[udemy] FORBIDDEN lecture JSON metadata on a fully free course

[rautamiekka]

Please follow the guide below

• You will be asked some questions and requested to provide some information, please read them carefully and answer honestly
• Put an x into all the boxes [ ] relevant to your issue (like this: [x])
• Use the Preview tab to see what your issue will actually look like

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Make sure you are using the latest version: run youtube-dl --version and ensure your version is 2017.11.15. If it's not, read this FAQ entry and update. Issues with outdated version will be rejected.

• [x] I've verified and I assure that I'm running youtube-dl 2017.11.15

Before submitting an issue make sure you have:

• [x] At least skimmed through the README, most notably the FAQ and BUGS sections
• [x] Searched the bugtracker for similar issues including closed ones

What is the purpose of your issue?

• [x] Bug report (encountered problems with youtube-dl)
• [ ] Site support request (request for adding support for a new site)
• [ ] Feature request (request for a new functionality)
• [ ] Question
• [ ] Other

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The following sections concretize particular purposed issues, you can erase any section (the contents between triple ---) not applicable to your issue

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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:

Add the -v flag to your command line you run youtube-dl with (youtube-dl -v <your command line>), copy the whole output and insert it here. It should look similar to one below (replace it with your log inserted between triple ```):

Using bestvideo+bestaudio/best:

C:\Users\jaervinen\Desktop>"python.exe" "G:\_DOWNLOADS_\youtube-dl.pyc" --ignore-config --verbose --verbose --ignore-errors --no-mark-watched --format "bestvideo+bestaudio/best" --audio-format best --audio-quality 0 --ffmpeg-location "C:/Users/Public/Downloads/ffmpeg/bin/" --output "C:\Users\jaervinen\Desktop\_YouTube_/%(uploader_id)s"/"%(title)s %(resolution)s #%(id)s#.%(ext)s" -x --no-playlist --console-title --no-mtime --buffer-size 10M --retries infinite --continue --no-overwrites --fragment-retries infinite "https://www.udemy.com/free-learn-c-tutorial-beginners/learn/v4/t/lecture/1348876"
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['--ignore-config', '--verbose', '--verbose', '--ignore-errors', '--no-mark-watched', '--format', 'bestvideo+bestaudio/best', '--audio-format', 'best', '--audio-quality', '0', '--ffmpeg-location', 'C:/Users/Public/Downloads/ffmpeg/bin/', '--output', 'C:\\Users\\jaervinen\\Desktop\\_YouTube_/%(uploader_id)s/%(title)s %(resolution)s #%(id)s#.%(ext)s', '-x', '--no-playlist', '--console-title', '--no-mtime', '--buffer-size', '10M', '--retries', 'infinite', '--continue', '--no-overwrites', '--fragment-retries', 'infinite', 'https://www.udemy.com/free-learn-c-tutorial-beginners/learn/v4/t/lecture/1348876']
[debug] Encodings: locale cp1252, fs utf-8, out utf-8, pref cp1252
[debug] youtube-dl version 2017.11.15
[debug] Python version 3.6.3 - Windows-7-6.1.7601-SP1
[debug] exe versions: ffmpeg N-87257-g8e17cd2, ffprobe N-87257-g8e17cd2
[debug] Proxy map: {}
[udemy] 1348876: Downloading webpage
[udemy] 1348876: Downloading lecture JSON
[udemy] 288: Enrolling in the course
[udemy] 1348876: Downloading lecture JSON
ERROR: Unable to download JSON metadata: HTTP Error 403: FORBIDDEN (caused by <HTTPError 403: 'FORBIDDEN'>); please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; type  youtube-dl -U  to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.
  File "G:\_DOWNLOADS_\youtube-dl.pyc\youtube_dl\extractor\common.py", line 506, in _request_webpage
    return self._downloader.urlopen(url_or_request)
  File "G:\_DOWNLOADS_\youtube-dl.pyc\youtube_dl\YoutubeDL.py", line 2196, in urlopen
    return self._opener.open(req, timeout=self._socket_timeout)
  File "C:\ProgramData\Anaconda3\lib\urllib\request.py", line 532, in open
    response = meth(req, response)
  File "C:\ProgramData\Anaconda3\lib\urllib\request.py", line 642, in http_response
    'http', request, response, code, msg, hdrs)
  File "C:\ProgramData\Anaconda3\lib\urllib\request.py", line 570, in error
    return self._call_chain(*args)
  File "C:\ProgramData\Anaconda3\lib\urllib\request.py", line 504, in _call_chain
    result = func(*args)
  File "C:\ProgramData\Anaconda3\lib\urllib\request.py", line 650, in http_error_default
    raise HTTPError(req.full_url, code, msg, hdrs, fp)

Using best (command copypasted from above with the change into a new Command Prompt):

G:\>"python.exe" "G:\_DOWNLOADS_\youtube-dl.pyc" --ignore-config --verbose --verbose --ignore-errors --no-mark-watched --format "best" --audio-format best --audio-quality 0 --ffmpeg-location "C:/Users/Public/Downloads/ffmpeg/bin/" --output "C:\Users\jaervinen\Desktop\_YouTube_/%(uploader_id)s"/"%(title)s %(resolution)s #%(id)s#.%(ext)s" -x --no-playlist --console-title --no-mtime --buffer-size 10M --retries infinite --continue --no-overwrites --fragment-retries infinite "https://www.udemy.com/free-learn-c-tutorial-beginners/learn/v4/t/lecture/1348876"
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['--ignore-config', '--verbose', '--verbose', '--ignore-errors', '--no-mark-watched', '--format', 'best', '--audio-format', 'best', '--audio-quality', '0', '--ffmpeg-location', 'C:/Users/Public/Downloads/ffmpeg/bin/', '--output', 'C:\\Users\\jaervinen\\Desktop\\_YouTube_/%(uploader_id)s/%(title)s %(resolution)s #%(id)s#.%(ext)s', '-x', '--no-playlist', '--console-title', '--no-mtime', '--buffer-size', '10M', '--retries', 'infinite', '--continue', '--no-overwrites', '--fragment-retries', 'infinite', 'https://www.udemy.com/free-learn-c-tutorial-beginners/learn/v4/t/lecture/1348876']
[debug] Encodings: locale cp1252, fs utf-8, out utf-8, pref cp1252
[debug] youtube-dl version 2017.11.15
[debug] Python version 3.6.3 - Windows-7-6.1.7601-SP1
[debug] exe versions: ffmpeg N-87257-g8e17cd2, ffprobe N-87257-g8e17cd2
[debug] Proxy map: {}
[udemy] 1348876: Downloading webpage
[udemy] 1348876: Downloading lecture JSON
[udemy] 288: Enrolling in the course
[udemy] 1348876: Downloading lecture JSON
ERROR: Unable to download JSON metadata: HTTP Error 403: FORBIDDEN (caused by <HTTPError 403: 'FORBIDDEN'>); please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; type  youtube-dl -U  to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.
  File "G:\_DOWNLOADS_\youtube-dl.pyc\youtube_dl\extractor\common.py", line 506, in _request_webpage
    return self._downloader.urlopen(url_or_request)
  File "G:\_DOWNLOADS_\youtube-dl.pyc\youtube_dl\YoutubeDL.py", line 2196, in urlopen
    return self._opener.open(req, timeout=self._socket_timeout)
  File "C:\ProgramData\Anaconda3\lib\urllib\request.py", line 532, in open
    response = meth(req, response)
  File "C:\ProgramData\Anaconda3\lib\urllib\request.py", line 642, in http_response
    'http', request, response, code, msg, hdrs)
  File "C:\ProgramData\Anaconda3\lib\urllib\request.py", line 570, in error
    return self._call_chain(*args)
  File "C:\ProgramData\Anaconda3\lib\urllib\request.py", line 504, in _call_chain
    result = func(*args)
  File "C:\ProgramData\Anaconda3\lib\urllib\request.py", line 650, in http_error_default
    raise HTTPError(req.full_url, code, msg, hdrs, fp)

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Description of your issue, suggested solution and other information

The lecture JSON metadata fetching fails due to FORBIDDEN error although the course is fully free, not discounted.

[dstftw]

You did not provide account credentials.

[rautamiekka]

Confirmed it needs the --username and --password. I were only assuming youtube-dl can do it without.

[dstftw]

It's technically impossible to do this without valid credentials.