404 error on youtube playlist download

[jimblue]

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Make sure you are using the latest version: run youtube-dl --version and ensure your version is 2017.10.01. 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 Issues with outdated version will be rejected.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 2017.10.01

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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 the -v flag to your command line you run youtube-dl with (youtube-dl -v <your command line>), 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 'https://www.youtube.com/playlist\?list\=PL24-C9Bhqc8fEv7wbchURZa6JuKZHNPpB' -f 'bestvideo[ext=mp4]+bestaudio[ext=m4a]/best[ext=mp4]/best' -o '%(playlist)s/%(playlist_index)s - %(title)s.%(ext)s' -v
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: [u'https://www.youtube.com/playlist\\?list\\=PL24-C9Bhqc8fEv7wbchURZa6JuKZHNPpB', u'-f', u'bestvideo[ext=mp4]+bestaudio[ext=m4a]/best[ext=mp4]/best', u'-o', u'%(playlist)s/%(playlist_index)s - %(title)s.%(ext)s', u'-v']
[debug] Encodings: locale UTF-8, fs utf-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2017.10.01
[debug] Python version 2.7.10 - Darwin-16.7.0-x86_64-i386-64bit
[debug] exe versions: none
[debug] Proxy map: {}
[youtube:user] playlist: Downloading channel page
WARNING: Unable to download webpage: HTTP Error 404: Not Found
[youtube:user] playlist: Downloading page #1
ERROR: Unable to download webpage: HTTP Error 404: Not Found (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 503, in _request_webpage return self._downloader.urlopen(url_or_request)
File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 2184, in urlopen
return self._opener.open(req, timeout=self._socket_timeout)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/urllib2.py", line 437, in open response = meth(req, response)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/urllib2.py", line 550, in http_response 'http', request, response, code, msg, hdrs)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/urllib2.py", line 475, in error return self._call_chain(*args)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/urllib2.py", line 409, in _call_chain result = func(*args)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/urllib2.py", line 558, in http_error_default raise HTTPError(req.get_full_url(), code, msg, hdrs, fp)
<end of log>

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Description of your issue, suggested solution and other information

I've trouble to download a youtube playlist. I'm getting a HTTP Error 404, but the playlist is online...

[dstftw]

Remove superfluous escaping.

[jimblue]

@dstftw done!