pulling from youtube fails

[internetrandom]

Make sure you are using the latest version: run youtube-dl --version and ensure your version is 2018.11.07. 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 Issues with outdated version will be rejected.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 2018.11.07

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• At least skimmed through the README, most notably the FAQ and BUGS sections
• Searched the bugtracker for similar issues including closed ones
• Checked that provided video/audio/playlist URLs (if any) are alive and playable in a browser

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)
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If the purpose of this issue is a bug report, site support request or you are not completely sure provide the full verbose output as follows:

see below

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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):

https://www.youtube.com/watch?v=0TKH8tFKHbE

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Description of your issue, suggested solution and other information

pulling from youtube.com didn't work

youtube-dl --verbose https://www.youtube.com/watch?v=0TKH8tFKHbE
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['--verbose', 'https://www.youtube.com/watch?v=0TKH8tFKHbE']
[debug] Encodings: locale UTF-8, fs utf-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2018.10.05
[debug] Python version 3.6.7 (CPython) - Linux-4.18.0-2-amd64-x86_64-with-debian-buster-sid
[debug] exe versions: ffmpeg 4.0.2, ffprobe 4.0.2, phantomjs ., rtmpdump 2.4
[debug] Proxy map: {}
[youtube] 0TKH8tFKHbE: Downloading webpage
[youtube] 0TKH8tFKHbE: Downloading video info webpage
[youtube] {18} signature length 44.40, html5 player vflWnjS_n
[youtube] 0TKH8tFKHbE: Downloading player https://www.youtube.com/yts/jsbin/player-vflWnjS_n/en_US/base.js
ERROR: Signature extraction failed: Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/youtube_dl/extractor/youtube.py", line 1221, in _decrypt_signature
video_id, player_url, s
File "/usr/lib/python3/dist-packages/youtube_dl/extractor/youtube.py", line 1130, in _extract_signature_function
res = self._parse_sig_js(code)
File "/usr/lib/python3/dist-packages/youtube_dl/extractor/youtube.py", line 1193, in _parse_sig_js
jscode, 'Initial JS player signature function name', group='sig')
File "/usr/lib/python3/dist-packages/youtube_dl/extractor/common.py", line 977, in _search_regex
raise RegexNotFoundError('Unable to extract %s' % _name)
youtube_dl.utils.RegexNotFoundError: Unable to extract Initial JS player signature function name; 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 RegexNotFoundError('Unable to extract \x1b[0;34mInitial JS player signature function name\x1b[0m; 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/dist-packages/youtube_dl/extractor/youtube.py", line 1221, in _decrypt_signature
video_id, player_url, s
File "/usr/lib/python3/dist-packages/youtube_dl/extractor/youtube.py", line 1130, in _extract_signature_function
res = self._parse_sig_js(code)
File "/usr/lib/python3/dist-packages/youtube_dl/extractor/youtube.py", line 1193, in _parse_sig_js
jscode, 'Initial JS player signature function name', group='sig')
File "/usr/lib/python3/dist-packages/youtube_dl/extractor/common.py", line 977, in _search_regex
raise RegexNotFoundError('Unable to extract %s' % _name)
youtube_dl.utils.RegexNotFoundError: Unable to extract Initial JS player signature function name; 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/dist-packages/youtube_dl/extractor/youtube.py", line 1221, in _decrypt_signature
video_id, player_url, s
File "/usr/lib/python3/dist-packages/youtube_dl/extractor/youtube.py", line 1130, in _extract_signature_function
res = self._parse_sig_js(code)
File "/usr/lib/python3/dist-packages/youtube_dl/extractor/youtube.py", line 1193, in _parse_sig_js
jscode, 'Initial JS player signature function name', group='sig')
File "/usr/lib/python3/dist-packages/youtube_dl/extractor/common.py", line 977, in _search_regex
raise RegexNotFoundError('Unable to extract %s' % _name)
youtube_dl.utils.RegexNotFoundError: Unable to extract Initial JS player signature function name; 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/dist-packages/youtube_dl/YoutubeDL.py", line 792, in extract_info
ie_result = ie.extract(url)
File "/usr/lib/python3/dist-packages/youtube_dl/extractor/common.py", line 507, in extract
ie_result = self._real_extract(url)
File "/usr/lib/python3/dist-packages/youtube_dl/extractor/youtube.py", line 1814, in _real_extract
encrypted_sig, video_id, player_url, age_gate)
File "/usr/lib/python3/dist-packages/youtube_dl/extractor/youtube.py", line 1231, 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/dist-packages/youtube_dl/extractor/youtube.py", line 1221, in _decrypt_signature
video_id, player_url, s
File "/usr/lib/python3/dist-packages/youtube_dl/extractor/youtube.py", line 1130, in _extract_signature_function
res = self._parse_sig_js(code)
File "/usr/lib/python3/dist-packages/youtube_dl/extractor/youtube.py", line 1193, in _parse_sig_js
jscode, 'Initial JS player signature function name', group='sig')
File "/usr/lib/python3/dist-packages/youtube_dl/extractor/common.py", line 977, in _search_regex
raise RegexNotFoundError('Unable to extract %s' % _name)
youtube_dl.utils.RegexNotFoundError: Unable to extract Initial JS player signature function name; 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 RegexNotFoundError('Unable to extract \x1b[0;34mInitial JS player signature function name\x1b[0m; 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.