CeskaTelevize Unable to download webpage

[Pitel]

pi@raspberrypi ~ $ youtube-dl http://www.ceskatelevize.cz/porady/10570561091-stardance-vii/214522160450001-stardance-vii-kdyz-hvezdy-tanci/video/429512
[debug] System config: []
[debug] User config: [u'-v']
[debug] Command-line args: [u'http://www.ceskatelevize.cz/porady/10570561091-stardance-vii/214522160450001-stardance-vii-kdyz-hvezdy-tanci/video/429512']
[debug] Encodings: locale UTF-8, fs UTF-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2015.11.02
[debug] Python version 2.7.3 - Linux-4.1.12+-armv6l-with-debian-7.8
[debug] exe versions: avconv 9.14-6, avprobe 9.14-6
[debug] Proxy map: {}
[CeskaTelevize] 214522160450001-stardance-vii-kdyz-hvezdy-tanci429512: Downloading webpage
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 "/home/pi/bin/youtube-dl/youtube_dl/extractor/common.py", line 329, in _request_webpage
    return self._downloader.urlopen(url_or_request)
  File "/home/pi/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 1873, in urlopen
    return self._opener.open(req, timeout=self._socket_timeout)
  File "/usr/lib/python2.7/urllib2.py", line 407, in open
    response = meth(req, response)
  File "/usr/lib/python2.7/urllib2.py", line 520, in http_response
    'http', request, response, code, msg, hdrs)
  File "/usr/lib/python2.7/urllib2.py", line 445, in error
    return self._call_chain(*args)
  File "/usr/lib/python2.7/urllib2.py", line 379, in _call_chain
    result = func(*args)
  File "/usr/lib/python2.7/urllib2.py", line 528, in http_error_default
    raise HTTPError(req.get_full_url(), code, msg, hdrs, fp)

[mcepl]

I guess, the same thing:

matej@mitmanek: ~$ youtube-dl -v 'http://www.ceskatelevize.cz/porady/10150778447-historie-cs/216452801400033-co-cech-to-muzikant'
[debug] System config: ['--prefer-free-formats']
[debug] User config: []
[debug] Command-line args: ['-v', 'http://www.ceskatelevize.cz/porady/10150778447-historie-cs/216452801400033-co-cech-to-muzikant']
[debug] Encodings: locale UTF-8, fs utf-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2016.11.22
[debug] Python version 3.5.2 - Linux-4.8.10-300.fc25.x86_64-x86_64-with-fedora-25-Twenty_Five
[debug] exe versions: ffmpeg 3.1.5, ffprobe 3.1.5
[debug] Proxy map: {}
[CeskaTelevize] 216452801400033-co-cech-to-muzikant: Downloading webpage
ERROR: Unable to download webpage: HTTP Error 404: Not Found (caused by <HTTPError 404: 'Not Found'>); please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; see  https://yt-dl.org/update  on how to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.
  File "/usr/lib/python3.5/site-packages/youtube_dl/extractor/common.py", line 404, in _request_webpage
    return self._downloader.urlopen(url_or_request)
  File "/usr/lib/python3.5/site-packages/youtube_dl/YoutubeDL.py", line 2000, in urlopen
    return self._opener.open(req, timeout=self._socket_timeout)
  File "/usr/lib64/python3.5/urllib/request.py", line 472, in open
    response = meth(req, response)
  File "/usr/lib64/python3.5/urllib/request.py", line 582, in http_response
    'http', request, response, code, msg, hdrs)
  File "/usr/lib64/python3.5/urllib/request.py", line 510, in error
    return self._call_chain(*args)
  File "/usr/lib64/python3.5/urllib/request.py", line 444, in _call_chain
    result = func(*args)
  File "/usr/lib64/python3.5/urllib/request.py", line 590, in http_error_default
    raise HTTPError(req.full_url, code, msg, hdrs, fp)

matej@mitmanek: ~$ 

And no, @dstftw, I don't think this has anything to do with geographical location. I am sitting in Prague and have only the Czech Internet connection on.

[mcepl]

@sleep-walker, any thoughts on this? Can you reproduce?

[sleep-walker]

Yes, I can reproduce it.
First problem is the replacement on line 94 transforming /porady/... to /ivysilani/... which doesn't seem to work well in this case.
But it is not working yet after that either.

[sleep-walker]

This URL is working: http://www.ceskatelevize.cz/ivysilani/10150778447-historie-cs/

So the task IMHO is to be able to get from http://www.ceskatelevize.cz/porady/10150778447-historie-cs/216452801400033-co-cech-to-muzikant to http://www.ceskatelevize.cz/ivysilani/10150778447-historie-cs/

[sleep-walker]

It's wild guess without actual test but it could look like this instead:

        porady = re.match(r'(https?://www.ceskatelevize.cz)/porady/([^/]+)/.*', url)
        if porady:
            url = porady.group(1) + '/ivysilani/' + porady.group(2)
        url = url.replace('/video/', '')

It would be nice to increase test coverage.

[sleep-walker]

Have you found URLs which won't work with this change? If there is none, I'll prepare patch and merge request...