stopped working on nova.cz since last week

[ivopan]

Please follow the guide below

• You will be asked some questions and requested to provide some information, please read them carefully and answer honestly
• Put an x into all the boxes [ ] relevant to your issue (like this: [x])
• Use the Preview tab to see what your issue will actually look like

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Make sure you are using the latest version: run youtube-dl --version and ensure your version is 2018.11.18. 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 Issues with outdated version will be rejected.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 2018.11.18

Before submitting an issue make sure you have:

• At least skimmed through the README, most notably the FAQ and BUGS sections
• Searched the bugtracker for similar issues including closed ones
• Checked that provided video/audio/playlist URLs (if any) are alive and playable in a browser

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

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[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: [u'--no-check-certificate', u'--verbose', u'https://novaplus.nova.cz/porad/profesor-t/epizoda/26608-4-dil-dvoji-zivot']
[debug] Encodings: locale UTF-8, fs UTF-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2018.11.18
[debug] Python version 2.7.15rc1 (CPython) - Linux-4.15.0-39-generic-x86_64-with-Ubuntu-18.04-bionic
[debug] exe versions: none
[debug] Proxy map: {}
[Nova] 26608-4-dil-dvoji-zivot: Downloading webpage
[NovaEmbed] utbyr0: Downloading webpage
ERROR: Unable to extract formats; 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.
Traceback (most recent call last):
  File "/home/ivop/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 792, in extract_info
    ie_result = ie.extract(url)
  File "/home/ivop/bin/youtube-dl/youtube_dl/extractor/common.py", line 508, in extract
    ie_result = self._real_extract(url)
  File "/home/ivop/bin/youtube-dl/youtube_dl/extractor/nova.py", line 38, in _real_extract
    r'(?s)bitrates\s*=\s*({.+?})\s*;', webpage, 'formats'),
  File "/home/ivop/bin/youtube-dl/youtube_dl/extractor/common.py", line 983, in _search_regex
    raise RegexNotFoundError('Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract formats; 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.

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Until last week youtube-dl downloaded video with no problem. I have upgraded to recent version but verbose output shows the same error. Perhaps something has changed.

[remitamine]

youtube-dl https://novaplus.nova.cz/porad/profesor-t/epizoda/26608-4-dil-dvoji-zivot
[Nova] 26608-4-dil-dvoji-zivot: Downloading webpage
[NovaEmbed] utbyr0: Downloading webpage
[download] Destination:  Profesor T. Dvojí život B068824-utbyr0.mp4
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  1  579M    1 6799k    0     0   693k      0  0:14:14  0:00:09  0:14:05  818k

[ivopan]

Hmm,

can I somehow make it more verbose than using switch --verbose ?

While it shows the same error on two different machines on two different external IP.
Both are ubuntu 18.04.1 LTS (up-to-date), one of them is not desktop, just server.

I have upgraded youtube-dl on both before sending report.

Just now I have installed fresh on another machine (again ubuntu 18.04.1, different IP) with exactly the same result:

# ./youtube-dl --verbose https://novaplus.nova.cz/porad/profesor-t/epizoda/26608-4-dil-dvoji-zivot
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: [u'--verbose', u'https://novaplus.nova.cz/porad/profesor-t/epizoda/26608-4-dil-dvoji-zivot']
[debug] Encodings: locale UTF-8, fs UTF-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2018.11.18
[debug] Python version 2.7.15rc1 (CPython) - Linux-4.15.0-36-generic-x86_64-with-Ubuntu-18.04-bionic
[debug] exe versions: none
[debug] Proxy map: {}
[Nova] 26608-4-dil-dvoji-zivot: Downloading webpage
[NovaEmbed] 1cznkgo: Downloading webpage
ERROR: Unable to extract formats; 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.
Traceback (most recent call last):
  File "./youtube-dl/youtube_dl/YoutubeDL.py", line 792, in extract_info
    ie_result = ie.extract(url)
  File "./youtube-dl/youtube_dl/extractor/common.py", line 508, in extract
    ie_result = self._real_extract(url)
  File "./youtube-dl/youtube_dl/extractor/nova.py", line 38, in _real_extract
    r'(?s)bitrates\s*=\s*({.+?})\s*;', webpage, 'formats'),
  File "./youtube-dl/youtube_dl/extractor/common.py", line 983, in _search_regex
    raise RegexNotFoundError('Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract formats; 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.

The same test on ubuntu 14.04.5 - the same result (different IP):

# ./youtube-dl --verbose https://novaplus.nova.cz/porad/profesor-t/epizoda/26608-4-dil-dvoji-zivot
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: [u'--verbose', u'https://novaplus.nova.cz/porad/profesor-t/epizoda/26608-4-dil-dvoji-zivot']
[debug] Encodings: locale UTF-8, fs UTF-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2018.11.18
[debug] Python version 2.7.6 (CPython) - Linux-3.13.0-141-generic-x86_64-with-Ubuntu-14.04-trusty
[debug] exe versions: none
[debug] Proxy map: {}
[Nova] 26608-4-dil-dvoji-zivot: Downloading webpage
[NovaEmbed] 1cznkgo: Downloading webpage
ERROR: Unable to extract formats; 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.
Traceback (most recent call last):
  File "./youtube-dl/youtube_dl/YoutubeDL.py", line 792, in extract_info
    ie_result = ie.extract(url)
  File "./youtube-dl/youtube_dl/extractor/common.py", line 508, in extract
    ie_result = self._real_extract(url)
  File "./youtube-dl/youtube_dl/extractor/nova.py", line 38, in _real_extract
    r'(?s)bitrates\s*=\s*({.+?})\s*;', webpage, 'formats'),
  File "./youtube-dl/youtube_dl/extractor/common.py", line 983, in _search_regex
    raise RegexNotFoundError('Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract formats; 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.

[dstftw]

Post --dump-pages.

[pajkduf]

Having the same problem primarily with https://novaplus.nova.cz/porad/tvoje-tvar/epizoda/26599-12-dil, confirming (using Python 2.6 and Python 2.7) on above mentioned url using command:
python2.7 ../bin/youtube-dl --verbose --dump-pages https://novaplus.nova.cz/porad/profesor-t/epizoda/26608-4-dil-dvoji-zivot 1>stdout-profesor-t.txt 2>stderr-profesor-t.txt, stdout & stderr files attached.

stderr-profesor-t.txt
stdout-profesor-t.txt

[ivopan]

Ok, including dump and stderr.

dump-stdout.txt
dump-stderr.txt

[pajkduf]

Confirmed the same erratic behavior using more modern Linux with Python 3.4:
python3 youtube-dl --verbose -F https://novaplus.nova.cz/porad/profesor-t/epizoda/26608-4-dil-dvoji-zivot
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['--verbose', '-F', 'https://novaplus.nova.cz/porad/profesor-t/epizoda/26608-4-dil-dvoji-zivot']
[debug] Encodings: locale UTF-8, fs utf-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2018.11.18
[debug] Python version 3.4.3 (CPython) - Linux-3.13.0-161-generic-x86_64-with-Ubuntu-14.04-trusty
[debug] exe versions: avconv 9.20-6, avprobe 9.20-6, ffmpeg 3.4, ffprobe 3.4
[debug] Proxy map: {}
[Nova] 26608-4-dil-dvoji-zivot: Downloading webpage
[NovaEmbed] 1cznkgo: Downloading webpage
ERROR: Unable to extract formats; 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.
Traceback (most recent call last):
File "youtube-dl/youtube_dl/YoutubeDL.py", line 792, in extract_info
ie_result = ie.extract(url)
File "youtube-dl/youtube_dl/extractor/common.py", line 508, in extract
ie_result = self._real_extract(url)
File "youtube-dl/youtube_dl/extractor/nova.py", line 38, in _real_extract
r'(?s)bitrates\s*=\s*({.+?})\s*;', webpage, 'formats'),
File "youtube-dl/youtube_dl/extractor/common.py", line 983, in _search_regex
raise RegexNotFoundError('Unable to extract %s' % _name)
youtube_dl.utils.RegexNotFoundError: Unable to extract formats; 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.

[dstftw]

It's not yet released.

[ivopan]

Actually I do not see what is not yet released !
Do you mean youtube-dl new version ?

Neither can I figure out of what is this issue duplicate.

I think that nova changed its page, I have tried to find that regex

 bitrates = self._parse_json(
            self._search_regex(
                r'(?s)bitrates\s*=\s*({.+?})\s*;', webpage, 'formats'),
            video_id, transform_source=js_to_json)

in downloaded webpage with no success. Unfortunately I have no older (and working) copy.

[ivopan]

Aha, I have found that regex inside second page. Could that mean that youtube-dl performs the regex search in first page, not in the second ?

[dstftw]

I've already pointed out: it's fixed in master but not released.