Cant Download Single Video from Youtube

[xdarshh]

• I've verified and I assure that I'm running youtube-dl 2016.11.08.1

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• At least skimmed through README and most notably 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

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

$ youtube-dl -v <youtube-dl -f 'bestvideo[ext=mp4]+bestaudio[ext=m4a]/bestvideo+bestaudio' -v --merge-output-format mp4 “http://www.youtube.com/watch?v=KWZGAExj-es”>
[debug] System config: []
[debug] User config: []
[debug] Command-line args: [u'-f', u'bestvideo[ext=mp4]+bestaudio[ext=m4a]/bestvideo+bestaudio', u'-v', u'--merge-output-format', u'mp4', u'\u201chttp://www.youtube.com/watch?v=KWZGAExj-es\u201d']
[debug] Encodings: locale UTF-8, fs utf-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2016.11.08.1
[debug] Python version 2.7.12 - Darwin-16.1.0-x86_64-i386-64bit
[debug] exe versions: ffmpeg 3.2, ffprobe 3.2
[debug] Proxy map: {}
WARNING: The url doesn't specify the protocol, trying with http
[generic] watch?v=KWZGAExj-es”: Requesting header
WARNING: Could not send HEAD request to http://“http://www.youtube.com/watch?v=KWZGAExj-es”: nonnumeric port: '-hw3b'
[generic] watch?v=KWZGAExj-es”: Downloading webpage
ERROR: Unable to download webpage: nonnumeric port: '-hw3b' (caused by InvalidURL(u"nonnumeric port: '-hw3b'",)); 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 404, in _request_webpage
    return self._downloader.urlopen(url_or_request)
  File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 2001, in urlopen
    return self._opener.open(req, timeout=self._socket_timeout)
  File "/usr/local/Cellar/python/2.7.12_2/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/2.7.12_2/Frameworks/Python.framework/Versions/2.7/lib/python2.7/urllib2.py", line 447, in _open
    '_open', req)
  File "/usr/local/Cellar/python/2.7.12_2/Frameworks/Python.framework/Versions/2.7/lib/python2.7/urllib2.py", line 407, in _call_chain
    result = func(*args)
  File "/usr/local/bin/youtube-dl/youtube_dl/utils.py", line 872, in http_open
    req)
  File "/usr/local/Cellar/python/2.7.12_2/Frameworks/Python.framework/Versions/2.7/lib/python2.7/urllib2.py", line 1167, in do_open
    h = http_class(host, timeout=req.timeout, **http_conn_args)
  File "/usr/local/bin/youtube-dl/youtube_dl/utils.py", line 809, in _create_http_connection
    hc = http_class(*args, **kwargs)
  File "/usr/local/Cellar/python/2.7.12_2/Frameworks/Python.framework/Versions/2.7/lib/python2.7/httplib.py", line 751, in __init__
    (self.host, self.port) = self._get_hostport(host, port)
  File "/usr/local/Cellar/python/2.7.12_2/Frameworks/Python.framework/Versions/2.7/lib/python2.7/httplib.py", line 792, in _get_hostport
    raise InvalidURL("nonnumeric port: '%s'" % host[i+1:])
<end of log>

Description of your issue, suggested solution and other information

i tried to download single video before with the same config and it was working but now it doesn't

[yan12125]

The problem are the symbols: “ and ”. They are not quotation marks ("), so they aren't recognized