Unable to download JSON metadata: HTTP Error 401: Unauthorized (caused by HTTPError()) on Udemy

[muhasturk]

➜  ~  youtube-dl https://www.udemy.com/complete-ios-developer-course/\#/lecture/1459618 -u blabla@yandex.com -p there_is_a_password -v
[debug] System config: []
[debug] User config: []
[debug] Command-line args: ['https://www.udemy.com/complete-ios-developer-course/#/lecture/1459618', '-u', u'PRIVATE', '-p', u'PRIVATE', '-v']
[debug] Encodings: locale US-ASCII, fs utf-8, out US-ASCII, pref US-ASCII
[debug] youtube-dl version 2014.11.25.1
[debug] Python version 2.7.8 - Darwin-14.0.0-x86_64-i386-64bit
[debug] exe versions: avconv 11, avprobe 11
[debug] Proxy map: {}
[udemy] Downloading login popup
[udemy] Logging in as blabla@yandex.com
[udemy] 1459618: Downloading lecture JSON
ERROR: Unable to download JSON metadata: HTTP Error 401: Unauthorized (caused by HTTPError()); 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 "/usr/local/bin/youtube-dl/youtube_dl/extractor/common.py", line 273, in _request_webpage
    return self._downloader.urlopen(url_or_request)
  File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 1321, in urlopen
    return self._opener.open(req, timeout=self._socket_timeout)
  File "/usr/local/Cellar/python/2.7.8_2/Frameworks/Python.framework/Versions/2.7/lib/python2.7/urllib2.py", line 410, in open
    response = meth(req, response)
  File "/usr/local/Cellar/python/2.7.8_2/Frameworks/Python.framework/Versions/2.7/lib/python2.7/urllib2.py", line 523, in http_response
    'http', request, response, code, msg, hdrs)
  File "/usr/local/Cellar/python/2.7.8_2/Frameworks/Python.framework/Versions/2.7/lib/python2.7/urllib2.py", line 448, in error
    return self._call_chain(*args)
  File "/usr/local/Cellar/python/2.7.8_2/Frameworks/Python.framework/Versions/2.7/lib/python2.7/urllib2.py", line 382, in _call_chain
    result = func(*args)
  File "/usr/local/Cellar/python/2.7.8_2/Frameworks/Python.framework/Versions/2.7/lib/python2.7/urllib2.py", line 531, in http_error_default
    raise HTTPError(req.get_full_url(), code, msg, hdrs, fp)

➜  ~  youtube-dl --version
2014.11.25.1

Releated:
#2008
#3998
#4124

[dstftw]

Udemy will work again in the next version of youtube-dl. Thanks for the report.

[phihag]

I believe this issue to be been fixed in youtube-dl 2014.11.26.4 and newer. Refer to our FAQ if you encounter problems updating.