[youtube] Failure during signature extraction

[ghost]

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Make sure you are using the latest version: run youtube-dl --version and ensure your version is 2017.01.10. If it's not read this FAQ entry and update. Issues with outdated version will be rejected.

• I've verified and I assure that I'm running youtube-dl 2017.01.10

Before submitting an issue make sure you have:

• At least skimmed through README and most notably FAQ and BUGS sections
• Searched the bugtracker for similar issues including closed ones

What is the purpose of your issue?

• 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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If the purpose of this issue is a site support request please provide all kinds of example URLs support for which should be included (replace following example URLs by yours):

• Single video: https://www.youtube.com/watch?v=vqSpRzoV7fg

Note that youtube-dl does not support sites dedicated to copyright infringement. In order for site support request to be accepted all provided example URLs should not violate any copyrights.

[debug] System config: []
[debug] User config: ['--external-downloader=aria2c', '--external-downloader-args=--file-allocation=falloc --max-connection-per-server=10 --min-split-size=1M', '--ignore-errors', '--prefer-ffmpeg', '--embed-subs']
[debug] Custom config: []
[debug] Command-line args: ['--verbose', 'https://www.youtube.com/watch?v=vqSpRzoV7fg']
[debug] Encodings: locale UTF-8, fs utf-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2017.01.08
[debug] Python version 3.5.2 - Darwin-16.3.0-x86_64-i386-64bit
[debug] exe versions: avconv 11.4, avprobe 11.4, ffmpeg 3.2.2, ffprobe 3.2.2, rtmpdump 2.4
[debug] Proxy map: {}
[youtube] vqSpRzoV7fg: Downloading webpage
[youtube] vqSpRzoV7fg: Downloading video info webpage
[youtube] vqSpRzoV7fg: Extracting video information
[youtube] {22} signature length 44.40, html5 player en_US-vflsagga9
[youtube] vqSpRzoV7fg: Downloading player https://s.ytimg.com/yts/jsbin/player-en_US-vflsagga9/base.js
ERROR: Signature extraction failed: Traceback (most recent call last):
File "/usr/local/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 1005, in _decrypt_signature
video_id, player_url, s
File "/usr/local/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 932, in _extract_signature_function
cache_res = res(test_string)
File "/usr/local/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 984, in
return lambda s: initial_function([s])
File "/usr/local/bin/youtube-dl/youtube_dl/jsinterp.py", line 254, in resf
res, abort = self.interpret_statement(stmt, local_vars)
File "/usr/local/bin/youtube-dl/youtube_dl/jsinterp.py", line 55, in interpret_statement
v = self.interpret_expression(expr, local_vars, allow_recursion)
File "/usr/local/bin/youtube-dl/youtube_dl/jsinterp.py", line 174, in interpret_expression
return objmember
KeyError: 'qC'
(caused by KeyError('qC',)); please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; type youtube-dl -U to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.
Traceback (most recent call last):
File "/usr/local/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 1005, in _decrypt_signature
video_id, player_url, s
File "/usr/local/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 932, in _extract_signature_function
cache_res = res(test_string)
File "/usr/local/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 984, in
return lambda s: initial_function([s])
File "/usr/local/bin/youtube-dl/youtube_dl/jsinterp.py", line 254, in resf
res, abort = self.interpret_statement(stmt, local_vars)
File "/usr/local/bin/youtube-dl/youtube_dl/jsinterp.py", line 55, in interpret_statement
v = self.interpret_expression(expr, local_vars, allow_recursion)
File "/usr/local/bin/youtube-dl/youtube_dl/jsinterp.py", line 174, in interpret_expression
return objmember
KeyError: 'qC'
Traceback (most recent call last):
File "/usr/local/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 1005, in _decrypt_signature
video_id, player_url, s
File "/usr/local/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 932, in _extract_signature_function
cache_res = res(test_string)
File "/usr/local/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 984, in
return lambda s: initial_function([s])
File "/usr/local/bin/youtube-dl/youtube_dl/jsinterp.py", line 254, in resf
res, abort = self.interpret_statement(stmt, local_vars)
File "/usr/local/bin/youtube-dl/youtube_dl/jsinterp.py", line 55, in interpret_statement
v = self.interpret_expression(expr, local_vars, allow_recursion)
File "/usr/local/bin/youtube-dl/youtube_dl/jsinterp.py", line 174, in interpret_expression
return objmember
KeyError: 'qC'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 694, in extract_info
ie_result = ie.extract(url)
File "/usr/local/bin/youtube-dl/youtube_dl/extractor/common.py", line 359, in extract
return self._real_extract(url)
File "/usr/local/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 1584, in _real_extract
encrypted_sig, video_id, player_url, age_gate)
File "/usr/local/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 1015, in _decrypt_signature
'Signature extraction failed: ' + tb, cause=e)
youtube_dl.utils.ExtractorError: Signature extraction failed: Traceback (most recent call last):
File "/usr/local/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 1005, in _decrypt_signature
video_id, player_url, s
File "/usr/local/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 932, in _extract_signature_function
cache_res = res(test_string)
File "/usr/local/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 984, in
return lambda s: initial_function([s])
File "/usr/local/bin/youtube-dl/youtube_dl/jsinterp.py", line 254, in resf
res, abort = self.interpret_statement(stmt, local_vars)
File "/usr/local/bin/youtube-dl/youtube_dl/jsinterp.py", line 55, in interpret_statement
v = self.interpret_expression(expr, local_vars, allow_recursion)
File "/usr/local/bin/youtube-dl/youtube_dl/jsinterp.py", line 174, in interpret_expression
return objmember
KeyError: 'qC'
(caused by KeyError('qC',)); please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; type youtube-dl -U to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.

[dstftw]

You are using an outdated version of youtube-dl. Read this FAQ entry if you have troubles updating.

[ghost]

The new version is not in homebrew yet. Sorry about that.