unable to download video data: <urlopen error [Errno 8] nodename nor servname provided, or not known>

[shshank]

$ youtube-dl -t http://www.youtube.com/watch?v=Yr14Io0wsiU
[youtube] Setting language
[youtube] Yr14Io0wsiU: Downloading webpage
[youtube] Yr14Io0wsiU: Downloading video info webpage
[youtube] Yr14Io0wsiU: Extracting video information
ERROR: unable to download video data: urlopen error [Errno 8] nodename nor servname provided, or not known

This is with 2014.06.26, on OSX 10.9.2

Please tell me how can I provide more information to help troubleshoot this problem.
Thanks a lot.

[dstftw]

Post the full output you get when running with --verbose option

[shshank]

$ youtube-dl -t --verbose http://www.youtube.com/watch?v=Yr14Io0wsiU
[debug] System config: []
[debug] User config: []
[debug] Command-line args: ['-t', '--verbose', 'http://www.youtube.com/watch?v=Yr14Io0wsiU']
[debug] Encodings: locale UTF-8, fs utf-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2014.06.26
[debug] Python version 2.7.5 - Darwin-13.1.0-x86_64-i386-64bit
[debug] Proxy map: {}
[youtube] Setting language
[youtube] Yr14Io0wsiU: Downloading webpage
[youtube] Yr14Io0wsiU: Downloading video info webpage
[youtube] Yr14Io0wsiU: Extracting video information
ERROR: unable to download video data: <urlopen error [Errno 8] nodename nor servname provided, or not known>
Traceback (most recent call last):
File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 1020, in process_info
success = dl(filename, info_dict)
File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 996, in dl
return fd.download(name, info)
File "/usr/local/bin/youtube-dl/youtube_dl/downloader/common.py", line 291, in download
return self.real_download(filename, info_dict)
File "/usr/local/bin/youtube-dl/youtube_dl/downloader/http.py", line 58, in real_download
data = self.ydl.urlopen(request)
File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 1225, in urlopen
return self._opener.open(req, timeout=self._socket_timeout)
File "/usr/local/Cellar/python/2.7.5/Frameworks/Python.framework/Versions/2.7/lib/python2.7/urllib2.py", line 404, in open
response = self._open(req, data)
File "/usr/local/Cellar/python/2.7.5/Frameworks/Python.framework/Versions/2.7/lib/python2.7/urllib2.py", line 422, in _open
'_open', req)
File "/usr/local/Cellar/python/2.7.5/Frameworks/Python.framework/Versions/2.7/lib/python2.7/urllib2.py", line 382, in _call_chain
result = func(*args)
File "/usr/local/bin/youtube-dl/youtube_dl/utils.py", line 591, in https_open
return self.do_open(HTTPSConnectionV3, req)
File "/usr/local/Cellar/python/2.7.5/Frameworks/Python.framework/Versions/2.7/lib/python2.7/urllib2.py", line 1184, in do_open
raise URLError(err)
URLError: urlopen error [Errno 8] nodename nor servname provided, or not known

[cyberjacob]

Sounds like you might have a DNS problem, could you confirm your internet connection is working correctly?

Use something like ping www.youtube.com to check.

[Knight1]

This also shows up if you force IPv6 but IPv6 is not routable, disabled, what ever.