Unsupported JS expression u'$y(a,7)' #2311

JacobHeubner · 2014-02-04T21:35:43Z

new to the application. Have about a dozen videos giving me this error, while another half-dozen work fine.

Running on Windows 7

C:\Users\Heubner\Downloads>youtube-dl http://www.youtube.com/watch?v=io2WOQ-3aVs -v

[youtube] Setting language
[youtube] io2WOQ-3aVs: Downloading webpage
[youtube] io2WOQ-3aVs: Downloading video info webpage
[youtube] io2WOQ-3aVs: Extracting video information
[youtube] io2WOQ-3aVs: Encrypted signatures detected.
[youtube] encrypted signature length 90 (46.43), itag 22, html5 player vfle-mVwz
[youtube] io2WOQ-3aVs: Downloading js player mVwz
[youtube] encrypted signature length 90 (46.43), itag 43, html5 player vfle-mVwz
[youtube] encrypted signature length 90 (46.43), itag 18, html5 player vfle-mVwz
[youtube] encrypted signature length 90 (46.43), itag 5, html5 player vfle-mVwz
[youtube] encrypted signature length 90 (46.43), itag 36, html5 player vfle-mVwz
[youtube] encrypted signature length 90 (46.43), itag 17, html5 player vfle-mVwz
[youtube] encrypted signature length 83 (42.40), itag 137, html5 player vfle-mVwz
[youtube] io2WOQ-3aVs: Downloading js player mVwz
[youtube] encrypted signature length 83 (42.40), itag 136, html5 player vfle-mVwz
[youtube] encrypted signature length 83 (42.40), itag 135, html5 player vfle-mVwz
[youtube] encrypted signature length 83 (42.40), itag 134, html5 player vfle-mVwz
[youtube] encrypted signature length 83 (42.40), itag 133, html5 player vfle-mVwz
[youtube] encrypted signature length 83 (42.40), itag 160, html5 player vfle-mVwz
[youtube] encrypted signature length 83 (42.40), itag 140, html5 player vfle-mVwz
[youtube] encrypted signature length 83 (42.40), itag 171, html5 player vfle-mVwz
[youtube] encrypted signature length 90 (46.43), itag 137, html5 player vfle-mVwz
[youtube] encrypted signature length 90 (46.43), itag 136, html5 player vfle-mVwz
[youtube] encrypted signature length 90 (46.43), itag 135, html5 player vfle-mVwz
[youtube] encrypted signature length 90 (46.43), itag 134, html5 player vfle-mVwz
[youtube] encrypted signature length 90 (46.43), itag 133, html5 player vfle-mVwz
[youtube] encrypted signature length 90 (46.43), itag 160, html5 player vfle-mVwz
[youtube] encrypted signature length 90 (46.43), itag 140, html5 player vfle-mVwz
[youtube] encrypted signature length 90 (46.43), itag 171, html5 player vfle-mVwz
File "youtube_dl\extractor\youtube.pyo", line 962, in _decrypt_signature
File "youtube_dl\extractor\youtube.pyo", line 530, in
File "youtube_dl\extractor\youtube.pyo", line 525, in resf
File "youtube_dl\extractor\youtube.pyo", line 460, in interpret_statement
File "youtube_dl\extractor\youtube.pyo", line 513, in interpret_expression
ExtractorError: Unsupported JS expression u'$y(a,7)'; 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.

WARNING: Warning: Falling back to static signature algorithm
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "youtube_dl\extractor\youtube.pyo", line 962, in _decrypt_signature
File "youtube_dl\extractor\youtube.pyo", line 530, in
File "youtube_dl\extractor\youtube.pyo", line 525, in resf
File "youtube_dl\extractor\youtube.pyo", line 460, in interpret_statement
File "youtube_dl\extractor\youtube.pyo", line 513, in interpret_expression
ExtractorError: Unsupported JS expression u'$y(a,7)'; 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.

WARNING: Warning: Falling back to static signature algorithm
WARNING: Writing cache to u'C:\Users\Heubner/.cache\youtube-dl\youtube-sigfuncs\js_mVwz_83.json' failed: Traceback (most recent call last):
File "youtube_dl\extractor\youtube.pyo", line 369, in _extract_signature_function
File "youtube_dl\extractor\youtube.pyo", line 530, in
File "youtube_dl\extractor\youtube.pyo", line 525, in resf
File "youtube_dl\extractor\youtube.pyo", line 460, in interpret_statement
File "youtube_dl\extractor\youtube.pyo", line 513, in interpret_expression
ExtractorError: Unsupported JS expression u'$y(a,7)'; 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.

WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "youtube_dl\extractor\youtube.pyo", line 962, in _decrypt_signature
File "youtube_dl\extractor\youtube.pyo", line 530, in
File "youtube_dl\extractor\youtube.pyo", line 525, in resf
File "youtube_dl\extractor\youtube.pyo", line 460, in interpret_statement
File "youtube_dl\extractor\youtube.pyo", line 513, in interpret_expression
ExtractorError: Unsupported JS expression u'$y(a,7)'; 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.

WARNING: Warning: Falling back to static signature algorithm
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "youtube_dl\extractor\youtube.pyo", line 962, in _decrypt_signature
File "youtube_dl\extractor\youtube.pyo", line 530, in
File "youtube_dl\extractor\youtube.pyo", line 525, in resf
File "youtube_dl\extractor\youtube.pyo", line 460, in interpret_statement
File "youtube_dl\extractor\youtube.pyo", line 513, in interpret_expression
ExtractorError: Unsupported JS expression u'$y(a,7)'; 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.

WARNING: Warning: Falling back to static signature algorithm
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "youtube_dl\extractor\youtube.pyo", line 962, in _decrypt_signature
File "youtube_dl\extractor\youtube.pyo", line 530, in
File "youtube_dl\extractor\youtube.pyo", line 525, in resf
File "youtube_dl\extractor\youtube.pyo", line 460, in interpret_statement
File "youtube_dl\extractor\youtube.pyo", line 513, in interpret_expression
ExtractorError: Unsupported JS expression u'$y(a,7)'; 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.

WARNING: Warning: Falling back to static signature algorithm
ERROR: unable to download video data: HTTP Error 403: Forbidden
Traceback (most recent call last):
File "youtube_dl\YoutubeDL.pyo", line 953, in process_info
File "youtube_dl\YoutubeDL.pyo", line 929, in dl
File "youtube_dl\downloader\common.pyo", line 290, in download
File "youtube_dl\downloader\http.pyo", line 52, in real_download
File "urllib2.pyo", line 127, in urlopen
File "urllib2.pyo", line 410, in open
File "urllib2.pyo", line 523, in http_response
File "urllib2.pyo", line 448, in error
File "urllib2.pyo", line 382, in _call_chain
File "urllib2.pyo", line 531, in http_error_default
HTTPError: HTTP Error 403: Forbidden

jaimeMF · 2014-02-04T21:46:57Z

Ok, this is fixed in our repo (see #2304), but a new version haven't been released yet. I'm closing this issue, but you can subscribe to the one I have linked to get notified when a new version is released. Thanks for the report.

By the way, when you use the -v option you should also get some lines at the start like this:

[debug] System config: []
[debug] User config: ['--write-info-json', '--write-thumbnail']
[debug] Command-line args: ['http://www.youtube.com/watch?v=io2WOQ-3aVs']
[debug] Encodings: locale 'UTF-8', fs 'utf-8', out 'UTF-8', pref: 'UTF-8'
[debug] youtube-dl version 2014.02.04
[debug] Python version 3.3.3 - Darwin-13.0.0-x86_64-i386-64bit
[debug] Proxy map: {}

If you report other issue, please also include that part. This info is really useful, among other things because it contains the youtube-dl version, the operating system and the options you have used. This helps us when debugging problems.

JacobHeubner · 2014-02-04T21:49:16Z

thanks very much. I couldn't capture that data, as it was basted off the screen, by the repeated messages. I will subscribe so I can get the fix.

phihag · 2014-02-04T22:30:13Z

You can simply redirect the output to a file to get the full one.

In any case, this issue should be fixed in youtube-dl 2014.02.04.1. Type youtube-dl -U to update. Thank you for the report.

jaimeMF closed this Feb 4, 2014

ytdl-org / youtube-dl

Unsupported JS expression u'$y(a,7)' #2311

Unsupported JS expression u'$y(a,7)' #2311

JacobHeubner commented Feb 4, 2014

jaimeMF commented Feb 4, 2014

JacobHeubner commented Feb 4, 2014

phihag commented Feb 4, 2014

ytdl-org / youtube-dl

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Unsupported JS expression u'$y(a,7)' #2311

Unsupported JS expression u'$y(a,7)' #2311

Comments

JacobHeubner commented Feb 4, 2014

jaimeMF commented Feb 4, 2014

JacobHeubner commented Feb 4, 2014

phihag commented Feb 4, 2014

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