[extractor] Document netrc machines

Closes #3169

devscripts/make_supportedsites.py

@@ -5,38 +5,19 @@ import sys
 
 sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
 
-import yt_dlp
+from yt_dlp.extractor import list_extractors
 
 
 def main():
     parser = optparse.OptionParser(usage='%prog OUTFILE.md')
-    options, args = parser.parse_args()
+    _, args = parser.parse_args()
     if len(args) != 1:
         parser.error('Expected an output filename')
 
-    outfile, = args
+    out = '\n'.join(ie.description() for ie in list_extractors(None) if ie.IE_DESC is not False)
 
-    def gen_ies_md(ies):
-        for ie in ies:
-            ie_md = f'**{ie.IE_NAME}**'
-            if ie.IE_DESC is False:
-                continue
-            if ie.IE_DESC is not None:
-                ie_md += f': {ie.IE_DESC}'
-            search_key = getattr(ie, 'SEARCH_KEY', None)
-            if search_key is not None:
-                ie_md += f'; "{ie.SEARCH_KEY}:" prefix'
-            if not ie.working():
-                ie_md += ' (Currently broken)'
-            yield ie_md
-
-    ies = sorted(yt_dlp.gen_extractors(), key=lambda i: i.IE_NAME.lower())
-    out = '# Supported sites\n' + ''.join(
-        ' - ' + md + '\n'
-        for md in gen_ies_md(ies))
-
-    with open(outfile, 'w', encoding='utf-8') as outf:
-        outf.write(out)
+    with open(args[0], 'w', encoding='utf-8') as outf:
+        outf.write(f'# Supported sites\n{out}\n')
 
 
 if __name__ == '__main__':

supportedsites.md

@@ -24,12 +24,12 @@
  - **abcnews:video**
  - **abcotvs**: ABC Owned Television Stations
  - **abcotvs:clips**
- - **AbemaTV**
+ - **AbemaTV**: [<abbr title="netrc machine"><em>abematv</em></abbr>]
  - **AbemaTVTitle**
  - **AcademicEarth:Course**
  - **acast**
  - **acast:channel**
- - **ADN**: Anime Digital Network
+ - **ADN**: [<abbr title="netrc machine"><em>animedigitalnetwork</em></abbr>] Anime Digital Network
  - **AdobeConnect**
  - **adobetv**
  - **adobetv:channel**
@@ -40,8 +40,8 @@
  - **aenetworks**: A+E Networks: A&E, Lifetime, History.com, FYI Network and History Vault
  - **aenetworks:collection**
  - **aenetworks:show**
- - **afreecatv**: afreecatv.com
- - **afreecatv:live**: afreecatv.com
+ - **afreecatv**: [<abbr title="netrc machine"><em>afreecatv</em></abbr>] afreecatv.com
+ - **afreecatv:live**: [<abbr title="netrc machine"><em>afreecatv</em></abbr>] afreecatv.com
  - **afreecatv:user**
  - **AirMozilla**
  - **AliExpressLive**
@@ -50,8 +50,8 @@
  - **AlphaPorno**
  - **Alsace20TV**
  - **Alsace20TVEmbed**
- - **Alura**
- - **AluraCourse**
+ - **Alura**: [<abbr title="netrc machine"><em>alura</em></abbr>]
+ - **AluraCourse**: [<abbr title="netrc machine"><em>aluracourse</em></abbr>]
  - **Amara**
  - **AmazonStore**
  - **AMCNetworks**
@@ -60,9 +60,9 @@
  - **AmHistoryChannel**
  - **anderetijden**: npo.nl, ntr.nl, omroepwnl.nl, zapp.nl and npo3.nl
  - **AnimalPlanet**
- - **AnimeLab**
- - **AnimeLabShows**
- - **AnimeOnDemand**
+ - **AnimeLab**: [<abbr title="netrc machine"><em>animelab</em></abbr>]
+ - **AnimeLabShows**: [<abbr title="netrc machine"><em>animelab</em></abbr>]
+ - **AnimeOnDemand**: [<abbr title="netrc machine"><em>animeondemand</em></abbr>]
  - **ant1newsgr:article**: ant1news.gr articles
  - **ant1newsgr:embed**: ant1news.gr embedded videos
  - **ant1newsgr:watch**: ant1news.gr videos
@@ -88,7 +88,7 @@
  - **ArteTVPlaylist**
  - **AsianCrush**
  - **AsianCrushPlaylist**
- - **AtresPlayer**
+ - **AtresPlayer**: [<abbr title="netrc machine"><em>atresplayer</em></abbr>]
  - **ATTTechChannel**
  - **ATVAt**
  - **AudiMedia**
@@ -114,13 +114,13 @@
  - **Bandcamp:weekly**
  - **bangumi.bilibili.com**: BiliBili番剧
  - **BannedVideo**
- - **bbc**: BBC
- - **bbc.co.uk**: BBC iPlayer
+ - **bbc**: [<abbr title="netrc machine"><em>bbc</em></abbr>] BBC
+ - **bbc.co.uk**: [<abbr title="netrc machine"><em>bbc</em></abbr>] BBC iPlayer
  - **bbc.co.uk:article**: BBC articles
  - **bbc.co.uk:iplayer:episodes**
  - **bbc.co.uk:iplayer:group**
  - **bbc.co.uk:playlist**
- - **BBVTV**
+ - **BBVTV**: [<abbr title="netrc machine"><em>bbvtv</em></abbr>]
  - **Beatport**
  - **Beeg**
  - **BehindKink**
@@ -142,8 +142,9 @@
  - **BilibiliChannel**
  - **BiliBiliPlayer**
  - **BiliBiliSearch**: Bilibili video search; "bilisearch:" prefix
- - **BiliIntl**
- - **BiliIntlSeries**
+ - **BiliIntl**: [<abbr title="netrc machine"><em>biliintl</em></abbr>]
+ - **BiliIntlSeries**: [<abbr title="netrc machine"><em>biliintl</em></abbr>]
+ - **BiliLive**
  - **BioBioChileTV**
  - **Biography**
  - **BIQLE**
@@ -252,10 +253,10 @@
  - **CrooksAndLiars**
  - **CrowdBunker**
  - **CrowdBunkerChannel**
- - **crunchyroll**
- - **crunchyroll:beta**
- - **crunchyroll:playlist**
- - **crunchyroll:playlist:beta**
+ - **crunchyroll**: [<abbr title="netrc machine"><em>crunchyroll</em></abbr>]
+ - **crunchyroll:beta**: [<abbr title="netrc machine"><em>crunchyroll</em></abbr>]
+ - **crunchyroll:playlist**: [<abbr title="netrc machine"><em>crunchyroll</em></abbr>]
+ - **crunchyroll:playlist:beta**: [<abbr title="netrc machine"><em>crunchyroll</em></abbr>]
  - **CSpan**: C-SPAN
  - **CSpanCongress**
  - **CtsNews**: 華視新聞
@@ -263,18 +264,18 @@
  - **CTVNews**
  - **cu.ntv.co.jp**: Nippon Television Network
  - **CultureUnplugged**
- - **curiositystream**
- - **curiositystream:collections**
- - **curiositystream:series**
+ - **curiositystream**: [<abbr title="netrc machine"><em>curiositystream</em></abbr>]
+ - **curiositystream:collections**: [<abbr title="netrc machine"><em>curiositystream</em></abbr>]
+ - **curiositystream:series**: [<abbr title="netrc machine"><em>curiositystream</em></abbr>]
  - **CWTV**
- - **Cybrary**
- - **CybraryCourse**
+ - **Cybrary**: [<abbr title="netrc machine"><em>cybrary</em></abbr>]
+ - **CybraryCourse**: [<abbr title="netrc machine"><em>cybrary</em></abbr>]
  - **Daftsex**
  - **DagelijkseKost**: dagelijksekost.een.be
  - **DailyMail**
- - **dailymotion**
- - **dailymotion:playlist**
- - **dailymotion:user**
+ - **dailymotion**: [<abbr title="netrc machine"><em>dailymotion</em></abbr>]
+ - **dailymotion:playlist**: [<abbr title="netrc machine"><em>dailymotion</em></abbr>]
+ - **dailymotion:user**: [<abbr title="netrc machine"><em>dailymotion</em></abbr>]
  - **damtomo:record**
  - **damtomo:video**
  - **daum.net**
@@ -291,7 +292,7 @@
  - **DestinationAmerica**
  - **DHM**: Filmarchiv - Deutsches Historisches Museum
  - **Digg**
- - **DigitalConcertHall**: DigitalConcertHall extractor
+ - **DigitalConcertHall**: [<abbr title="netrc machine"><em>digitalconcerthall</em></abbr>] DigitalConcertHall extractor
  - **DigitallySpeaking**
  - **Digiteka**
  - **Discovery**
@@ -315,7 +316,7 @@
  - **DRBonanza**
  - **Drooble**
  - **Dropbox**
- - **Dropout**
+ - **Dropout**: [<abbr title="netrc machine"><em>dropout</em></abbr>]
  - **DropoutSeason**
  - **DrTuber**
  - **drtv**
@@ -334,7 +335,7 @@
  - **egghead:lesson**: egghead.io lesson
  - **ehftv**
  - **eHow**
- - **EinsUndEinsTV**
+ - **EinsUndEinsTV**: [<abbr title="netrc machine"><em>1und1tv</em></abbr>]
  - **Einthusan**
  - **eitb.tv**
  - **EllenTube**
@@ -348,7 +349,7 @@
  - **Epicon**
  - **EpiconSeries**
  - **Eporner**
- - **EroProfile**
+ - **EroProfile**: [<abbr title="netrc machine"><em>eroprofile</em></abbr>]
  - **EroProfile:album**
  - **ertflix**: ERTFLIX videos
  - **ertflix:codename**: ERTFLIX videos by codename
@@ -361,17 +362,17 @@
  - **Europa**
  - **EuropeanTour**
  - **EUScreen**
- - **EWETV**
+ - **EWETV**: [<abbr title="netrc machine"><em>ewetv</em></abbr>]
  - **ExpoTV**
  - **Expressen**
  - **ExtremeTube**
  - **EyedoTV**
- - **facebook**
+ - **facebook**: [<abbr title="netrc machine"><em>facebook</em></abbr>]
  - **FacebookPluginsVideo**
- - **fancode:live**
- - **fancode:vod**
+ - **fancode:live**: [<abbr title="netrc machine"><em>fancode</em></abbr>]
+ - **fancode:vod**: [<abbr title="netrc machine"><em>fancode</em></abbr>]
  - **faz.net**
- - **fc2**
+ - **fc2**: [<abbr title="netrc machine"><em>fc2</em></abbr>]
  - **fc2:embed**
  - **fc2:live**
  - **Fczenit**
@@ -401,19 +402,19 @@
  - **FranceTVSite**
  - **Freesound**
  - **freespeech.org**
- - **FrontendMasters**
- - **FrontendMastersCourse**
- - **FrontendMastersLesson**
+ - **FrontendMasters**: [<abbr title="netrc machine"><em>frontendmasters</em></abbr>]
+ - **FrontendMastersCourse**: [<abbr title="netrc machine"><em>frontendmasters</em></abbr>]
+ - **FrontendMastersLesson**: [<abbr title="netrc machine"><em>frontendmasters</em></abbr>]
  - **FujiTVFODPlus7**
- - **Funimation**
- - **funimation:page**
- - **funimation:show**
+ - **Funimation**: [<abbr title="netrc machine"><em>funimation</em></abbr>]
+ - **funimation:page**: [<abbr title="netrc machine"><em>funimation</em></abbr>]
+ - **funimation:show**: [<abbr title="netrc machine"><em>funimation</em></abbr>]
  - **Funk**
  - **Fusion**
  - **Fux**
  - **Gab**
  - **GabTV**
- - **Gaia**
+ - **Gaia**: [<abbr title="netrc machine"><em>gaia</em></abbr>]
  - **GameInformer**
  - **GameJolt**
  - **GameJoltCommunity**
@@ -425,9 +426,9 @@
  - **GameStar**
  - **Gaskrank**
  - **Gazeta**
- - **GDCVault**
+ - **GDCVault**: [<abbr title="netrc machine"><em>gdcvault</em></abbr>]
  - **GediDigital**
- - **gem.cbc.ca**
+ - **gem.cbc.ca**: [<abbr title="netrc machine"><em>cbcgem</em></abbr>]
  - **gem.cbc.ca:live**
  - **gem.cbc.ca:playlist**
  - **generic**: Generic downloader that works on some sites
@@ -436,9 +437,9 @@
  - **Gfycat**
  - **GiantBomb**
  - **Giga**
- - **GlattvisionTV**
+ - **GlattvisionTV**: [<abbr title="netrc machine"><em>glattvisiontv</em></abbr>]
  - **Glide**: Glide mobile video messages (glide.me)
- - **Globo**
+ - **Globo**: [<abbr title="netrc machine"><em>globo</em></abbr>]
  - **GloboArticle**
  - **glomex**: Glomex videos
  - **glomex:embed**: Glomex embedded videos
@@ -466,7 +467,7 @@
  - **hgtv.com:show**
  - **HGTVDe**
  - **HGTVUsa**
- - **HiDive**
+ - **HiDive**: [<abbr title="netrc machine"><em>hidive</em></abbr>]
  - **HistoricFilms**
  - **history:player**
  - **history:topic**: History.com Topic
@@ -481,8 +482,8 @@
  - **Howcast**
  - **HowStuffWorks**
  - **hrfernsehen**
- - **HRTi**
- - **HRTiPlaylist**
+ - **HRTi**: [<abbr title="netrc machine"><em>hrti</em></abbr>]
+ - **HRTiPlaylist**: [<abbr title="netrc machine"><em>hrti</em></abbr>]
  - **HSEProduct**
  - **HSEShow**
  - **Huajiao**: 花椒直播
@@ -506,19 +507,19 @@
  - **Inc**
  - **IndavideoEmbed**
  - **InfoQ**
- - **Instagram**
- - **instagram:story**
- - **instagram:tag**: Instagram hashtag search URLs
- - **instagram:user**: Instagram user profile
+ - **Instagram**: [<abbr title="netrc machine"><em>instagram</em></abbr>]
+ - **instagram:story**: [<abbr title="netrc machine"><em>instagram</em></abbr>]
+ - **instagram:tag**: [<abbr title="netrc machine"><em>instagram</em></abbr>] Instagram hashtag search URLs
+ - **instagram:user**: [<abbr title="netrc machine"><em>instagram</em></abbr>] Instagram user profile
  - **InstagramIOS**: IOS instagram:// URL
  - **Internazionale**
  - **InternetVideoArchive**
  - **InvestigationDiscovery**
- - **IPrima**
+ - **IPrima**: [<abbr title="netrc machine"><em>iprima</em></abbr>]
  - **IPrimaCNN**
  - **iq.com**: International version of iQiyi
  - **iq.com:album**
- - **iqiyi**: 爱奇艺
+ - **iqiyi**: [<abbr title="netrc machine"><em>iqiyi</em></abbr>] 爱奇艺
  - **ITProTV**
  - **ITProTVCourse**
  - **ITTF**
@@ -576,9 +577,9 @@
  - **LcpPlay**
  - **Le**: 乐视网
  - **Lecture2Go**
- - **Lecturio**
- - **LecturioCourse**
- - **LecturioDeCourse**
+ - **Lecturio**: [<abbr title="netrc machine"><em>lecturio</em></abbr>]
+ - **LecturioCourse**: [<abbr title="netrc machine"><em>lecturio</em></abbr>]
+ - **LecturioDeCourse**: [<abbr title="netrc machine"><em>lecturio</em></abbr>]
  - **LEGO**
  - **Lemonde**
  - **Lenta**
@@ -592,10 +593,10 @@
  - **limelight:channel_list**
  - **LineLive**
  - **LineLiveChannel**
- - **LinkedIn**
- - **linkedin:learning**
- - **linkedin:learning:course**
- - **LinuxAcademy**
+ - **LinkedIn**: [<abbr title="netrc machine"><em>linkedin</em></abbr>]
+ - **linkedin:learning**: [<abbr title="netrc machine"><em>linkedin</em></abbr>]
+ - **linkedin:learning:course**: [<abbr title="netrc machine"><em>linkedin</em></abbr>]
+ - **LinuxAcademy**: [<abbr title="netrc machine"><em>linuxacademy</em></abbr>]
  - **LiTV**
  - **LiveJournal**
  - **livestream**
@@ -606,8 +607,8 @@
  - **LocalNews8**
  - **LoveHomePorn**
  - **lrt.lt**
- - **lynda**: lynda.com videos
- - **lynda:course**: lynda.com online courses
+ - **lynda**: [<abbr title="netrc machine"><em>lynda</em></abbr>] lynda.com videos
+ - **lynda:course**: [<abbr title="netrc machine"><em>lynda</em></abbr>] lynda.com online courses
  - **m6**
  - **MagentaMusik360**
  - **mailru**: Видео@Mail.Ru
@@ -674,7 +675,7 @@
  - **MLBVideo**
  - **MLSSoccer**
  - **Mnet**
- - **MNetTV**
+ - **MNetTV**: [<abbr title="netrc machine"><em>mnettv</em></abbr>]
  - **MoeVideo**: LetitBit video services: moevideo.net, playreplay.net and videochart.net
  - **Mofosex**
  - **MofosexEmbed**
@@ -746,8 +747,8 @@
  - **ndr:embed**
  - **ndr:embed:base**
  - **NDTV**
- - **Nebula**
- - **nebula:collection**
+ - **Nebula**: [<abbr title="netrc machine"><em>watchnebula</em></abbr>]
+ - **nebula:collection**: [<abbr title="netrc machine"><em>watchnebula</em></abbr>]
  - **NerdCubedFeed**
  - **netease:album**: 网易云音乐 - 专辑
  - **netease:djradio**: 网易云音乐 - 电台
@@ -756,7 +757,7 @@
  - **netease:program**: 网易云音乐 - 电台节目
  - **netease:singer**: 网易云音乐 - 歌手
  - **netease:song**: 网易云音乐
- - **NetPlus**
+ - **NetPlus**: [<abbr title="netrc machine"><em>netplus</em></abbr>]
  - **Netzkino**
  - **Newgrounds**
  - **Newgrounds:playlist**
@@ -770,8 +771,8 @@
  - **NexxEmbed**
  - **NFB**
  - **NFHSNetwork**
- - **nfl.com** (Currently broken)
- - **nfl.com:article** (Currently broken)
+ - **nfl.com**: (**Currently broken**)
+ - **nfl.com:article**: (**Currently broken**)
  - **NhkForSchoolBangumi**
  - **NhkForSchoolProgramList**
  - **NhkForSchoolSubject**: Portal page for each school subjects, like Japanese (kokugo, 国語) or math (sansuu/suugaku or 算数・数学)
@@ -783,7 +784,7 @@
  - **nickelodeon:br**
  - **nickelodeonru**
  - **nicknight**
- - **niconico**: ニコニコ動画
+ - **niconico**: [<abbr title="netrc machine"><em>niconico</em></abbr>] ニコニコ動画
  - **niconico:history**: NicoNico user history. Requires cookies.
  - **niconico:playlist**
  - **niconico:series**
@@ -796,7 +797,7 @@
  - **Nitter**
  - **njoy**: N-JOY
  - **njoy:embed**
- - **NJPWWorld**: 新日本プロレスワールド
+ - **NJPWWorld**: [<abbr title="netrc machine"><em>njpwworld</em></abbr>] 新日本プロレスワールド
  - **NobelPrize**
  - **NonkTube**
  - **NoodleMagazine**
@@ -869,9 +870,9 @@
  - **orf:tvthek**: ORF TVthek
  - **orf:vorarlberg**: Radio Vorarlberg
  - **orf:wien**: Radio Wien
- - **OsnatelTV**
+ - **OsnatelTV**: [<abbr title="netrc machine"><em>osnateltv</em></abbr>]
  - **OutsideTV**
- - **PacktPub**
+ - **PacktPub**: [<abbr title="netrc machine"><em>packtpub</em></abbr>]
  - **PacktPubCourse**
  - **PalcoMP3:artist**
  - **PalcoMP3:song**
@@ -893,7 +894,7 @@
  - **peer.tv**
  - **PeerTube**
  - **PeerTube:Playlist**
- - **peloton**
+ - **peloton**: [<abbr title="netrc machine"><em>peloton</em></abbr>]
  - **peloton:live**: Peloton Live
  - **People**
  - **PerformGroup**
@@ -902,7 +903,7 @@
  - **PhilharmonieDeParis**: Philharmonie de Paris
  - **phoenix.de**
  - **Photobucket**
- - **Piapro**
+ - **Piapro**: [<abbr title="netrc machine"><em>piapro</em></abbr>]
  - **Picarto**
  - **PicartoVod**
  - **Piksel**
@@ -913,26 +914,26 @@
  - **pixiv:sketch:user**
  - **Pladform**
  - **PlanetMarathi**
- - **Platzi**
- - **PlatziCourse**
+ - **Platzi**: [<abbr title="netrc machine"><em>platzi</em></abbr>]
+ - **PlatziCourse**: [<abbr title="netrc machine"><em>platzi</em></abbr>]
  - **play.fm**
  - **player.sky.it**
- - **PlayPlusTV**
+ - **PlayPlusTV**: [<abbr title="netrc machine"><em>playplustv</em></abbr>]
  - **PlayStuff**
  - **PlaysTV**
  - **Playtvak**: Playtvak.cz, iDNES.cz and Lidovky.cz
  - **Playvid**
  - **PlayVids**
  - **Playwire**
- - **pluralsight**
+ - **pluralsight**: [<abbr title="netrc machine"><em>pluralsight</em></abbr>]
  - **pluralsight:course**
  - **PlutoTV**
  - **podomatic**
  - **Pokemon**
  - **PokemonSoundLibrary**
  - **PokemonWatch**
- - **PokerGo**
- - **PokerGoCollection**
+ - **PokerGo**: [<abbr title="netrc machine"><em>pokergo</em></abbr>]
+ - **PokerGoCollection**: [<abbr title="netrc machine"><em>pokergo</em></abbr>]
  - **PolsatGo**
  - **PolskieRadio**
  - **polskieradio:kierowcow**
@@ -947,11 +948,11 @@
  - **Pornez**
  - **PornFlip**
  - **PornHd**
- - **PornHub**: PornHub and Thumbzilla
- - **PornHubPagedVideoList**
- - **PornHubPlaylist**
- - **PornHubUser**
- - **PornHubUserVideosUpload**
+ - **PornHub**: [<abbr title="netrc machine"><em>pornhub</em></abbr>] PornHub and Thumbzilla
+ - **PornHubPagedVideoList**: [<abbr title="netrc machine"><em>pornhub</em></abbr>]
+ - **PornHubPlaylist**: [<abbr title="netrc machine"><em>pornhub</em></abbr>]
+ - **PornHubUser**: [<abbr title="netrc machine"><em>pornhub</em></abbr>]
+ - **PornHubUserVideosUpload**: [<abbr title="netrc machine"><em>pornhub</em></abbr>]
  - **Pornotube**
  - **PornoVoisines**
  - **PornoXO**
@@ -973,7 +974,7 @@
  - **qqmusic:playlist**: QQ音乐 - 歌单
  - **qqmusic:singer**: QQ音乐 - 歌手
  - **qqmusic:toplist**: QQ音乐 - 排行榜
- - **QuantumTV**
+ - **QuantumTV**: [<abbr title="netrc machine"><em>quantumtv</em></abbr>]
  - **Qub**
  - **R7**
  - **R7Article**
@@ -1029,8 +1030,8 @@
  - **Rokfin**
  - **rokfin:channel**
  - **rokfin:stack**
- - **RoosterTeeth**
- - **RoosterTeethSeries**
+ - **RoosterTeeth**: [<abbr title="netrc machine"><em>roosterteeth</em></abbr>]
+ - **RoosterTeethSeries**: [<abbr title="netrc machine"><em>roosterteeth</em></abbr>]
  - **RottenTomatoes**
  - **Rozhlas**
  - **RTBF**
@@ -1069,12 +1070,12 @@
  - **Ruutu**
  - **Ruv**
  - **ruv.is:spila**
- - **safari**: safaribooksonline.com online video
- - **safari:api**
- - **safari:course**: safaribooksonline.com online courses
+ - **safari**: [<abbr title="netrc machine"><em>safari</em></abbr>] safaribooksonline.com online video
+ - **safari:api**: [<abbr title="netrc machine"><em>safari</em></abbr>]
+ - **safari:course**: [<abbr title="netrc machine"><em>safari</em></abbr>] safaribooksonline.com online courses
  - **Saitosan**
- - **SAKTV**
- - **SaltTV**
+ - **SAKTV**: [<abbr title="netrc machine"><em>saktv</em></abbr>]
+ - **SaltTV**: [<abbr title="netrc machine"><em>salttv</em></abbr>]
  - **SampleFocus**
  - **Sapo**: SAPO Vídeos
  - **savefrom.net**
@@ -1086,8 +1087,8 @@
  - **ScreencastOMatic**
  - **ScrippsNetworks**
  - **scrippsnetworks:watch**
- - **SCTE**
- - **SCTECourse**
+ - **SCTE**: [<abbr title="netrc machine"><em>scte</em></abbr>]
+ - **SCTECourse**: [<abbr title="netrc machine"><em>scte</em></abbr>]
  - **Seeker**
  - **SenateGov**
  - **SenateISVP**
@@ -1096,7 +1097,7 @@
  - **Sexu**
  - **SeznamZpravy**
  - **SeznamZpravyArticle**
- - **Shahid**
+ - **Shahid**: [<abbr title="netrc machine"><em>shahid</em></abbr>]
  - **ShahidShow**
  - **Shared**: shared.sx
  - **ShemarooMe**
@@ -1121,15 +1122,15 @@
  - **Slutload**
  - **Snotr**
  - **Sohu**
- - **SonyLIV**
+ - **SonyLIV**: [<abbr title="netrc machine"><em>sonyliv</em></abbr>]
  - **SonyLIVSeries**
- - **soundcloud**
- - **soundcloud:playlist**
- - **soundcloud:related**
- - **soundcloud:search**: Soundcloud search; "scsearch:" prefix
- - **soundcloud:set**
- - **soundcloud:trackstation**
- - **soundcloud:user**
+ - **soundcloud**: [<abbr title="netrc machine"><em>soundcloud</em></abbr>]
+ - **soundcloud:playlist**: [<abbr title="netrc machine"><em>soundcloud</em></abbr>]
+ - **soundcloud:related**: [<abbr title="netrc machine"><em>soundcloud</em></abbr>]
+ - **soundcloud:search**: [<abbr title="netrc machine"><em>soundcloud</em></abbr>] Soundcloud search; "scsearch:" prefix
+ - **soundcloud:set**: [<abbr title="netrc machine"><em>soundcloud</em></abbr>]
+ - **soundcloud:trackstation**: [<abbr title="netrc machine"><em>soundcloud</em></abbr>]
+ - **soundcloud:user**: [<abbr title="netrc machine"><em>soundcloud</em></abbr>]
  - **SoundcloudEmbed**
  - **soundgasm**
  - **soundgasm:profile**
@@ -1190,13 +1191,13 @@
  - **Tass**
  - **TBS**
  - **TDSLifeway**
- - **Teachable**
- - **TeachableCourse**
+ - **Teachable**: [<abbr title="netrc machine"><em>teachable</em></abbr>]
+ - **TeachableCourse**: [<abbr title="netrc machine"><em>teachable</em></abbr>]
  - **teachertube**: teachertube.com videos
  - **teachertube:user:collection**: teachertube.com user and collection videos
  - **TeachingChannel**
  - **Teamcoco**
- - **TeamTreeHouse**
+ - **TeamTreeHouse**: [<abbr title="netrc machine"><em>teamtreehouse</em></abbr>]
  - **TechTalks**
  - **techtv.mit.edu**
  - **TedEmbed**
@@ -1218,8 +1219,8 @@
  - **TeleQuebecVideo**
  - **TeleTask**
  - **Telewebion**
- - **TennisTV**
- - **TenPlay**
+ - **TennisTV**: [<abbr title="netrc machine"><em>tennistv</em></abbr>]
+ - **TenPlay**: [<abbr title="netrc machine"><em>10play</em></abbr>]
  - **TF1**
  - **TFO**
  - **TheIntercept**
@@ -1250,10 +1251,10 @@
  - **Tokentube**
  - **Tokentube:channel**
  - **ToonGoggles**
- - **tou.tv**
+ - **tou.tv**: [<abbr title="netrc machine"><em>toutv</em></abbr>]
  - **Toypics**: Toypics video
  - **ToypicsUser**: Toypics user profile
- - **TrailerAddict** (Currently broken)
+ - **TrailerAddict**: (**Currently broken**)
  - **TravelChannel**
  - **Trilulilu**
  - **Trovo**
@@ -1264,9 +1265,9 @@
  - **TruNews**
  - **TruTV**
  - **Tube8**
- - **TubiTv**
+ - **TubiTv**: [<abbr title="netrc machine"><em>tubitv</em></abbr>]
  - **TubiTvShow**
- - **Tumblr**
+ - **Tumblr**: [<abbr title="netrc machine"><em>tumblr</em></abbr>]
  - **tunein:clip**
  - **tunein:program**
  - **tunein:station**
@@ -1314,23 +1315,23 @@
  - **TwitCasting**
  - **TwitCastingLive**
  - **TwitCastingUser**
- - **twitch:clips**
- - **twitch:stream**
- - **twitch:vod**
- - **TwitchCollection**
- - **TwitchVideos**
- - **TwitchVideosClips**
- - **TwitchVideosCollections**
+ - **twitch:clips**: [<abbr title="netrc machine"><em>twitch</em></abbr>]
+ - **twitch:stream**: [<abbr title="netrc machine"><em>twitch</em></abbr>]
+ - **twitch:vod**: [<abbr title="netrc machine"><em>twitch</em></abbr>]
+ - **TwitchCollection**: [<abbr title="netrc machine"><em>twitch</em></abbr>]
+ - **TwitchVideos**: [<abbr title="netrc machine"><em>twitch</em></abbr>]
+ - **TwitchVideosClips**: [<abbr title="netrc machine"><em>twitch</em></abbr>]
+ - **TwitchVideosCollections**: [<abbr title="netrc machine"><em>twitch</em></abbr>]
  - **twitter**
  - **twitter:amplify**
  - **twitter:broadcast**
  - **twitter:card**
  - **twitter:shortener**
- - **udemy**
- - **udemy:course**
+ - **udemy**: [<abbr title="netrc machine"><em>udemy</em></abbr>]
+ - **udemy:course**: [<abbr title="netrc machine"><em>udemy</em></abbr>]
  - **UDNEmbed**: 聯合影音
- - **UFCArabia**
- - **UFCTV**
+ - **UFCArabia**: [<abbr title="netrc machine"><em>ufcarabia</em></abbr>]
+ - **UFCTV**: [<abbr title="netrc machine"><em>ufctv</em></abbr>]
  - **ukcolumn**
  - **UKTVPlay**
  - **umg:de**: Universal Music Deutschland
@@ -1358,7 +1359,7 @@
  - **VevoPlaylist**
  - **VGTV**: VGTV, BTTV, FTV, Aftenposten and Aftonbladet
  - **vh1.com**
- - **vhx:embed**
+ - **vhx:embed**: [<abbr title="netrc machine"><em>vimeo</em></abbr>]
  - **Viafree**
  - **vice**
  - **vice:article**
@@ -1378,26 +1379,26 @@
  - **videomore:season**
  - **videomore:video**
  - **VideoPress**
- - **Vidio**
- - **VidioLive**
- - **VidioPremier**
+ - **Vidio**: [<abbr title="netrc machine"><em>vidio</em></abbr>]
+ - **VidioLive**: [<abbr title="netrc machine"><em>vidio</em></abbr>]
+ - **VidioPremier**: [<abbr title="netrc machine"><em>vidio</em></abbr>]
  - **VidLii**
- - **vier**: vier.be and vijf.be
+ - **vier**: [<abbr title="netrc machine"><em>vier</em></abbr>] vier.be and vijf.be
  - **vier:videos**
  - **viewlift**
  - **viewlift:embed**
  - **Viidea**
- - **viki**
- - **viki:channel**
- - **vimeo**
- - **vimeo:album**
- - **vimeo:channel**
- - **vimeo:group**
- - **vimeo:likes**: Vimeo user likes
- - **vimeo:ondemand**
- - **vimeo:review**: Review pages on vimeo
- - **vimeo:user**
- - **vimeo:watchlater**: Vimeo watch later list, "vimeowatchlater" keyword (requires authentication)
+ - **viki**: [<abbr title="netrc machine"><em>viki</em></abbr>]
+ - **viki:channel**: [<abbr title="netrc machine"><em>viki</em></abbr>]
+ - **vimeo**: [<abbr title="netrc machine"><em>vimeo</em></abbr>]
+ - **vimeo:album**: [<abbr title="netrc machine"><em>vimeo</em></abbr>]
+ - **vimeo:channel**: [<abbr title="netrc machine"><em>vimeo</em></abbr>]
+ - **vimeo:group**: [<abbr title="netrc machine"><em>vimeo</em></abbr>]
+ - **vimeo:likes**: [<abbr title="netrc machine"><em>vimeo</em></abbr>] Vimeo user likes
+ - **vimeo:ondemand**: [<abbr title="netrc machine"><em>vimeo</em></abbr>]
+ - **vimeo:review**: [<abbr title="netrc machine"><em>vimeo</em></abbr>] Review pages on vimeo
+ - **vimeo:user**: [<abbr title="netrc machine"><em>vimeo</em></abbr>]
+ - **vimeo:watchlater**: [<abbr title="netrc machine"><em>vimeo</em></abbr>] Vimeo watch later list, ":vimeowatchlater" keyword (requires authentication)
  - **Vimm:recording**
  - **Vimm:stream**
  - **Vimple**: Vimple - one-click video hosting
@@ -1405,15 +1406,15 @@
  - **vine:user**
  - **Viqeo**
  - **Viu**
- - **viu:ott**
+ - **viu:ott**: [<abbr title="netrc machine"><em>viu</em></abbr>]
  - **viu:playlist**
  - **Vivo**: vivo.sx
- - **vk**: VK
- - **vk:uservideos**: VK - User's Videos
- - **vk:wallpost**
- - **vlive**
- - **vlive:channel**
- - **vlive:post**
+ - **vk**: [<abbr title="netrc machine"><em>vk</em></abbr>] VK
+ - **vk:uservideos**: [<abbr title="netrc machine"><em>vk</em></abbr>] VK - User's Videos
+ - **vk:wallpost**: [<abbr title="netrc machine"><em>vk</em></abbr>]
+ - **vlive**: [<abbr title="netrc machine"><em>vlive</em></abbr>]
+ - **vlive:channel**: [<abbr title="netrc machine"><em>vlive</em></abbr>]
+ - **vlive:post**: [<abbr title="netrc machine"><em>vlive</em></abbr>]
  - **vm.tiktok**
  - **Vodlocker**
  - **VODPl**
@@ -1428,12 +1429,12 @@
  - **vpro**: npo.nl, ntr.nl, omroepwnl.nl, zapp.nl and npo3.nl
  - **Vrak**
  - **VRT**: VRT NWS, Flanders News, Flandern Info and Sporza
- - **VrtNU**: VrtNU.be
- - **vrv**
+ - **VrtNU**: [<abbr title="netrc machine"><em>vrtnu</em></abbr>] VrtNU.be
+ - **vrv**: [<abbr title="netrc machine"><em>vrv</em></abbr>]
  - **vrv:series**
  - **VShare**
  - **VTM**
- - **VTXTV**
+ - **VTXTV**: [<abbr title="netrc machine"><em>vtxtv</em></abbr>]
  - **VuClip**
  - **Vupload**
  - **VVVVID**
@@ -1442,7 +1443,7 @@
  - **Vzaar**
  - **Wakanim**
  - **Walla**
- - **WalyTV**
+ - **WalyTV**: [<abbr title="netrc machine"><em>walytv</em></abbr>]
  - **wasdtv:clip**
  - **wasdtv:record**
  - **wasdtv:stream**
@@ -1452,7 +1453,7 @@
  - **WatchBox**
  - **WatchIndianPorn**: Watch Indian Porn
  - **WDR**
- - **wdr:mobile** (Currently broken)
+ - **wdr:mobile**: (**Currently broken**)
  - **WDRElefant**
  - **WDRPage**
  - **web.archive:youtube**: web.archive.org saved youtube videos, "ytarchive:" prefix
@@ -1537,13 +1538,13 @@
  - **YoutubeLivestreamEmbed**: YouTube livestream embeds
  - **YoutubeYtBe**: youtu.be
  - **Zapiks**
- - **Zattoo**
- - **ZattooLive**
- - **ZattooMovies**
- - **ZattooRecordings**
+ - **Zattoo**: [<abbr title="netrc machine"><em>zattoo</em></abbr>]
+ - **ZattooLive**: [<abbr title="netrc machine"><em>zattoo</em></abbr>]
+ - **ZattooMovies**: [<abbr title="netrc machine"><em>zattoo</em></abbr>]
+ - **ZattooRecordings**: [<abbr title="netrc machine"><em>zattoo</em></abbr>]
  - **ZDF**
  - **ZDFChannel**
- - **Zee5**
+ - **Zee5**: [<abbr title="netrc machine"><em>zee5</em></abbr>]
  - **zee5:series**
  - **ZenYandex**
  - **ZenYandexChannel**

yt_dlp/__init__.py

@@ -5,14 +5,13 @@ __license__ = 'Public Domain'
 
 import itertools
 import os
-import random
 import re
 import sys
 
 from .compat import compat_getpass, compat_os_name, compat_shlex_quote
 from .cookies import SUPPORTED_BROWSERS, SUPPORTED_KEYRINGS
 from .downloader import FileDownloader
-from .extractor import gen_extractors, list_extractors
+from .extractor import list_extractors
 from .extractor.adobepass import MSO_INFO
 from .extractor.common import InfoExtractor
 from .options import parseOpts
@@ -75,29 +74,23 @@ def get_urls(urls, batchfile, verbose):
 
 
 def print_extractor_information(opts, urls):
+    out = ''
     if opts.list_extractors:
         for ie in list_extractors(opts.age_limit):
-            write_string(ie.IE_NAME + (' (CURRENTLY BROKEN)' if not ie.working() else '') + '\n', out=sys.stdout)
-            matchedUrls = [url for url in urls if ie.suitable(url)]
-            for mu in matchedUrls:
-                write_string('  ' + mu + '\n', out=sys.stdout)
+            out += ie.IE_NAME + (' (CURRENTLY BROKEN)' if not ie.working() else '') + '\n'
+            out += ''.join(f'  {url}\n' for url in filter(ie.suitable, urls))
     elif opts.list_extractor_descriptions:
-        for ie in list_extractors(opts.age_limit):
-            if not ie.working():
-                continue
-            if ie.IE_DESC is False:
-                continue
-            desc = ie.IE_DESC or ie.IE_NAME
-            if getattr(ie, 'SEARCH_KEY', None) is not None:
-                _SEARCHES = ('cute kittens', 'slithering pythons', 'falling cat', 'angry poodle', 'purple fish', 'running tortoise', 'sleeping bunny', 'burping cow')
-                _COUNTS = ('', '5', '10', 'all')
-                desc += f'; "{ie.SEARCH_KEY}:" prefix (Example: "{ie.SEARCH_KEY}{random.choice(_COUNTS)}:{random.choice(_SEARCHES)}")'
-            write_string(desc + '\n', out=sys.stdout)
+        _SEARCHES = ('cute kittens', 'slithering pythons', 'falling cat', 'angry poodle', 'purple fish', 'running tortoise', 'sleeping bunny', 'burping cow')
+        out = '\n'.join(
+            ie.description(markdown=False, search_examples=_SEARCHES)
+            for ie in list_extractors(opts.age_limit) if ie.working() and ie.IE_DESC is not False) + '\n'
     elif opts.ap_list_mso:
-        table = [[mso_id, mso_info['name']] for mso_id, mso_info in MSO_INFO.items()]
-        write_string('Supported TV Providers:\n' + render_table(['mso', 'mso name'], table) + '\n', out=sys.stdout)
+        out = 'Supported TV Providers:\n%s\n' % render_table(
+            ['mso', 'mso name'],
+            [[mso_id, mso_info['name']] for mso_id, mso_info in MSO_INFO.items()])
     else:
         return False
+    write_string(out, out=sys.stdout)
     return True
 
 
@@ -869,6 +862,7 @@ def main(argv=None):
         sys.exit(f'\nERROR: {e}')
 
 
+from .extractor import gen_extractors
 __all__ = [
     'main',
     'YoutubeDL',

yt_dlp/extractor/__init__.py

@@ -38,14 +38,10 @@ def gen_extractors():
 
 
 def list_extractors(age_limit):
-    """
-    Return a list of extractors that are suitable for the given age,
-    sorted by extractor ID.
-    """
-
-    return sorted(
-        filter(lambda ie: ie.is_suitable(age_limit), gen_extractors()),
-        key=lambda ie: ie.IE_NAME.lower())
+    """Return a list of extractors that are suitable for the given age, sorted by extractor name"""
+    return sorted(filter(
+        lambda ie: ie.is_suitable(age_limit),
+        gen_extractors()), key=lambda ie: ie.IE_NAME.lower())
 
 
 def get_info_extractor(ie_name):

yt_dlp/extractor/common.py

@@ -469,14 +469,18 @@ class InfoExtractor:
     _WORKING = True
     _NETRC_MACHINE = None
     IE_DESC = None
+    SEARCH_KEY = None
 
-    _LOGIN_HINTS = {
-        'any': 'Use --cookies, --cookies-from-browser, --username and --password, or --netrc to provide account credentials',
-        'cookies': (
-            'Use --cookies-from-browser or --cookies for the authentication. '
-            'See  https://github.com/ytdl-org/youtube-dl#how-do-i-pass-cookies-to-youtube-dl  for how to manually pass cookies'),
-        'password': 'Use --username and --password, or --netrc to provide account credentials',
-    }
+    def _login_hint(self, method=NO_DEFAULT, netrc=None):
+        password_hint = f'--username and --password, or --netrc ({netrc or self._NETRC_MACHINE}) to provide account credentials'
+        return {
+            None: '',
+            'any': f'Use --cookies, --cookies-from-browser, {password_hint}',
+            'password': f'Use {password_hint}',
+            'cookies': (
+                'Use --cookies-from-browser or --cookies for the authentication. '
+                'See  https://github.com/ytdl-org/youtube-dl#how-do-i-pass-cookies-to-youtube-dl  for how to manually pass cookies'),
+        }[method if method is not NO_DEFAULT else 'any' if self.supports_login() else 'cookies']
 
     def __init__(self, downloader=None):
         """Constructor. Receives an optional downloader (a YoutubeDL instance).
@@ -539,7 +543,7 @@ class InfoExtractor:
                 if username:
                     self._perform_login(username, password)
             elif self.get_param('username') and False not in (self.IE_DESC, self._NETRC_MACHINE):
-                self.report_warning(f'Login with password is not supported for this website. {self._LOGIN_HINTS["cookies"]}')
+                self.report_warning(f'Login with password is not supported for this website. {self._login_hint("cookies")}')
             self._real_initialize()
             self._ready = True
 
@@ -708,7 +712,7 @@ class InfoExtractor:
 
     @property
     def IE_NAME(self):
-        return compat_str(type(self).__name__[:-2])
+        return type(self).__name__[:-2]
 
     @staticmethod
     def __can_accept_status_code(err, expected_status):
@@ -1131,11 +1135,7 @@ class InfoExtractor:
                 self.get_param('ignore_no_formats_error') or self.get_param('wait_for_video')):
             self.report_warning(msg)
             return
-        if method is NO_DEFAULT:
-            method = 'any' if self.supports_login() else 'cookies'
-        if method is not None:
-            assert method in self._LOGIN_HINTS, 'Invalid login method'
-            msg = f'{msg}. {self._LOGIN_HINTS[method]}'
+        msg += format_field(self._login_hint(method), template='. %s')
         raise ExtractorError(msg, expected=True)
 
     def raise_geo_restricted(
@@ -3653,6 +3653,29 @@ class InfoExtractor:
             any_restricted = any_restricted or is_restricted
         return not any_restricted
 
+    def description(self, *, markdown=True, search_examples=None):
+        """Description of the extractor"""
+        desc = ''
+        if self._NETRC_MACHINE:
+            if markdown:
+                desc += f' [<abbr title="netrc machine"><em>{self._NETRC_MACHINE}</em></abbr>]'
+            else:
+                desc += f' [{self._NETRC_MACHINE}]'
+        if self.IE_DESC is False:
+            desc += ' [HIDDEN]'
+        elif self.IE_DESC:
+            desc += f' {self.IE_DESC}'
+        if self.SEARCH_KEY:
+            desc += f'; "{self.SEARCH_KEY}:" prefix'
+            if search_examples:
+                _COUNTS = ('', '5', '10', 'all')
+                desc += f' (Example: "{self.SEARCH_KEY}{random.choice(_COUNTS)}:{random.choice(search_examples)}")'
+        if not self.working():
+            desc += ' (**Currently broken**)' if markdown else ' (Currently broken)'
+
+        name = f' - **{self.IE_NAME}**' if markdown else self.IE_NAME
+        return f'{name}:{desc}' if desc else name
+
     def extract_subtitles(self, *args, **kwargs):
         if (self.get_param('writesubtitles', False)
                 or self.get_param('listsubtitles')):

yt_dlp/extractor/fujitv.py

@@ -45,7 +45,7 @@ class FujiTVFODPlus7IE(InfoExtractor):
         if token:
             json_info = self._download_json('https://fod-sp.fujitv.co.jp/apps/api/episode/detail/?ep_id=%s&is_premium=false' % video_id, video_id, headers={'x-authorization': f'Bearer {token.value}'}, fatal=False)
         else:
-            self.report_warning(f'The token cookie is needed to extract video metadata. {self._LOGIN_HINTS["cookies"]}')
+            self.report_warning(f'The token cookie is needed to extract video metadata. {self._login_hint("cookies")}')
         formats, subtitles = [], {}
         src_json = self._download_json(f'{self._BASE_URL}abrjson_v2/tv_android/{video_id}', video_id)
         for src in src_json['video_selector']:

yt_dlp/extractor/vimeo.py

@@ -1333,7 +1333,7 @@ class VimeoReviewIE(VimeoBaseInfoExtractor):
 
 class VimeoWatchLaterIE(VimeoChannelIE):
     IE_NAME = 'vimeo:watchlater'
-    IE_DESC = 'Vimeo watch later list, "vimeowatchlater" keyword (requires authentication)'
+    IE_DESC = 'Vimeo watch later list, ":vimeowatchlater" keyword (requires authentication)'
     _VALID_URL = r'https://vimeo\.com/(?:home/)?watchlater|:vimeowatchlater'
     _TITLE = 'Watch Later'
     _LOGIN_REQUIRED = True