Signature extraction failed with YouTube video

[ddevault]

sircmpwn@homura /t/tmp.qU7B7HSHIq> youtube-dl "https://www.youtube.com/watch?v=zs9Fay4mgsY" -v
[debug] System config: []
[debug] User config: []
[debug] Command-line args: ['https://www.youtube.com/watch?v=zs9Fay4mgsY', '-v']
[debug] Encodings: locale UTF-8, fs utf-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2015.11.24
[debug] Python version 3.5.1 - Linux-4.3.3-2-ARCH-x86_64-with-arch
[debug] exe versions: ffmpeg 2.8.4, ffprobe 2.8.4, rtmpdump 2.4
[debug] Proxy map: {}
[youtube] zs9Fay4mgsY: Downloading webpage
[youtube] zs9Fay4mgsY: Downloading video info webpage
[youtube] zs9Fay4mgsY: Extracting video information
[youtube] {22} signature length 43.43, html5 player en_US-vflnrstgx
[youtube] zs9Fay4mgsY: Downloading player https://s.ytimg.com/yts/jsbin/player-en_US-vflnrstgx/base.js
ERROR: Signature extraction failed: Traceback (most recent call last):
  File "/usr/lib/python3.5/site-packages/youtube_dl/extractor/youtube.py", line 856, in _decrypt_signature
    video_id, player_url, s
  File "/usr/lib/python3.5/site-packages/youtube_dl/extractor/youtube.py", line 771, in _extract_signature_function
    res = self._parse_sig_js(code)
  File "/usr/lib/python3.5/site-packages/youtube_dl/extractor/youtube.py", line 834, in _parse_sig_js
    initial_function = jsi.extract_function(funcname)
  File "/usr/lib/python3.5/site-packages/youtube_dl/jsinterp.py", line 241, in extract_function
    raise ExtractorError('Could not find JS function %r' % funcname)
youtube_dl.utils.ExtractorError: Could not find JS function 'gr'; please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; see  https://yt-dl.org/update  on how to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.
 (caused by ExtractorError("Could not find JS function 'gr'; please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; see  https://yt-dl.org/update  on how to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.",)); please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; see  https://yt-dl.org/update  on how to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.
Traceback (most recent call last):
  File "/usr/lib/python3.5/site-packages/youtube_dl/extractor/youtube.py", line 856, in _decrypt_signature
    video_id, player_url, s
  File "/usr/lib/python3.5/site-packages/youtube_dl/extractor/youtube.py", line 771, in _extract_signature_function
    res = self._parse_sig_js(code)
  File "/usr/lib/python3.5/site-packages/youtube_dl/extractor/youtube.py", line 834, in _parse_sig_js
    initial_function = jsi.extract_function(funcname)
  File "/usr/lib/python3.5/site-packages/youtube_dl/jsinterp.py", line 241, in extract_function
    raise ExtractorError('Could not find JS function %r' % funcname)
youtube_dl.utils.ExtractorError: Could not find JS function 'gr'; please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; see  https://yt-dl.org/update  on how to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.
Traceback (most recent call last):
  File "/usr/lib/python3.5/site-packages/youtube_dl/extractor/youtube.py", line 856, in _decrypt_signature
    video_id, player_url, s
  File "/usr/lib/python3.5/site-packages/youtube_dl/extractor/youtube.py", line 771, in _extract_signature_function
    res = self._parse_sig_js(code)
  File "/usr/lib/python3.5/site-packages/youtube_dl/extractor/youtube.py", line 834, in _parse_sig_js
    initial_function = jsi.extract_function(funcname)
  File "/usr/lib/python3.5/site-packages/youtube_dl/jsinterp.py", line 241, in extract_function
    raise ExtractorError('Could not find JS function %r' % funcname)
youtube_dl.utils.ExtractorError: Could not find JS function 'gr'; please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; see  https://yt-dl.org/update  on how to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/lib/python3.5/site-packages/youtube_dl/YoutubeDL.py", line 663, in extract_info
    ie_result = ie.extract(url)
  File "/usr/lib/python3.5/site-packages/youtube_dl/extractor/common.py", line 290, in extract
    return self._real_extract(url)
  File "/usr/lib/python3.5/site-packages/youtube_dl/extractor/youtube.py", line 1410, in _real_extract
    encrypted_sig, video_id, player_url, age_gate)
  File "/usr/lib/python3.5/site-packages/youtube_dl/extractor/youtube.py", line 866, in _decrypt_signature
    'Signature extraction failed: ' + tb, cause=e)
youtube_dl.utils.ExtractorError: Signature extraction failed: Traceback (most recent call last):
  File "/usr/lib/python3.5/site-packages/youtube_dl/extractor/youtube.py", line 856, in _decrypt_signature
    video_id, player_url, s
  File "/usr/lib/python3.5/site-packages/youtube_dl/extractor/youtube.py", line 771, in _extract_signature_function
    res = self._parse_sig_js(code)
  File "/usr/lib/python3.5/site-packages/youtube_dl/extractor/youtube.py", line 834, in _parse_sig_js
    initial_function = jsi.extract_function(funcname)
  File "/usr/lib/python3.5/site-packages/youtube_dl/jsinterp.py", line 241, in extract_function
    raise ExtractorError('Could not find JS function %r' % funcname)
youtube_dl.utils.ExtractorError: Could not find JS function 'gr'; please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; see  https://yt-dl.org/update  on how to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.
 (caused by ExtractorError("Could not find JS function 'gr'; please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; see  https://yt-dl.org/update  on how to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.",)); please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; see  https://yt-dl.org/update  on how to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.

[dstftw]

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