SSL certificate_verify_failed

[HollandOates]

Make sure you are using the latest version: run youtube-dl --version and ensure your version is 2017.09.15. If it's not, read this FAQ entry and update. Issues with outdated version will be rejected.

• I've verified and I assure that I'm running youtube-dl 2017.09.15

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

What is the purpose of your issue?

• 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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youtube-dl -v https://www.youtube.com/watch\?v\=kp9EuzwYYxc\&index\=1\&list\=PL66spITrooY7Xnk0BWi_Fyl4NemusHn6Z
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: [u'-v', u'https://www.youtube.com/watch?v=kp9EuzwYYxc&index=1&list=PL66spITrooY7Xnk0BWi_Fyl4NemusHn6Z']
[debug] Encodings: locale UTF-8, fs utf-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2017.09.15
[debug] Python version 2.7.13 - Darwin-16.7.0-x86_64-i386-64bit
[debug] exe versions: none
[debug] Proxy map: {}
[youtube:playlist] Downloading playlist PL66spITrooY7Xnk0BWi_Fyl4NemusHn6Z - add --no-playlist to just download video kp9EuzwYYxc
[youtube:playlist] PL66spITrooY7Xnk0BWi_Fyl4NemusHn6Z: Downloading webpage
ERROR: Unable to download webpage: <urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:661)> (caused by URLError(SSLError(1, u'[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:661)'),))
  File "/usr/local/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 503, in _request_webpage
    return self._downloader.urlopen(url_or_request)
  File "/usr/local/lib/python2.7/site-packages/youtube_dl/YoutubeDL.py", line 2177, in urlopen
    return self._opener.open(req, timeout=self._socket_timeout)
  File "/usr/local/Cellar/python/2.7.13_1/Frameworks/Python.framework/Versions/2.7/lib/python2.7/urllib2.py", line 429, in open
    response = self._open(req, data)
  File "/usr/local/Cellar/python/2.7.13_1/Frameworks/Python.framework/Versions/2.7/lib/python2.7/urllib2.py", line 447, in _open
    '_open', req)
  File "/usr/local/Cellar/python/2.7.13_1/Frameworks/Python.framework/Versions/2.7/lib/python2.7/urllib2.py", line 407, in _call_chain
    result = func(*args)
  File "/usr/local/lib/python2.7/site-packages/youtube_dl/utils.py", line 1086, in https_open
    req, **kwargs)
  File "/usr/local/Cellar/python/2.7.13_1/Frameworks/Python.framework/Versions/2.7/lib/python2.7/urllib2.py", line 1198, in do_open
    raise URLError(err)

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I am unable to download anything from youtube. I've been a happy user for a very long time. Now I don't know what to do.

I saw a similar issue a year ago, but can't find the solution to the issue, so I'm asking for help.

Thanks.

[HollandOates]

What is the solution??

[yan12125]

Most likely: #5317 (comment)