The error comes in a statement like this
WARNING: Automatic signature extraction failed: Traceback (most recent call last): File "/usr/lib/python2.7/dist-packages/youtube_dl/extractor/youtube.py", line 957, in _decrypt_signature video_id, player_url, len(s) File "/usr/lib/python2.7/dist-packages/youtube_dl/extractor/youtube.py", line 331, in _extract_signature_function player_type = id_m.group('ext')
AttributeError: 'NoneType' object has no attribute 'group'
WARNING: Warning: Falling back to static signature algorithmAny sort of help is greatly appreciated.
12 Answers
That's a python error.
Something went wrong with the version of youtube-dl you're using. I've never used it, so I can't tell you for sure if you improperly used it, or if it just has a bug.
@Richard asked what version you're using - this issue may or may not be resolved in a newer version of the program.
Looking at the dev's github there was a release just last friday - he has instructions there on how to install it, I'd give that a shot. There are a few issues that match "NoneType", maybe one of those matches the exact issue you're seeing?
YouTube changed their player on July 25, 2014. You will need youtube-dl version 20140725 or newer.
You may want to use your package manager, I believe it is apt-get on ubuntu to see it that brings you up-to-date.
Some distributions are a bit behind so you may want to uninstall the package-manager version and install directly from the developers site. As long as you have Python 2.6/2.7 this should work:
sudo curl -L -s -o /usr/local/bin/youtube-dl
sudo chmod a+x /usr/local/bin/youtube-dl
