Can't download youtube playlist

[Mattwmaster58]

• I've verified and I assure that I'm running youtube-dl 2018.10.05
• 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)

---

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:

[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['-v', '--extract-audio', '--audio-format', 'mp3', 'http://www.youtube.com/watch?v=iX-QaNzd-0Y&list=PLhuV-wp3Q6ITvdGi-8PMMQQUxgWviiOcq']
[debug] Encodings: locale UTF-8, fs utf-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2018.08.22
[debug] Python version 3.7.0 (CPython) - Linux-4.18.12-arch1-1-ARCH-x86_64-with-arch
[debug] exe versions: ffmpeg n4.0.2, ffprobe n4.0.2
[debug] Proxy map: {}
[youtube:playlist] Downloading playlist PLhuV-wp3Q6ITvdGi-8PMMQQUxgWviiOcq - add --no-playlist to just download video iX-QaNzd-0Y
[youtube:playlist] PLhuV-wp3Q6ITvdGi-8PMMQQUxgWviiOcq: Downloading webpage
[download] Downloading playlist: playlist no 1
[youtube:playlist] playlist playlist no 1: Downloading 15 videos
[download] Downloading video 1 of 15
[youtube] iX-QaNzd-0Y: Downloading webpage
[youtube] iX-QaNzd-0Y: Downloading video info webpage
WARNING: unable to extract html5 player; 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.
[youtube] {18} signature length 44.40, html5 player None
[youtube] iX-QaNzd-0Y: Downloading player https://www.youtube.com/yts/jsbin/player_ias-vflOjC-XR/en_US/base.js
ERROR: Signature extraction failed: Traceback (most recent call last):
  File "/home/matt/.local/lib/python3.7/site-packages/youtube_dl/extractor/youtube.py", line 1210, in _decrypt_signature
    video_id, player_url, s
  File "/home/matt/.local/lib/python3.7/site-packages/youtube_dl/extractor/youtube.py", line 1121, in _extract_signature_function
    res = self._parse_sig_js(code)
  File "/home/matt/.local/lib/python3.7/site-packages/youtube_dl/extractor/youtube.py", line 1182, in _parse_sig_js
    jscode, 'Initial JS player signature function name', group='sig')
  File "/home/matt/.local/lib/python3.7/site-packages/youtube_dl/extractor/common.py", line 972, 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 "/home/matt/.local/lib/python3.7/site-packages/youtube_dl/extractor/youtube.py", line 1210, in _decrypt_signature
    video_id, player_url, s
  File "/home/matt/.local/lib/python3.7/site-packages/youtube_dl/extractor/youtube.py", line 1121, in _extract_signature_function
    res = self._parse_sig_js(code)
  File "/home/matt/.local/lib/python3.7/site-packages/youtube_dl/extractor/youtube.py", line 1182, in _parse_sig_js
    jscode, 'Initial JS player signature function name', group='sig')
  File "/home/matt/.local/lib/python3.7/site-packages/youtube_dl/extractor/common.py", line 972, 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 "/home/matt/.local/lib/python3.7/site-packages/youtube_dl/extractor/youtube.py", line 1210, in _decrypt_signature
    video_id, player_url, s
  File "/home/matt/.local/lib/python3.7/site-packages/youtube_dl/extractor/youtube.py", line 1121, in _extract_signature_function
    res = self._parse_sig_js(code)
  File "/home/matt/.local/lib/python3.7/site-packages/youtube_dl/extractor/youtube.py", line 1182, in _parse_sig_js
    jscode, 'Initial JS player signature function name', group='sig')
  File "/home/matt/.local/lib/python3.7/site-packages/youtube_dl/extractor/common.py", line 972, 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.

When provided with the command youtube-dl -v --extract-audio --audio-format mp3 "http://www.youtube.com/watch?v=iX-QaNzd-0Y&list=PLhuV-wp3Q6ITvdGi-8PMMQQUxgWviiOcq", youtube-dl fails to download the playlist.

[remitamine]

• I've verified and I assure that I'm running youtube-dl 2018.10.05
  [debug] youtube-dl version 2018.08.22

[Mattwmaster58]

I'm sorry, I updated with pip but my system wasn't using that version apparenlty. I updated and everything is working fine again. Sorry for the disruption.