While working on a GNU/Linux Fedora 26
virtual machine running under the Qubes 4.0 OS
, we installed youtube-dl
through dnf
to download some media off the net.
sudo dnf install youtube-dl;
When we tried to use it, we got the error youtube_dl.utils.RegexNotFoundError: Unable to extract Initial JS player signature function name
. This issue was resolved years ago, so it led us to the conclusion that our version of youtube-dl
was out of date. To test this hypothesis, we updated youtube-dl
with pip
.
sudo pip install --upgrade youtube_dl;
After the update was complete, we tried to use youtube-dl
, this time with success!!
Full Logs:
[george@local Music]$ youtube-dl bash: youtube-dl: command not found... [george@local Music]$ sudo dnf install youtube-dl Last metadata expiration check: 0:52:47 ago on Sat Nov 10 10:43:46 2018. Dependencies resolved. ================================================================================ Package Arch Version Repository Size ================================================================================ Installing: youtube-dl noarch 2018.04.16-1.fc26 updates 2.6 M Transaction Summary ================================================================================ Install 1 Package Total download size: 2.6 M Installed size: 11 M Is this ok [y/N]: y Downloading Packages: youtube-dl-2018.04.16-1.fc26.noarch.rpm 270 kB/s | 2.6 MB 00:09 ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Total 258 kB/s | 2.6 MB 00:10 Running transaction check Transaction check succeeded. Running transaction test Transaction test succeeded. Running transaction Preparing : 1/1 Installing : youtube-dl-2018.04.16-1.fc26.noarch 1/1 Running scriptlet: youtube-dl-2018.04.16-1.fc26.noarch 1/1 Running as unit: run-rfddd15fff2d14d109826a90f59325e97.service Verifying : youtube-dl-2018.04.16-1.fc26.noarch 1/1 Notifying dom0 about installed applications Installed: youtube-dl.noarch 2018.04.16-1.fc26 Complete! [george@local Music]$ youtube-dl https://www.youtube.com/watch?list=r6akoO34yUvK8ddtjnzL r6akoO34yUvK8ddtjnzL: Downloading webpage [download] Downloading playlist: How to cook a banana playlist How to cook a banana: Downloading 18 videos [download] Downloading video 1 of 18 ir86d1hTSv1r: Downloading webpage ir86d1hTSv1r: Downloading video info webpage ir86d1hTSv1r: Extracting video information ir86d1hTSv1r: Downloading js player vfls4aurX ERROR: Signature extraction failed: Traceback (most recent call last): File "/usr/lib/python3.6/site-packages/youtube_dl/extractor/youtube.py", line 1191, in _decrypt_signature video_id, player_url, s File "/usr/lib/python3.6/site-packages/youtube_dl/extractor/youtube.py", line 1102, in _extract_signature_function res = self._parse_sig_js(code) File "/usr/lib/python3.6/site-packages/youtube_dl/extractor/youtube.py", line 1163, in _parse_sig_js jscode, 'Initial JS player signature function name', group='sig') File "/usr/lib/python3.6/site-packages/youtube_dl/extractor/common.py", line 808, 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. [george@local Music]$ sudo pip install --upgrade youtube_dl WARNING: Running pip install with root privileges is generally not a good idea. Try `pip install --user` instead. Collecting youtube_dl Downloading https://files.pythonhosted.org/packages/6c/a4/c2e3fbd8b9c7ccbca3f220c4fb0914926669bf9080fb8f2f4db4811706be/youtube_dl-2018.11.7-py2.py3-none-any.whl (1.8MB) 100% |████████████████████████████████| 1.8MB 355kB/s Installing collected packages: youtube-dl Successfully installed youtube-dl-2018.11.7 [george@local Music]$ youtube-dl https://www.youtube.com/watch?list=r6akoO34yUvK8ddtjnzL r6akoO34yUvK8ddtjnzL: Downloading webpage [download] Downloading playlist: How to cook a banana playlist How to cook a banana: Downloading 18 videos [download] Downloading video 1 of 18 ir86d1hTSv1r: Downloading webpage ir86d1hTSv1r: Downloading video info webpage ir86d1hTSv1r: Downloading js player vfls4aurX WARNING: Requested formats are incompatible for merge and will be merged into mkv.
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