[youtube:subscriptions] HTTP Error 400: Bad Request

deekerman commented

2026-02-21 00:20:07 -05:00

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Originally created by @Uddasa on GitHub (May 23, 2014).

Hi, since today (maybe yesterday) I got this error (the command was working well before) :

$ youtube-dl -o '/home/desktop/Vidéos/Youtube/%(uploader)s - %(title)s.%(ext)s' --download-archive /home/desktop/.mydownloads https://www.youtube.com/feed/subscriptions -u xxxxxxx@gmail.com -p xxxxxxxxx --verbose
[debug] System config: []
[debug] User config: []
[debug] Command-line args: ['-o', '/home/desktop/Vid\xc3\xa9os/Youtube/%(uploader)s - %(title)s.%(ext)s', '--download-archive', '/home/desktop/.mydownloads', 'https://www.youtube.com/feed/subscriptions', '-u', '', '-p', '', '--verbose']
[debug] Encodings: locale UTF-8, fs UTF-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2014.05.19
[debug] Python version 2.7.3 - Linux-3.10.23-xxxx-std-ipv6-64-x86_64-with-Ubuntu-12.04-precise
[debug] Proxy map: {}
[youtube:subscriptions] Downloading login page
[youtube:subscriptions] Logging in
[youtube:subscriptions] subscriptions feed: Downloading page 1
ERROR: Unable to download JSON metadata: HTTP Error 400: Bad Request; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.
File "/usr/bin/youtube-dl/youtube_dl/extractor/common.py", line 196, in _request_webpage
return self._downloader.urlopen(url_or_request)
File "/usr/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 1214, in urlopen
return self._opener.open(req, timeout=self._socket_timeout)
File "/usr/lib/python2.7/urllib2.py", line 406, in open
response = meth(req, response)
File "/usr/lib/python2.7/urllib2.py", line 519, in http_response
'http', request, response, code, msg, hdrs)
File "/usr/lib/python2.7/urllib2.py", line 444, in error
return self._call_chain(_args)
File "/usr/lib/python2.7/urllib2.py", line 378, in _call_chain
result = func(_args)
File "/usr/lib/python2.7/urllib2.py", line 527, in http_error_default
raise HTTPError(req.get_full_url(), code, msg, hdrs, fp)

Originally created by @Uddasa on GitHub (May 23, 2014). Hi, since today (maybe yesterday) I got this error (the command was working well before) : $ youtube-dl -o '/home/desktop/Vidéos/Youtube/%(uploader)s - %(title)s.%(ext)s' --download-archive /home/desktop/.mydownloads https://www.youtube.com/feed/subscriptions -u xxxxxxx@gmail.com -p xxxxxxxxx --verbose [debug] System config: [] [debug] User config: [] [debug] Command-line args: ['-o', '/home/desktop/Vid\xc3\xa9os/Youtube/%(uploader)s - %(title)s.%(ext)s', '--download-archive', '/home/desktop/.mydownloads', 'https://www.youtube.com/feed/subscriptions', '-u', '<PRIVATE>', '-p', '<PRIVATE>', '--verbose'] [debug] Encodings: locale UTF-8, fs UTF-8, out UTF-8, pref UTF-8 [debug] youtube-dl version 2014.05.19 [debug] Python version 2.7.3 - Linux-3.10.23-xxxx-std-ipv6-64-x86_64-with-Ubuntu-12.04-precise [debug] Proxy map: {} [youtube:subscriptions] Downloading login page [youtube:subscriptions] Logging in [youtube:subscriptions] subscriptions feed: Downloading page 1 ERROR: Unable to download JSON metadata: HTTP Error 400: Bad Request; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. File "/usr/bin/youtube-dl/youtube_dl/extractor/common.py", line 196, in _request_webpage return self._downloader.urlopen(url_or_request) File "/usr/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 1214, in urlopen return self._opener.open(req, timeout=self._socket_timeout) File "/usr/lib/python2.7/urllib2.py", line 406, in open response = meth(req, response) File "/usr/lib/python2.7/urllib2.py", line 519, in http_response 'http', request, response, code, msg, hdrs) File "/usr/lib/python2.7/urllib2.py", line 444, in error return self._call_chain(_args) File "/usr/lib/python2.7/urllib2.py", line 378, in _call_chain result = func(_args) File "/usr/lib/python2.7/urllib2.py", line 527, in http_error_default raise HTTPError(req.get_full_url(), code, msg, hdrs, fp)

deekerman closed this issue

2026-02-21 00:20:11 -05:00

deekerman commented

2026-02-21 00:20:12 -05:00

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@RamyTalal commented on GitHub (May 24, 2014):

Same problem here.
I tried /feed_ajax?action_load_system_feed=1&feed_name=subscriptions&paging=0 and /feed_ajax?action_load_system_feed=1&feed_name=subscriptions, same problem.

/feed_ajax?action_load_system_feed=1&feed_name=subscriptions&paging=1 works, but without the first video.

@RamyTalal commented on GitHub (May 24, 2014): Same problem here. I tried `/feed_ajax?action_load_system_feed=1&feed_name=subscriptions&paging=0` and `/feed_ajax?action_load_system_feed=1&feed_name=subscriptions`, same problem. `/feed_ajax?action_load_system_feed=1&feed_name=subscriptions&paging=1` works, but without the first video.

deekerman commented

2026-02-21 00:20:12 -05:00

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@tehdeftz commented on GitHub (May 29, 2014):

Same here. Was working perfectly week ago I think. Any workarounds?

My log:

debug] System config: []
[debug] User config: []
[debug] Command-line args: [':ytsubscriptions', '-u', '', '-p', '', '--download-archive', '/home/tehdeftz/youtube/down.list', '-f', 'best', '-o', 'Videos/Youtube/%(uploader)s/%(title)s.%(ext)s', '--playlist-end', '25', '--verbose']
[debug] Encodings: locale UTF-8, fs utf-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2014.05.19
[debug] Python version 3.4.1 - Linux-3.12.14-1-MANJARO-netbook-i686-with-glibc2.3.4
[debug] Proxy map: {}
ERROR: Unable to download JSON metadata: HTTP Error 400: Bad Request; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.
File "/usr/local/bin/youtube-dl/youtube_dl/extractor/common.py", line 196, in _request_webpage
return self._downloader.urlopen(url_or_request)
File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 1214, in urlopen
return self._opener.open(req, timeout=self._socket_timeout)
File "/usr/lib/python3.4/urllib/request.py", line 461, in open
response = meth(req, response)
File "/usr/lib/python3.4/urllib/request.py", line 571, in http_response
'http', request, response, code, msg, hdrs)
File "/usr/lib/python3.4/urllib/request.py", line 499, in error
return self._call_chain(_args)
File "/usr/lib/python3.4/urllib/request.py", line 433, in _call_chain
result = func(_args)
File "/usr/lib/python3.4/urllib/request.py", line 579, in http_error_default
raise HTTPError(req.full_url, code, msg, hdrs, fp)

@tehdeftz commented on GitHub (May 29, 2014): Same here. Was working perfectly week ago I think. Any workarounds? My log: debug] System config: [] [debug] User config: [] [debug] Command-line args: [':ytsubscriptions', '-u', '<PRIVATE>', '-p', '<PRIVATE>', '--download-archive', '/home/tehdeftz/youtube/down.list', '-f', 'best', '-o', 'Videos/Youtube/%(uploader)s/%(title)s.%(ext)s', '--playlist-end', '25', '--verbose'] [debug] Encodings: locale UTF-8, fs utf-8, out UTF-8, pref UTF-8 [debug] youtube-dl version 2014.05.19 [debug] Python version 3.4.1 - Linux-3.12.14-1-MANJARO-netbook-i686-with-glibc2.3.4 [debug] Proxy map: {} ERROR: Unable to download JSON metadata: HTTP Error 400: Bad Request; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. File "/usr/local/bin/youtube-dl/youtube_dl/extractor/common.py", line 196, in _request_webpage return self._downloader.urlopen(url_or_request) File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 1214, in urlopen return self._opener.open(req, timeout=self._socket_timeout) File "/usr/lib/python3.4/urllib/request.py", line 461, in open response = meth(req, response) File "/usr/lib/python3.4/urllib/request.py", line 571, in http_response 'http', request, response, code, msg, hdrs) File "/usr/lib/python3.4/urllib/request.py", line 499, in error return self._call_chain(_args) File "/usr/lib/python3.4/urllib/request.py", line 433, in _call_chain result = func(_args) File "/usr/lib/python3.4/urllib/request.py", line 579, in http_error_default raise HTTPError(req.full_url, code, msg, hdrs, fp)

deekerman commented

2026-02-21 00:20:12 -05:00

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@sndtnd commented on GitHub (Jun 1, 2014):

Problem persists:
[debug] System config: []
[debug] User config: []
[debug] Command-line args: ['--get-id', '-t', '-i', '-c', '-u', '', '-p', '', 'http://www.youtube.com/feed/subscriptions', '--verbose']
[debug] Encodings: locale UTF-8, fs UTF-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2014.05.31.4
[debug] Python version 2.7.6 - Linux-3.13.0-24-generic-x86_64-with-Ubuntu-14.04-trusty
[debug] Proxy map: {}
ERROR: Unable to download JSON metadata: HTTP Error 400: Bad Request; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.
File "/usr/local/lib/python2.7/dist-packages/youtube_dl/extractor/common.py", line 196, in _request_webpage
return self._downloader.urlopen(url_or_request)
File "/usr/local/lib/python2.7/dist-packages/youtube_dl/YoutubeDL.py", line 1214, in urlopen
return self._opener.open(req, timeout=self._socket_timeout)
File "/usr/lib/python2.7/urllib2.py", line 410, in open
response = meth(req, response)
File "/usr/lib/python2.7/urllib2.py", line 523, in http_response
'http', request, response, code, msg, hdrs)
File "/usr/lib/python2.7/urllib2.py", line 448, in error
return self._call_chain(_args)
File "/usr/lib/python2.7/urllib2.py", line 382, in _call_chain
result = func(_args)
File "/usr/lib/python2.7/urllib2.py", line 531, in http_error_default
raise HTTPError(req.get_full_url(), code, msg, hdrs, fp)

@sndtnd commented on GitHub (Jun 1, 2014): Problem persists: [debug] System config: [] [debug] User config: [] [debug] Command-line args: ['--get-id', '-t', '-i', '-c', '-u', '<PRIVATE>', '-p', '<PRIVATE>', 'http://www.youtube.com/feed/subscriptions', '--verbose'] [debug] Encodings: locale UTF-8, fs UTF-8, out UTF-8, pref UTF-8 [debug] youtube-dl version 2014.05.31.4 [debug] Python version 2.7.6 - Linux-3.13.0-24-generic-x86_64-with-Ubuntu-14.04-trusty [debug] Proxy map: {} ERROR: Unable to download JSON metadata: HTTP Error 400: Bad Request; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. File "/usr/local/lib/python2.7/dist-packages/youtube_dl/extractor/common.py", line 196, in _request_webpage return self._downloader.urlopen(url_or_request) File "/usr/local/lib/python2.7/dist-packages/youtube_dl/YoutubeDL.py", line 1214, in urlopen return self._opener.open(req, timeout=self._socket_timeout) File "/usr/lib/python2.7/urllib2.py", line 410, in open response = meth(req, response) File "/usr/lib/python2.7/urllib2.py", line 523, in http_response 'http', request, response, code, msg, hdrs) File "/usr/lib/python2.7/urllib2.py", line 448, in error return self._call_chain(_args) File "/usr/lib/python2.7/urllib2.py", line 382, in _call_chain result = func(_args) File "/usr/lib/python2.7/urllib2.py", line 531, in http_error_default raise HTTPError(req.get_full_url(), code, msg, hdrs, fp)

deekerman commented

2026-02-21 00:20:12 -05:00

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@MalakymR commented on GitHub (Jun 4, 2014):

I got the same on the last few versions up to youtube-dl --version 2014.06.04

debug] System config: ['--ignore-errors', '--output', '/yt/yt/%(uploader)s--%(upload_date)s--%(title)s--%(id)s.%(ext)s', '--download-archive=/yt/yt.db', '--continue', '--max-quality', '22']
[debug] User config: []
[debug] Command-line args: ['--verbose', '-u', '', '-p', '', ':ytsubs', '--dateafter', 'now-1week']
[debug] Encodings: locale ANSI_X3.4-1968, fs ANSI_X3.4-1968, out ANSI_X3.4-1968, pref ANSI_X3.4-1968
[debug] youtube-dl version 2014.06.04
[debug] Python version 2.7.5 - Linux-3.2.12-gentoo-i686-Pentium_III_-Coppermine-with-gentoo-2.2
[debug] Proxy map: {}
[youtube:subscriptions] Downloading login page
[youtube:subscriptions] Logging in
[youtube:subscriptions] subscriptions feed: Downloading page 1
ERROR: Unable to download JSON metadata: HTTP Error 400: Bad Request; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.
File "/usr/bin/youtube-dl/youtube_dl/extractor/common.py", line 196, in _request_webpage
return self._downloader.urlopen(url_or_request)
File "/usr/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 1214, in urlopen
return self._opener.open(req, timeout=self._socket_timeout)
File "/usr/lib/python2.7/urllib2.py", line 410, in open
response = meth(req, response)
File "/usr/lib/python2.7/urllib2.py", line 523, in http_response
'http', request, response, code, msg, hdrs)
File "/usr/lib/python2.7/urllib2.py", line 448, in error
return self._call_chain(_args)
File "/usr/lib/python2.7/urllib2.py", line 382, in _call_chain
result = func(_args)
File "/usr/lib/python2.7/urllib2.py", line 531, in http_error_default
raise HTTPError(req.get_full_url(), code, msg, hdrs, fp)

@MalakymR commented on GitHub (Jun 4, 2014): I got the same on the last few versions up to youtube-dl --version 2014.06.04 debug] System config: ['--ignore-errors', '--output', '/yt/yt/%(uploader)s--%(upload_date)s--%(title)s--%(id)s.%(ext)s', '--download-archive=/yt/yt.db', '--continue', '--max-quality', '22'] [debug] User config: [] [debug] Command-line args: ['--verbose', '-u', '<PRIVATE>', '-p', '<PRIVATE>', ':ytsubs', '--dateafter', 'now-1week'] [debug] Encodings: locale ANSI_X3.4-1968, fs ANSI_X3.4-1968, out ANSI_X3.4-1968, pref ANSI_X3.4-1968 [debug] youtube-dl version 2014.06.04 [debug] Python version 2.7.5 - Linux-3.2.12-gentoo-i686-Pentium_III_-Coppermine-with-gentoo-2.2 [debug] Proxy map: {} [youtube:subscriptions] Downloading login page [youtube:subscriptions] Logging in [youtube:subscriptions] subscriptions feed: Downloading page 1 ERROR: Unable to download JSON metadata: HTTP Error 400: Bad Request; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. File "/usr/bin/youtube-dl/youtube_dl/extractor/common.py", line 196, in _request_webpage return self._downloader.urlopen(url_or_request) File "/usr/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 1214, in urlopen return self._opener.open(req, timeout=self._socket_timeout) File "/usr/lib/python2.7/urllib2.py", line 410, in open response = meth(req, response) File "/usr/lib/python2.7/urllib2.py", line 523, in http_response 'http', request, response, code, msg, hdrs) File "/usr/lib/python2.7/urllib2.py", line 448, in error return self._call_chain(_args) File "/usr/lib/python2.7/urllib2.py", line 382, in _call_chain result = func(_args) File "/usr/lib/python2.7/urllib2.py", line 531, in http_error_default raise HTTPError(req.get_full_url(), code, msg, hdrs, fp)

deekerman commented

2026-02-21 00:20:12 -05:00

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@Yavos commented on GitHub (Jun 11, 2014):

As mentioned by RamyTalal the feed for youtube subscriptions doesn't work with paging=0 anymore.
You can easily make a temporary fix by adding the lines

        if self._FEED_NAME == 'subscriptions':
            paging = 1

in youtube_dl/extractor/youtube.py, Class YoutubeFeedsInfoExtractor(YoutubeBaseInfoExtractor), _real_extract(self, url) after line 1766 (paging = 0)

This won't download all the subscriptions but it will at least download most of them which is way better than none.

@Yavos commented on GitHub (Jun 11, 2014): As mentioned by RamyTalal the feed for youtube subscriptions doesn't work with paging=0 anymore. You can easily make a temporary fix by adding the lines ``` if self._FEED_NAME == 'subscriptions': paging = 1 ``` in youtube_dl/extractor/youtube.py, Class YoutubeFeedsInfoExtractor(YoutubeBaseInfoExtractor), _real_extract(self, url) after line 1766 (`paging = 0`) This won't download all the subscriptions but it will at least download most of them which is way better than none.

deekerman commented

2026-02-21 00:20:12 -05:00

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@MalakymR commented on GitHub (Jun 12, 2014):

That "fixed" it for me, I was playing around with the URLs in my command based on what RamyTalal said not the source.

@MalakymR commented on GitHub (Jun 12, 2014): That "fixed" it for me, I was playing around with the URLs in my command based on what RamyTalal said not the source.

deekerman commented

2026-02-21 00:20:12 -05:00

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@sndtnd commented on GitHub (Aug 24, 2014):

This 'fix' no longer works for me.

@sndtnd commented on GitHub (Aug 24, 2014): This 'fix' no longer works for me.

deekerman commented

2026-02-21 00:20:12 -05:00

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@RamyTalal commented on GitHub (Aug 25, 2014):

YouTube now uses a cookie (ACTIVITY) to determine the feed paging. If you request the following URL multiple times the paging increments:
https://www.youtube.com/browse_ajax?action_continuation=1&continuation=ChkSD0ZFc3Vic2NyaXB0aW9ucxoGQ0VBJTNE

@RamyTalal commented on GitHub (Aug 25, 2014): YouTube now uses a cookie (`ACTIVITY`) to determine the feed paging. If you request the following URL multiple times the paging increments: `https://www.youtube.com/browse_ajax?action_continuation=1&continuation=ChkSD0ZFc3Vic2NyaXB0aW9ucxoGQ0VBJTNE`

deekerman commented

2026-02-21 00:20:12 -05:00

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@jaimeMF commented on GitHub (Aug 31, 2014):

Thanks for the report, it should work in the next version.
I would appreciate if you could tested with the next release and report any problem you find. (For example veryfing that all the videos are downloaded)

@jaimeMF commented on GitHub (Aug 31, 2014): Thanks for the report, it should work in the next version. I would appreciate if you could tested with the next release and report any problem you find. (For example veryfing that all the videos are downloaded)

deekerman commented

2026-02-21 00:20:12 -05:00

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@phihag commented on GitHub (Aug 31, 2014):

I believe this bug to be fixed in youtube-dl 2014.09.01. If it still occurs, please open a new issue (or comment in this one if you are absolutely certain it's the same issue) with the output of youtube-dl when called with the -v option.

@phihag commented on GitHub (Aug 31, 2014): I believe this bug to be fixed in youtube-dl 2014.09.01. If it still occurs, please open a new issue (or comment in this one if you are absolutely certain it's the same issue) with the output of youtube-dl when called with the `-v` option.

deekerman commented

2026-02-21 00:20:12 -05:00

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@noureddin commented on GitHub (Nov 29, 2014):

The same problem here. It, firstly, occured about two weeks ago with a specific youtube channel, but upgrading to the latest version and using the url in the first comment (by RamyTalal) solved it for the first time, and since, youtube-dl works perfectly without that url. but today another channel refused to get downloaded, raisng the same error, with that url and without it.

here is the output:
$ youtube-dl 'https://www.youtube.com/channel/UCDHcIkFMCIXKmaD-8LtliSw/feed_ajax?action_load_system_feed=1&feed_name=subscriptions&paging=1' --verbose

[debug] System config: []
[debug] User config: []
[debug] Command-line args: ['https://www.youtube.com/channel/UCDHcIkFMCIXKmaD-8LtliSw/feed_ajax?action_load_system_feed=1&feed_name=subscriptions&paging=1', '--verbose']
[debug] Encodings: locale UTF-8, fs utf-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2014.11.27
[debug] Python version 3.4.1 - Linux-3.14.18-1-MANJARO-x86_64-with-glibc2.3.4
[debug] exe versions: ffmpeg 2.3.3, ffprobe 2.3.3, rtmpdump 2.4
[debug] Proxy map: {}
[youtube:channel] UCDHcIkFMCIXKmaD-8LtliSw: Downloading webpage
[youtube:channel] UCDHcIkFMCIXKmaD-8LtliSw: Downloading page #1
[youtube:channel] UCDHcIkFMCIXKmaD-8LtliSw: Downloading page #2
ERROR: Unable to download JSON metadata: HTTP Error 400: Bad Request (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 273, in _request_webpage
return self._downloader.urlopen(url_or_request)
File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 1321, in urlopen
return self._opener.open(req, timeout=self._socket_timeout)
File "/usr/lib/python3.4/urllib/request.py", line 461, in open
response = meth(req, response)
File "/usr/lib/python3.4/urllib/request.py", line 571, in http_response
'http', request, response, code, msg, hdrs)
File "/usr/lib/python3.4/urllib/request.py", line 499, in error
return self._call_chain(_args)
File "/usr/lib/python3.4/urllib/request.py", line 433, in _call_chain
result = func(_args)
File "/usr/lib/python3.4/urllib/request.py", line 579, in http_error_default
raise HTTPError(req.full_url, code, msg, hdrs, fp)

$ youtube-dl 'https://www.youtube.com/channel/UCDHcIkFMCIXKmaD-8LtliSw' --verbose

[debug] System config: []
[debug] User config: []
[debug] Command-line args: ['https://www.youtube.com/channel/UCDHcIkFMCIXKmaD-8LtliSw', '--verbose']
[debug] Encodings: locale UTF-8, fs utf-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2014.11.27
[debug] Python version 3.4.1 - Linux-3.14.18-1-MANJARO-x86_64-with-glibc2.3.4
[debug] exe versions: ffmpeg 2.3.3, ffprobe 2.3.3, rtmpdump 2.4
[debug] Proxy map: {}
[youtube:channel] UCDHcIkFMCIXKmaD-8LtliSw: Downloading webpage
[youtube:channel] UCDHcIkFMCIXKmaD-8LtliSw: Downloading page #1
[youtube:channel] UCDHcIkFMCIXKmaD-8LtliSw: Downloading page #2
ERROR: Unable to download JSON metadata: HTTP Error 400: Bad Request (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 273, in _request_webpage
return self._downloader.urlopen(url_or_request)
File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 1321, in urlopen
return self._opener.open(req, timeout=self._socket_timeout)
File "/usr/lib/python3.4/urllib/request.py", line 461, in open
response = meth(req, response)
File "/usr/lib/python3.4/urllib/request.py", line 571, in http_response
'http', request, response, code, msg, hdrs)
File "/usr/lib/python3.4/urllib/request.py", line 499, in error
return self._call_chain(_args)
File "/usr/lib/python3.4/urllib/request.py", line 433, in _call_chain
result = func(_args)
File "/usr/lib/python3.4/urllib/request.py", line 579, in http_error_default
raise HTTPError(req.full_url, code, msg, hdrs, fp)

@noureddin commented on GitHub (Nov 29, 2014): The same problem here. It, firstly, occured about two weeks ago with a specific youtube channel, but upgrading to the latest version and using the url in the first comment (by RamyTalal) solved it for the first time, and since, youtube-dl works perfectly without that url. but today another channel refused to get downloaded, raisng the same error, with that url and without it. here is the output: $ youtube-dl 'https://www.youtube.com/channel/UCDHcIkFMCIXKmaD-8LtliSw/feed_ajax?action_load_system_feed=1&feed_name=subscriptions&paging=1' --verbose [debug] System config: [] [debug] User config: [] [debug] Command-line args: ['https://www.youtube.com/channel/UCDHcIkFMCIXKmaD-8LtliSw/feed_ajax?action_load_system_feed=1&feed_name=subscriptions&paging=1', '--verbose'] [debug] Encodings: locale UTF-8, fs utf-8, out UTF-8, pref UTF-8 [debug] youtube-dl version 2014.11.27 [debug] Python version 3.4.1 - Linux-3.14.18-1-MANJARO-x86_64-with-glibc2.3.4 [debug] exe versions: ffmpeg 2.3.3, ffprobe 2.3.3, rtmpdump 2.4 [debug] Proxy map: {} [youtube:channel] UCDHcIkFMCIXKmaD-8LtliSw: Downloading webpage [youtube:channel] UCDHcIkFMCIXKmaD-8LtliSw: Downloading page #1 [youtube:channel] UCDHcIkFMCIXKmaD-8LtliSw: Downloading page #2 ERROR: Unable to download JSON metadata: HTTP Error 400: Bad Request (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 273, in _request_webpage return self._downloader.urlopen(url_or_request) File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 1321, in urlopen return self._opener.open(req, timeout=self._socket_timeout) File "/usr/lib/python3.4/urllib/request.py", line 461, in open response = meth(req, response) File "/usr/lib/python3.4/urllib/request.py", line 571, in http_response 'http', request, response, code, msg, hdrs) File "/usr/lib/python3.4/urllib/request.py", line 499, in error return self._call_chain(_args) File "/usr/lib/python3.4/urllib/request.py", line 433, in _call_chain result = func(_args) File "/usr/lib/python3.4/urllib/request.py", line 579, in http_error_default raise HTTPError(req.full_url, code, msg, hdrs, fp) $ youtube-dl 'https://www.youtube.com/channel/UCDHcIkFMCIXKmaD-8LtliSw' --verbose [debug] System config: [] [debug] User config: [] [debug] Command-line args: ['https://www.youtube.com/channel/UCDHcIkFMCIXKmaD-8LtliSw', '--verbose'] [debug] Encodings: locale UTF-8, fs utf-8, out UTF-8, pref UTF-8 [debug] youtube-dl version 2014.11.27 [debug] Python version 3.4.1 - Linux-3.14.18-1-MANJARO-x86_64-with-glibc2.3.4 [debug] exe versions: ffmpeg 2.3.3, ffprobe 2.3.3, rtmpdump 2.4 [debug] Proxy map: {} [youtube:channel] UCDHcIkFMCIXKmaD-8LtliSw: Downloading webpage [youtube:channel] UCDHcIkFMCIXKmaD-8LtliSw: Downloading page #1 [youtube:channel] UCDHcIkFMCIXKmaD-8LtliSw: Downloading page #2 ERROR: Unable to download JSON metadata: HTTP Error 400: Bad Request (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 273, in _request_webpage return self._downloader.urlopen(url_or_request) File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 1321, in urlopen return self._opener.open(req, timeout=self._socket_timeout) File "/usr/lib/python3.4/urllib/request.py", line 461, in open response = meth(req, response) File "/usr/lib/python3.4/urllib/request.py", line 571, in http_response 'http', request, response, code, msg, hdrs) File "/usr/lib/python3.4/urllib/request.py", line 499, in error return self._call_chain(_args) File "/usr/lib/python3.4/urllib/request.py", line 433, in _call_chain result = func(_args) File "/usr/lib/python3.4/urllib/request.py", line 579, in http_error_default raise HTTPError(req.full_url, code, msg, hdrs, fp)

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[youtube:subscriptions] HTTP Error 400: Bad Request #2355