Convert all tabs to 4 spaces (PEP8)

1 files changed, 526 insertions, 526 deletions

diff --git a/youtube_dl/__init__.py b/youtube_dl/__init__.py
index f2f238a4f..a0caa21b0 100644
--- a/youtube_dl/__init__.py
+++ b/youtube_dl/__init__.py
@@ -4,22 +4,22 @@
 from __future__ import with_statement
 
 __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',
-	)
+    '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',
+    )
 
 __license__ = 'Public Domain'
 __version__ = '2012.11.29'
@@ -45,529 +45,529 @@ from InfoExtractors import *
 from PostProcessor import *
 
 def updateSelf(downloader, filename):
-	''' Update the program file with the latest version from the repository '''
-	# Note: downloader only used for options
-
-	if not os.access(filename, os.W_OK):
-		sys.exit('ERROR: no write permissions on %s' % filename)
-
-	downloader.to_screen(u'Updating to latest version...')
-
-	urlv = compat_urllib_request.urlopen(UPDATE_URL_VERSION)
-	newversion = urlv.read().strip()
-	if newversion == __version__:
-		downloader.to_screen(u'youtube-dl is up-to-date (' + __version__ + ')')
-		return
-	urlv.close()
-
-	if hasattr(sys, "frozen"): #py2exe
-		exe = os.path.abspath(filename)
-		directory = os.path.dirname(exe)
-		if not os.access(directory, os.W_OK):
-			sys.exit('ERROR: no write permissions on %s' % directory)
-
-		try:
-			urlh = compat_urllib_request.urlopen(UPDATE_URL_EXE)
-			newcontent = urlh.read()
-			urlh.close()
-			with open(exe + '.new', 'wb') as outf:
-				outf.write(newcontent)
-		except (IOError, OSError) as err:
-			sys.exit('ERROR: unable to download latest version')
-
-		try:
-			bat = os.path.join(directory, 'youtube-dl-updater.bat')
-			b = open(bat, 'w')
-			b.write("""
+    ''' Update the program file with the latest version from the repository '''
+    # Note: downloader only used for options
+
+    if not os.access(filename, os.W_OK):
+        sys.exit('ERROR: no write permissions on %s' % filename)
+
+    downloader.to_screen(u'Updating to latest version...')
+
+    urlv = compat_urllib_request.urlopen(UPDATE_URL_VERSION)
+    newversion = urlv.read().strip()
+    if newversion == __version__:
+        downloader.to_screen(u'youtube-dl is up-to-date (' + __version__ + ')')
+        return
+    urlv.close()
+
+    if hasattr(sys, "frozen"): #py2exe
+        exe = os.path.abspath(filename)
+        directory = os.path.dirname(exe)
+        if not os.access(directory, os.W_OK):
+            sys.exit('ERROR: no write permissions on %s' % directory)
+
+        try:
+            urlh = compat_urllib_request.urlopen(UPDATE_URL_EXE)
+            newcontent = urlh.read()
+            urlh.close()
+            with open(exe + '.new', 'wb') as outf:
+                outf.write(newcontent)
+        except (IOError, OSError) as err:
+            sys.exit('ERROR: unable to download latest version')
+
+        try:
+            bat = os.path.join(directory, 'youtube-dl-updater.bat')
+            b = open(bat, 'w')
+            b.write("""
 echo Updating youtube-dl...
 ping 127.0.0.1 -n 5 -w 1000 > NUL
 move /Y "%s.new" "%s"
 del "%s"
-			\n""" %(exe, exe, bat))
-			b.close()
+            \n""" %(exe, exe, bat))
+            b.close()
 
-			os.startfile(bat)
-		except (IOError, OSError) as err:
-			sys.exit('ERROR: unable to overwrite current version')
+            os.startfile(bat)
+        except (IOError, OSError) as err:
+            sys.exit('ERROR: unable to overwrite current version')
 
-	else:
-		try:
-			urlh = compat_urllib_request.urlopen(UPDATE_URL)
-			newcontent = urlh.read()
-			urlh.close()
-		except (IOError, OSError) as err:
-			sys.exit('ERROR: unable to download latest version')
+    else:
+        try:
+            urlh = compat_urllib_request.urlopen(UPDATE_URL)
+            newcontent = urlh.read()
+            urlh.close()
+        except (IOError, OSError) as err:
+            sys.exit('ERROR: unable to download latest version')
 
-		try:
-			with open(filename, 'wb') as outf:
-				outf.write(newcontent)
-		except (IOError, OSError) as err:
-			sys.exit('ERROR: unable to overwrite current version')
+        try:
+            with open(filename, 'wb') as outf:
+                outf.write(newcontent)
+        except (IOError, OSError) as err:
+            sys.exit('ERROR: unable to overwrite current version')
 
-	downloader.to_screen(u'Updated youtube-dl. Restart youtube-dl to use the new version.')
+    downloader.to_screen(u'Updated youtube-dl. Restart youtube-dl to use the new version.')
 
 def parseOpts():
-	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 _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
-
-	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')
-	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')
-	general.add_option('-i', '--ignore-errors',
-			action='store_true', dest='ignoreerrors', help='continue on download errors', default=False)
-	general.add_option('-r', '--rate-limit',
-			dest='ratelimit', metavar='LIMIT', help='download rate limit (e.g. 50k or 44.6m)')
-	general.add_option('-R', '--retries',
-			dest='retries', metavar='RETRIES', help='number of retries (default is %default)', default=10)
-	general.add_option('--buffer-size',
-			dest='buffersize', metavar='SIZE', help='size of download buffer (e.g. 1024 or 16k) (default is %default)', default="1024")
-	general.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)
-	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('--list-extractors',
-			action='store_true', dest='list_extractors',
-			help='List all supported extractors and the URLs they would handle', default=False)
-
-	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)
-
-	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)
-
-
-	video_format.add_option('-f', '--format',
-			action='store', dest='format', metavar='FORMAT', help='video format code')
-	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)')
-	video_format.add_option('--write-srt',
-			action='store_true', dest='writesubtitles',
-			help='write video closed captions to a .srt file (currently youtube only)', default=False)
-	video_format.add_option('--srt-lang',
-			action='store', dest='subtitleslang', metavar='LANG',
-			help='language of the closed captions to download (optional) use IETF language tags like \'en\'')
-
-
-	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-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('--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)
-
-
-	filesystem.add_option('-t', '--title',
-			action='store_true', dest='usetitle', help='use title in file name', default=False)
-	filesystem.add_option('--id',
-			action='store_true', dest='useid', help='use 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, %(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 and %% for a literal percent. Use - to output to stdout.')
-	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)
-
-
-	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", 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('-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')
-
-
-	parser.add_option_group(general)
-	parser.add_option_group(selection)
-	parser.add_option_group(filesystem)
-	parser.add_option_group(verbosity)
-	parser.add_option_group(video_format)
-	parser.add_option_group(authentication)
-	parser.add_option_group(postproc)
-
-	xdg_config_home = os.environ.get('XDG_CONFIG_HOME')
-	if xdg_config_home:
-		userConf = os.path.join(xdg_config_home, 'youtube-dl.conf')
-	else:
-		userConf = os.path.join(os.path.expanduser('~'), '.config', 'youtube-dl.conf')
-	argv = _readOptions('/etc/youtube-dl.conf') + _readOptions(userConf) + sys.argv[1:]
-	opts, args = parser.parse_args(argv)
-
-	return parser, opts, args
+    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 _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
+
+    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')
+    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')
+    general.add_option('-i', '--ignore-errors',
+            action='store_true', dest='ignoreerrors', help='continue on download errors', default=False)
+    general.add_option('-r', '--rate-limit',
+            dest='ratelimit', metavar='LIMIT', help='download rate limit (e.g. 50k or 44.6m)')
+    general.add_option('-R', '--retries',
+            dest='retries', metavar='RETRIES', help='number of retries (default is %default)', default=10)
+    general.add_option('--buffer-size',
+            dest='buffersize', metavar='SIZE', help='size of download buffer (e.g. 1024 or 16k) (default is %default)', default="1024")
+    general.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)
+    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('--list-extractors',
+            action='store_true', dest='list_extractors',
+            help='List all supported extractors and the URLs they would handle', default=False)
+
+    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)
+
+    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)
+
+
+    video_format.add_option('-f', '--format',
+            action='store', dest='format', metavar='FORMAT', help='video format code')
+    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)')
+    video_format.add_option('--write-srt',
+            action='store_true', dest='writesubtitles',
+            help='write video closed captions to a .srt file (currently youtube only)', default=False)
+    video_format.add_option('--srt-lang',
+            action='store', dest='subtitleslang', metavar='LANG',
+            help='language of the closed captions to download (optional) use IETF language tags like \'en\'')
+
+
+    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-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('--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)
+
+
+    filesystem.add_option('-t', '--title',
+            action='store_true', dest='usetitle', help='use title in file name', default=False)
+    filesystem.add_option('--id',
+            action='store_true', dest='useid', help='use 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, %(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 and %% for a literal percent. Use - to output to stdout.')
+    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)
+
+
+    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", 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('-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')
+
+
+    parser.add_option_group(general)
+    parser.add_option_group(selection)
+    parser.add_option_group(filesystem)
+    parser.add_option_group(verbosity)
+    parser.add_option_group(video_format)
+    parser.add_option_group(authentication)
+    parser.add_option_group(postproc)
+
+    xdg_config_home = os.environ.get('XDG_CONFIG_HOME')
+    if xdg_config_home:
+        userConf = os.path.join(xdg_config_home, 'youtube-dl.conf')
+    else:
+        userConf = os.path.join(os.path.expanduser('~'), '.config', 'youtube-dl.conf')
+    argv = _readOptions('/etc/youtube-dl.conf') + _readOptions(userConf) + sys.argv[1:]
+    opts, args = parser.parse_args(argv)
+
+    return parser, opts, args
 
 def gen_extractors():
-	""" Return a list of an instance of every supported extractor.
-	The order does matter; the first extractor matched is the one handling the URL.
-	"""
-	return [
-		YoutubePlaylistIE(),
-		YoutubeChannelIE(),
-		YoutubeUserIE(),
-		YoutubeSearchIE(),
-		YoutubeIE(),
-		MetacafeIE(),
-		DailymotionIE(),
-		GoogleIE(),
-		GoogleSearchIE(),
-		PhotobucketIE(),
-		YahooIE(),
-		YahooSearchIE(),
-		DepositFilesIE(),
-		FacebookIE(),
-		BlipTVUserIE(),
-		BlipTVIE(),
-		VimeoIE(),
-		MyVideoIE(),
-		ComedyCentralIE(),
-		EscapistIE(),
-		CollegeHumorIE(),
-		XVideosIE(),
-		SoundcloudIE(),
-		InfoQIE(),
-		MixcloudIE(),
-		StanfordOpenClassroomIE(),
-		MTVIE(),
-		YoukuIE(),
-		XNXXIE(),
-		GooglePlusIE(),
-		ArteTvIE(),
-		GenericIE()
-	]
+    """ Return a list of an instance of every supported extractor.
+    The order does matter; the first extractor matched is the one handling the URL.
+    """
+    return [
+        YoutubePlaylistIE(),
+        YoutubeChannelIE(),
+        YoutubeUserIE(),
+        YoutubeSearchIE(),
+        YoutubeIE(),
+        MetacafeIE(),
+        DailymotionIE(),
+        GoogleIE(),
+        GoogleSearchIE(),
+        PhotobucketIE(),
+        YahooIE(),
+        YahooSearchIE(),
+        DepositFilesIE(),
+        FacebookIE(),
+        BlipTVUserIE(),
+        BlipTVIE(),
+        VimeoIE(),
+        MyVideoIE(),
+        ComedyCentralIE(),
+        EscapistIE(),
+        CollegeHumorIE(),
+        XVideosIE(),
+        SoundcloudIE(),
+        InfoQIE(),
+        MixcloudIE(),
+        StanfordOpenClassroomIE(),
+        MTVIE(),
+        YoukuIE(),
+        XNXXIE(),
+        GooglePlusIE(),
+        ArteTvIE(),
+        GenericIE()
+    ]
 
 def _real_main():
-	parser, opts, args = parseOpts()
-
-	# Open appropriate CookieJar
-	if opts.cookiefile is None:
-		jar = compat_cookiejar.CookieJar()
-	else:
-		try:
-			jar = compat_cookiejar.MozillaCookieJar(opts.cookiefile)
-			if os.path.isfile(opts.cookiefile) and os.access(opts.cookiefile, os.R_OK):
-				jar.load()
-		except (IOError, OSError) as err:
-			sys.exit(u'ERROR: unable to open cookie file')
-	# Set user agent
-	if opts.user_agent is not None:
-		std_headers['User-Agent'] = opts.user_agent
-
-	# Dump user agent
-	if opts.dump_user_agent:
-		print(std_headers['User-Agent'])
-		sys.exit(0)
-
-	# Batch file verification
-	batchurls = []
-	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)]
-		except IOError:
-			sys.exit(u'ERROR: batch file could not be read')
-	all_urls = batchurls + args
-	all_urls = [url.strip() for url in all_urls]
-
-	# General configuration
-	cookie_processor = compat_urllib_request.HTTPCookieProcessor(jar)
-	proxy_handler = compat_urllib_request.ProxyHandler()
-	opener = compat_urllib_request.build_opener(proxy_handler, cookie_processor, YoutubeDLHandler())
-	compat_urllib_request.install_opener(opener)
-	socket.setdefaulttimeout(300) # 5 minutes should be enough (famous last words)
-
-	extractors = gen_extractors()
-
-	if opts.list_extractors:
-		for ie in extractors:
-			print(ie.IE_NAME)
-			matchedUrls = filter(lambda url: ie.suitable(url), all_urls)
-			all_urls = filter(lambda url: url not in matchedUrls, all_urls)
-			for mu in matchedUrls:
-				print(u'  ' + mu)
-		sys.exit(0)
-
-	# 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')
-	if opts.password is not None and opts.username is None:
-		parser.error(u'account username missing')
-	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')
-	if opts.usetitle and opts.useid:
-		parser.error(u'using title conflicts with using video ID')
-	if opts.username is not None and opts.password is None:
-		opts.password = getpass.getpass(u'Type account password and press return:')
-	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')
-		opts.ratelimit = numeric_limit
-	if opts.retries is not None:
-		try:
-			opts.retries = int(opts.retries)
-		except (TypeError, ValueError) as err:
-			parser.error(u'invalid retry count specified')
-	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')
-		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.extractaudio:
-		if opts.audioformat not in ['best', 'aac', 'mp3', 'vorbis', 'm4a', 'wav']:
-			parser.error(u'invalid audio format specified')
-	if opts.audioquality:
-		opts.audioquality = opts.audioquality.strip('k').strip('K')
-		if not opts.audioquality.isdigit():
-			parser.error(u'invalid audio quality specified')
-
-	# File downloader
-	fd = FileDownloader({
-		'usenetrc': opts.usenetrc,
-		'username': opts.username,
-		'password': opts.password,
-		'quiet': (opts.quiet or opts.geturl or opts.gettitle or opts.getthumbnail or opts.getdescription or opts.getfilename or opts.getformat),
-		'forceurl': opts.geturl,
-		'forcetitle': opts.gettitle,
-		'forcethumbnail': opts.getthumbnail,
-		'forcedescription': opts.getdescription,
-		'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.getthumbnail or opts.getdescription or opts.getfilename or opts.getformat),
-		'format': opts.format,
-		'format_limit': opts.format_limit,
-		'listformats': opts.listformats,
-		'outtmpl': ((opts.outtmpl is not None and opts.outtmpl.decode(preferredencoding()))
-			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'%(id)s.%(ext)s'),
-		'restrictfilenames': opts.restrictfilenames,
-		'ignoreerrors': opts.ignoreerrors,
-		'ratelimit': opts.ratelimit,
-		'nooverwrites': opts.nooverwrites,
-		'retries': opts.retries,
-		'buffersize': opts.buffersize,
-		'noresizebuffer': opts.noresizebuffer,
-		'continuedl': opts.continue_dl,
-		'noprogress': opts.noprogress,
-		'playliststart': opts.playliststart,
-		'playlistend': opts.playlistend,
-		'logtostderr': opts.outtmpl == '-',
-		'consoletitle': opts.consoletitle,
-		'nopart': opts.nopart,
-		'updatetime': opts.updatetime,
-		'writedescription': opts.writedescription,
-		'writeinfojson': opts.writeinfojson,
-		'writesubtitles': opts.writesubtitles,
-		'subtitleslang': opts.subtitleslang,
-		'matchtitle': opts.matchtitle,
-		'rejecttitle': opts.rejecttitle,
-		'max_downloads': opts.max_downloads,
-		'prefer_free_formats': opts.prefer_free_formats,
-		'verbose': opts.verbose,
-		})
-
-	if opts.verbose:
-		fd.to_screen(u'[debug] Proxy map: ' + str(proxy_handler.proxies))
-
-	for extractor in extractors:
-		fd.add_info_extractor(extractor)
-
-	# PostProcessors
-	if opts.extractaudio:
-		fd.add_post_processor(FFmpegExtractAudioPP(preferredcodec=opts.audioformat, preferredquality=opts.audioquality, keepvideo=opts.keepvideo))
-
-	# Update version
-	if opts.update_self:
-		updateSelf(fd, 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()
-
-	try:
-		retcode = fd.download(all_urls)
-	except MaxDownloadsReached:
-		fd.to_screen(u'--max-download limit reached, aborting.')
-		retcode = 101
-
-	# Dump cookie jar if requested
-	if opts.cookiefile is not None:
-		try:
-			jar.save()
-		except (IOError, OSError) as err:
-			sys.exit(u'ERROR: unable to save cookie jar')
-
-	sys.exit(retcode)
+    parser, opts, args = parseOpts()
+
+    # Open appropriate CookieJar
+    if opts.cookiefile is None:
+        jar = compat_cookiejar.CookieJar()
+    else:
+        try:
+            jar = compat_cookiejar.MozillaCookieJar(opts.cookiefile)
+            if os.path.isfile(opts.cookiefile) and os.access(opts.cookiefile, os.R_OK):
+                jar.load()
+        except (IOError, OSError) as err:
+            sys.exit(u'ERROR: unable to open cookie file')
+    # Set user agent
+    if opts.user_agent is not None:
+        std_headers['User-Agent'] = opts.user_agent
+
+    # Dump user agent
+    if opts.dump_user_agent:
+        print(std_headers['User-Agent'])
+        sys.exit(0)
+
+    # Batch file verification
+    batchurls = []
+    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)]
+        except IOError:
+            sys.exit(u'ERROR: batch file could not be read')
+    all_urls = batchurls + args
+    all_urls = [url.strip() for url in all_urls]
+
+    # General configuration
+    cookie_processor = compat_urllib_request.HTTPCookieProcessor(jar)
+    proxy_handler = compat_urllib_request.ProxyHandler()
+    opener = compat_urllib_request.build_opener(proxy_handler, cookie_processor, YoutubeDLHandler())
+    compat_urllib_request.install_opener(opener)
+    socket.setdefaulttimeout(300) # 5 minutes should be enough (famous last words)
+
+    extractors = gen_extractors()
+
+    if opts.list_extractors:
+        for ie in extractors:
+            print(ie.IE_NAME)
+            matchedUrls = filter(lambda url: ie.suitable(url), all_urls)
+            all_urls = filter(lambda url: url not in matchedUrls, all_urls)
+            for mu in matchedUrls:
+                print(u'  ' + mu)
+        sys.exit(0)
+
+    # 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')
+    if opts.password is not None and opts.username is None:
+        parser.error(u'account username missing')
+    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')
+    if opts.usetitle and opts.useid:
+        parser.error(u'using title conflicts with using video ID')
+    if opts.username is not None and opts.password is None:
+        opts.password = getpass.getpass(u'Type account password and press return:')
+    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')
+        opts.ratelimit = numeric_limit
+    if opts.retries is not None:
+        try:
+            opts.retries = int(opts.retries)
+        except (TypeError, ValueError) as err:
+            parser.error(u'invalid retry count specified')
+    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')
+        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.extractaudio:
+        if opts.audioformat not in ['best', 'aac', 'mp3', 'vorbis', 'm4a', 'wav']:
+            parser.error(u'invalid audio format specified')
+    if opts.audioquality:
+        opts.audioquality = opts.audioquality.strip('k').strip('K')
+        if not opts.audioquality.isdigit():
+            parser.error(u'invalid audio quality specified')
+
+    # File downloader
+    fd = FileDownloader({
+        'usenetrc': opts.usenetrc,
+        'username': opts.username,
+        'password': opts.password,
+        'quiet': (opts.quiet or opts.geturl or opts.gettitle or opts.getthumbnail or opts.getdescription or opts.getfilename or opts.getformat),
+        'forceurl': opts.geturl,
+        'forcetitle': opts.gettitle,
+        'forcethumbnail': opts.getthumbnail,
+        'forcedescription': opts.getdescription,
+        '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.getthumbnail or opts.getdescription or opts.getfilename or opts.getformat),
+        'format': opts.format,
+        'format_limit': opts.format_limit,
+        'listformats': opts.listformats,
+        'outtmpl': ((opts.outtmpl is not None and opts.outtmpl.decode(preferredencoding()))
+            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'%(id)s.%(ext)s'),
+        'restrictfilenames': opts.restrictfilenames,
+        'ignoreerrors': opts.ignoreerrors,
+        'ratelimit': opts.ratelimit,
+        'nooverwrites': opts.nooverwrites,
+        'retries': opts.retries,
+        'buffersize': opts.buffersize,
+        'noresizebuffer': opts.noresizebuffer,
+        'continuedl': opts.continue_dl,
+        'noprogress': opts.noprogress,
+        'playliststart': opts.playliststart,
+        'playlistend': opts.playlistend,
+        'logtostderr': opts.outtmpl == '-',
+        'consoletitle': opts.consoletitle,
+        'nopart': opts.nopart,
+        'updatetime': opts.updatetime,
+        'writedescription': opts.writedescription,
+        'writeinfojson': opts.writeinfojson,
+        'writesubtitles': opts.writesubtitles,
+        'subtitleslang': opts.subtitleslang,
+        'matchtitle': opts.matchtitle,
+        'rejecttitle': opts.rejecttitle,
+        'max_downloads': opts.max_downloads,
+        'prefer_free_formats': opts.prefer_free_formats,
+        'verbose': opts.verbose,
+        })
+
+    if opts.verbose:
+        fd.to_screen(u'[debug] Proxy map: ' + str(proxy_handler.proxies))
+
+    for extractor in extractors:
+        fd.add_info_extractor(extractor)
+
+    # PostProcessors
+    if opts.extractaudio:
+        fd.add_post_processor(FFmpegExtractAudioPP(preferredcodec=opts.audioformat, preferredquality=opts.audioquality, keepvideo=opts.keepvideo))
+
+    # Update version
+    if opts.update_self:
+        updateSelf(fd, 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()
+
+    try:
+        retcode = fd.download(all_urls)
+    except MaxDownloadsReached:
+        fd.to_screen(u'--max-download limit reached, aborting.')
+        retcode = 101
+
+    # Dump cookie jar if requested
+    if opts.cookiefile is not None:
+        try:
+            jar.save()
+        except (IOError, OSError) as err:
+            sys.exit(u'ERROR: unable to save cookie jar')
+
+    sys.exit(retcode)
 
 def main():
-	try:
-		_real_main()
-	except DownloadError:
-		sys.exit(1)
-	except SameFileError:
-		sys.exit(u'ERROR: fixed output name but more than one file to download')
-	except KeyboardInterrupt:
-		sys.exit(u'\nERROR: Interrupted by user')
+    try:
+        _real_main()
+    except DownloadError:
+        sys.exit(1)
+    except SameFileError:
+        sys.exit(u'ERROR: fixed output name but more than one file to download')
+    except KeyboardInterrupt:
+        sys.exit(u'\nERROR: Interrupted by user')