2JR9N8gQaQN_BCvlSlap7re', 
2075         'playlist_count': 3, 
2077         'url': 'https://www.youtube.com/playlist?list=PLtPgu7CB4gbZDA7i_euNxn75ISqxwZPYx', 
2079             'id': 'PLtPgu7CB4gbZDA7i_euNxn75ISqxwZPYx', 
2080             'title': 'YDL_Empty_List', 
2082         'playlist_count': 0, 
2083         'skip': 'This playlist is private', 
2085         'note': 'Playlist with deleted videos (#651). As a bonus, the video #51 is also twice in this list.', 
2086         'url': 'https://www.youtube.com/playlist?list=PLwP_SiAcdui0KVebT0mU9Apz359a4ubsC', 
2088             'title': '29C3: Not my department', 
2089             'id': 'PLwP_SiAcdui0KVebT0mU9Apz359a4ubsC', 
2091         'playlist_count': 95, 
2093         'note': 'issue #673', 
2094         'url': 'PLBB231211A4F62143', 
2096             'title': '[OLD]Team Fortress 2 (Class-based LP)', 
2097             'id': 'PLBB231211A4F62143', 
2099         'playlist_mincount': 26, 
2101         'note': 'Large playlist', 
2102         'url': 'https://www.youtube.com/playlist?list=UUBABnxM4Ar9ten8Mdjj1j0Q', 
2104             'title': 'Uploads from Cauchemar', 
2105             'id': 'UUBABnxM4Ar9ten8Mdjj1j0Q', 
2107         'playlist_mincount': 799, 
2109         'url': 'PLtPgu7CB4gbY9oDN3drwC3cMbJggS7dKl', 
2111             'title': 'YDL_safe_search', 
2112             'id': 'PLtPgu7CB4gbY9oDN3drwC3cMbJggS7dKl', 
2114         'playlist_count': 2, 
2115         'skip': 'This playlist is private', 
2118         'url': 'https://www.youtube.com/embed/videoseries?list=PL6IaIsEjSbf96XFRuNccS_RuEXwNdsoEu', 
2119         'playlist_count': 4, 
2122             'id': 'PL6IaIsEjSbf96XFRuNccS_RuEXwNdsoEu', 
2125         'url': 'http://www.youtube.com/embed/_xDOZElKyNU?list=PLsyOSbh5bs16vubvKePAQ1x3PhKavfBIl', 
2126         'playlist_mincount': 485, 
2128             'title': '2017 čÆčŖęę°å®ę² (2/24ę“ę°)', 
2129             'id': 'PLsyOSbh5bs16vubvKePAQ1x3PhKavfBIl', 
2132         'note': 'Embedded SWF player', 
2133         'url': 'https://www.youtube.com/p/YN5VISEtHet5D4NEvfTd0zcgFk84NqFZ?hl=en_US&fs=1&rel=0', 
2134         'playlist_count': 4, 
2137             'id': 'YN5VISEtHet5D4NEvfTd0zcgFk84NqFZ', 
2140         'note': 'Buggy playlist: the webpage has a "Load more
" button but it doesn\'t have more videos', 
2141         'url': 'https://www.youtube.com/playlist?list=UUXw-G3eDE9trcvY2sBMM_aA', 
2143             'title': 'Uploads from Interstellar Movie', 
2144             'id': 'UUXw-G3eDE9trcvY2sBMM_aA', 
2146         'playlist_mincount': 21, 
2148         # Playlist URL that does not actually serve a playlist 
2149         'url': 'https://www.youtube.com/watch?v=FqZTN594JQw&list=PLMYEtVRpaqY00V9W81Cwmzp6N6vZqfUKD4', 
2151             'id': 'FqZTN594JQw', 
2153             'title': "Smiley
's People 01 detective, Adventure Series, Action", 
2154             'uploader
': 'STREEM
', 
2155             'uploader_id
': 'UCyPhqAZgwYWZfxElWVbVJng
', 
2156             'uploader_url
': r're
:https?
://(?
:www\
.)?youtube\
.com
/channel
/UCyPhqAZgwYWZfxElWVbVJng
', 
2157             'upload_date
': '20150526', 
2158             'license
': 'Standard YouTube License
', 
2159             'description
': 'md5
:507cdcb5a49ac0da37a920ece610be80
', 
2160             'categories
': ['People 
& Blogs
'], 
2163             'dislike_count
': int, 
2166             'skip_download
': True, 
2168         'add_ie
': [YoutubeIE.ie_key()], 
2170         'url
': 'https
://youtu
.be
/yeWKywCrFtk?
list=PL2qgrgXsNUG5ig9cat4ohreBjYLAPC0J5
', 
2172             'id': 'yeWKywCrFtk
', 
2174             'title
': 'Small Scale Baler 
and Braiding Rugs
', 
2175             'uploader
': 'Backus
-Page House Museum
', 
2176             'uploader_id
': 'backuspagemuseum
', 
2177             'uploader_url
': r're
:https?
://(?
:www\
.)?youtube\
.com
/user
/backuspagemuseum
', 
2178             'upload_date
': '20161008', 
2179             'license
': 'Standard YouTube License
', 
2180             'description
': 'md5
:800c0c78d5eb128500bffd4f0b4f2e8a
', 
2181             'categories
': ['Nonprofits 
& Activism
'], 
2184             'dislike_count
': int, 
2188             'skip_download
': True, 
2191         'url
': 'https
://youtu
.be
/uWyaPkt
-VOI?
list=PL9D9FC436B881BA21
', 
2192         'only_matching
': True, 
2194         'url
': 'TLGGrESM50VT6acwMjAyMjAxNw
', 
2195         'only_matching
': True, 
2198     def _real_initialize(self): 
2201     def _extract_mix(self, playlist_id): 
2202         # The mixes are generated from a single video 
2203         # the id of the playlist is just 'RD
' + video_id 
2205         last_id = playlist_id[-11:] 
2206         for n in itertools.count(1): 
2207             url = 'https
://youtube
.com
/watch?v
=%s&list=%s' % (last_id, playlist_id) 
2208             webpage = self._download_webpage( 
2209                 url, playlist_id, 'Downloading page {0} of Youtube mix
'.format(n)) 
2210             new_ids = orderedSet(re.findall( 
2211                 r'''(?xs)data-video-username=".*?".*? 
2212                            href="/watch\?v=([0-9A-Za-z_-]{11})&[^"]*?list=%s''' % re.escape(playlist_id), 
2214             # Fetch new pages until all the videos are repeated, it seems that 
2215             # there are always 51 unique videos. 
2216             new_ids = [_id for _id in new_ids if _id not in ids] 
2222         url_results = self._ids_to_results(ids) 
2224         search_title = lambda class_name: get_element_by_attribute('class', class_name, webpage) 
2226             search_title('playlist
-title
') or 
2227             search_title('title 
long-title
') or 
2228             search_title('title
')) 
2229         title = clean_html(title_span) 
2231         return self.playlist_result(url_results, playlist_id, title) 
2233     def _extract_playlist(self, playlist_id): 
2234         url = self._TEMPLATE_URL % playlist_id 
2235         page = self._download_webpage(url, playlist_id) 
2237         # the yt-alert-message now has tabindex attribute (see https://github.com/rg3/youtube-dl/issues/11604) 
2238         for match in re.findall(r'<div 
class="yt-alert-message"[^
>]*>([^
<]+)</div
>', page): 
2239             match = match.strip() 
2240             # Check if the playlist exists or is private 
2241             mobj = re.match(r'[^
<]*(?
:The|This
) playlist (?P
<reason
>does 
not exist|
is private
)[^
<]*', match) 
2243                 reason = mobj.group('reason
') 
2244                 message = 'This playlist 
%s' % reason 
2245                 if 'private
' in reason: 
2246                     message += ', use 
--username 
or --netrc to access it
' 
2248                 raise ExtractorError(message, expected=True) 
2249             elif re.match(r'[^
<]*Invalid parameters
[^
<]*', match): 
2250                 raise ExtractorError( 
2251                     'Invalid parameters
. Maybe URL 
is incorrect
.', 
2253             elif re.match(r'[^
<]*Choose your language
[^
<]*', match): 
2256                 self.report_warning('Youtube gives an alert message
: ' + match) 
2258         playlist_title = self._html_search_regex( 
2259             r'(?s
)<h1 
class="pl-header-title[^"]*"[^>]*>\s*(.*?)\s*</h1>', 
2260             page, 'title', default=None) 
2264         if not playlist_title: 
2266                 # Some playlist URLs don't actually serve a playlist (e.g. 
2267                 # https://www.youtube.com/watch?v=FqZTN594JQw&list=PLMYEtVRpaqY00V9W81Cwmzp6N6vZqfUKD4) 
2268                 next(self._entries(page, playlist_id)) 
2269             except StopIteration: 
2272         return has_videos, self.playlist_result( 
2273             self._entries(page, playlist_id), playlist_id, playlist_title) 
2275     def _check_download_just_video(self, url, playlist_id): 
2276         # Check if it's a video-specific URL 
2277         query_dict = compat_urlparse.parse_qs(compat_urlparse.urlparse(url).query) 
2278         video_id = query_dict.get('v', [None])[0] or self._search_regex( 
2279             r'(?:(?:^|//)youtu\.be/|youtube\.com/embed/(?!videoseries))([0-9A-Za-z_-]{11})', url, 
2280             'video id', default=None) 
2282             if self._downloader.params.get('noplaylist'): 
2283                 self.to_screen('Downloading just video %s because of --no-playlist' % video_id) 
2284                 return video_id, self.url_result(video_id, 'Youtube', video_id=video_id) 
2286                 self.to_screen('Downloading playlist %s - add --no-playlist to just download video %s' % (playlist_id, video_id)) 
2287                 return video_id, None 
2290     def _real_extract(self, url): 
2291         # Extract playlist id 
2292         mobj = re.match(self._VALID_URL, url) 
2294             raise ExtractorError('Invalid URL: %s' % url) 
2295         playlist_id = mobj.group(1) or mobj.group(2) 
2297         video_id, video = self._check_download_just_video(url, playlist_id) 
2301         if playlist_id.startswith(('RD', 'UL', 'PU')): 
2302             # Mixes require a custom extraction process 
2303             return self._extract_mix(playlist_id) 
2305         has_videos, playlist = self._extract_playlist(playlist_id) 
2306         if has_videos or not video_id: 
2309         # Some playlist URLs don't actually serve a playlist (see 
2310         # https://github.com/rg3/youtube-dl/issues/10537). 
2311         # Fallback to plain video extraction if there is a video id 
2312         # along with playlist id. 
2313         return self.url_result(video_id, 'Youtube', video_id=video_id) 
2316 class YoutubeChannelIE(YoutubePlaylistBaseInfoExtractor): 
2317     IE_DESC = 'YouTube.com channels' 
2318     _VALID_URL = r'https?://(?:youtu\.be|(?:\w+\.)?youtube(?:-nocookie)?\.com)/channel/(?P<id>[0-9A-Za-z_-]+)' 
2319     _TEMPLATE_URL = 'https://www.youtube.com/channel/%s/videos' 
2320     _VIDEO_RE = r'(?:title="(?P
<title
>[^
"]+)"[^
>]+)?href
="/watch\?v=(?P<id>[0-9A-Za-z_-]+)&?' 
2321     IE_NAME = 'youtube:channel' 
2323         'note': 'paginated channel', 
2324         'url': 'https://www.youtube.com/channel/UCKfVa3S1e4PHvxWcwyMMg8w', 
2325         'playlist_mincount': 91, 
2327             'id': 'UUKfVa3S1e4PHvxWcwyMMg8w', 
2328             'title': 'Uploads from lex will', 
2331         'note': 'Age restricted channel', 
2332         # from https://www.youtube.com/user/DeusExOfficial 
2333         'url': 'https://www.youtube.com/channel/UCs0ifCMCm1icqRbqhUINa0w', 
2334         'playlist_mincount': 64, 
2336             'id': 'UUs0ifCMCm1icqRbqhUINa0w', 
2337             'title': 'Uploads from Deus Ex', 
2342     def suitable(cls, url): 
2343         return (False if YoutubePlaylistsIE.suitable(url) or YoutubeLiveIE.suitable(url) 
2344                 else super(YoutubeChannelIE, cls).suitable(url)) 
2346     def _build_template_url(self, url, channel_id): 
2347         return self._TEMPLATE_URL % channel_id 
2349     def _real_extract(self, url): 
2350         channel_id = self._match_id(url) 
2352         url = self._build_template_url(url, channel_id) 
2354         # Channel by page listing is restricted to 35 pages of 30 items, i.e. 1050 videos total (see #5778) 
2355         # Workaround by extracting as a playlist if managed to obtain channel playlist URL 
2356         # otherwise fallback on channel by page extraction 
2357         channel_page = self._download_webpage( 
2358             url + '?view=57', channel_id, 
2359             'Downloading channel page', fatal=False) 
2360         if channel_page is False: 
2361             channel_playlist_id = False 
2363             channel_playlist_id = self._html_search_meta( 
2364                 'channelId', channel_page, 'channel id', default=None) 
2365             if not channel_playlist_id: 
2366                 channel_url = self._html_search_meta( 
2367                     ('al:ios:url', 'twitter:app:url:iphone', 'twitter:app:url:ipad'), 
2368                     channel_page, 'channel url', default=None) 
2370                     channel_playlist_id = self._search_regex( 
2371                         r'vnd\.youtube://user/([0-9A-Za-z_-]+)', 
2372                         channel_url, 'channel id', default=None) 
2373         if channel_playlist_id and channel_playlist_id.startswith('UC'): 
2374             playlist_id = 'UU' + channel_playlist_id[2:] 
2375             return self.url_result( 
2376                 compat_urlparse.urljoin(url, '/playlist?list=%s' % playlist_id), 'YoutubePlaylist') 
2378         channel_page = self._download_webpage(url, channel_id, 'Downloading page #1') 
2379         autogenerated = re.search(r'''(?x) 
2381                     channel-header-autogenerated-label| 
2382                     yt-channel-title-autogenerated 
2383                 )[^"]*"''', channel_page) is not None 
2386             # The videos are contained in a single page 
2387             # the ajax pages can't be used, they are empty 
2390                     video_id, 'Youtube', video_id=video_id, 
2391                     video_title=video_title) 
2392                 for video_id, video_title in self.extract_videos_from_page(channel_page)] 
2393             return self.playlist_result(entries, channel_id) 
2396             next(self._entries(channel_page, channel_id)) 
2397         except StopIteration: 
2398             alert_message = self._html_search_regex( 
2399                 r'(?s)<div[^>]+class=(["\']).*?
\byt
-alert
-message
\b.*?\
1[^
>]*>(?P
<alert
>[^
<]+)</div
>', 
2400                 channel_page, 'alert
', default=None, group='alert
') 
2402                 raise ExtractorError('Youtube said
: %s' % alert_message, expected=True) 
2404         return self.playlist_result(self._entries(channel_page, channel_id), channel_id) 
2407 class YoutubeUserIE(YoutubeChannelIE): 
2408     IE_DESC = 'YouTube
.com user 
videos (URL 
or "ytuser" keyword
)' 
2409     _VALID_URL = r'(?
:(?
:https?
://(?
:\w
+\
.)?youtube\
.com
/(?
:(?P
<user
>user|c
)/)?
(?
!(?
:attribution_link|watch|results
)(?
:$|
[^a
-z_A
-Z0
-9-])))|ytuser
:)(?
!feed
/)(?P
<id>[A
-Za
-z0
-9_-]+)' 
2410     _TEMPLATE_URL = 'https
://www
.youtube
.com
/%s/%s/videos
' 
2411     IE_NAME = 'youtube
:user
' 
2414         'url
': 'https
://www
.youtube
.com
/user
/TheLinuxFoundation
', 
2415         'playlist_mincount
': 320, 
2417             'id': 'UUfX55Sx5hEFjoC3cNs6mCUQ
', 
2418             'title
': 'Uploads 
from The Linux Foundation
', 
2421         # Only available via https://www.youtube.com/c/12minuteathlete/videos 
2422         # but not https://www.youtube.com/user/12minuteathlete/videos 
2423         'url
': 'https
://www
.youtube
.com
/c
/12minuteathlete
/videos
', 
2424         'playlist_mincount
': 249, 
2426             'id': 'UUVjM
-zV6_opMDx7WYxnjZiQ
', 
2427             'title
': 'Uploads 
from 12 Minute Athlete
', 
2430         'url
': 'ytuser
:phihag
', 
2431         'only_matching
': True, 
2433         'url
': 'https
://www
.youtube
.com
/c
/gametrailers
', 
2434         'only_matching
': True, 
2436         'url
': 'https
://www
.youtube
.com
/gametrailers
', 
2437         'only_matching
': True, 
2439         # This channel is not available, geo restricted to JP 
2440         'url
': 'https
://www
.youtube
.com
/user
/kananishinoSMEJ
/videos
', 
2441         'only_matching
': True, 
2445     def suitable(cls, url): 
2446         # Don't 
return True if the url can be extracted 
with other youtube
 
2447         # extractor, the regex would is too permissive and it would match. 
2448         other_yt_ies 
= iter(klass 
for (name
, klass
) in globals().items() if name
.startswith('Youtube') and name
.endswith('IE') and klass 
is not cls
) 
2449         if any(ie
.suitable(url
) for ie 
in other_yt_ies
): 
2452             return super(YoutubeUserIE
, cls
).suitable(url
) 
2454     def _build_template_url(self
, url
, channel_id
): 
2455         mobj 
= re
.match(self
._VALID
_URL
, url
) 
2456         return self
._TEMPLATE
_URL 
% (mobj
.group('user') or 'user', mobj
.group('id')) 
2459 class YoutubeLiveIE(YoutubeBaseInfoExtractor
): 
2460     IE_DESC 
= 'YouTube.com live streams' 
2461     _VALID_URL 
= r
'(?P<base_url>https?://(?:\w+\.)?youtube\.com/(?:(?:user|channel|c)/)?(?P<id>[^/]+))/live' 
2462     IE_NAME 
= 'youtube:live' 
2465         'url': 'https://www.youtube.com/user/TheYoungTurks/live', 
2467             'id': 'a48o2S1cPoo', 
2469             'title': 'The Young Turks - Live Main Show', 
2470             'uploader': 'The Young Turks', 
2471             'uploader_id': 'TheYoungTurks', 
2472             'uploader_url': r
're:https?://(?:www\.)?youtube\.com/user/TheYoungTurks', 
2473             'upload_date': '20150715', 
2474             'license': 'Standard YouTube License', 
2475             'description': 'md5:438179573adcdff3c97ebb1ee632b891', 
2476             'categories': ['News & Politics'], 
2477             'tags': ['Cenk Uygur (TV Program Creator)', 'The Young Turks (Award-Winning Work)', 'Talk Show (TV Genre)'], 
2479             'dislike_count': int, 
2482             'skip_download': True, 
2485         'url': 'https://www.youtube.com/channel/UC1yBKRuGpC1tSM73A0ZjYjQ/live', 
2486         'only_matching': True, 
2488         'url': 'https://www.youtube.com/c/CommanderVideoHq/live', 
2489         'only_matching': True, 
2491         'url': 'https://www.youtube.com/TheYoungTurks/live', 
2492         'only_matching': True, 
2495     def _real_extract(self
, url
): 
2496         mobj 
= re
.match(self
._VALID
_URL
, url
) 
2497         channel_id 
= mobj
.group('id') 
2498         base_url 
= mobj
.group('base_url') 
2499         webpage 
= self
._download
_webpage
(url
, channel_id
, fatal
=False) 
2501             page_type 
= self
._og
_search
_property
( 
2502                 'type', webpage
, 'page type', default
=None) 
2503             video_id 
= self
._html
_search
_meta
( 
2504                 'videoId', webpage
, 'video id', default
=None) 
2505             if page_type 
== 'video' and video_id 
and re
.match(r
'^[0-9A-Za-z_-]{11}$', video_id
): 
2506                 return self
.url_result(video_id
, YoutubeIE
.ie_key()) 
2507         return self
.url_result(base_url
) 
2510 class YoutubePlaylistsIE(YoutubePlaylistsBaseInfoExtractor
): 
2511     IE_DESC 
= 'YouTube.com user/channel playlists' 
2512     _VALID_URL 
= r
'https?://(?:\w+\.)?youtube\.com/(?:user|channel)/(?P<id>[^/]+)/playlists' 
2513     IE_NAME 
= 'youtube:playlists' 
2516         'url': 'https://www.youtube.com/user/ThirstForScience/playlists', 
2517         'playlist_mincount': 4, 
2519             'id': 'ThirstForScience', 
2520             'title': 'Thirst for Science', 
2523         # with "Load more" button 
2524         'url': 'https://www.youtube.com/user/igorkle1/playlists?view=1&sort=dd', 
2525         'playlist_mincount': 70, 
2528             'title': 'ŠŠ³Š¾ŃŃ ŠŠ»ŠµŠ¹Š½ŠµŃ', 
2531         'url': 'https://www.youtube.com/channel/UCiU1dHvZObB2iP6xkJ__Icw/playlists', 
2532         'playlist_mincount': 17, 
2534             'id': 'UCiU1dHvZObB2iP6xkJ__Icw', 
2535             'title': 'Chem Player', 
2540 class YoutubeSearchIE(SearchInfoExtractor
, YoutubePlaylistIE
): 
2541     IE_DESC 
= 'YouTube.com searches' 
2542     # there doesn't appear to be a real limit, for example if you search for 
2543     # 'python' you get more than 8.000.000 results 
2544     _MAX_RESULTS 
= float('inf') 
2545     IE_NAME 
= 'youtube:search' 
2546     _SEARCH_KEY 
= 'ytsearch' 
2547     _EXTRA_QUERY_ARGS 
= {} 
2550     def _get_n_results(self
, query
, n
): 
2551         """Get a specified number of results for a query""" 
2557             'search_query': query
.encode('utf-8'), 
2559         url_query
.update(self
._EXTRA
_QUERY
_ARGS
) 
2560         result_url 
= 'https://www.youtube.com/results?' + compat_urllib_parse_urlencode(url_query
) 
2562         for pagenum 
in itertools
.count(1): 
2563             data 
= self
._download
_json
( 
2564                 result_url
, video_id
='query "%s"' % query
, 
2565                 note
='Downloading page %s' % pagenum
, 
2566                 errnote
='Unable to download API page', 
2567                 query
={'spf': 'navigate'}) 
2568             html_content 
= data
[1]['body']['content'] 
2570             if 'class="search-message' in html_content
: 
2571                 raise ExtractorError( 
2572                     '[youtube] No video results', expected
=True) 
2574             new_videos 
= self
._ids
_to
_results
(orderedSet(re
.findall( 
2575                 r
'href="/watch\?v=(.{11})', html_content
))) 
2576             videos 
+= new_videos
 
2577             if not new_videos 
or len(videos
) > limit
: 
2579             next_link 
= self
._html
_search
_regex
( 
2580                 r
'href="(/results\?[^"]*\bsp=[^"]+)"[^>]*>\s*<span[^>]+class="[^"]*\byt-uix-button-content\b[^"]*"[^>]*>Next', 
2581                 html_content
, 'next link', default
=None) 
2582             if next_link 
is None: 
2584             result_url 
= compat_urlparse
.urljoin('https://www.youtube.com/', next_link
) 
2588         return self
.playlist_result(videos
, query
) 
2591 class YoutubeSearchDateIE(YoutubeSearchIE
): 
2592     IE_NAME 
= YoutubeSearchIE
.IE_NAME 
+ ':date' 
2593     _SEARCH_KEY 
= 'ytsearchdate' 
2594     IE_DESC 
= 'YouTube.com searches, newest videos first' 
2595     _EXTRA_QUERY_ARGS 
= {'search_sort': 'video_date_uploaded'} 
2598 class YoutubeSearchURLIE(YoutubePlaylistBaseInfoExtractor
): 
2599     IE_DESC 
= 'YouTube.com search URLs' 
2600     IE_NAME 
= 'youtube:search_url' 
2601     _VALID_URL 
= r
'https?://(?:www\.)?youtube\.com/results\?(.*?&)?(?:search_query|q)=(?P<query>[^&]+)(?:[&]|$)' 
2602     _VIDEO_RE 
= r
'href="\s*/watch\?v=(?P<id>[0-9A-Za-z_-]{11})(?:[^"]*"[^>]+\btitle="(?P<title>[^"]+))?' 
2604         'url': 'https://www.youtube.com/results?baz=bar&search_query=youtube-dl+test+video&filters=video&lclk=video', 
2605         'playlist_mincount': 5, 
2607             'title': 'youtube-dl test video', 
2610         'url': 'https://www.youtube.com/results?q=test&sp=EgQIBBgB', 
2611         'only_matching': True, 
2614     def _real_extract(self
, url
): 
2615         mobj 
= re
.match(self
._VALID
_URL
, url
) 
2616         query 
= compat_urllib_parse_unquote_plus(mobj
.group('query')) 
2617         webpage 
= self
._download
_webpage
(url
, query
) 
2618         return self
.playlist_result(self
._process
_page
(webpage
), playlist_title
=query
) 
2621 class YoutubeShowIE(YoutubePlaylistsBaseInfoExtractor
): 
2622     IE_DESC 
= 'YouTube.com (multi-season) shows' 
2623     _VALID_URL 
= r
'https?://(?:www\.)?youtube\.com/show/(?P<id>[^?#]*)' 
2624     IE_NAME 
= 'youtube:show' 
2626         'url': 'https://www.youtube.com/show/airdisasters', 
2627         'playlist_mincount': 5, 
2629             'id': 'airdisasters', 
2630             'title': 'Air Disasters', 
2634     def _real_extract(self
, url
): 
2635         playlist_id 
= self
._match
_id
(url
) 
2636         return super(YoutubeShowIE
, self
)._real
_extract
( 
2637             'https://www.youtube.com/show/%s/playlists' % playlist_id
) 
2640 class YoutubeFeedsInfoExtractor(YoutubeBaseInfoExtractor
): 
2642     Base class for feed extractors 
2643     Subclasses must define the _FEED_NAME and _PLAYLIST_TITLE properties. 
2645     _LOGIN_REQUIRED 
= True 
2649         return 'youtube:%s' % self
._FEED
_NAME
 
2651     def _real_initialize(self
): 
2654     def _real_extract(self
, url
): 
2655         page 
= self
._download
_webpage
( 
2656             'https://www.youtube.com/feed/%s' % self
._FEED
_NAME
, self
._PLAYLIST
_TITLE
) 
2658         # The extraction process is the same as for playlists, but the regex 
2659         # for the video ids doesn't contain an index 
2661         more_widget_html 
= content_html 
= page
 
2662         for page_num 
in itertools
.count(1): 
2663             matches 
= re
.findall(r
'href="\s*/watch\?v=([0-9A-Za-z_-]{11})', content_html
) 
2665             # 'recommended' feed has infinite 'load more' and each new portion spins 
2666             # the same videos in (sometimes) slightly different order, so we'll check 
2667             # for unicity and break when portion has no new videos 
2668             new_ids 
= filter(lambda video_id
: video_id 
not in ids
, orderedSet(matches
)) 
2674             mobj 
= re
.search(r
'data-uix-load-more-href="/?(?P<more>[^"]+)"', more_widget_html
) 
2678             more 
= self
._download
_json
( 
2679                 'https://youtube.com/%s' % mobj
.group('more'), self
._PLAYLIST
_TITLE
, 
2680                 'Downloading page #%s' % page_num
, 
2681                 transform_source
=uppercase_escape
) 
2682             content_html 
= more
['content_html'] 
2683             more_widget_html 
= more
['load_more_widget_html'] 
2685         return self
.playlist_result( 
2686             self
._ids
_to
_results
(ids
), playlist_title
=self
._PLAYLIST
_TITLE
) 
2689 class YoutubeWatchLaterIE(YoutubePlaylistIE
): 
2690     IE_NAME 
= 'youtube:watchlater' 
2691     IE_DESC 
= 'Youtube watch later list, ":ytwatchlater" for short (requires authentication)' 
2692     _VALID_URL 
= r
'https?://(?:www\.)?youtube\.com/(?:feed/watch_later|(?:playlist|watch)\?(?:.+&)?list=WL)|:ytwatchlater' 
2695         'url': 'https://www.youtube.com/playlist?list=WL', 
2696         'only_matching': True, 
2698         'url': 'https://www.youtube.com/watch?v=bCNU9TrbiRk&index=1&list=WL', 
2699         'only_matching': True, 
2702     def _real_extract(self
, url
): 
2703         _
, video 
= self
._check
_download
_just
_video
(url
, 'WL') 
2706         _
, playlist 
= self
._extract
_playlist
('WL') 
2710 class YoutubeFavouritesIE(YoutubeBaseInfoExtractor
): 
2711     IE_NAME 
= 'youtube:favorites' 
2712     IE_DESC 
= 'YouTube.com favourite videos, ":ytfav" for short (requires authentication)' 
2713     _VALID_URL 
= r
'https?://(?:www\.)?youtube\.com/my_favorites|:ytfav(?:ou?rites)?' 
2714     _LOGIN_REQUIRED 
= True 
2716     def _real_extract(self
, url
): 
2717         webpage 
= self
._download
_webpage
('https://www.youtube.com/my_favorites', 'Youtube Favourites videos') 
2718         playlist_id 
= self
._search
_regex
(r
'list=(.+?)["&]', webpage
, 'favourites playlist id') 
2719         return self
.url_result(playlist_id
, 'YoutubePlaylist') 
2722 class YoutubeRecommendedIE(YoutubeFeedsInfoExtractor
): 
2723     IE_DESC 
= 'YouTube.com recommended videos, ":ytrec" for short (requires authentication)' 
2724     _VALID_URL 
= r
'https?://(?:www\.)?youtube\.com/feed/recommended|:ytrec(?:ommended)?' 
2725     _FEED_NAME 
= 'recommended' 
2726     _PLAYLIST_TITLE 
= 'Youtube Recommended videos' 
2729 class YoutubeSubscriptionsIE(YoutubeFeedsInfoExtractor
): 
2730     IE_DESC 
= 'YouTube.com subscriptions feed, "ytsubs" keyword (requires authentication)' 
2731     _VALID_URL 
= r
'https?://(?:www\.)?youtube\.com/feed/subscriptions|:ytsubs(?:criptions)?' 
2732     _FEED_NAME 
= 'subscriptions' 
2733     _PLAYLIST_TITLE 
= 'Youtube Subscriptions' 
2736 class YoutubeHistoryIE(YoutubeFeedsInfoExtractor
): 
2737     IE_DESC 
= 'Youtube watch history, ":ythistory" for short (requires authentication)' 
2738     _VALID_URL 
= r
'https?://(?:www\.)?youtube\.com/feed/history|:ythistory' 
2739     _FEED_NAME 
= 'history' 
2740     _PLAYLIST_TITLE 
= 'Youtube History' 
2743 class YoutubeTruncatedURLIE(InfoExtractor
): 
2744     IE_NAME 
= 'youtube:truncated_url' 
2745     IE_DESC 
= False  # Do not list 
2746     _VALID_URL 
= r
'''(?x) 
2748         (?:\w+\.)?[yY][oO][uU][tT][uU][bB][eE](?:-nocookie)?\.com/ 
2751             annotation_id=annotation_[^&]+| 
2757             attribution_link\?a=[^&]+ 
2763         'url': 'https://www.youtube.com/watch?annotation_id=annotation_3951667041', 
2764         'only_matching': True, 
2766         'url': 'https://www.youtube.com/watch?', 
2767         'only_matching': True, 
2769         'url': 'https://www.youtube.com/watch?x-yt-cl=84503534', 
2770         'only_matching': True, 
2772         'url': 'https://www.youtube.com/watch?feature=foo', 
2773         'only_matching': True, 
2775         'url': 'https://www.youtube.com/watch?hl=en-GB', 
2776         'only_matching': True, 
2778         'url': 'https://www.youtube.com/watch?t=2372', 
2779         'only_matching': True, 
2782     def _real_extract(self
, url
): 
2783         raise ExtractorError( 
2784             'Did you forget to quote the URL? Remember that & is a meta ' 
2785             'character in most shells, so you want to put the URL in quotes, ' 
2787             '"https://www.youtube.com/watch?feature=foo&v=BaW_jenozKc" ' 
2788             ' or simply  youtube-dl BaW_jenozKc  .', 
2792 class YoutubeTruncatedIDIE(InfoExtractor
): 
2793     IE_NAME 
= 'youtube:truncated_id' 
2794     IE_DESC 
= False  # Do not list 
2795     _VALID_URL 
= r
'https?://(?:www\.)?youtube\.com/watch\?v=(?P<id>[0-9A-Za-z_-]{1,10})$' 
2798         'url': 'https://www.youtube.com/watch?v=N_708QY7Ob', 
2799         'only_matching': True, 
2802     def _real_extract(self
, url
): 
2803         video_id 
= self
._match
_id
(url
) 
2804         raise ExtractorError( 
2805             'Incomplete YouTube ID %s. URL %s looks truncated.' % (video_id
, url
),