[youtube.com] Unable to download some videos

[Goothaa4]

• [x ] I've verified and I assure that I'm running youtube-dl 2017.08.23
  user@localhost:~$ youtube-dl --version
  2017.08.23

• [x ] At least skimmed through the README, most notably the FAQ and BUGS sections

• [ x] Searched the bugtracker for similar issues including closed ones

There doesn't seem to be any bugs like this already listed as of 25 Aug.

What is the purpose of your issue?

• [ x] 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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The following sections concretize particular purposed issues, you can erase any section (the contents between triple ---) not applicable to your issue

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This is a bug report.

USER@LOCALHOST:~$ youtube-dl -v https://www.youtube.com/watch?v=6SJNVb0GnPI
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: [u'-v', u'https://www.youtube.com/watch?v=6SJNVb0GnPI']
[debug] Encodings: locale UTF-8, fs UTF-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2017.08.23
[debug] Python version 2.7.12 - Linux-4.4.0-92-generic-x86_64-with-Ubuntu-16.04-xenial
[debug] exe versions: ffmpeg 2.8.11-0ubuntu0.16.04.1, ffprobe 2.8.11-0ubuntu0.16.04.1, rtmpdump 2.4
[debug] Proxy map: {}
[youtube] 6SJNVb0GnPI: Downloading webpage
[youtube] 6SJNVb0GnPI: Downloading video info webpage
Traceback (most recent call last):
  File "/usr/lib/python2.7/runpy.py", line 174, in _run_module_as_main
    "__main__", fname, loader, pkg_name)
  File "/usr/lib/python2.7/runpy.py", line 72, in _run_code
    exec code in run_globals
  File "/usr/local/bin/youtube-dl/__main__.py", line 19, in <module>
  File "/usr/local/bin/youtube-dl/youtube_dl/__init__.py", line 465, in main
  File "/usr/local/bin/youtube-dl/youtube_dl/__init__.py", line 455, in _real_main
  File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 1958, in download
  File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 776, in extract_info
  File "/usr/local/bin/youtube-dl/youtube_dl/extractor/common.py", line 434, in extract
  File "/usr/local/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 1596, in _real_extract
ValueError: invalid literal for int() with base 10: ''

Description of your issue, suggested solution and other information

This only seems to happen on some youtube videos. It hasn't happened before. I don't quite understand the output so I don't know what else to say about it.

[ftc2]

youtube says for that video:

The following content has been identified by the YouTube community as inappropriate or offensive to some audiences.

https://github.com/rg3/youtube-dl/blob/master/youtube_dl/extractor/youtube.py#L1596

it looks like 'inappropriate' videos don't display viewcount. maybe missing viewcount isn't properly handled yet, and it's trying to do int(None) or something like that.

[Hrxn]

Duplicate of #14029

[ftc2]

actually it's doing int(u''), but you knew that