Update the changelog.

[youtubedl] / youtube_dl / __init__.py

diff --git a/youtube_dl/__init__.py b/youtube_dl/__init__.py
index 431460c5790fadd46e6880004465c1eda87e290d..4905674ad26f29323264cdcb188f1c9aed621a0a 100644 (file)
--- a/youtube_dl/__init__.py
+++ b/youtube_dl/__init__.py
@@ -1,378 +1,47 @@
 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
 

-__authors__  = (
-    'Ricardo Garcia Gonzalez',
-    'Danny Colligan',
-    'Benjamin Johnson',
-    'Vasyl\' Vavrychuk',
-    'Witold Baryluk',
-    'Paweł Paprota',
-    'Gergely Imreh',
-    'Rogério Brito',
-    'Philipp Hagemeister',
-    'Sören Schulze',
-    'Kevin Ngo',
-    'Ori Avtalion',
-    'shizeeg',
-    'Filippo Valsorda',
-    'Christian Albrecht',
-    'Dave Vasilevsky',
-    'Jaime Marquínez Ferrándiz',
-    'Jeff Crouse',
-    'Osama Khalid',
-    'Michael Walter',
-    'M. Yasoob Ullah Khalid',
-    'Julien Fraichard',
-    'Johny Mo Swag',
-    'Axel Noack',
-    'Albert Kim',
-    'Pierre Rudloff',
-)
+from __future__ import unicode_literals

 
 __license__ = 'Public Domain'
 
 import codecs
 
 __license__ = 'Public Domain'
 
 import codecs

-import getpass
-import optparse
+import io

 import os
 import random
 import os
 import random

-import re
-import shlex
-import socket
-import subprocess

 import sys
 import sys

-import warnings
-import platform

 
 
 
 

-from .utils import *
+from .options import (
+    parseOpts,
+)
+from .compat import (
+    compat_expanduser,
+    compat_getpass,
+    compat_shlex_split,
+    workaround_optparse_bug9161,
+)
+from .utils import (
+    DateRange,
+    decodeOption,
+    DEFAULT_OUTTMPL,
+    DownloadError,
+    match_filter_func,
+    MaxDownloadsReached,
+    preferredencoding,
+    read_batch_urls,
+    SameFileError,
+    setproctitle,
+    std_headers,
+    write_string,
+)

 from .update import update_self
 from .update import update_self

-from .version import __version__
-from .FileDownloader import *
-from .extractor import gen_extractors
+from .downloader import (
+    FileDownloader,
+)
+from .extractor import gen_extractors, list_extractors

 from .YoutubeDL import YoutubeDL
 from .YoutubeDL import YoutubeDL

-from .PostProcessor import *
-
-def parseOpts(overrideArguments=None):
-    def _readOptions(filename_bytes):
-        try:
-            optionf = open(filename_bytes)
-        except IOError:
-            return [] # silently skip if file is not present
-        try:
-            res = []
-            for l in optionf:
-                res += shlex.split(l, comments=True)
-        finally:
-            optionf.close()
-        return res

 
 

-    def _format_option_string(option):
-        ''' ('-o', '--option') -> -o, --format METAVAR'''
-
-        opts = []
-
-        if option._short_opts:
-            opts.append(option._short_opts[0])
-        if option._long_opts:
-            opts.append(option._long_opts[0])
-        if len(opts) > 1:
-            opts.insert(1, ', ')
-
-        if option.takes_value(): opts.append(' %s' % option.metavar)
-
-        return "".join(opts)
-
-    def _comma_separated_values_options_callback(option, opt_str, value, parser):
-        setattr(parser.values, option.dest, value.split(','))
-
-    def _find_term_columns():
-        columns = os.environ.get('COLUMNS', None)
-        if columns:
-            return int(columns)
-
-        try:
-            sp = subprocess.Popen(['stty', 'size'], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
-            out,err = sp.communicate()
-            return int(out.split()[1])
-        except:
-            pass
-        return None
-
-    def _hide_login_info(opts):
-        opts = list(opts)
-        for private_opt in ['-p', '--password', '-u', '--username']:
-            try:
-                i = opts.index(private_opt)
-                opts[i+1] = '<PRIVATE>'
-            except ValueError:
-                pass
-        return opts
-
-    max_width = 80
-    max_help_position = 80
-
-    # No need to wrap help messages if we're on a wide console
-    columns = _find_term_columns()
-    if columns: max_width = columns
-
-    fmt = optparse.IndentedHelpFormatter(width=max_width, max_help_position=max_help_position)
-    fmt.format_option_strings = _format_option_string
-
-    kw = {
-        'version'   : __version__,
-        'formatter' : fmt,
-        'usage' : '%prog [options] url [url...]',
-        'conflict_handler' : 'resolve',
-    }
-
-    parser = optparse.OptionParser(**kw)
-
-    # option groups
-    general        = optparse.OptionGroup(parser, 'General Options')
-    selection      = optparse.OptionGroup(parser, 'Video Selection')
-    authentication = optparse.OptionGroup(parser, 'Authentication Options')
-    video_format   = optparse.OptionGroup(parser, 'Video Format Options')
-    subtitles      = optparse.OptionGroup(parser, 'Subtitle Options')
-    downloader     = optparse.OptionGroup(parser, 'Download Options')
-    postproc       = optparse.OptionGroup(parser, 'Post-processing Options')
-    filesystem     = optparse.OptionGroup(parser, 'Filesystem Options')
-    verbosity      = optparse.OptionGroup(parser, 'Verbosity / Simulation Options')
-
-    general.add_option('-h', '--help',
-            action='help', help='print this help text and exit')
-    general.add_option('-v', '--version',
-            action='version', help='print program version and exit')
-    general.add_option('-U', '--update',
-            action='store_true', dest='update_self', help='update this program to latest version. Make sure that you have sufficient permissions (run with sudo if needed)')
-    general.add_option('-i', '--ignore-errors',
-            action='store_true', dest='ignoreerrors', help='continue on download errors', default=False)
-    general.add_option('--dump-user-agent',
-            action='store_true', dest='dump_user_agent',
-            help='display the current browser identification', default=False)
-    general.add_option('--user-agent',
-            dest='user_agent', help='specify a custom user agent', metavar='UA')
-    general.add_option('--referer',
-            dest='referer', help='specify a custom referer, use if the video access is restricted to one domain',
-            metavar='REF', default=None)
-    general.add_option('--list-extractors',
-            action='store_true', dest='list_extractors',
-            help='List all supported extractors and the URLs they would handle', default=False)
-    general.add_option('--extractor-descriptions',
-            action='store_true', dest='list_extractor_descriptions',
-            help='Output descriptions of all supported extractors', default=False)
-    general.add_option('--proxy', dest='proxy', default=None, help='Use the specified HTTP/HTTPS proxy', metavar='URL')
-    general.add_option('--no-check-certificate', action='store_true', dest='no_check_certificate', default=False, help='Suppress HTTPS certificate validation.')
-
-
-    selection.add_option('--playlist-start',
-            dest='playliststart', metavar='NUMBER', help='playlist video to start at (default is %default)', default=1)
-    selection.add_option('--playlist-end',
-            dest='playlistend', metavar='NUMBER', help='playlist video to end at (default is last)', default=-1)
-    selection.add_option('--match-title', dest='matchtitle', metavar='REGEX',help='download only matching titles (regex or caseless sub-string)')
-    selection.add_option('--reject-title', dest='rejecttitle', metavar='REGEX',help='skip download for matching titles (regex or caseless sub-string)')
-    selection.add_option('--max-downloads', metavar='NUMBER', dest='max_downloads', help='Abort after downloading NUMBER files', default=None)
-    selection.add_option('--min-filesize', metavar='SIZE', dest='min_filesize', help="Do not download any videos smaller than SIZE (e.g. 50k or 44.6m)", default=None)
-    selection.add_option('--max-filesize', metavar='SIZE', dest='max_filesize', help="Do not download any videos larger than SIZE (e.g. 50k or 44.6m)", default=None)
-    selection.add_option('--date', metavar='DATE', dest='date', help='download only videos uploaded in this date', default=None)
-    selection.add_option('--datebefore', metavar='DATE', dest='datebefore', help='download only videos uploaded before this date', default=None)
-    selection.add_option('--dateafter', metavar='DATE', dest='dateafter', help='download only videos uploaded after this date', default=None)
-
-
-    authentication.add_option('-u', '--username',
-            dest='username', metavar='USERNAME', help='account username')
-    authentication.add_option('-p', '--password',
-            dest='password', metavar='PASSWORD', help='account password')
-    authentication.add_option('-n', '--netrc',
-            action='store_true', dest='usenetrc', help='use .netrc authentication data', default=False)
-    authentication.add_option('--video-password',
-            dest='videopassword', metavar='PASSWORD', help='video password (vimeo only)')
-
-
-    video_format.add_option('-f', '--format',
-            action='store', dest='format', metavar='FORMAT',
-            help='video format code, specifiy the order of preference using slashes: "-f 22/17/18"')
-    video_format.add_option('--all-formats',
-            action='store_const', dest='format', help='download all available video formats', const='all')
-    video_format.add_option('--prefer-free-formats',
-            action='store_true', dest='prefer_free_formats', default=False, help='prefer free video formats unless a specific one is requested')
-    video_format.add_option('--max-quality',
-            action='store', dest='format_limit', metavar='FORMAT', help='highest quality format to download')
-    video_format.add_option('-F', '--list-formats',
-            action='store_true', dest='listformats', help='list all available formats (currently youtube only)')
-
-    subtitles.add_option('--write-sub', '--write-srt',
-            action='store_true', dest='writesubtitles',
-            help='write subtitle file (currently youtube only)', default=False)
-    subtitles.add_option('--write-auto-sub', '--write-automatic-sub',
-            action='store_true', dest='writeautomaticsub',
-            help='write automatic subtitle file (currently youtube only)', default=False)
-    subtitles.add_option('--only-sub',
-            action='store_true', dest='skip_download',
-            help='[deprecated] alias of --skip-download', default=False)
-    subtitles.add_option('--all-subs',
-            action='store_true', dest='allsubtitles',
-            help='downloads all the available subtitles of the video', default=False)
-    subtitles.add_option('--list-subs',
-            action='store_true', dest='listsubtitles',
-            help='lists all available subtitles for the video', default=False)
-    subtitles.add_option('--sub-format',
-            action='store', dest='subtitlesformat', metavar='FORMAT',
-            help='subtitle format (default=srt) ([sbv/vtt] youtube only)', default='srt')
-    subtitles.add_option('--sub-lang', '--sub-langs', '--srt-lang',
-            action='callback', dest='subtitleslang', metavar='LANGS', type='str',
-            default=[], callback=_comma_separated_values_options_callback,
-            help='languages of the subtitles to download (optional) separated by commas, use IETF language tags like \'en,pt\'')
-
-    downloader.add_option('-r', '--rate-limit',
-            dest='ratelimit', metavar='LIMIT', help='maximum download rate (e.g. 50k or 44.6m)')
-    downloader.add_option('-R', '--retries',
-            dest='retries', metavar='RETRIES', help='number of retries (default is %default)', default=10)
-    downloader.add_option('--buffer-size',
-            dest='buffersize', metavar='SIZE', help='size of download buffer (e.g. 1024 or 16k) (default is %default)', default="1024")
-    downloader.add_option('--no-resize-buffer',
-            action='store_true', dest='noresizebuffer',
-            help='do not automatically adjust the buffer size. By default, the buffer size is automatically resized from an initial value of SIZE.', default=False)
-    downloader.add_option('--test', action='store_true', dest='test', default=False, help=optparse.SUPPRESS_HELP)
-
-    verbosity.add_option('-q', '--quiet',
-            action='store_true', dest='quiet', help='activates quiet mode', default=False)
-    verbosity.add_option('-s', '--simulate',
-            action='store_true', dest='simulate', help='do not download the video and do not write anything to disk', default=False)
-    verbosity.add_option('--skip-download',
-            action='store_true', dest='skip_download', help='do not download the video', default=False)
-    verbosity.add_option('-g', '--get-url',
-            action='store_true', dest='geturl', help='simulate, quiet but print URL', default=False)
-    verbosity.add_option('-e', '--get-title',
-            action='store_true', dest='gettitle', help='simulate, quiet but print title', default=False)
-    verbosity.add_option('--get-id',
-            action='store_true', dest='getid', help='simulate, quiet but print id', default=False)
-    verbosity.add_option('--get-thumbnail',
-            action='store_true', dest='getthumbnail',
-            help='simulate, quiet but print thumbnail URL', default=False)
-    verbosity.add_option('--get-description',
-            action='store_true', dest='getdescription',
-            help='simulate, quiet but print video description', default=False)
-    verbosity.add_option('--get-filename',
-            action='store_true', dest='getfilename',
-            help='simulate, quiet but print output filename', default=False)
-    verbosity.add_option('--get-format',
-            action='store_true', dest='getformat',
-            help='simulate, quiet but print output format', default=False)
-    verbosity.add_option('--newline',
-            action='store_true', dest='progress_with_newline', help='output progress bar as new lines', default=False)
-    verbosity.add_option('--no-progress',
-            action='store_true', dest='noprogress', help='do not print progress bar', default=False)
-    verbosity.add_option('--console-title',
-            action='store_true', dest='consoletitle',
-            help='display progress in console titlebar', default=False)
-    verbosity.add_option('-v', '--verbose',
-            action='store_true', dest='verbose', help='print various debugging information', default=False)
-    verbosity.add_option('--dump-intermediate-pages',
-            action='store_true', dest='dump_intermediate_pages', default=False,
-            help='print downloaded pages to debug problems(very verbose)')
-
-    filesystem.add_option('-t', '--title',
-            action='store_true', dest='usetitle', help='use title in file name (default)', default=False)
-    filesystem.add_option('--id',
-            action='store_true', dest='useid', help='use only video ID in file name', default=False)
-    filesystem.add_option('-l', '--literal',
-            action='store_true', dest='usetitle', help='[deprecated] alias of --title', default=False)
-    filesystem.add_option('-A', '--auto-number',
-            action='store_true', dest='autonumber',
-            help='number downloaded files starting from 00000', default=False)
-    filesystem.add_option('-o', '--output',
-            dest='outtmpl', metavar='TEMPLATE',
-            help=('output filename template. Use %(title)s to get the title, '
-                  '%(uploader)s for the uploader name, %(uploader_id)s for the uploader nickname if different, '
-                  '%(autonumber)s to get an automatically incremented number, '
-                  '%(ext)s for the filename extension, %(upload_date)s for the upload date (YYYYMMDD), '
-                  '%(extractor)s for the provider (youtube, metacafe, etc), '
-                  '%(id)s for the video id , %(playlist)s for the playlist the video is in, '
-                  '%(playlist_index)s for the position in the playlist and %% for a literal percent. '
-                  'Use - to output to stdout. Can also be used to download to a different directory, '
-                  'for example with -o \'/my/downloads/%(uploader)s/%(title)s-%(id)s.%(ext)s\' .'))
-    filesystem.add_option('--autonumber-size',
-            dest='autonumber_size', metavar='NUMBER',
-            help='Specifies the number of digits in %(autonumber)s when it is present in output filename template or --autonumber option is given')
-    filesystem.add_option('--restrict-filenames',
-            action='store_true', dest='restrictfilenames',
-            help='Restrict filenames to only ASCII characters, and avoid "&" and spaces in filenames', default=False)
-    filesystem.add_option('-a', '--batch-file',
-            dest='batchfile', metavar='FILE', help='file containing URLs to download (\'-\' for stdin)')
-    filesystem.add_option('-w', '--no-overwrites',
-            action='store_true', dest='nooverwrites', help='do not overwrite files', default=False)
-    filesystem.add_option('-c', '--continue',
-            action='store_true', dest='continue_dl', help='resume partially downloaded files', default=True)
-    filesystem.add_option('--no-continue',
-            action='store_false', dest='continue_dl',
-            help='do not resume partially downloaded files (restart from beginning)')
-    filesystem.add_option('--cookies',
-            dest='cookiefile', metavar='FILE', help='file to read cookies from and dump cookie jar in')
-    filesystem.add_option('--no-part',
-            action='store_true', dest='nopart', help='do not use .part files', default=False)
-    filesystem.add_option('--no-mtime',
-            action='store_false', dest='updatetime',
-            help='do not use the Last-modified header to set the file modification time', default=True)
-    filesystem.add_option('--write-description',
-            action='store_true', dest='writedescription',
-            help='write video description to a .description file', default=False)
-    filesystem.add_option('--write-info-json',
-            action='store_true', dest='writeinfojson',
-            help='write video metadata to a .info.json file', default=False)
-    filesystem.add_option('--write-thumbnail',
-            action='store_true', dest='writethumbnail',
-            help='write thumbnail image to disk', default=False)
-
-
-    postproc.add_option('-x', '--extract-audio', action='store_true', dest='extractaudio', default=False,
-            help='convert video files to audio-only files (requires ffmpeg or avconv and ffprobe or avprobe)')
-    postproc.add_option('--audio-format', metavar='FORMAT', dest='audioformat', default='best',
-            help='"best", "aac", "vorbis", "mp3", "m4a", "opus", or "wav"; best by default')
-    postproc.add_option('--audio-quality', metavar='QUALITY', dest='audioquality', default='5',
-            help='ffmpeg/avconv audio quality specification, insert a value between 0 (better) and 9 (worse) for VBR or a specific bitrate like 128K (default 5)')
-    postproc.add_option('--recode-video', metavar='FORMAT', dest='recodevideo', default=None,
-            help='Encode the video to another format if necessary (currently supported: mp4|flv|ogg|webm)')
-    postproc.add_option('-k', '--keep-video', action='store_true', dest='keepvideo', default=False,
-            help='keeps the video file on disk after the post-processing; the video is erased by default')
-    postproc.add_option('--no-post-overwrites', action='store_true', dest='nopostoverwrites', default=False,
-            help='do not overwrite post-processed files; the post-processed files are overwritten by default')
-    postproc.add_option('--embed-subs', action='store_true', dest='embedsubtitles', default=False,
-            help='embed subtitles in the video (only for mp4 videos)')
-
-
-    parser.add_option_group(general)
-    parser.add_option_group(selection)
-    parser.add_option_group(downloader)
-    parser.add_option_group(filesystem)
-    parser.add_option_group(verbosity)
-    parser.add_option_group(video_format)
-    parser.add_option_group(subtitles)
-    parser.add_option_group(authentication)
-    parser.add_option_group(postproc)
-
-    if overrideArguments is not None:
-        opts, args = parser.parse_args(overrideArguments)
-        if opts.verbose:
-            sys.stderr.write(u'[debug] Override config: ' + repr(overrideArguments) + '\n')
-    else:
-        xdg_config_home = os.environ.get('XDG_CONFIG_HOME')
-        if xdg_config_home:
-            userConfFile = os.path.join(xdg_config_home, 'youtube-dl.conf')
-        else:
-            userConfFile = os.path.join(os.path.expanduser('~'), '.config', 'youtube-dl.conf')
-        systemConf = _readOptions('/etc/youtube-dl.conf')
-        userConf = _readOptions(userConfFile)
-        commandLineConf = sys.argv[1:]
-        argv = systemConf + userConf + commandLineConf
-        opts, args = parser.parse_args(argv)
-        if opts.verbose:
-            sys.stderr.write(u'[debug] System config: ' + repr(_hide_login_info(systemConf)) + '\n')
-            sys.stderr.write(u'[debug] User config: ' + repr(_hide_login_info(userConf)) + '\n')
-            sys.stderr.write(u'[debug] Command-line args: ' + repr(_hide_login_info(commandLineConf)) + '\n')
-
-    return parser, opts, args

 
 def _real_main(argv=None):
     # Compatibility fixes for Windows
 
 def _real_main(argv=None):
     # Compatibility fixes for Windows


@@ -380,21 +49,12 @@ def _real_main(argv=None):
         # https://github.com/rg3/youtube-dl/issues/820
         codecs.register(lambda name: codecs.lookup('utf-8') if name == 'cp65001' else None)
 
         # https://github.com/rg3/youtube-dl/issues/820
         codecs.register(lambda name: codecs.lookup('utf-8') if name == 'cp65001' else None)
 

+    workaround_optparse_bug9161()
+
+    setproctitle('youtube-dl')
+

     parser, opts, args = parseOpts(argv)
 
     parser, opts, args = parseOpts(argv)
 

-    # Open appropriate CookieJar
-    if opts.cookiefile is None:
-        jar = compat_cookiejar.CookieJar()
-    else:
-        try:
-            jar = compat_cookiejar.MozillaCookieJar(opts.cookiefile)
-            if os.access(opts.cookiefile, os.R_OK):
-                jar.load()
-        except (IOError, OSError) as err:
-            if opts.verbose:
-                traceback.print_exc()
-            sys.stderr.write(u'ERROR: unable to open cookie file\n')
-            sys.exit(101)

     # Set user agent
     if opts.user_agent is not None:
         std_headers['User-Agent'] = opts.user_agent
     # Set user agent
     if opts.user_agent is not None:
         std_headers['User-Agent'] = opts.user_agent


@@ -403,176 +63,251 @@ def _real_main(argv=None):
     if opts.referer is not None:
         std_headers['Referer'] = opts.referer
 
     if opts.referer is not None:
         std_headers['Referer'] = opts.referer
 

+    # Custom HTTP headers
+    if opts.headers is not None:
+        for h in opts.headers:
+            if ':' not in h:
+                parser.error('wrong header formatting, it should be key:value, not "%s"' % h)
+            key, value = h.split(':', 1)
+            if opts.verbose:
+                write_string('[debug] Adding header from command line option %s:%s\n' % (key, value))
+            std_headers[key] = value
+

     # Dump user agent
     if opts.dump_user_agent:
     # Dump user agent
     if opts.dump_user_agent:

-        compat_print(std_headers['User-Agent'])
+        write_string(std_headers['User-Agent'] + '\n', out=sys.stdout)

         sys.exit(0)
 
     # Batch file verification
         sys.exit(0)
 
     # Batch file verification

-    batchurls = []
+    batch_urls = []

     if opts.batchfile is not None:
         try:
             if opts.batchfile == '-':
                 batchfd = sys.stdin
             else:
     if opts.batchfile is not None:
         try:
             if opts.batchfile == '-':
                 batchfd = sys.stdin
             else:

-                batchfd = open(opts.batchfile, 'r')
-            batchurls = batchfd.readlines()
-            batchurls = [x.strip() for x in batchurls]
-            batchurls = [x for x in batchurls if len(x) > 0 and not re.search(r'^[#/;]', x)]
+                batchfd = io.open(
+                    compat_expanduser(opts.batchfile),
+                    'r', encoding='utf-8', errors='ignore')
+            batch_urls = read_batch_urls(batchfd)

             if opts.verbose:
             if opts.verbose:

-                sys.stderr.write(u'[debug] Batch file urls: ' + repr(batchurls) + u'\n')
+                write_string('[debug] Batch file urls: ' + repr(batch_urls) + '\n')

         except IOError:
         except IOError:

-            sys.exit(u'ERROR: batch file could not be read')
-    all_urls = batchurls + args
+            sys.exit('ERROR: batch file could not be read')
+    all_urls = batch_urls + args

     all_urls = [url.strip() for url in all_urls]
     all_urls = [url.strip() for url in all_urls]

-
-    # General configuration
-    cookie_processor = compat_urllib_request.HTTPCookieProcessor(jar)
-    if opts.proxy is not None:
-        if opts.proxy == '':
-            proxies = {}
-        else:
-            proxies = {'http': opts.proxy, 'https': opts.proxy}
-    else:
-        proxies = compat_urllib_request.getproxies()
-        # Set HTTPS proxy to HTTP one if given (https://github.com/rg3/youtube-dl/issues/805)
-        if 'http' in proxies and 'https' not in proxies:
-            proxies['https'] = proxies['http']
-    proxy_handler = compat_urllib_request.ProxyHandler(proxies)
-    https_handler = make_HTTPS_handler(opts)
-    opener = compat_urllib_request.build_opener(https_handler, proxy_handler, cookie_processor, YoutubeDLHandler())
-    # Delete the default user-agent header, which would otherwise apply in
-    # cases where our custom HTTP handler doesn't come into play
-    # (See https://github.com/rg3/youtube-dl/issues/1309 for details)
-    opener.addheaders =[]
-    compat_urllib_request.install_opener(opener)
-    socket.setdefaulttimeout(300) # 5 minutes should be enough (famous last words)
-
-    extractors = gen_extractors()
+    _enc = preferredencoding()
+    all_urls = [url.decode(_enc, 'ignore') if isinstance(url, bytes) else url for url in all_urls]

 
     if opts.list_extractors:
 
     if opts.list_extractors:

-        for ie in sorted(extractors, key=lambda ie: ie.IE_NAME.lower()):
-            compat_print(ie.IE_NAME + (' (CURRENTLY BROKEN)' if not ie._WORKING else ''))
+        for ie in list_extractors(opts.age_limit):
+            write_string(ie.IE_NAME + (' (CURRENTLY BROKEN)' if not ie._WORKING else '') + '\n', out=sys.stdout)

             matchedUrls = [url for url in all_urls if ie.suitable(url)]
             matchedUrls = [url for url in all_urls if ie.suitable(url)]

-            all_urls = [url for url in all_urls if url not in matchedUrls]

             for mu in matchedUrls:
             for mu in matchedUrls:

-                compat_print(u'  ' + mu)
+                write_string('  ' + mu + '\n', out=sys.stdout)

         sys.exit(0)
     if opts.list_extractor_descriptions:
         sys.exit(0)
     if opts.list_extractor_descriptions:

-        for ie in sorted(extractors, key=lambda ie: ie.IE_NAME.lower()):
+        for ie in list_extractors(opts.age_limit):

             if not ie._WORKING:
                 continue
             desc = getattr(ie, 'IE_DESC', ie.IE_NAME)
             if not ie._WORKING:
                 continue
             desc = getattr(ie, 'IE_DESC', ie.IE_NAME)

+            if desc is False:
+                continue

             if hasattr(ie, 'SEARCH_KEY'):
             if hasattr(ie, 'SEARCH_KEY'):

-                _SEARCHES = (u'cute kittens', u'slithering pythons', u'falling cat', u'angry poodle', u'purple fish', u'running tortoise')
-                _COUNTS = (u'', u'5', u'10', u'all')
-                desc += u' (Example: "%s%s:%s" )' % (ie.SEARCH_KEY, random.choice(_COUNTS), random.choice(_SEARCHES))
-            compat_print(desc)
+                _SEARCHES = ('cute kittens', 'slithering pythons', 'falling cat', 'angry poodle', 'purple fish', 'running tortoise', 'sleeping bunny', 'burping cow')
+                _COUNTS = ('', '5', '10', 'all')
+                desc += ' (Example: "%s%s:%s" )' % (ie.SEARCH_KEY, random.choice(_COUNTS), random.choice(_SEARCHES))
+            write_string(desc + '\n', out=sys.stdout)

         sys.exit(0)
 
         sys.exit(0)
 

-

     # Conflicting, missing and erroneous options
     if opts.usenetrc and (opts.username is not None or opts.password is not None):
     # Conflicting, missing and erroneous options
     if opts.usenetrc and (opts.username is not None or opts.password is not None):

-        parser.error(u'using .netrc conflicts with giving username/password')
+        parser.error('using .netrc conflicts with giving username/password')

     if opts.password is not None and opts.username is None:
     if opts.password is not None and opts.username is None:

-        parser.error(u' account username missing\n')
+        parser.error('account username missing\n')

     if opts.outtmpl is not None and (opts.usetitle or opts.autonumber or opts.useid):
     if opts.outtmpl is not None and (opts.usetitle or opts.autonumber or opts.useid):

-        parser.error(u'using output template conflicts with using title, video ID or auto number')
+        parser.error('using output template conflicts with using title, video ID or auto number')

     if opts.usetitle and opts.useid:
     if opts.usetitle and opts.useid:

-        parser.error(u'using title conflicts with using video ID')
+        parser.error('using title conflicts with using video ID')

     if opts.username is not None and opts.password is None:
     if opts.username is not None and opts.password is None:

-        opts.password = getpass.getpass(u'Type account password and press return:')
+        opts.password = compat_getpass('Type account password and press [Return]: ')

     if opts.ratelimit is not None:
         numeric_limit = FileDownloader.parse_bytes(opts.ratelimit)
         if numeric_limit is None:
     if opts.ratelimit is not None:
         numeric_limit = FileDownloader.parse_bytes(opts.ratelimit)
         if numeric_limit is None:

-            parser.error(u'invalid rate limit specified')
+            parser.error('invalid rate limit specified')

         opts.ratelimit = numeric_limit
     if opts.min_filesize is not None:
         numeric_limit = FileDownloader.parse_bytes(opts.min_filesize)
         if numeric_limit is None:
         opts.ratelimit = numeric_limit
     if opts.min_filesize is not None:
         numeric_limit = FileDownloader.parse_bytes(opts.min_filesize)
         if numeric_limit is None:

-            parser.error(u'invalid min_filesize specified')
+            parser.error('invalid min_filesize specified')

         opts.min_filesize = numeric_limit
     if opts.max_filesize is not None:
         numeric_limit = FileDownloader.parse_bytes(opts.max_filesize)
         if numeric_limit is None:
         opts.min_filesize = numeric_limit
     if opts.max_filesize is not None:
         numeric_limit = FileDownloader.parse_bytes(opts.max_filesize)
         if numeric_limit is None:

-            parser.error(u'invalid max_filesize specified')
+            parser.error('invalid max_filesize specified')

         opts.max_filesize = numeric_limit
         opts.max_filesize = numeric_limit

+
+    def parse_retries(retries):
+        if retries in ('inf', 'infinite'):
+            parsed_retries = float('inf')
+        else:
+            try:
+                parsed_retries = int(retries)
+            except (TypeError, ValueError):
+                parser.error('invalid retry count specified')
+        return parsed_retries

     if opts.retries is not None:
     if opts.retries is not None:

-        try:
-            opts.retries = int(opts.retries)
-        except (TypeError, ValueError) as err:
-            parser.error(u'invalid retry count specified')
+        opts.retries = parse_retries(opts.retries)
+    if opts.fragment_retries is not None:
+        opts.fragment_retries = parse_retries(opts.fragment_retries)

     if opts.buffersize is not None:
         numeric_buffersize = FileDownloader.parse_bytes(opts.buffersize)
         if numeric_buffersize is None:
     if opts.buffersize is not None:
         numeric_buffersize = FileDownloader.parse_bytes(opts.buffersize)
         if numeric_buffersize is None:

-            parser.error(u'invalid buffer size specified')
+            parser.error('invalid buffer size specified')

         opts.buffersize = numeric_buffersize
         opts.buffersize = numeric_buffersize

-    try:
-        opts.playliststart = int(opts.playliststart)
-        if opts.playliststart <= 0:
-            raise ValueError(u'Playlist start must be positive')
-    except (TypeError, ValueError) as err:
-        parser.error(u'invalid playlist start number specified')
-    try:
-        opts.playlistend = int(opts.playlistend)
-        if opts.playlistend != -1 and (opts.playlistend <= 0 or opts.playlistend < opts.playliststart):
-            raise ValueError(u'Playlist end must be greater than playlist start')
-    except (TypeError, ValueError) as err:
-        parser.error(u'invalid playlist end number specified')
+    if opts.playliststart <= 0:
+        raise ValueError('Playlist start must be positive')
+    if opts.playlistend not in (-1, None) and opts.playlistend < opts.playliststart:
+        raise ValueError('Playlist end must be greater than playlist start')

     if opts.extractaudio:
         if opts.audioformat not in ['best', 'aac', 'mp3', 'm4a', 'opus', 'vorbis', 'wav']:
     if opts.extractaudio:
         if opts.audioformat not in ['best', 'aac', 'mp3', 'm4a', 'opus', 'vorbis', 'wav']:

-            parser.error(u'invalid audio format specified')
+            parser.error('invalid audio format specified')

     if opts.audioquality:
         opts.audioquality = opts.audioquality.strip('k').strip('K')
         if not opts.audioquality.isdigit():
     if opts.audioquality:
         opts.audioquality = opts.audioquality.strip('k').strip('K')
         if not opts.audioquality.isdigit():

-            parser.error(u'invalid audio quality specified')
+            parser.error('invalid audio quality specified')

     if opts.recodevideo is not None:
     if opts.recodevideo is not None:

-        if opts.recodevideo not in ['mp4', 'flv', 'webm', 'ogg']:
-            parser.error(u'invalid video recode format specified')
+        if opts.recodevideo not in ['mp4', 'flv', 'webm', 'ogg', 'mkv', 'avi']:
+            parser.error('invalid video recode format specified')
+    if opts.convertsubtitles is not None:
+        if opts.convertsubtitles not in ['srt', 'vtt', 'ass']:
+            parser.error('invalid subtitle format specified')
+

     if opts.date is not None:
         date = DateRange.day(opts.date)
     else:
         date = DateRange(opts.dateafter, opts.datebefore)
 
     if opts.date is not None:
         date = DateRange.day(opts.date)
     else:
         date = DateRange(opts.dateafter, opts.datebefore)
 

-    if sys.version_info < (3,):
-        # In Python 2, sys.argv is a bytestring (also note http://bugs.python.org/issue2128 for Windows systems)
-        if opts.outtmpl is not None:
-            opts.outtmpl = opts.outtmpl.decode(preferredencoding())
-    outtmpl =((opts.outtmpl is not None and opts.outtmpl)
-            or (opts.format == '-1' and opts.usetitle and u'%(title)s-%(id)s-%(format)s.%(ext)s')
-            or (opts.format == '-1' and u'%(id)s-%(format)s.%(ext)s')
-            or (opts.usetitle and opts.autonumber and u'%(autonumber)s-%(title)s-%(id)s.%(ext)s')
-            or (opts.usetitle and u'%(title)s-%(id)s.%(ext)s')
-            or (opts.useid and u'%(id)s.%(ext)s')
-            or (opts.autonumber and u'%(autonumber)s-%(id)s.%(ext)s')
-            or u'%(title)s-%(id)s.%(ext)s')
-
-    # YoutubeDL
-    ydl = YoutubeDL({
+    # Do not download videos when there are audio-only formats
+    if opts.extractaudio and not opts.keepvideo and opts.format is None:
+        opts.format = 'bestaudio/best'
+
+    # --all-sub automatically sets --write-sub if --write-auto-sub is not given
+    # this was the old behaviour if only --all-sub was given.
+    if opts.allsubtitles and not opts.writeautomaticsub:
+        opts.writesubtitles = True
+
+    outtmpl = ((opts.outtmpl is not None and opts.outtmpl) or
+               (opts.format == '-1' and opts.usetitle and '%(title)s-%(id)s-%(format)s.%(ext)s') or
+               (opts.format == '-1' and '%(id)s-%(format)s.%(ext)s') or
+               (opts.usetitle and opts.autonumber and '%(autonumber)s-%(title)s-%(id)s.%(ext)s') or
+               (opts.usetitle and '%(title)s-%(id)s.%(ext)s') or
+               (opts.useid and '%(id)s.%(ext)s') or
+               (opts.autonumber and '%(autonumber)s-%(id)s.%(ext)s') or
+               DEFAULT_OUTTMPL)
+    if not os.path.splitext(outtmpl)[1] and opts.extractaudio:
+        parser.error('Cannot download a video and extract audio into the same'
+                     ' file! Use "{0}.%(ext)s" instead of "{0}" as the output'
+                     ' template'.format(outtmpl))
+
+    any_getting = opts.geturl or opts.gettitle or opts.getid or opts.getthumbnail or opts.getdescription or opts.getfilename or opts.getformat or opts.getduration or opts.dumpjson or opts.dump_single_json
+    any_printing = opts.print_json
+    download_archive_fn = compat_expanduser(opts.download_archive) if opts.download_archive is not None else opts.download_archive
+
+    # PostProcessors
+    postprocessors = []
+    # Add the metadata pp first, the other pps will copy it
+    if opts.metafromtitle:
+        postprocessors.append({
+            'key': 'MetadataFromTitle',
+            'titleformat': opts.metafromtitle
+        })
+    if opts.addmetadata:
+        postprocessors.append({'key': 'FFmpegMetadata'})
+    if opts.extractaudio:
+        postprocessors.append({
+            'key': 'FFmpegExtractAudio',
+            'preferredcodec': opts.audioformat,
+            'preferredquality': opts.audioquality,
+            'nopostoverwrites': opts.nopostoverwrites,
+        })
+    if opts.recodevideo:
+        postprocessors.append({
+            'key': 'FFmpegVideoConvertor',
+            'preferedformat': opts.recodevideo,
+        })
+    if opts.convertsubtitles:
+        postprocessors.append({
+            'key': 'FFmpegSubtitlesConvertor',
+            'format': opts.convertsubtitles,
+        })
+    if opts.embedsubtitles:
+        postprocessors.append({
+            'key': 'FFmpegEmbedSubtitle',
+        })
+    if opts.xattrs:
+        postprocessors.append({'key': 'XAttrMetadata'})
+    if opts.embedthumbnail:
+        already_have_thumbnail = opts.writethumbnail or opts.write_all_thumbnails
+        postprocessors.append({
+            'key': 'EmbedThumbnail',
+            'already_have_thumbnail': already_have_thumbnail
+        })
+        if not already_have_thumbnail:
+            opts.writethumbnail = True
+    # Please keep ExecAfterDownload towards the bottom as it allows the user to modify the final file in any way.
+    # So if the user is able to remove the file before your postprocessor runs it might cause a few problems.
+    if opts.exec_cmd:
+        postprocessors.append({
+            'key': 'ExecAfterDownload',
+            'exec_cmd': opts.exec_cmd,
+        })
+    if opts.xattr_set_filesize:
+        try:
+            import xattr
+            xattr  # Confuse flake8
+        except ImportError:
+            parser.error('setting filesize xattr requested but python-xattr is not available')
+    external_downloader_args = None
+    if opts.external_downloader_args:
+        external_downloader_args = compat_shlex_split(opts.external_downloader_args)
+    postprocessor_args = None
+    if opts.postprocessor_args:
+        postprocessor_args = compat_shlex_split(opts.postprocessor_args)
+    match_filter = (
+        None if opts.match_filter is None
+        else match_filter_func(opts.match_filter))
+
+    ydl_opts = {

         'usenetrc': opts.usenetrc,
         'username': opts.username,
         'password': opts.password,
         'usenetrc': opts.usenetrc,
         'username': opts.username,
         'password': opts.password,

+        'twofactor': opts.twofactor,

         'videopassword': opts.videopassword,
         'videopassword': opts.videopassword,

-        'quiet': (opts.quiet or opts.geturl or opts.gettitle or opts.getid or opts.getthumbnail or opts.getdescription or opts.getfilename or opts.getformat),
+        'quiet': (opts.quiet or any_getting or any_printing),
+        'no_warnings': opts.no_warnings,

         'forceurl': opts.geturl,
         'forcetitle': opts.gettitle,
         'forceid': opts.getid,
         'forcethumbnail': opts.getthumbnail,
         'forcedescription': opts.getdescription,
         'forceurl': opts.geturl,
         'forcetitle': opts.gettitle,
         'forceid': opts.getid,
         'forcethumbnail': opts.getthumbnail,
         'forcedescription': opts.getdescription,

+        'forceduration': opts.getduration,

         'forcefilename': opts.getfilename,
         'forceformat': opts.getformat,
         'forcefilename': opts.getfilename,
         'forceformat': opts.getformat,

-        'simulate': opts.simulate,
-        'skip_download': (opts.skip_download or opts.simulate or opts.geturl or opts.gettitle or opts.getid or opts.getthumbnail or opts.getdescription or opts.getfilename or opts.getformat),
+        'forcejson': opts.dumpjson or opts.print_json,
+        'dump_single_json': opts.dump_single_json,
+        'simulate': opts.simulate or any_getting,
+        'skip_download': opts.skip_download,

         'format': opts.format,
         'format': opts.format,

-        'format_limit': opts.format_limit,

         'listformats': opts.listformats,
         'outtmpl': outtmpl,
         'autonumber_size': opts.autonumber_size,
         'restrictfilenames': opts.restrictfilenames,
         'ignoreerrors': opts.ignoreerrors,
         'listformats': opts.listformats,
         'outtmpl': outtmpl,
         'autonumber_size': opts.autonumber_size,
         'restrictfilenames': opts.restrictfilenames,
         'ignoreerrors': opts.ignoreerrors,

+        'force_generic_extractor': opts.force_generic_extractor,

         'ratelimit': opts.ratelimit,
         'nooverwrites': opts.nooverwrites,
         'retries': opts.retries,
         'ratelimit': opts.ratelimit,
         'nooverwrites': opts.nooverwrites,
         'retries': opts.retries,

+        'fragment_retries': opts.fragment_retries,

         'buffersize': opts.buffersize,
         'noresizebuffer': opts.noresizebuffer,
         'continuedl': opts.continue_dl,
         'buffersize': opts.buffersize,
         'noresizebuffer': opts.noresizebuffer,
         'continuedl': opts.continue_dl,


@@ -580,93 +315,114 @@ def _real_main(argv=None):
         'progress_with_newline': opts.progress_with_newline,
         'playliststart': opts.playliststart,
         'playlistend': opts.playlistend,
         'progress_with_newline': opts.progress_with_newline,
         'playliststart': opts.playliststart,
         'playlistend': opts.playlistend,

+        'playlistreverse': opts.playlist_reverse,
+        'noplaylist': opts.noplaylist,

         'logtostderr': opts.outtmpl == '-',
         'consoletitle': opts.consoletitle,
         'nopart': opts.nopart,
         'updatetime': opts.updatetime,
         'writedescription': opts.writedescription,
         'logtostderr': opts.outtmpl == '-',
         'consoletitle': opts.consoletitle,
         'nopart': opts.nopart,
         'updatetime': opts.updatetime,
         'writedescription': opts.writedescription,

+        'writeannotations': opts.writeannotations,

         'writeinfojson': opts.writeinfojson,
         'writethumbnail': opts.writethumbnail,
         'writeinfojson': opts.writeinfojson,
         'writethumbnail': opts.writethumbnail,

+        'write_all_thumbnails': opts.write_all_thumbnails,

         'writesubtitles': opts.writesubtitles,
         'writeautomaticsub': opts.writeautomaticsub,
         'allsubtitles': opts.allsubtitles,
         'listsubtitles': opts.listsubtitles,
         'subtitlesformat': opts.subtitlesformat,
         'writesubtitles': opts.writesubtitles,
         'writeautomaticsub': opts.writeautomaticsub,
         'allsubtitles': opts.allsubtitles,
         'listsubtitles': opts.listsubtitles,
         'subtitlesformat': opts.subtitlesformat,

-        'subtitleslangs': opts.subtitleslang,
+        'subtitleslangs': opts.subtitleslangs,

         'matchtitle': decodeOption(opts.matchtitle),
         'rejecttitle': decodeOption(opts.rejecttitle),
         'max_downloads': opts.max_downloads,
         'prefer_free_formats': opts.prefer_free_formats,
         'verbose': opts.verbose,
         'dump_intermediate_pages': opts.dump_intermediate_pages,
         'matchtitle': decodeOption(opts.matchtitle),
         'rejecttitle': decodeOption(opts.rejecttitle),
         'max_downloads': opts.max_downloads,
         'prefer_free_formats': opts.prefer_free_formats,
         'verbose': opts.verbose,
         'dump_intermediate_pages': opts.dump_intermediate_pages,

+        'write_pages': opts.write_pages,

         'test': opts.test,
         'keepvideo': opts.keepvideo,
         'min_filesize': opts.min_filesize,
         'max_filesize': opts.max_filesize,
         'test': opts.test,
         'keepvideo': opts.keepvideo,
         'min_filesize': opts.min_filesize,
         'max_filesize': opts.max_filesize,

+        'min_views': opts.min_views,
+        'max_views': opts.max_views,

         'daterange': date,
         'daterange': date,

-        })
+        'cachedir': opts.cachedir,
+        'youtube_print_sig_code': opts.youtube_print_sig_code,
+        'age_limit': opts.age_limit,
+        'download_archive': download_archive_fn,
+        'cookiefile': opts.cookiefile,
+        'nocheckcertificate': opts.no_check_certificate,
+        'prefer_insecure': opts.prefer_insecure,
+        'proxy': opts.proxy,
+        'socket_timeout': opts.socket_timeout,
+        'bidi_workaround': opts.bidi_workaround,
+        'debug_printtraffic': opts.debug_printtraffic,
+        'prefer_ffmpeg': opts.prefer_ffmpeg,
+        'include_ads': opts.include_ads,
+        'default_search': opts.default_search,
+        'youtube_include_dash_manifest': opts.youtube_include_dash_manifest,
+        'encoding': opts.encoding,
+        'extract_flat': opts.extract_flat,
+        'mark_watched': opts.mark_watched,
+        'merge_output_format': opts.merge_output_format,
+        'postprocessors': postprocessors,
+        'fixup': opts.fixup,
+        'source_address': opts.source_address,
+        'call_home': opts.call_home,
+        'sleep_interval': opts.sleep_interval,
+        'external_downloader': opts.external_downloader,
+        'list_thumbnails': opts.list_thumbnails,
+        'playlist_items': opts.playlist_items,
+        'xattr_set_filesize': opts.xattr_set_filesize,
+        'match_filter': match_filter,
+        'no_color': opts.no_color,
+        'ffmpeg_location': opts.ffmpeg_location,
+        'hls_prefer_native': opts.hls_prefer_native,
+        'hls_use_mpegts': opts.hls_use_mpegts,
+        'external_downloader_args': external_downloader_args,
+        'postprocessor_args': postprocessor_args,
+        'cn_verification_proxy': opts.cn_verification_proxy,
+    }

 
 

-    if opts.verbose:
-        sys.stderr.write(u'[debug] youtube-dl version ' + __version__ + u'\n')
-        try:
-            sp = subprocess.Popen(
-                ['git', 'rev-parse', '--short', 'HEAD'],
-                stdout=subprocess.PIPE, stderr=subprocess.PIPE,
-                cwd=os.path.dirname(os.path.abspath(__file__)))
-            out, err = sp.communicate()
-            out = out.decode().strip()
-            if re.match('[0-9a-f]+', out):
-                sys.stderr.write(u'[debug] Git HEAD: ' + out + u'\n')
-        except:
-            try:
-                sys.exc_clear()
-            except:
-                pass
-        sys.stderr.write(u'[debug] Python version %s - %s' %(platform.python_version(), platform_name()) + u'\n')
-        sys.stderr.write(u'[debug] Proxy map: ' + str(proxy_handler.proxies) + u'\n')
+    with YoutubeDL(ydl_opts) as ydl:
+        # Update version
+        if opts.update_self:
+            update_self(ydl.to_screen, opts.verbose, ydl._opener)

 
 

-    ydl.add_default_info_extractors()
+        # Remove cache dir
+        if opts.rm_cachedir:
+            ydl.cache.remove()

 
 

-    # PostProcessors
-    if opts.extractaudio:
-        ydl.add_post_processor(FFmpegExtractAudioPP(preferredcodec=opts.audioformat, preferredquality=opts.audioquality, nopostoverwrites=opts.nopostoverwrites))
-    if opts.recodevideo:
-        ydl.add_post_processor(FFmpegVideoConvertor(preferedformat=opts.recodevideo))
-    if opts.embedsubtitles:
-        ydl.add_post_processor(FFmpegEmbedSubtitlePP(subtitlesformat=opts.subtitlesformat))
-
-    # Update version
-    if opts.update_self:
-        update_self(ydl.to_screen, opts.verbose, sys.argv[0])
-
-    # Maybe do nothing
-    if len(all_urls) < 1:
-        if not opts.update_self:
-            parser.error(u'you must provide at least one URL')
-        else:
-            sys.exit()
+        # Maybe do nothing
+        if (len(all_urls) < 1) and (opts.load_info_filename is None):
+            if opts.update_self or opts.rm_cachedir:
+                sys.exit()

 
 

-    try:
-        retcode = ydl.download(all_urls)
-    except MaxDownloadsReached:
-        ydl.to_screen(u'--max-download limit reached, aborting.')
-        retcode = 101
+            ydl.warn_if_short_id(sys.argv[1:] if argv is None else argv)
+            parser.error(
+                'You must provide at least one URL.\n'
+                'Type youtube-dl --help to see a list of all options.')

 
 

-    # Dump cookie jar if requested
-    if opts.cookiefile is not None:

         try:
         try:

-            jar.save()
-        except (IOError, OSError) as err:
-            sys.exit(u'ERROR: unable to save cookie jar')
+            if opts.load_info_filename is not None:
+                retcode = ydl.download_with_info_file(compat_expanduser(opts.load_info_filename))
+            else:
+                retcode = ydl.download(all_urls)
+        except MaxDownloadsReached:
+            ydl.to_screen('--max-download limit reached, aborting.')
+            retcode = 101

 
     sys.exit(retcode)
 
 
     sys.exit(retcode)
 

+

 def main(argv=None):
     try:
         _real_main(argv)
     except DownloadError:
         sys.exit(1)
     except SameFileError:
 def main(argv=None):
     try:
         _real_main(argv)
     except DownloadError:
         sys.exit(1)
     except SameFileError:

-        sys.exit(u'ERROR: fixed output name but more than one file to download')
+        sys.exit('ERROR: fixed output name but more than one file to download')

     except KeyboardInterrupt:
     except KeyboardInterrupt:

-        sys.exit(u'\nERROR: Interrupted by user')
+        sys.exit('\nERROR: Interrupted by user')
+
+__all__ = ['main', 'YoutubeDL', 'gen_extractors', 'list_extractors']