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  1. youtube-dl - download videos from youtube.com or other video platforms
  2. # SYNOPSIS
  3. **youtube-dl** [OPTIONS] URL [URL...]
  4. # INSTALLATION
  5. To install it right away for all UNIX users (Linux, OS X, etc.), type:
  6. sudo curl https://yt-dl.org/latest/youtube-dl -o /usr/local/bin/youtube-dl
  7. sudo chmod a+x /usr/local/bin/youtube-dl
  8. If you do not have curl, you can alternatively use a recent wget:
  9. sudo wget https://yt-dl.org/downloads/latest/youtube-dl -O /usr/local/bin/youtube-dl
  10. sudo chmod a+x /usr/local/bin/youtube-dl
  11. Windows users can [download a .exe file](https://yt-dl.org/latest/youtube-dl.exe) and place it in their home directory or any other location on their [PATH](http://en.wikipedia.org/wiki/PATH_%28variable%29).
  12. Alternatively, refer to the developer instructions below for how to check out and work with the git repository. For further options, including PGP signatures, see https://rg3.github.io/youtube-dl/download.html .
  13. # DESCRIPTION
  14. **youtube-dl** is a small command-line program to download videos from
  15. YouTube.com and a few more sites. It requires the Python interpreter, version
  16. 2.6, 2.7, or 3.3+, and it is not platform specific. It should work on
  17. your Unix box, on Windows or on Mac OS X. It is released to the public domain,
  18. which means you can modify it, redistribute it or use it however you like.
  19. # OPTIONS
  20. -h, --help print this help text and exit
  21. --version print program version and exit
  22. -U, --update update this program to latest version. Make
  23. sure that you have sufficient permissions
  24. (run with sudo if needed)
  25. -i, --ignore-errors continue on download errors, for example to
  26. skip unavailable videos in a playlist
  27. --abort-on-error Abort downloading of further videos (in the
  28. playlist or the command line) if an error
  29. occurs
  30. --dump-user-agent display the current browser identification
  31. --list-extractors List all supported extractors and the URLs
  32. they would handle
  33. --extractor-descriptions Output descriptions of all supported
  34. extractors
  35. --proxy URL Use the specified HTTP/HTTPS proxy. Pass in
  36. an empty string (--proxy "") for direct
  37. connection
  38. --socket-timeout None Time to wait before giving up, in seconds
  39. --bidi-workaround Work around terminals that lack
  40. bidirectional text support. Requires bidiv
  41. or fribidi executable in PATH
  42. --default-search PREFIX Use this prefix for unqualified URLs. For
  43. example "gvsearch2:" downloads two videos
  44. from google videos for youtube-dl "large
  45. apple". Use the value "auto" to let
  46. youtube-dl guess. The default value "error"
  47. just throws an error.
  48. --ignore-config Do not read configuration files. When given
  49. in the global configuration file /etc
  50. /youtube-dl.conf: do not read the user
  51. configuration in ~/.config/youtube-dl.conf
  52. (%APPDATA%/youtube-dl/config.txt on
  53. Windows)
  54. ## Video Selection:
  55. --playlist-start NUMBER playlist video to start at (default is 1)
  56. --playlist-end NUMBER playlist video to end at (default is last)
  57. --match-title REGEX download only matching titles (regex or
  58. caseless sub-string)
  59. --reject-title REGEX skip download for matching titles (regex or
  60. caseless sub-string)
  61. --max-downloads NUMBER Abort after downloading NUMBER files
  62. --min-filesize SIZE Do not download any videos smaller than
  63. SIZE (e.g. 50k or 44.6m)
  64. --max-filesize SIZE Do not download any videos larger than SIZE
  65. (e.g. 50k or 44.6m)
  66. --date DATE download only videos uploaded in this date
  67. --datebefore DATE download only videos uploaded on or before
  68. this date (i.e. inclusive)
  69. --dateafter DATE download only videos uploaded on or after
  70. this date (i.e. inclusive)
  71. --min-views COUNT Do not download any videos with less than
  72. COUNT views
  73. --max-views COUNT Do not download any videos with more than
  74. COUNT views
  75. --no-playlist download only the currently playing video
  76. --age-limit YEARS download only videos suitable for the given
  77. age
  78. --download-archive FILE Download only videos not listed in the
  79. archive file. Record the IDs of all
  80. downloaded videos in it.
  81. --include-ads Download advertisements as well
  82. (experimental)
  83. --youtube-include-dash-manifest Try to download the DASH manifest on
  84. YouTube videos (experimental)
  85. ## Download Options:
  86. -r, --rate-limit LIMIT maximum download rate in bytes per second
  87. (e.g. 50K or 4.2M)
  88. -R, --retries RETRIES number of retries (default is 10)
  89. --buffer-size SIZE size of download buffer (e.g. 1024 or 16K)
  90. (default is 1024)
  91. --no-resize-buffer do not automatically adjust the buffer
  92. size. By default, the buffer size is
  93. automatically resized from an initial value
  94. of SIZE.
  95. ## Filesystem Options:
  96. -a, --batch-file FILE file containing URLs to download ('-' for
  97. stdin)
  98. --id use only video ID in file name
  99. -A, --auto-number number downloaded files starting from 00000
  100. -o, --output TEMPLATE output filename template. Use %(title)s to
  101. get the title, %(uploader)s for the
  102. uploader name, %(uploader_id)s for the
  103. uploader nickname if different,
  104. %(autonumber)s to get an automatically
  105. incremented number, %(ext)s for the
  106. filename extension, %(format)s for the
  107. format description (like "22 - 1280x720" or
  108. "HD"), %(format_id)s for the unique id of
  109. the format (like Youtube's itags: "137"),
  110. %(upload_date)s for the upload date
  111. (YYYYMMDD), %(extractor)s for the provider
  112. (youtube, metacafe, etc), %(id)s for the
  113. video id, %(playlist)s for the playlist the
  114. video is in, %(playlist_index)s for the
  115. position in the playlist and %% for a
  116. literal percent. %(height)s and %(width)s
  117. for the width and height of the video
  118. format. %(resolution)s for a textual
  119. description of the resolution of the video
  120. format. Use - to output to stdout. Can also
  121. be used to download to a different
  122. directory, for example with -o '/my/downloa
  123. ds/%(uploader)s/%(title)s-%(id)s.%(ext)s' .
  124. --autonumber-size NUMBER Specifies the number of digits in
  125. %(autonumber)s when it is present in output
  126. filename template or --auto-number option
  127. is given
  128. --restrict-filenames Restrict filenames to only ASCII
  129. characters, and avoid "&" and spaces in
  130. filenames
  131. -t, --title [deprecated] use title in file name
  132. (default)
  133. -l, --literal [deprecated] alias of --title
  134. -w, --no-overwrites do not overwrite files
  135. -c, --continue force resume of partially downloaded files.
  136. By default, youtube-dl will resume
  137. downloads if possible.
  138. --no-continue do not resume partially downloaded files
  139. (restart from beginning)
  140. --no-part do not use .part files
  141. --no-mtime do not use the Last-modified header to set
  142. the file modification time
  143. --write-description write video description to a .description
  144. file
  145. --write-info-json write video metadata to a .info.json file
  146. --write-annotations write video annotations to a .annotation
  147. file
  148. --write-thumbnail write thumbnail image to disk
  149. --load-info FILE json file containing the video information
  150. (created with the "--write-json" option)
  151. --cookies FILE file to read cookies from and dump cookie
  152. jar in
  153. --cache-dir DIR Location in the filesystem where youtube-dl
  154. can store some downloaded information
  155. permanently. By default $XDG_CACHE_HOME
  156. /youtube-dl or ~/.cache/youtube-dl . At the
  157. moment, only YouTube player files (for
  158. videos with obfuscated signatures) are
  159. cached, but that may change.
  160. --no-cache-dir Disable filesystem caching
  161. --rm-cache-dir Delete all filesystem cache files
  162. ## Verbosity / Simulation Options:
  163. -q, --quiet activates quiet mode
  164. --no-warnings Ignore warnings
  165. -s, --simulate do not download the video and do not write
  166. anything to disk
  167. --skip-download do not download the video
  168. -g, --get-url simulate, quiet but print URL
  169. -e, --get-title simulate, quiet but print title
  170. --get-id simulate, quiet but print id
  171. --get-thumbnail simulate, quiet but print thumbnail URL
  172. --get-description simulate, quiet but print video description
  173. --get-duration simulate, quiet but print video length
  174. --get-filename simulate, quiet but print output filename
  175. --get-format simulate, quiet but print output format
  176. -j, --dump-json simulate, quiet but print JSON information.
  177. See --output for a description of available
  178. keys.
  179. --newline output progress bar as new lines
  180. --no-progress do not print progress bar
  181. --console-title display progress in console titlebar
  182. -v, --verbose print various debugging information
  183. --dump-intermediate-pages print downloaded pages to debug problems
  184. (very verbose)
  185. --write-pages Write downloaded intermediary pages to
  186. files in the current directory to debug
  187. problems
  188. --print-traffic Display sent and read HTTP traffic
  189. ## Workarounds:
  190. --encoding ENCODING Force the specified encoding (experimental)
  191. --no-check-certificate Suppress HTTPS certificate validation.
  192. --prefer-insecure Use an unencrypted connection to retrieve
  193. information about the video. (Currently
  194. supported only for YouTube)
  195. --user-agent UA specify a custom user agent
  196. --referer REF specify a custom referer, use if the video
  197. access is restricted to one domain
  198. --add-header FIELD:VALUE specify a custom HTTP header and its value,
  199. separated by a colon ':'. You can use this
  200. option multiple times
  201. ## Video Format Options:
  202. -f, --format FORMAT video format code, specify the order of
  203. preference using slashes: "-f 22/17/18".
  204. "-f mp4" and "-f flv" are also supported.
  205. You can also use the special names "best",
  206. "bestvideo", "bestaudio", "worst",
  207. "worstvideo" and "worstaudio". By default,
  208. youtube-dl will pick the best quality.
  209. --all-formats download all available video formats
  210. --prefer-free-formats prefer free video formats unless a specific
  211. one is requested
  212. --max-quality FORMAT highest quality format to download
  213. -F, --list-formats list all available formats
  214. ## Subtitle Options:
  215. --write-sub write subtitle file
  216. --write-auto-sub write automatic subtitle file (youtube
  217. only)
  218. --all-subs downloads all the available subtitles of
  219. the video
  220. --list-subs lists all available subtitles for the video
  221. --sub-format FORMAT subtitle format (default=srt) ([sbv/vtt]
  222. youtube only)
  223. --sub-lang LANGS languages of the subtitles to download
  224. (optional) separated by commas, use IETF
  225. language tags like 'en,pt'
  226. ## Authentication Options:
  227. -u, --username USERNAME account username
  228. -p, --password PASSWORD account password
  229. -n, --netrc use .netrc authentication data
  230. --video-password PASSWORD video password (vimeo, smotri)
  231. ## Post-processing Options:
  232. -x, --extract-audio convert video files to audio-only files
  233. (requires ffmpeg or avconv and ffprobe or
  234. avprobe)
  235. --audio-format FORMAT "best", "aac", "vorbis", "mp3", "m4a",
  236. "opus", or "wav"; best by default
  237. --audio-quality QUALITY ffmpeg/avconv audio quality specification,
  238. insert a value between 0 (better) and 9
  239. (worse) for VBR or a specific bitrate like
  240. 128K (default 5)
  241. --recode-video FORMAT Encode the video to another format if
  242. necessary (currently supported:
  243. mp4|flv|ogg|webm|mkv)
  244. -k, --keep-video keeps the video file on disk after the
  245. post-processing; the video is erased by
  246. default
  247. --no-post-overwrites do not overwrite post-processed files; the
  248. post-processed files are overwritten by
  249. default
  250. --embed-subs embed subtitles in the video (only for mp4
  251. videos)
  252. --embed-thumbnail embed thumbnail in the audio as cover art
  253. --add-metadata write metadata to the video file
  254. --xattrs write metadata to the video file's xattrs
  255. (using dublin core and xdg standards)
  256. --prefer-avconv Prefer avconv over ffmpeg for running the
  257. postprocessors (default)
  258. --prefer-ffmpeg Prefer ffmpeg over avconv for running the
  259. postprocessors
  260. # CONFIGURATION
  261. You can configure youtube-dl by placing default arguments (such as `--extract-audio --no-mtime` to always extract the audio and not copy the mtime) into `/etc/youtube-dl.conf` and/or `~/.config/youtube-dl/config`. On Windows, the configuration file locations are `%APPDATA%\youtube-dl\config.txt` and `C:\Users\<Yourname>\youtube-dl.conf`.
  262. # OUTPUT TEMPLATE
  263. The `-o` option allows users to indicate a template for the output file names. The basic usage is not to set any template arguments when downloading a single file, like in `youtube-dl -o funny_video.flv "http://some/video"`. However, it may contain special sequences that will be replaced when downloading each video. The special sequences have the format `%(NAME)s`. To clarify, that is a percent symbol followed by a name in parenthesis, followed by a lowercase S. Allowed names are:
  264. - `id`: The sequence will be replaced by the video identifier.
  265. - `url`: The sequence will be replaced by the video URL.
  266. - `uploader`: The sequence will be replaced by the nickname of the person who uploaded the video.
  267. - `upload_date`: The sequence will be replaced by the upload date in YYYYMMDD format.
  268. - `title`: The sequence will be replaced by the video title.
  269. - `ext`: The sequence will be replaced by the appropriate extension (like flv or mp4).
  270. - `epoch`: The sequence will be replaced by the Unix epoch when creating the file.
  271. - `autonumber`: The sequence will be replaced by a five-digit number that will be increased with each download, starting at zero.
  272. - `playlist`: The name or the id of the playlist that contains the video.
  273. - `playlist_index`: The index of the video in the playlist, a five-digit number.
  274. The current default template is `%(title)s-%(id)s.%(ext)s`.
  275. In some cases, you don't want special characters such as 中, spaces, or &, such as when transferring the downloaded filename to a Windows system or the filename through an 8bit-unsafe channel. In these cases, add the `--restrict-filenames` flag to get a shorter title:
  276. $ youtube-dl --get-filename -o "%(title)s.%(ext)s" BaW_jenozKc
  277. youtube-dl test video ''_ä↭𝕐.mp4 # All kinds of weird characters
  278. $ youtube-dl --get-filename -o "%(title)s.%(ext)s" BaW_jenozKc --restrict-filenames
  279. youtube-dl_test_video_.mp4 # A simple file name
  280. # VIDEO SELECTION
  281. Videos can be filtered by their upload date using the options `--date`, `--datebefore` or `--dateafter`, they accept dates in two formats:
  282. - Absolute dates: Dates in the format `YYYYMMDD`.
  283. - Relative dates: Dates in the format `(now|today)[+-][0-9](day|week|month|year)(s)?`
  284. Examples:
  285. # Download only the videos uploaded in the last 6 months
  286. $ youtube-dl --dateafter now-6months
  287. # Download only the videos uploaded on January 1, 1970
  288. $ youtube-dl --date 19700101
  289. $ # will only download the videos uploaded in the 200x decade
  290. $ youtube-dl --dateafter 20000101 --datebefore 20091231
  291. # FAQ
  292. ### Can you please put the -b option back?
  293. Most people asking this question are not aware that youtube-dl now defaults to downloading the highest available quality as reported by YouTube, which will be 1080p or 720p in some cases, so you no longer need the `-b` option. For some specific videos, maybe YouTube does not report them to be available in a specific high quality format you're interested in. In that case, simply request it with the `-f` option and youtube-dl will try to download it.
  294. ### I get HTTP error 402 when trying to download a video. What's this?
  295. Apparently YouTube requires you to pass a CAPTCHA test if you download too much. We're [considering to provide a way to let you solve the CAPTCHA](https://github.com/rg3/youtube-dl/issues/154), but at the moment, your best course of action is pointing a webbrowser to the youtube URL, solving the CAPTCHA, and restart youtube-dl.
  296. ### I have downloaded a video but how can I play it?
  297. Once the video is fully downloaded, use any video player, such as [vlc](http://www.videolan.org) or [mplayer](http://www.mplayerhq.hu/).
  298. ### The links provided by youtube-dl -g are not working anymore
  299. The URLs youtube-dl outputs require the downloader to have the correct cookies. Use the `--cookies` option to write the required cookies into a file, and advise your downloader to read cookies from that file. Some sites also require a common user agent to be used, use `--dump-user-agent` to see the one in use by youtube-dl.
  300. ### ERROR: no fmt_url_map or conn information found in video info
  301. youtube has switched to a new video info format in July 2011 which is not supported by old versions of youtube-dl. You can update youtube-dl with `sudo youtube-dl --update`.
  302. ### ERROR: unable to download video ###
  303. youtube requires an additional signature since September 2012 which is not supported by old versions of youtube-dl. You can update youtube-dl with `sudo youtube-dl --update`.
  304. ### SyntaxError: Non-ASCII character ###
  305. The error
  306. File "youtube-dl", line 2
  307. SyntaxError: Non-ASCII character '\x93' ...
  308. means you're using an outdated version of Python. Please update to Python 2.6 or 2.7.
  309. ### What is this binary file? Where has the code gone?
  310. Since June 2012 (#342) youtube-dl is packed as an executable zipfile, simply unzip it (might need renaming to `youtube-dl.zip` first on some systems) or clone the git repository, as laid out above. If you modify the code, you can run it by executing the `__main__.py` file. To recompile the executable, run `make youtube-dl`.
  311. ### The exe throws a *Runtime error from Visual C++*
  312. To run the exe you need to install first the [Microsoft Visual C++ 2008 Redistributable Package](http://www.microsoft.com/en-us/download/details.aspx?id=29).
  313. # DEVELOPER INSTRUCTIONS
  314. Most users do not need to build youtube-dl and can [download the builds](http://rg3.github.io/youtube-dl/download.html) or get them from their distribution.
  315. To run youtube-dl as a developer, you don't need to build anything either. Simply execute
  316. python -m youtube_dl
  317. To run the test, simply invoke your favorite test runner, or execute a test file directly; any of the following work:
  318. python -m unittest discover
  319. python test/test_download.py
  320. nosetests
  321. If you want to create a build of youtube-dl yourself, you'll need
  322. * python
  323. * make
  324. * pandoc
  325. * zip
  326. * nosetests
  327. ### Adding support for a new site
  328. If you want to add support for a new site, you can follow this quick list (assuming your service is called `yourextractor`):
  329. 1. [Fork this repository](https://github.com/rg3/youtube-dl/fork)
  330. 2. Check out the source code with `git clone git@github.com:YOUR_GITHUB_USERNAME/youtube-dl.git`
  331. 3. Start a new git branch with `cd youtube-dl; git checkout -b yourextractor`
  332. 4. Start with this simple template and save it to `youtube_dl/extractor/yourextractor.py`:
  333. # coding: utf-8
  334. from __future__ import unicode_literals
  335. import re
  336. from .common import InfoExtractor
  337. class YourExtractorIE(InfoExtractor):
  338. _VALID_URL = r'https?://(?:www\.)?yourextractor\.com/watch/(?P<id>[0-9]+)'
  339. _TEST = {
  340. 'url': 'http://yourextractor.com/watch/42',
  341. 'md5': 'TODO: md5 sum of the first 10KiB of the video file',
  342. 'info_dict': {
  343. 'id': '42',
  344. 'ext': 'mp4',
  345. 'title': 'Video title goes here',
  346. # TODO more properties, either as:
  347. # * A value
  348. # * MD5 checksum; start the string with md5:
  349. # * A regular expression; start the string with re:
  350. # * Any Python type (for example int or float)
  351. }
  352. }
  353. def _real_extract(self, url):
  354. mobj = re.match(self._VALID_URL, url)
  355. video_id = mobj.group('id')
  356. # TODO more code goes here, for example ...
  357. webpage = self._download_webpage(url, video_id)
  358. title = self._html_search_regex(r'<h1>(.*?)</h1>', webpage, 'title')
  359. return {
  360. 'id': video_id,
  361. 'title': title,
  362. # TODO more properties (see youtube_dl/extractor/common.py)
  363. }
  364. 5. Add an import in [`youtube_dl/extractor/__init__.py`](https://github.com/rg3/youtube-dl/blob/master/youtube_dl/extractor/__init__.py).
  365. 6. Run `python test/test_download.py TestDownload.test_YourExtractor`. This *should fail* at first, but you can continually re-run it until you're done.
  366. 7. Have a look at [`youtube_dl/common/extractor/common.py`](https://github.com/rg3/youtube-dl/blob/master/youtube_dl/extractor/common.py) for possible helper methods and a [detailed description of what your extractor should return](https://github.com/rg3/youtube-dl/blob/master/youtube_dl/extractor/common.py#L38). Add tests and code for as many as you want.
  367. 8. If you can, check the code with [pyflakes](https://pypi.python.org/pypi/pyflakes) (a good idea) and [pep8](https://pypi.python.org/pypi/pep8) (optional, ignore E501).
  368. 9. When the tests pass, [add](https://www.kernel.org/pub/software/scm/git/docs/git-add.html) the new files and [commit](https://www.kernel.org/pub/software/scm/git/docs/git-commit.html) them and [push](https://www.kernel.org/pub/software/scm/git/docs/git-push.html) the result, like this:
  369. $ git add youtube_dl/extractor/__init__.py
  370. $ git add youtube_dl/extractor/yourextractor.py
  371. $ git commit -m '[yourextractor] Add new extractor'
  372. $ git push origin yourextractor
  373. 10. Finally, [create a pull request](https://help.github.com/articles/creating-a-pull-request). We'll then review and merge it.
  374. In any case, thank you very much for your contributions!
  375. # BUGS
  376. Bugs and suggestions should be reported at: <https://github.com/rg3/youtube-dl/issues> . Unless you were prompted so or there is another pertinent reason (e.g. GitHub fails to accept the bug report), please do not send bug reports via personal email.
  377. Please include the full output of the command when run with `--verbose`. The output (including the first lines) contain important debugging information. Issues without the full output are often not reproducible and therefore do not get solved in short order, if ever.
  378. For discussions, join us in the irc channel #youtube-dl on freenode.
  379. When you submit a request, please re-read it once to avoid a couple of mistakes (you can and should use this as a checklist):
  380. ### Is the description of the issue itself sufficient?
  381. We often get issue reports that we cannot really decipher. While in most cases we eventually get the required information after asking back multiple times, this poses an unnecessary drain on our resources. Many contributors, including myself, are also not native speakers, so we may misread some parts.
  382. So please elaborate on what feature you are requesting, or what bug you want to be fixed. Make sure that it's obvious
  383. - What the problem is
  384. - How it could be fixed
  385. - How your proposed solution would look like
  386. If your report is shorter than two lines, it is almost certainly missing some of these, which makes it hard for us to respond to it. We're often too polite to close the issue outright, but the missing info makes misinterpretation likely. As a commiter myself, I often get frustrated by these issues, since the only possible way for me to move forward on them is to ask for clarification over and over.
  387. For bug reports, this means that your report should contain the *complete* output of youtube-dl when called with the -v flag. The error message you get for (most) bugs even says so, but you would not believe how many of our bug reports do not contain this information.
  388. Site support requests **must contain an example URL**. An example URL is a URL you might want to download, like http://www.youtube.com/watch?v=BaW_jenozKc . There should be an obvious video present. Except under very special circumstances, the main page of a video service (e.g. http://www.youtube.com/ ) is *not* an example URL.
  389. ### Are you using the latest version?
  390. Before reporting any issue, type youtube-dl -U. This should report that you're up-to-date. About 20% of the reports we receive are already fixed, but people are using outdated versions. This goes for feature requests as well.
  391. ### Is the issue already documented?
  392. Make sure that someone has not already opened the issue you're trying to open. Search at the top of the window or at https://github.com/rg3/youtube-dl/search?type=Issues . If there is an issue, feel free to write something along the lines of "This affects me as well, with version 2015.01.01. Here is some more information on the issue: ...". While some issues may be old, a new post into them often spurs rapid activity.
  393. ### Why are existing options not enough?
  394. Before requesting a new feature, please have a quick peek at [the list of supported options](https://github.com/rg3/youtube-dl/blob/master/README.md#synopsis). Many feature requests are for features that actually exist already! Please, absolutely do show off your work in the issue report and detail how the existing similar options do *not* solve your problem.
  395. ### Is there enough context in your bug report?
  396. People want to solve problems, and often think they do us a favor by breaking down their larger problems (e.g. wanting to skip already downloaded files) to a specific request (e.g. requesting us to look whether the file exists before downloading the info page). However, what often happens is that they break down the problem into two steps: One simple, and one impossible (or extremely complicated one).
  397. We are then presented with a very complicated request when the original problem could be solved far easier, e.g. by recording the downloaded video IDs in a separate file. To avoid this, you must include the greater context where it is non-obvious. In particular, every feature request that does not consist of adding support for a new site should contain a use case scenario that explains in what situation the missing feature would be useful.
  398. ### Does the issue involve one problem, and one problem only?
  399. Some of our users seem to think there is a limit of issues they can or should open. There is no limit of issues they can or should open. While it may seem appealing to be able to dump all your issues into one ticket, that means that someone who solves one of your issues cannot mark the issue as closed. Typically, reporting a bunch of issues leads to the ticket lingering since nobody wants to attack that behemoth, until someone mercifully splits the issue into multiple ones.
  400. In particular, every site support request issue should only pertain to services at one site (generally under a common domain, but always using the same backend technology). Do not request support for vimeo user videos, Whitehouse podcasts, and Google Plus pages in the same issue. Also, make sure that you don't post bug reports alongside feature requests. As a rule of thumb, a feature request does not include outputs of youtube-dl that are not immediately related to the feature at hand. Do not post reports of a network error alongside the request for a new video service.
  401. ### Is anyone going to need the feature?
  402. Only post features that you (or an incapicated friend you can personally talk to) require. Do not post features because they seem like a good idea. If they are really useful, they will be requested by someone who requires them.
  403. ### Is your question about youtube-dl?
  404. It may sound strange, but some bug reports we receive are completely unrelated to youtube-dl and relate to a different or even the reporter's own application. Please make sure that you are actually using youtube-dl. If you are using a UI for youtube-dl, report the bug to the maintainer of the actual application providing the UI. On the other hand, if your UI for youtube-dl fails in some way you believe is related to youtube-dl, by all means, go ahead and report the bug.
  405. # COPYRIGHT
  406. youtube-dl is released into the public domain by the copyright holders.
  407. This README file was originally written by Daniel Bolton (<https://github.com/dbbolton>) and is likewise released into the public domain.