Merge 9680022207 into 1036478d13

* WEB URLs are, MWEB not
* resolves #33017

youtube_dl/extractor/extractors.py

@@ -1078,6 +1078,10 @@ from .rutube import (
     RutubePersonIE,
     RutubePlaylistIE,
 )
+from .glomex import (
+    GlomexIE,
+    GlomexEmbedIE,
+)
 from .rutv import RUTVIE
 from .ruutu import RuutuIE
 from .ruv import RuvIE

youtube_dl/extractor/generic.py

@@ -102,6 +102,7 @@ from .ustream import UstreamIE
 from .arte import ArteTVEmbedIE
 from .videopress import VideoPressIE
 from .rutube import RutubeIE
+from .glomex import GlomexEmbedIE
 from .limelight import LimelightBaseIE
 from .anvato import AnvatoIE
 from .washingtonpost import WashingtonPostIE
@@ -3400,6 +3401,12 @@ class GenericIE(InfoExtractor):
             return self.playlist_from_matches(
                 rutube_urls, video_id, video_title, ie=RutubeIE.ie_key())
 
+        # Look for Glomex embeds
+        glomex_urls = list(GlomexEmbedIE._extract_urls(webpage, url))
+        if glomex_urls:
+            return self.playlist_from_matches(
+                glomex_urls, video_id, video_title, ie=GlomexEmbedIE.ie_key())
+
         # Look for WashingtonPost embeds
         wapo_urls = WashingtonPostIE._extract_urls(webpage)
         if wapo_urls:

youtube_dl/extractor/glomex.py

@@ -0,0 +1,279 @@
+# coding: utf-8
+from __future__ import unicode_literals
+
+import re
+
+from .common import InfoExtractor
+from ..compat import (
+    compat_urllib_parse_urlparse,
+    compat_urllib_parse_urlencode,
+)
+from ..utils import (
+    ExtractorError,
+    determine_ext,
+    int_or_none,
+    try_get,
+    smuggle_url,
+    unsmuggle_url,
+    unescapeHTML,
+)
+
+
+class GlomexBaseIE(InfoExtractor):
+    _DEFAULT_ORIGIN_URL = 'https://player.glomex.com/'
+    _API_URL = 'https://integration-cloudfront-eu-west-1.mes.glomex.cloud/'
+
+    @staticmethod
+    def _smuggle_origin_url(url, origin_url):
+        return smuggle_url(url, {'origin': origin_url})
+
+    @classmethod
+    def _unsmuggle_origin_url(cls, url, fallback_origin_url=None):
+        defaults = {'origin': fallback_origin_url or cls._DEFAULT_ORIGIN_URL}
+        unsmuggled_url, data = unsmuggle_url(url, default=defaults)
+        return unsmuggled_url, data['origin']
+
+    def _get_videoid_type(self, video_id):
+        _VIDEOID_TYPES = {
+            'v': 'video',
+            'pl': 'playlist',
+            'rl': 'related videos playlist',
+            'cl': 'curated playlist',
+        }
+        prefix = video_id.split('-')[0]
+        return _VIDEOID_TYPES.get(prefix, 'unknown type')
+
+    def _download_api_data(self, video_id, integration, current_url=None):
+        query = {
+            'integration_id': integration,
+            'playlist_id': video_id,
+            'current_url': current_url or self._DEFAULT_ORIGIN_URL,
+        }
+        video_id_type = self._get_videoid_type(video_id)
+        return self._download_json(
+            self._API_URL,
+            video_id, 'Downloading %s JSON' % video_id_type,
+            'Unable to download %s JSON' % video_id_type,
+            query=query)
+
+    def _download_and_extract_api_data(self, video_id, integration, current_url):
+        api_data = self._download_api_data(video_id, integration, current_url)
+        videos = api_data['videos']
+        if not videos:
+            raise ExtractorError('no videos found for %s' % video_id)
+        if len(videos) == 1:
+            return self._extract_api_data(videos[0], video_id)
+        # assume some kind of playlist
+        videos = [
+            self._extract_api_data(video, video_id)
+            for video in videos
+        ]
+        return self.playlist_result(videos, video_id)
+
+    def _extract_api_data(self, video, video_id):
+        if video.get('error_code') == 'contentGeoblocked':
+            self.raise_geo_restricted(countries=video['geo_locations'])
+        info = self._extract_info(video, video_id)
+        info['formats'] = self._extract_formats(video, video_id)
+        return info
+
+    @staticmethod
+    def _extract_info(video, video_id=None, require_title=True):
+        title = video['title'] if require_title else video.get('title')
+
+        def append_image_url(url, default='profile:player-960x540'):
+            if url:
+                return '%s/%s' % (url, default)
+        thumbnail = append_image_url(try_get(video,
+                                             lambda x: x['image']['url']))
+        thumbnails = [
+            dict(width=960, height=540,
+                 **{k: append_image_url(v) if k == 'url' else v
+                    for k, v in image.items() if k in ('id', 'url')})
+            for image in video.get('images', [])
+        ] or None
+
+        return {
+            'id': video.get('clip_id') or video_id,
+            'title': title,
+            'description': video.get('description'),
+            'thumbnail': thumbnail,
+            'thumbnails': thumbnails,
+            'duration': int_or_none(video.get('clip_duration')),
+            'timestamp': video.get('created_at'),
+        }
+
+    def _extract_formats(self, options, video_id):
+        formats = []
+        for format_id, format_url in options['source'].items():
+            ext = determine_ext(format_url)
+            if ext == 'm3u8':
+                formats.extend(self._extract_m3u8_formats(
+                    format_url, video_id, 'mp4', m3u8_id=format_id,
+                    fatal=False))
+            else:
+                formats.append({
+                    'url': format_url,
+                    'format_id': format_id,
+                })
+        if options.get('language'):
+            for format in formats:
+                format['language'] = options.get('language')
+        self._sort_formats(formats)
+        return formats
+
+
+class GlomexIE(GlomexBaseIE):
+    IE_NAME = 'glomex'
+    IE_DESC = 'Glomex videos'
+    _VALID_URL = r'https?://video\.glomex\.com/[^/]+/(?P<id>v-[^-]+)'
+    # Hard-coded integration ID for video.glomex.com
+    _INTEGRATION_ID = '19syy24xjn1oqlpc'
+
+    _TEST = {
+        'url': 'https://video.glomex.com/sport/v-cb24uwg77hgh-nach-2-0-sieg-guardiola-mit-mancity-vor-naechstem-titel',
+        'md5': 'cec33a943c4240c9cb33abea8c26242e',
+        'info_dict': {
+            'id': 'v-cb24uwg77hgh',
+            'ext': 'mp4',
+            'title': 'md5:38a90cedcfadd72982c81acf13556e0c',
+            'description': 'md5:1ea6b6caff1443fcbbba159e432eedb8',
+            'duration': 29600,
+            'timestamp': 1619895017,
+            'upload_date': '20210501',
+            'age_limit': None,
+        },
+    }
+
+    def _real_extract(self, url):
+        video_id = self._match_id(url)
+        # Defer to glomex:embed IE: Build and return a player URL using the
+        # matched video ID and the hard-coded integration ID
+        return self.url_result(
+            GlomexEmbedIE.build_player_url(video_id, self._INTEGRATION_ID,
+                                           url),
+            GlomexEmbedIE.ie_key(),
+            video_id
+        )
+
+
+class GlomexEmbedIE(GlomexBaseIE):
+    IE_NAME = 'glomex:embed'
+    IE_DESC = 'Glomex embedded videos'
+    _BASE_PLAYER_URL = 'https://player.glomex.com/integration/1/iframe-player.html'
+    _VALID_URL = r'''(?x)https?://player\.glomex\.com/integration/[^/]+/iframe-player\.html
+        \?(?:(?:integrationId=(?P<integration>[^&#]+)|playlistId=(?P<id>[^&#]+)|[^&=#]+=[^&#]+)&?)+'''
+
+    _TESTS = [{
+        'url': 'https://player.glomex.com/integration/1/iframe-player.html?integrationId=4059a013k56vb2yd&playlistId=v-cfa6lye0dkdd-sf',
+        'info_dict': {
+            'id': 'v-cfa6lye0dkdd-sf',
+            'ext': 'mp4',
+            'timestamp': 1635337199,
+            'duration': 133080,
+            'upload_date': '20211027',
+            'description': 'md5:e741185fc309310ff5d0c789b437be66',
+            'title': 'md5:35647293513a6c92363817a0fb0a7961',
+        },
+        'params': {
+            'skip_download': True,
+        },
+    }, {
+        'url': 'https://player.glomex.com/integration/1/iframe-player.html?origin=fullpage&integrationId=19syy24xjn1oqlpc&playlistId=rl-vcb49w1fb592p&playlistIndex=0',
+        'info_dict': {
+            'id': 'rl-vcb49w1fb592p',
+        },
+        'playlist_count': 100,
+        'params': {
+            'skip_download': True,
+        },
+    }, {
+        'url': 'https://player.glomex.com/integration/1/iframe-player.html?playlistId=cl-bgqaata6aw8x&integrationId=19syy24xjn1oqlpc',
+        'info_dict': {
+            'id': 'cl-bgqaata6aw8x',
+        },
+        'playlist_mincount': 2,
+        'params': {
+            'skip_download': True,
+        },
+    }]
+
+    @classmethod
+    def build_player_url(cls, video_id, integration, origin_url=None):
+        query_string = compat_urllib_parse_urlencode({
+            'playlistId': video_id,
+            'integrationId': integration,
+        })
+        player_url = '%s?%s' % (cls._BASE_PLAYER_URL, query_string)
+        if origin_url is not None:
+            player_url = cls._smuggle_origin_url(player_url, origin_url)
+        return player_url
+
+    @classmethod
+    def _extract_urls(cls, webpage, origin_url):
+        # make the scheme in _VALID_URL optional
+        _URL_RE = r'(?:https?:)?//' + cls._VALID_URL.split('://', 1)[1]
+        # simplify the query string part of _VALID_URL; after extracting iframe
+        # src, the URL will be matched again
+        _URL_RE = _URL_RE.split(r'\?', 1)[0] + r'\?(?:(?!(?P=_q1)).)+'
+        # https://docs.glomex.com/publisher/video-player-integration/javascript-api/
+        EMBED_RE = r'''(?x)
+        (?:
+            <iframe[^>]+?src=(?P<_q1>%(quot_re)s)
+                (?P<url>%(url_re)s)(?P=_q1)|
+            <(?P<html_tag>glomex-player|div)(?:
+                data-integration-id=(?P<_q2>%(quot_re)s)(?P<integration_html>(?:(?!(?P=_q2)).)+)(?P=_q2)|
+                data-playlist-id=(?P<_q3>%(quot_re)s)(?P<id_html>(?:(?!(?P=_q3)).)+)(?P=_q3)|
+                data-glomex-player=(?P<_q4>%(quot_re)s)(?P<glomex_player>true)(?P=_q4)|
+                [^>]*?
+            )+>|
+            # naive parsing of inline scripts for hard-coded integration parameters
+            <(?P<script_tag>script)[^<]*?>(?:
+                (?P<_stjs1>dataset\.)?integrationId\s*(?(_stjs1)=|:)\s*
+                    (?P<_q5>%(quot_re)s)(?P<integration_js>(?:(?!(?P=_q5)).)+)(?P=_q5)\s*(?(_stjs1);|,)?|
+                (?P<_stjs2>dataset\.)?playlistId\s*(?(_stjs2)=|:)\s*
+                    (?P<_q6>%(quot_re)s)(?P<id_js>(?:(?!(?P=_q6)).)+)(?P=_q6)\s*(?(_stjs2);|,)?|
+                (?:\s|.)*?
+            )+</script>
+        )
+        ''' % {'quot_re': r'["\']', 'url_re': _URL_RE}
+        for mobj in re.finditer(EMBED_RE, webpage):
+            url, html_tag, video_id_html, integration_html, glomex_player, \
+                script_tag, video_id_js, integration_js = \
+                mobj.group('url', 'html_tag', 'id_html',
+                           'integration_html', 'glomex_player', 'script_tag',
+                           'id_js', 'integration_js')
+            if url:
+                url = unescapeHTML(url)
+                if url.startswith('//'):
+                    scheme = compat_urllib_parse_urlparse(origin_url).scheme \
+                        if origin_url else 'https'
+                    url = '%s:%s' % (scheme, url)
+                if not cls.suitable(url):
+                    continue
+                yield cls._smuggle_origin_url(url, origin_url)
+            elif html_tag:
+                if html_tag == "div" and not glomex_player:
+                    continue
+                if not video_id_html or not integration_html:
+                    continue
+                yield cls.build_player_url(video_id_html, integration_html,
+                                           origin_url)
+            elif script_tag:
+                if not video_id_js or not integration_js:
+                    continue
+                yield cls.build_player_url(video_id_js, integration_js,
+                                           origin_url)
+
+    def _real_extract(self, url):
+        url, origin_url = self._unsmuggle_origin_url(url)
+        # must return a valid match since it was already tested when selecting the IE
+        try:
+            matches = self._VALID_URL_RE.match(url).groupdict()
+        except AttributeError:
+            matches = re.match(self._VALID_URL, url).groupdict()
+        # id is not enforced in the pattern, so do it now; ditto integration
+        video_id = matches['id']
+        integration = matches['integration']
+        return self._download_and_extract_api_data(video_id, integration,
+                                                   origin_url)

youtube_dl/extractor/youtube.py

@@ -9,6 +9,7 @@ import json
 import os.path
 import random
 import re
+import string
 import time
 import traceback
 
@@ -67,6 +68,7 @@ from ..utils import (
 
 class YoutubeBaseInfoExtractor(InfoExtractor):
     """Provide base functions for Youtube extractors"""
+
     _LOGIN_URL = 'https://accounts.google.com/ServiceLogin'
     _TWOFACTOR_URL = 'https://accounts.google.com/signin/challenge'
 
@@ -138,7 +140,7 @@ class YoutubeBaseInfoExtractor(InfoExtractor):
                 [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],
-                1, [None, None, []], None, None, None, True
+                1, [None, None, []], None, None, None, True,
             ],
             username,
         ]
@@ -160,7 +162,7 @@ class YoutubeBaseInfoExtractor(InfoExtractor):
             None, 1, None, [1, None, None, None, [password, None, True]],
             [
                 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],
-                1, [None, None, []], None, None, None, True
+                1, [None, None, []], None, None, None, True,
             ]]
 
         challenge_results = req(
@@ -213,7 +215,7 @@ class YoutubeBaseInfoExtractor(InfoExtractor):
                     user_hash, None, 2, None,
                     [
                         9, None, None, None, None, None, None, None,
-                        [None, tfa_code, True, 2]
+                        [None, tfa_code, True, 2],
                     ]]
 
                 tfa_results = req(
@@ -284,7 +286,7 @@ class YoutubeBaseInfoExtractor(InfoExtractor):
             'client': {
                 'clientName': 'WEB',
                 'clientVersion': '2.20201021.03.00',
-            }
+            },
         },
     }
 
@@ -385,7 +387,7 @@ class YoutubeBaseInfoExtractor(InfoExtractor):
                 'client': {
                     'clientName': 'WEB',
                     'clientVersion': '2.20201021.03.00',
-                }
+                },
             },
             'query': query,
         }
@@ -462,7 +464,7 @@ class YoutubeBaseInfoExtractor(InfoExtractor):
             #       (HTML, videodetails, metadata, renderers)
             'name': ('content', 'author', (('ownerChannelName', None), 'title'), ['text']),
             'url': ('href', 'ownerProfileUrl', 'vanityChannelUrl',
-                    ['navigationEndpoint', 'browseEndpoint', 'canonicalBaseUrl'])
+                    ['navigationEndpoint', 'browseEndpoint', 'canonicalBaseUrl']),
         }
         if any((videodetails, metadata, renderers)):
             result = (
@@ -671,7 +673,7 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
                 'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/8KVIDEO',
                 'description': '',
                 'uploader': '8KVIDEO',
-                'title': 'UHDTV TEST 8K VIDEO.mp4'
+                'title': 'UHDTV TEST 8K VIDEO.mp4',
             },
             'params': {
                 'youtube_include_dash_manifest': True,
@@ -711,7 +713,7 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
                 'uploader_url': r're:https?://(?:www\.)?youtube\.com/@theamazingatheist',
                 'title': 'Burning Everyone\'s Koran',
                 'description': 'SUBSCRIBE: http://www.youtube.com/saturninefilms \r\n\r\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',
-            }
+            },
         },
         # Age-gated videos
         {
@@ -839,7 +841,7 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
             },
             'expected_warnings': [
                 'DASH manifest missing',
-            ]
+            ],
         },
         # Olympics (https://github.com/ytdl-org/youtube-dl/issues/4431)
         {
@@ -1820,8 +1822,8 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
 
         # cpn generation algorithm is reverse engineered from base.js.
         # In fact it works even with dummy cpn.
-        CPN_ALPHABET = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-_'
-        cpn = ''.join(CPN_ALPHABET[random.randint(0, 256) & 63] for _ in range(0, 16))
+        CPN_ALPHABET = string.ascii_letters + string.digits + '-_'
+        cpn = ''.join(CPN_ALPHABET[random.randint(0, 256) & 63] for _ in range(16))
 
         # more consistent results setting it to right before the end
         qs = parse_qs(playback_url)
@@ -1881,8 +1883,7 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
         mobj = re.match(cls._VALID_URL, url, re.VERBOSE)
         if mobj is None:
             raise ExtractorError('Invalid URL: %s' % url)
-        video_id = mobj.group(2)
-        return video_id
+        return mobj.group(2)
 
     def _extract_chapters_from_json(self, data, video_id, duration):
         chapters_list = try_get(
@@ -2035,7 +2036,7 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
             headers = {
                 'X-YouTube-Client-Name': '85',
                 'X-YouTube-Client-Version': '2.0',
-                'Origin': 'https://www.youtube.com'
+                'Origin': 'https://www.youtube.com',
             }
 
             video_info = self._call_api('player', query, video_id, fatal=False, headers=headers)
@@ -2064,8 +2065,8 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
             return ''.join([r['text'] for r in runs if isinstance(r.get('text'), compat_str)])
 
         search_meta = (
-            lambda x: self._html_search_meta(x, webpage, default=None)) \
-            if webpage else lambda x: None
+            (lambda x: self._html_search_meta(x, webpage, default=None))
+            if webpage else lambda _: None)
 
         video_details = player_response.get('videoDetails') or {}
         microformat = try_get(
@@ -2137,7 +2138,7 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
         def build_fragments(f):
             return LazyList({
                 'url': update_url_query(f['url'], {
-                    'range': '{0}-{1}'.format(range_start, min(range_start + CHUNK_SIZE - 1, f['filesize']))
+                    'range': '{0}-{1}'.format(range_start, min(range_start + CHUNK_SIZE - 1, f['filesize'])),
                 })
             } for range_start in range(0, f['filesize'], CHUNK_SIZE))
 
@@ -2236,7 +2237,7 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
                     'protocol': 'http_dash_segments',
                     'fragments': build_fragments(dct),
                 } if dct['filesize'] else {
-                    'downloader_options': {'http_chunk_size': CHUNK_SIZE}  # No longer useful?
+                    'downloader_options': {'http_chunk_size': CHUNK_SIZE},  # No longer useful?
                 })
 
             formats.append(dct)
@@ -2414,9 +2415,9 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
             'is_live': is_live,
         }
 
-        pctr = try_get(
+        pctr = traverse_obj(
             player_response,
-            lambda x: x['captions']['playerCaptionsTracklistRenderer'], dict)
+            ('captions', 'playerCaptionsTracklistRenderer', T(dict)))
         if pctr:
             def process_language(container, base_url, lang_code, query):
                 lang_subs = []
@@ -2430,31 +2431,34 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
                     })
                 container[lang_code] = lang_subs
 
-            subtitles = {}
-            for caption_track in (pctr.get('captionTracks') or []):
-                base_url = caption_track.get('baseUrl')
-                if not base_url:
-                    continue
-                if caption_track.get('kind') != 'asr':
-                    lang_code = caption_track.get('languageCode')
-                    if not lang_code:
+            def process_subtitles():
+                subtitles = {}
+                for caption_track in traverse_obj(pctr, (
+                        'captionTracks', lambda _, v: v.get('baseUrl'))):
+                    base_url = self._yt_urljoin(caption_track['baseUrl'])
+                    if not base_url:
                         continue
-                    process_language(
-                        subtitles, base_url, lang_code, {})
-                    continue
-                automatic_captions = {}
-                for translation_language in (pctr.get('translationLanguages') or []):
-                    translation_language_code = translation_language.get('languageCode')
-                    if not translation_language_code:
+                    if caption_track.get('kind') != 'asr':
+                        lang_code = caption_track.get('languageCode')
+                        if not lang_code:
+                            continue
+                        process_language(
+                            subtitles, base_url, lang_code, {})
                         continue
-                    process_language(
-                        automatic_captions, base_url, translation_language_code,
-                        {'tlang': translation_language_code})
-                info['automatic_captions'] = automatic_captions
-            info['subtitles'] = subtitles
+                    automatic_captions = {}
+                    for translation_language in traverse_obj(pctr, (
+                            'translationLanguages', lambda _, v: v.get('languageCode'))):
+                        translation_language_code = translation_language['languageCode']
+                        process_language(
+                            automatic_captions, base_url, translation_language_code,
+                            {'tlang': translation_language_code})
+                    info['automatic_captions'] = automatic_captions
+                info['subtitles'] = subtitles
+
+            process_subtitles()
 
         parsed_url = compat_urllib_parse_urlparse(url)
-        for component in [parsed_url.fragment, parsed_url.query]:
+        for component in (parsed_url.fragment, parsed_url.query):
             query = compat_parse_qs(component)
             for k, v in query.items():
                 for d_k, s_ks in [('start', ('start', 't')), ('end', ('end',))]:
@@ -2684,7 +2688,7 @@ class YoutubeTabIE(YoutubeBaseInfoExtractor):
             'title': 'Super Cooper Shorts - Shorts',
             'uploader': 'Super Cooper Shorts',
             'uploader_id': '@SuperCooperShorts',
-        }
+        },
     }, {
         # Channel that does not have a Shorts tab. Test should just download videos on Home tab instead
         'url': 'https://www.youtube.com/@emergencyawesome/shorts',
@@ -2738,7 +2742,7 @@ class YoutubeTabIE(YoutubeBaseInfoExtractor):
             'description': 'md5:609399d937ea957b0f53cbffb747a14c',
             'uploader': 'ThirstForScience',
             'uploader_id': '@ThirstForScience',
-        }
+        },
     }, {
         'url': 'https://www.youtube.com/c/ChristophLaimer/playlists',
         'only_matching': True,
@@ -3037,7 +3041,7 @@ class YoutubeTabIE(YoutubeBaseInfoExtractor):
             'uploader': '3Blue1Brown',
             'uploader_id': '@3blue1brown',
             'channel_id': 'UCYO_jab_esuFRV4b17AJtAw',
-        }
+        },
     }]
 
     @classmethod
@@ -3335,7 +3339,7 @@ class YoutubeTabIE(YoutubeBaseInfoExtractor):
             'client': {
                 'clientName': 'WEB',
                 'clientVersion': client_version,
-            }
+            },
         }
         visitor_data = try_get(context, lambda x: x['client']['visitorData'], compat_str)
 
@@ -3354,7 +3358,7 @@ class YoutubeTabIE(YoutubeBaseInfoExtractor):
                 headers['x-goog-visitor-id'] = visitor_data
             data['continuation'] = continuation['continuation']
             data['clickTracking'] = {
-                'clickTrackingParams': continuation['itct']
+                'clickTrackingParams': continuation['itct'],
             }
             count = 0
             retries = 3
@@ -3613,7 +3617,7 @@ class YoutubePlaylistIE(InfoExtractor):
             'uploader': 'milan',
             'uploader_id': '@milan5503',
             'channel_id': 'UCEI1-PVPcYXjB73Hfelbmaw',
-        }
+        },
     }, {
         'url': 'http://www.youtube.com/embed/_xDOZElKyNU?list=PLsyOSbh5bs16vubvKePAQ1x3PhKavfBIl',
         'playlist_mincount': 455,
@@ -3623,7 +3627,7 @@ class YoutubePlaylistIE(InfoExtractor):
             'uploader': 'LBK',
             'uploader_id': '@music_king',
             'channel_id': 'UC21nz3_MesPLqtDqwdvnoxA',
-        }
+        },
     }, {
         'url': 'TLGGrESM50VT6acwMjAyMjAxNw',
         'only_matching': True,
@@ -3734,7 +3738,7 @@ class YoutubeSearchIE(SearchInfoExtractor, YoutubeBaseInfoExtractor):
         'info_dict': {
             'id': 'youtube-dl test video',
             'title': 'youtube-dl test video',
-        }
+        },
     }]
 
     def _get_n_results(self, query, n):
@@ -3754,7 +3758,7 @@ class YoutubeSearchDateIE(YoutubeSearchIE):
         'info_dict': {
             'id': 'youtube-dl test video',
             'title': 'youtube-dl test video',
-        }
+        },
     }]
 
 
@@ -3769,7 +3773,7 @@ class YoutubeSearchURLIE(YoutubeBaseInfoExtractor):
             'id': 'youtube-dl test video',
             'title': 'youtube-dl test video',
         },
-        'params': {'playlistend': 5}
+        'params': {'playlistend': 5},
     }, {
         'url': 'https://www.youtube.com/results?q=test&sp=EgQIBBgB',
         'only_matching': True,
@@ -3785,6 +3789,7 @@ class YoutubeSearchURLIE(YoutubeBaseInfoExtractor):
 class YoutubeFeedsInfoExtractor(YoutubeTabIE):
     """
     Base class for feed extractors
+
     Subclasses must define the _FEED_NAME property.
     """
     _LOGIN_REQUIRED = True