Error downloading YouTube playlist: KeyError: 'sig'

[joshtriplett]

$ ./youtube-dl --playlist-end=7 'https://www.youtube.com/playlist?list=PLB600313D4723E21F'
[youtube] PL B600313D4723E21F: Downloading page #1
[youtube] PL B600313D4723E21F: Found 18 videos, downloading 7
[youtube] Setting language
[youtube] pVORGr2fDk8: Downloading video webpage
[youtube] pVORGr2fDk8: Downloading video info webpage
[youtube] pVORGr2fDk8: Extracting video information
Traceback (most recent call last):
  File "/usr/lib/python2.7/runpy.py", line 162, in _run_module_as_main
    "__main__", fname, loader, pkg_name)
  File "/usr/lib/python2.7/runpy.py", line 72, in _run_code
    exec code in run_globals
  File "./youtube-dl/__main__.py", line 17, in <module>
  File "./youtube-dl/youtube_dl/__init__.py", line 486, in main
  File "./youtube-dl/youtube_dl/__init__.py", line 470, in _real_main
  File "./youtube-dl/youtube_dl/FileDownloader.py", line 498, in download
  File "./youtube-dl/youtube_dl/InfoExtractors.py", line 91, in extract
  File "./youtube-dl/youtube_dl/InfoExtractors.py", line 1683, in _real_extract
  File "./youtube-dl/youtube_dl/FileDownloader.py", line 498, in download
  File "./youtube-dl/youtube_dl/InfoExtractors.py", line 91, in extract
  File "./youtube-dl/youtube_dl/InfoExtractors.py", line 479, in _real_extract
  File "./youtube-dl/youtube_dl/InfoExtractors.py", line 479, in <genexpr>
KeyError: 'sig'

[phihag]

It looks like you are running a severely outdated version of youtube-dl. Type ./youtube-dl -U to update. If the problem persists, please post the full output you get when running youtube-dl with the --verbose switch.

[joshtriplett]

Here's the output of --verbose:

[debug] System config: []
[debug] User config: ['--title', '--prefer-free-formats']
[debug] Command-line args: ['--verbose', 'https://www.youtube.com/watch?list=PLB600313D4723E21F']
[debug] Encodings: locale 'UTF-8', fs 'UTF-8', out 'UTF-8', pref: 'UTF-8'
[debug] youtube-dl version 2014.02.17
[debug] Python version 2.7.6 - Linux-3.13-1-amd64-x86_64-with-debian-jessie-sid
[debug] Proxy map: {}
[youtube:playlist] PLB600313D4723E21F: Downloading page #1
WARNING: [youtube:playlist] PLB600313D4723E21F: Playlist page is missing OpenGraph title, falling back ...
ERROR: Unable to extract title; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type  youtube-dl -U  to update.
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/youtube_dl/extractor/youtube.py", line 1511, in _real_extract
    playlist_title = self._og_search_title(page)
  File "/usr/lib/python2.7/dist-packages/youtube_dl/extractor/common.py", line 428, in _og_search_title
    return self._og_search_property('title', html, **kargs)
  File "/usr/lib/python2.7/dist-packages/youtube_dl/extractor/common.py", line 416, in _og_search_property
    escaped = self._search_regex(self._og_regexes(prop), html, name, flags=re.DOTALL, **kargs)
  File "/usr/lib/python2.7/dist-packages/youtube_dl/extractor/common.py", line 356, in _search_regex
    raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract OpenGraph title; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type  youtube-dl -U  to update.
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/youtube_dl/YoutubeDL.py", line 493, in extract_info
    ie_result = ie.extract(url)
  File "/usr/lib/python2.7/dist-packages/youtube_dl/extractor/common.py", line 158, in extract
    return self._real_extract(url)
  File "/usr/lib/python2.7/dist-packages/youtube_dl/extractor/youtube.py", line 1517, in _real_extract
    r'<h1 class="pl-header-title">(.*?)</h1>', page, u'title')
  File "/usr/lib/python2.7/dist-packages/youtube_dl/extractor/common.py", line 366, in _html_search_regex
    res = self._search_regex(pattern, string, name, default, fatal, flags)
  File "/usr/lib/python2.7/dist-packages/youtube_dl/extractor/common.py", line 356, in _search_regex
    raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract title; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type  youtube-dl -U  to update.

[phihag]

Huh? That's a completely different error! Can you reproduce the original one? Did you update in between these posts? In any case, the new version is still out of date, it should be 2014.03.29 or newer. Can you post the output you get with that?

[joshtriplett]

Apparently https://github.com/downloads/rg3/youtube-dl/youtube-dl no longer contains an up-to-date version of youtube-dl; it used to. I've been using that as the address to download a new version from when the packaged version stops working, until it gets updated.

[phihag]

That file has been deprecated and is only there for legacy installations since 2012 (basically, the growth of features necessitated a split into multiple files, and the git repository is not suitable for our large binary builds).

Please follow our official downloading instructions to install youtube-dl. The new and permanently maintainable URL is https://yt-dl.org/latest/youtube-dl .