[yahoo] Unable to download webpage

[RuneMagle]

• I've verified and I assure that I'm running youtube-dl 2017.04.17
• At least skimmed through README and most notably FAQ and BUGS sections
• Searched the bugtracker for similar issues including closed ones

Issue Category

• Bug report (encountered problems with youtube-dl)
• Site support request (request for adding support for a new site)
• Feature request (request for a new functionality)
• Question
• Other

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Desktop\youtube-dl>youtube-dl.exe -f best --all-subs https://www.yahoo.com/tv/elena-avalor-sneak-peek-lou-diamond-phillips-gem-villain-133030991.html -v
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['-f', 'best', '--all-subs', 'https://www.yahoo.com/tv/elena-avalor-sneak-peek-lou-diamond-phillips-gem-villain-133030991.html', '-v']
[debug] Encodings: locale cp1252, fs mbcs, out cp850, pref cp1252
[debug] youtube-dl version 2017.04.17
[debug] Python version 3.4.4 - Windows-10-10.0.14393
[debug] exe versions: ffmpeg N-82833-gedb4f5d, ffprobe N-82833-gedb4f5d, rtmpdump 2.3
[debug] Proxy map: {}
[Yahoo] elena-avalor-sneak-peek-lou-diamond-phillips-gem-villain: Downloading webpage
Traceback (most recent call last):
  File "__main__.py", line 19, in <module>
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmp7vri0rse\build\youtube_dl\__init__.py", line 464, in main
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmp7vri0rse\build\youtube_dl\__init__.py", line 454, in _real_main
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmp7vri0rse\build\youtube_dl\YoutubeDL.py", line 1896, in download
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmp7vri0rse\build\youtube_dl\YoutubeDL.py", line 760, in extract_info
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmp7vri0rse\build\youtube_dl\extractor\common.py", line 429, in extract
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmp7vri0rse\build\youtube_dl\extractor\yahoo.py", line 261, in _real_extract
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmp7vri0rse\build\youtube_dl\extractor\brightcove.py", line 488, in _extract_url
TypeError: _extract_urls() missing 1 required positional argument: 'webpage'
...
<end of log>

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• Single video: https://www.yahoo.com/tv/elena-avalor-sneak-peek-lou-diamond-phillips-gem-villain-133030991.html
• Single video: https://www.yahoo.com/tv/elena-avalor-lou-diamond-phillips-133000070.html

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Description of issue