Vimeo Error: CERTIFICATE_VERIFY_FAILED

[marteaurouge]

The last 24 hours i encountered this error:
ERROR: unable to download video data: <urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:581)>

[dstftw]

Post the full output of youtube-dl when run with -v, i.e. add -v flag to your command line, copy the whole output and post it in the issue body wrapped in ``` for better formatting. It should look similar to this:

$ youtube-dl -v http://www.youtube.com/watch?v=BaW_jenozKcj
[debug] System config: []
[debug] User config: []
[debug] Command-line args: [u'-v', u'http://www.youtube.com/watch?v=BaW_jenozKcj']
[debug] Encodings: locale cp1251, fs mbcs, out cp866, pref cp1251
[debug] youtube-dl version 2015.12.06
[debug] Git HEAD: 135392e
[debug] Python version 2.6.6 - Windows-2003Server-5.2.3790-SP2
[debug] exe versions: ffmpeg N-75573-g1d0487f, ffprobe N-75573-g1d0487f, rtmpdump 2.4
[debug] Proxy map: {}
...

Do not post screenshots of verbose log only plain text is acceptable.

The output (including the first lines) contains important debugging information. Issues without the full output are often not reproducible and therefore do not get solved in short order, if ever.

[marteaurouge]

$ youtube-dl -v https://vimeo.com/155086124

[debug] System config: []
[debug] User config: []
[debug] Command-line args: [u'-v', u'https://vimeo.com/155086124']
[debug] Encodings: locale UTF-8, fs UTF-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2016.02.13
[debug] Python version 2.7.9 - Linux-3.16.0-4-amd64-x86_64-with-debian-8.3
[debug] exe versions: rtmpdump 2.4
[debug] Proxy map: {}
[vimeo] 155086124: Downloading webpage
[vimeo] 155086124: Extracting information
[vimeo] 155086124: Downloading webpage
[vimeo] 155086124: Downloading JSON metadata
[vimeo] 155086124: Downloading m3u8 information
[debug] Invoking downloader on u'https://skyfiregcs-a.akamaihd.net/exp=1455783189~acl=%2A%2F480598923.mp4%2A~hmac=56930b0defd943c8cf877cc6b4feff1f59656abb7a67bdfc94c3c8c534309806/2tierchgci/vimeo-prod-skyfire-std-us/01/1017/6/155086124/480598923.mp4'
ERROR: unable to download video data: <urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:581)>
Traceback (most recent call last):
  File "/usr/local/lib/python2.7/dist-packages/youtube_dl/YoutubeDL.py", line 1624, in process_info
    success = dl(filename, info_dict)
  File "/usr/local/lib/python2.7/dist-packages/youtube_dl/YoutubeDL.py", line 1566, in dl
    return fd.download(name, info)
  File "/usr/local/lib/python2.7/dist-packages/youtube_dl/downloader/common.py", line 343, in download
    return self.real_download(filename, info_dict)
  File "/usr/local/lib/python2.7/dist-packages/youtube_dl/downloader/http.py", line 58, in real_download
    data = self.ydl.urlopen(request)
  File "/usr/local/lib/python2.7/dist-packages/youtube_dl/YoutubeDL.py", line 1905, in urlopen
    return self._opener.open(req, timeout=self._socket_timeout)
  File "/usr/lib/python2.7/urllib2.py", line 431, in open
    response = self._open(req, data)
  File "/usr/lib/python2.7/urllib2.py", line 449, in _open
    '_open', req)
  File "/usr/lib/python2.7/urllib2.py", line 409, in _call_chain
    result = func(*args)
  File "/usr/local/lib/python2.7/dist-packages/youtube_dl/utils.py", line 830, in https_open
    req, **kwargs)
  File "/usr/lib/python2.7/urllib2.py", line 1197, in do_open
    raise URLError(err)
URLError: <urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:581)>

[marteaurouge]

using --no-check-certificate fix the problem