$ streamlink https://www.twitch.tv/clip/GoodEndearingPassionfruitPMSTwin-QfRLYDPKlscgqt-4
[cli][info] Found matching plugin twitch for URL https://www.twitch.tv/clip/GoodEndearingPassionfruitPMSTwin-QfRLYDPKlscgqt-4
error: No playable streams found on this URL: https://www.twitch.tv/clip/GoodEndearingPassionfruitPMSTwin-QfRLYDPKlscgqt-4

$ ./script/test-plugin-urls.py twitch -r CHANNELNAME pgl_dota2
:: Finding streams for URL: https://clips.twitch.tv/GoodEndearingPassionfruitPMSTwin-QfRLYDPKlscgqt-4
:: Found streams: 360p30, 480p30, 720p60, 1080p60, worst, best
:: Finding streams for URL: https://player.twitch.tv/?parent=twitch.tv&channel=pgl_dota2
:: Found streams: audio_only, 160p, 360p, 480p, 720p, 720p60, 1080p60, worst, best
:: Finding streams for URL: https://player.twitch.tv/?parent=twitch.tv&video=1963401646
:: Found streams: audio, 160p, 360p, 480p, 720p, 720p60, 1080p60, worst, best
:: Finding streams for URL: https://player.twitch.tv/?parent=twitch.tv&video=1963401646&t=1h23m45s
:: Found streams: audio, 160p, 360p, 480p, 720p, 720p60, 1080p60, worst, best
:: Finding streams for URL: https://www.twitch.tv/clip/GoodEndearingPassionfruitPMSTwin-QfRLYDPKlscgqt-4
:: Found streams: 360p30, 480p30, 720p60, 1080p60, worst, best
:: Finding streams for URL: https://www.twitch.tv/dota2ti/v/1963401646
:: Found streams: audio, 160p, 360p, 480p, 720p, 720p60, 1080p60, worst, best
:: Finding streams for URL: https://www.twitch.tv/dota2ti/video/1963401646
:: Found streams: audio, 160p, 360p, 480p, 720p, 720p60, 1080p60, worst, best
:: Finding streams for URL: https://www.twitch.tv/lirik/clip/GoodEndearingPassionfruitPMSTwin-QfRLYDPKlscgqt-4
:: Found streams: 360p30, 480p30, 720p60, 1080p60, worst, best
:: Finding streams for URL: https://www.twitch.tv/pgl_dota2
:: Found streams: audio_only, 160p, 360p, 480p, 720p, 720p60, 1080p60, worst, best
:: Finding streams for URL: https://www.twitch.tv/pgl_dota2/
:: Found streams: audio_only, 160p, 360p, 480p, 720p, 720p60, 1080p60, worst, best
:: Finding streams for URL: https://www.twitch.tv/pgl_dota2/?
:: Found streams: audio_only, 160p, 360p, 480p, 720p, 720p60, 1080p60, worst, best
:: Finding streams for URL: https://www.twitch.tv/pgl_dota2?
:: Found streams: audio_only, 160p, 360p, 480p, 720p, 720p60, 1080p60, worst, best
:: Finding streams for URL: https://www.twitch.tv/videos/1963401646
:: Found streams: audio, 160p, 360p, 480p, 720p, 720p60, 1080p60, worst, best
:: Finding streams for URL: https://www.twitch.tv/videos/1963401646?t=1h23m45s
:: Found streams: audio, 160p, 360p, 480p, 720p, 720p60, 1080p60, worst, best