certificate verify failed _ssl.c: 720 #12348

Celthi · 2017-03-04T07:18:13Z

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Bug report (encountered problems with youtube-dl)
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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

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 --proxy 127.0.0.1:8087 https://www.youtube.com/watch?v=iKDtmV5xSv0 -v
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['--proxy', '127.0.0.1:8087', 'https://www.youtube.com/watch?v=iKDtmV5xSv0', '-v']
[debug] Encodings: locale cp936, fs mbcs, out cp936, pref cp936
[debug] youtube-dl version 2017.03.02
[debug] Python version 3.5.3 - Windows-10-10.0.10240-SP0
[debug] exe versions: none
[debug] Proxy map: {'http': '127.0.0.1:8087', 'https': '127.0.0.1:8087'}
[youtube] iKDtmV5xSv0: Downloading webpage
ERROR: Unable to download webpage: <urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:720)> (caused by URLError(SSLError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:720)'),))
  File "c:\users\celhipc\python35\lib\site-packages\youtube_dl\extractor\common.py", line 496, in _request_webpage
    return self._downloader.urlopen(url_or_request)
  File "c:\users\celhipc\python35\lib\site-packages\youtube_dl\YoutubeDL.py", line 2093, in urlopen
    return self._opener.open(req, timeout=self._socket_timeout)
  File "c:\users\celhipc\python35\lib\urllib\request.py", line 466, in open
    response = self._open(req, data)
  File "c:\users\celhipc\python35\lib\urllib\request.py", line 484, in _open
    '_open', req)
  File "c:\users\celhipc\python35\lib\urllib\request.py", line 444, in _call_chain
    result = func(*args)
  File "c:\users\celhipc\python35\lib\site-packages\youtube_dl\utils.py", line 1083, in https_open
    req, **kwargs)
  File "c:\users\celhipc\python35\lib\urllib\request.py", line 1256, in do_open
    raise URLError(err)
...
<end of log>

Description of your issue, suggested solution and other information

running youtube-dl in win 10 and the python version is 3.5.3. I have searched many issue about certificate very failed, and try the comment1 and other methods, but they don't work. And I notice the verify failed number is verify failed (_ssl.c:720), is different from what have posted, like 600, 581 and more. I have use google to search the exact number on the issues, and found none.

if add the flag --no-check-certificate, it will work.

yan12125 · 2017-03-04T08:54:09Z

I guess you're using XX-net or other GAE (Google App Engine) based proxies? If so --no-check-certificate is the only solution.

Celthi · 2017-03-04T09:18:23Z

yeach, I'm using GAE as proxy, but it worked well before. I dont remember the exact version, since I upgrade, I got the problem. Is there a way to roll back a lower version of youtube-dl

yan12125 · 2017-03-04T09:20:57Z

it worked well before

That's interesting. Maybe you were using some older Python versions before? Certificate verification wasn't enabled until Python 2.7.9.

Celthi · 2017-03-04T09:25:57Z

Yeah, it is the python 2.7.9

yan12125 · 2017-03-04T17:58:29Z

Do you mean 2.7.9 works but 3.5.3 fails? I might be inaccurate. I meant, In Python 2.x, up to 2.7.8, doesn't verify certificates, so there won't be errors. Since 2.7.9, it would work the same as all 3.x versions.

Celthi · 2017-03-05T01:12:59Z

I don't remember the exact version, but definitely is either 2.7.9 or 3.4. Because my computer only have these two version python when youtube-dl worked fine.

And in March 3, 3rd, I installed 3.6 version, and then 3.5 versioned, and in these two version I use pip install youtube-dl to install youtube-dl, then the verify certificate failed problem came out.

I try different solutions, the problem keep switch from ssl.c 600 to ssl.c 720. Note, I try to solve ssl.c 600 use comment, and didn't work.

When was certificates verification added to youtube-dl? Is it always there? My environment is completed messy.

yan12125 · 2017-03-05T12:14:22Z

When was certificates verification added to youtube-dl?

Yes it's always there. The verification is performed by the underlying Python, not youtube-dl.

Could you paste verbose logs of youtube-dl -v "some video URL" both both a working and a broken version?

Celthi · 2017-03-05T12:44:24Z

I have updated all the youtube-dl to the version 2017.3.02, so now they all not working. And the working case related to a older version of youtube-dl. Is there a link to download the old version youtube-dl, so I could try to reproduce the working logs.

yan12125 · 2017-03-05T13:04:39Z

In https://rg3.github.io/youtube-dl/update/versions.json, there are URLs of versions since 2012.02.22. Please tell me if you need even older versions.

Celthi · 2017-03-05T13:15:46Z

This is fair enough. Now I will try to reproduce it.

yan12125 · 2017-03-05T13:33:55Z

Well, lots of URLs in versions.json are dead. Specificially, files uploaded before #9690 are not moved to Github, so they'll end up with 404.

Files on https://pypi.org/project/youtube_dl/#history are still fine. As you're already using pip, you can install old versions with ==. For example:

pip install youtube_dl==2013.01.17.1 --user

Celthi · 2017-03-05T13:34:36Z

I have try many version of youtube-dl, but the problem cant reproduce. And I switch different proxy the problem is gone. SO the problem is the the proxy I'm using(There must something changed, but I can't roll all the things back). And the problem is beyond the scope of youtube-dl, So I just use no-check-certificate. Very appreciate your help.

yan12125 · 2017-03-05T13:40:30Z

OK. I'll closing it first as apparently it's not directly related to youtube-dl. Feel free to post your new findings if any.

yan12125 closed this Mar 5, 2017

ytdl-org / youtube-dl

certificate verify failed _ssl.c: 720 #12348

certificate verify failed _ssl.c: 720 #12348

Celthi commented Mar 4, 2017 •

edited

yan12125 commented Mar 4, 2017

Celthi commented Mar 4, 2017 •

edited

yan12125 commented Mar 4, 2017

Celthi commented Mar 4, 2017 •

edited

yan12125 commented Mar 4, 2017

Celthi commented Mar 5, 2017

yan12125 commented Mar 5, 2017

Celthi commented Mar 5, 2017

yan12125 commented Mar 5, 2017

Celthi commented Mar 5, 2017

yan12125 commented Mar 5, 2017

Celthi commented Mar 5, 2017 •

edited

yan12125 commented Mar 5, 2017

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certificate verify failed _ssl.c: 720 #12348

certificate verify failed _ssl.c: 720 #12348

Comments

Celthi commented Mar 4, 2017 • edited

Please follow the guide below

Make sure you are using the latest version: run youtube-dl --version and ensure your version is 2017.03.02. If it's not read this FAQ entry and update. Issues with outdated version will be rejected.

Before submitting an issue make sure you have:

What is the purpose of your issue?

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

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:

Description of your issue, suggested solution and other information

yan12125 commented Mar 4, 2017

Celthi commented Mar 4, 2017 • edited

yan12125 commented Mar 4, 2017

Celthi commented Mar 4, 2017 • edited

yan12125 commented Mar 4, 2017

Celthi commented Mar 5, 2017

yan12125 commented Mar 5, 2017

Celthi commented Mar 5, 2017

yan12125 commented Mar 5, 2017

Celthi commented Mar 5, 2017

yan12125 commented Mar 5, 2017

Celthi commented Mar 5, 2017 • edited

yan12125 commented Mar 5, 2017

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Celthi commented Mar 4, 2017 •

edited

Make sure you are using the latest version: run `youtube-dl --version` and ensure your version is 2017.03.02. If it's not read this FAQ entry and update. Issues with outdated version will be rejected.

Celthi commented Mar 4, 2017 •

edited

Celthi commented Mar 4, 2017 •

edited

Celthi commented Mar 5, 2017 •

edited