debian/README.source: Update my own instructions.

[youtubedl] / youtube_dl / InfoExtractors.py

diff --git a/youtube_dl/InfoExtractors.py b/youtube_dl/InfoExtractors.py
index 8dd1c0b0727ff3bcb6001a460aa7b892f529d586..5ebe64b6e9de0a342d83477834809ad477fc41f0 100644 (file)
--- a/youtube_dl/InfoExtractors.py
+++ b/youtube_dl/InfoExtractors.py
@@ -1,2957 +1,3568 @@
 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
 

+from __future__ import absolute_import
+

 import datetime
 import datetime

-import HTMLParser
-import httplib

 import netrc
 import os
 import re
 import socket
 import time
 import netrc
 import os
 import re
 import socket
 import time

-import urllib
-import urllib2

 import email.utils
 import xml.etree.ElementTree
 import email.utils
 import xml.etree.ElementTree

-from urlparse import parse_qs
-
-try:
-       import cStringIO as StringIO
-except ImportError:
-       import StringIO
+import random
+import math

 
 

-from utils import *
+from .utils import *

 
 
 class InfoExtractor(object):
 
 
 class InfoExtractor(object):

-       """Information Extractor class.
-
-       Information extractors are the classes that, given a URL, extract
-       information from the video (or videos) the URL refers to. This
-       information includes the real video URL, the video title and simplified
-       title, author and others. The information is stored in a dictionary
-       which is then passed to the FileDownloader. The FileDownloader
-       processes this information possibly downloading the video to the file
-       system, among other possible outcomes. The dictionaries must include
-       the following fields:
-
-       id:             Video identifier.
-       url:            Final video URL.
-       uploader:       Nickname of the video uploader.
-       title:          Literal title.
-       ext:            Video filename extension.
-       format:         Video format.
-       player_url:     SWF Player URL (may be None).
-
-       The following fields are optional. Their primary purpose is to allow
-       youtube-dl to serve as the backend for a video search function, such
-       as the one in youtube2mp3.  They are only used when their respective
-       forced printing functions are called:
-
-       thumbnail:      Full URL to a video thumbnail image.
-       description:    One-line video description.
-
-       Subclasses of this one should re-define the _real_initialize() and
-       _real_extract() methods and define a _VALID_URL regexp.
-       Probably, they should also be added to the list of extractors.
-       """
-
-       _ready = False
-       _downloader = None
-
-       def __init__(self, downloader=None):
-               """Constructor. Receives an optional downloader."""
-               self._ready = False
-               self.set_downloader(downloader)
-
-       def suitable(self, url):
-               """Receives a URL and returns True if suitable for this IE."""
-               return re.match(self._VALID_URL, url) is not None
-
-       def initialize(self):
-               """Initializes an instance (authentication, etc)."""
-               if not self._ready:
-                       self._real_initialize()
-                       self._ready = True
-
-       def extract(self, url):
-               """Extracts URL information and returns it in list of dicts."""
-               self.initialize()
-               return self._real_extract(url)
-
-       def set_downloader(self, downloader):
-               """Sets the downloader for this IE."""
-               self._downloader = downloader
-
-       def _real_initialize(self):
-               """Real initialization process. Redefine in subclasses."""
-               pass
-
-       def _real_extract(self, url):
-               """Real extraction process. Redefine in subclasses."""
-               pass
+    """Information Extractor class.
+
+    Information extractors are the classes that, given a URL, extract
+    information about the video (or videos) the URL refers to. This
+    information includes the real video URL, the video title, author and
+    others. The information is stored in a dictionary which is then 
+    passed to the FileDownloader. The FileDownloader processes this
+    information possibly downloading the video to the file system, among
+    other possible outcomes.
+
+    The dictionaries must include the following fields:
+
+    id:             Video identifier.
+    url:            Final video URL.
+    uploader:       Nickname of the video uploader, unescaped.
+    upload_date:    Video upload date (YYYYMMDD).
+    title:          Video title, unescaped.
+    ext:            Video filename extension.
+
+    The following fields are optional:
+
+    format:         The video format, defaults to ext (used for --get-format)
+    thumbnail:      Full URL to a video thumbnail image.
+    description:    One-line video description.
+    player_url:     SWF Player URL (used for rtmpdump).
+    subtitles:      The .srt file contents.
+    urlhandle:      [internal] The urlHandle to be used to download the file,
+                    like returned by urllib.request.urlopen
+
+    The fields should all be Unicode strings.
+
+    Subclasses of this one should re-define the _real_initialize() and
+    _real_extract() methods and define a _VALID_URL regexp.
+    Probably, they should also be added to the list of extractors.
+
+    _real_extract() must return a *list* of information dictionaries as
+    described above.
+
+    Finally, the _WORKING attribute should be set to False for broken IEs
+    in order to warn the users and skip the tests.
+    """
+
+    _ready = False
+    _downloader = None
+    _WORKING = True
+
+    def __init__(self, downloader=None):
+        """Constructor. Receives an optional downloader."""
+        self._ready = False
+        self.set_downloader(downloader)
+
+    def suitable(self, url):
+        """Receives a URL and returns True if suitable for this IE."""
+        return re.match(self._VALID_URL, url) is not None
+
+    def working(self):
+        """Getter method for _WORKING."""
+        return self._WORKING
+
+    def initialize(self):
+        """Initializes an instance (authentication, etc)."""
+        if not self._ready:
+            self._real_initialize()
+            self._ready = True
+
+    def extract(self, url):
+        """Extracts URL information and returns it in list of dicts."""
+        self.initialize()
+        return self._real_extract(url)
+
+    def set_downloader(self, downloader):
+        """Sets the downloader for this IE."""
+        self._downloader = downloader
+
+    def _real_initialize(self):
+        """Real initialization process. Redefine in subclasses."""
+        pass
+
+    def _real_extract(self, url):
+        """Real extraction process. Redefine in subclasses."""
+        pass

 
 
 class YoutubeIE(InfoExtractor):
 
 
 class YoutubeIE(InfoExtractor):

-       """Information extractor for youtube.com."""
-
-       _VALID_URL = r'^((?:https?://)?(?:youtu\.be/|(?:\w+\.)?youtube(?:-nocookie)?\.com/|tube.majestyc.net/)(?!view_play_list|my_playlists|artist|playlist)(?:(?:(?:v|embed|e)/)|(?:(?:watch(?:_popup)?(?:\.php)?)?(?:\?|#!?)(?:.+&)?v=))?)?([0-9A-Za-z_-]+)(?(1).+)?$'
-       _LANG_URL = r'http://www.youtube.com/?hl=en&persist_hl=1&gl=US&persist_gl=1&opt_out_ackd=1'
-       _LOGIN_URL = 'https://www.youtube.com/signup?next=/&gl=US&hl=en'
-       _AGE_URL = 'http://www.youtube.com/verify_age?next_url=/&gl=US&hl=en'
-       _NEXT_URL_RE = r'[\?&]next_url=([^&]+)'
-       _NETRC_MACHINE = 'youtube'
-       # Listed in order of quality
-       _available_formats = ['38', '37', '46', '22', '45', '35', '44', '34', '18', '43', '6', '5', '17', '13']
-       _available_formats_prefer_free = ['38', '46', '37', '45', '22', '44', '35', '43', '34', '18', '6', '5', '17', '13']
-       _video_extensions = {
-               '13': '3gp',
-               '17': 'mp4',
-               '18': 'mp4',
-               '22': 'mp4',
-               '37': 'mp4',
-               '38': 'video', # You actually don't know if this will be MOV, AVI or whatever
-               '43': 'webm',
-               '44': 'webm',
-               '45': 'webm',
-               '46': 'webm',
-       }
-       _video_dimensions = {
-               '5': '240x400',
-               '6': '???',
-               '13': '???',
-               '17': '144x176',
-               '18': '360x640',
-               '22': '720x1280',
-               '34': '360x640',
-               '35': '480x854',
-               '37': '1080x1920',
-               '38': '3072x4096',
-               '43': '360x640',
-               '44': '480x854',
-               '45': '720x1280',
-               '46': '1080x1920',
-       }       
-       IE_NAME = u'youtube'
-
-       def report_lang(self):
-               """Report attempt to set language."""
-               self._downloader.to_screen(u'[youtube] Setting language')
-
-       def report_login(self):
-               """Report attempt to log in."""
-               self._downloader.to_screen(u'[youtube] Logging in')
-
-       def report_age_confirmation(self):
-               """Report attempt to confirm age."""
-               self._downloader.to_screen(u'[youtube] Confirming age')
-
-       def report_video_webpage_download(self, video_id):
-               """Report attempt to download video webpage."""
-               self._downloader.to_screen(u'[youtube] %s: Downloading video webpage' % video_id)
-
-       def report_video_info_webpage_download(self, video_id):
-               """Report attempt to download video info webpage."""
-               self._downloader.to_screen(u'[youtube] %s: Downloading video info webpage' % video_id)
-
-       def report_video_subtitles_download(self, video_id):
-               """Report attempt to download video info webpage."""
-               self._downloader.to_screen(u'[youtube] %s: Downloading video subtitles' % video_id)
-
-       def report_information_extraction(self, video_id):
-               """Report attempt to extract video information."""
-               self._downloader.to_screen(u'[youtube] %s: Extracting video information' % video_id)
-
-       def report_unavailable_format(self, video_id, format):
-               """Report extracted video URL."""
-               self._downloader.to_screen(u'[youtube] %s: Format %s not available' % (video_id, format))
-
-       def report_rtmp_download(self):
-               """Indicate the download will use the RTMP protocol."""
-               self._downloader.to_screen(u'[youtube] RTMP download detected')
-
-       def _closed_captions_xml_to_srt(self, xml_string):
-               srt = ''
-               texts = re.findall(r'<text start="([\d\.]+)"( dur="([\d\.]+)")?>([^<]+)</text>', xml_string, re.MULTILINE)
-               # TODO parse xml instead of regex
-               for n, (start, dur_tag, dur, caption) in enumerate(texts):
-                       if not dur: dur = '4'
-                       start = float(start)
-                       end = start + float(dur)
-                       start = "%02i:%02i:%02i,%03i" %(start/(60*60), start/60%60, start%60, start%1*1000)
-                       end = "%02i:%02i:%02i,%03i" %(end/(60*60), end/60%60, end%60, end%1*1000)
-                       caption = unescapeHTML(caption)
-                       caption = unescapeHTML(caption) # double cycle, intentional
-                       srt += str(n+1) + '\n'
-                       srt += start + ' --> ' + end + '\n'
-                       srt += caption + '\n\n'
-               return srt
-
-       def _print_formats(self, formats):
-               print 'Available formats:'
-               for x in formats:
-                       print '%s\t:\t%s\t[%s]' %(x, self._video_extensions.get(x, 'flv'), self._video_dimensions.get(x, '???'))
-
-       def _real_initialize(self):
-               if self._downloader is None:
-                       return
-
-               username = None
-               password = None
-               downloader_params = self._downloader.params
-
-               # Attempt to use provided username and password or .netrc data
-               if downloader_params.get('username', None) is not None:
-                       username = downloader_params['username']
-                       password = downloader_params['password']
-               elif downloader_params.get('usenetrc', False):
-                       try:
-                               info = netrc.netrc().authenticators(self._NETRC_MACHINE)
-                               if info is not None:
-                                       username = info[0]
-                                       password = info[2]
-                               else:
-                                       raise netrc.NetrcParseError('No authenticators for %s' % self._NETRC_MACHINE)
-                       except (IOError, netrc.NetrcParseError), err:
-                               self._downloader.to_stderr(u'WARNING: parsing .netrc: %s' % str(err))
-                               return
-
-               # Set language
-               request = urllib2.Request(self._LANG_URL)
-               try:
-                       self.report_lang()
-                       urllib2.urlopen(request).read()
-               except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-                       self._downloader.to_stderr(u'WARNING: unable to set language: %s' % str(err))
-                       return
-
-               # No authentication to be performed
-               if username is None:
-                       return
-
-               # Log in
-               login_form = {
-                               'current_form': 'loginForm',
-                               'next':         '/',
-                               'action_login': 'Log In',
-                               'username':     username,
-                               'password':     password,
-                               }
-               request = urllib2.Request(self._LOGIN_URL, urllib.urlencode(login_form))
-               try:
-                       self.report_login()
-                       login_results = urllib2.urlopen(request).read()
-                       if re.search(r'(?i)<form[^>]* name="loginForm"', login_results) is not None:
-                               self._downloader.to_stderr(u'WARNING: unable to log in: bad username or password')
-                               return
-               except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-                       self._downloader.to_stderr(u'WARNING: unable to log in: %s' % str(err))
-                       return
-
-               # Confirm age
-               age_form = {
-                               'next_url':             '/',
-                               'action_confirm':       'Confirm',
-                               }
-               request = urllib2.Request(self._AGE_URL, urllib.urlencode(age_form))
-               try:
-                       self.report_age_confirmation()
-                       age_results = urllib2.urlopen(request).read()
-               except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-                       self._downloader.trouble(u'ERROR: unable to confirm age: %s' % str(err))
-                       return
-
-       def _real_extract(self, url):
-               # Extract original video URL from URL with redirection, like age verification, using next_url parameter
-               mobj = re.search(self._NEXT_URL_RE, url)
-               if mobj:
-                       url = 'http://www.youtube.com/' + urllib.unquote(mobj.group(1)).lstrip('/')
-
-               # Extract video id from URL
-               mobj = re.match(self._VALID_URL, url)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
-                       return
-               video_id = mobj.group(2)
-
-               # Get video webpage
-               self.report_video_webpage_download(video_id)
-               request = urllib2.Request('http://www.youtube.com/watch?v=%s&gl=US&hl=en&has_verified=1' % video_id)
-               try:
-                       video_webpage = urllib2.urlopen(request).read()
-               except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-                       self._downloader.trouble(u'ERROR: unable to download video webpage: %s' % str(err))
-                       return
-
-               # Attempt to extract SWF player URL
-               mobj = re.search(r'swfConfig.*?"(http:\\/\\/.*?watch.*?-.*?\.swf)"', video_webpage)
-               if mobj is not None:
-                       player_url = re.sub(r'\\(.)', r'\1', mobj.group(1))
-               else:
-                       player_url = None
-
-               # Get video info
-               self.report_video_info_webpage_download(video_id)
-               for el_type in ['&el=embedded', '&el=detailpage', '&el=vevo', '']:
-                       video_info_url = ('http://www.youtube.com/get_video_info?&video_id=%s%s&ps=default&eurl=&gl=US&hl=en'
-                                       % (video_id, el_type))
-                       request = urllib2.Request(video_info_url)
-                       try:
-                               video_info_webpage = urllib2.urlopen(request).read()
-                               video_info = parse_qs(video_info_webpage)
-                               if 'token' in video_info:
-                                       break
-                       except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-                               self._downloader.trouble(u'ERROR: unable to download video info webpage: %s' % str(err))
-                               return
-               if 'token' not in video_info:
-                       if 'reason' in video_info:
-                               self._downloader.trouble(u'ERROR: YouTube said: %s' % video_info['reason'][0].decode('utf-8'))
-                       else:
-                               self._downloader.trouble(u'ERROR: "token" parameter not in video info for unknown reason')
-                       return
-
-               # Check for "rental" videos
-               if 'ypc_video_rental_bar_text' in video_info and 'author' not in video_info:
-                       self._downloader.trouble(u'ERROR: "rental" videos not supported')
-                       return
-
-               # Start extracting information
-               self.report_information_extraction(video_id)
-
-               # uploader
-               if 'author' not in video_info:
-                       self._downloader.trouble(u'ERROR: unable to extract uploader nickname')
-                       return
-               video_uploader = urllib.unquote_plus(video_info['author'][0])
-
-               # title
-               if 'title' not in video_info:
-                       self._downloader.trouble(u'ERROR: unable to extract video title')
-                       return
-               video_title = urllib.unquote_plus(video_info['title'][0])
-               video_title = video_title.decode('utf-8')
-
-               # thumbnail image
-               if 'thumbnail_url' not in video_info:
-                       self._downloader.trouble(u'WARNING: unable to extract video thumbnail')
-                       video_thumbnail = ''
-               else:   # don't panic if we can't find it
-                       video_thumbnail = urllib.unquote_plus(video_info['thumbnail_url'][0])
-
-               # upload date
-               upload_date = u'NA'
-               mobj = re.search(r'id="eow-date.*?>(.*?)</span>', video_webpage, re.DOTALL)
-               if mobj is not None:
-                       upload_date = ' '.join(re.sub(r'[/,-]', r' ', mobj.group(1)).split())
-                       format_expressions = ['%d %B %Y', '%B %d %Y', '%b %d %Y']
-                       for expression in format_expressions:
-                               try:
-                                       upload_date = datetime.datetime.strptime(upload_date, expression).strftime('%Y%m%d')
-                               except:
-                                       pass
-
-               # description
-               video_description = get_element_by_id("eow-description", video_webpage.decode('utf8'))
-               if video_description: video_description = clean_html(video_description)
-               else: video_description = ''
-                       
-               # closed captions
-               video_subtitles = None
-               if self._downloader.params.get('writesubtitles', False):
-                       try:
-                               self.report_video_subtitles_download(video_id)
-                               request = urllib2.Request('http://video.google.com/timedtext?hl=en&type=list&v=%s' % video_id)
-                               try:
-                                       srt_list = urllib2.urlopen(request).read()
-                               except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-                                       raise Trouble(u'WARNING: unable to download video subtitles: %s' % str(err))
-                               srt_lang_list = re.findall(r'name="([^"]*)"[^>]+lang_code="([\w\-]+)"', srt_list)
-                               srt_lang_list = dict((l[1], l[0]) for l in srt_lang_list)
-                               if not srt_lang_list:
-                                       raise Trouble(u'WARNING: video has no closed captions')
-                               if self._downloader.params.get('subtitleslang', False):
-                                       srt_lang = self._downloader.params.get('subtitleslang')
-                               elif 'en' in srt_lang_list:
-                                       srt_lang = 'en'
-                               else:
-                                       srt_lang = srt_lang_list.keys()[0]
-                               if not srt_lang in srt_lang_list:
-                                       raise Trouble(u'WARNING: no closed captions found in the specified language')
-                               request = urllib2.Request('http://www.youtube.com/api/timedtext?lang=%s&name=%s&v=%s' % (srt_lang, srt_lang_list[srt_lang], video_id))
-                               try:
-                                       srt_xml = urllib2.urlopen(request).read()
-                               except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-                                       raise Trouble(u'WARNING: unable to download video subtitles: %s' % str(err))
-                               if not srt_xml:
-                                       raise Trouble(u'WARNING: unable to download video subtitles')
-                               video_subtitles = self._closed_captions_xml_to_srt(srt_xml.decode('utf-8'))
-                       except Trouble as trouble:
-                               self._downloader.trouble(trouble[0])
-
-               # token
-               video_token = urllib.unquote_plus(video_info['token'][0])
-
-               # Decide which formats to download
-               req_format = self._downloader.params.get('format', None)
-
-               if 'conn' in video_info and video_info['conn'][0].startswith('rtmp'):
-                       self.report_rtmp_download()
-                       video_url_list = [(None, video_info['conn'][0])]
-               elif 'url_encoded_fmt_stream_map' in video_info and len(video_info['url_encoded_fmt_stream_map']) >= 1:
-                       url_data_strs = video_info['url_encoded_fmt_stream_map'][0].split(',')
-                       url_data = [parse_qs(uds) for uds in url_data_strs]
-                       url_data = filter(lambda ud: 'itag' in ud and 'url' in ud, url_data)
-                       url_map = dict((ud['itag'][0], ud['url'][0] + '&signature=' + ud['sig'][0]) for ud in url_data)
-
-                       format_limit = self._downloader.params.get('format_limit', None)
-                       available_formats = self._available_formats_prefer_free if self._downloader.params.get('prefer_free_formats', False) else self._available_formats
-                       if format_limit is not None and format_limit in available_formats:
-                               format_list = available_formats[available_formats.index(format_limit):]
-                       else:
-                               format_list = available_formats
-                       existing_formats = [x for x in format_list if x in url_map]
-                       if len(existing_formats) == 0:
-                               self._downloader.trouble(u'ERROR: no known formats available for video')
-                               return
-                       if self._downloader.params.get('listformats', None):
-                               self._print_formats(existing_formats)
-                               return
-                       if req_format is None or req_format == 'best':
-                               video_url_list = [(existing_formats[0], url_map[existing_formats[0]])] # Best quality
-                       elif req_format == 'worst':
-                               video_url_list = [(existing_formats[len(existing_formats)-1], url_map[existing_formats[len(existing_formats)-1]])] # worst quality
-                       elif req_format in ('-1', 'all'):
-                               video_url_list = [(f, url_map[f]) for f in existing_formats] # All formats
-                       else:
-                               # Specific formats. We pick the first in a slash-delimeted sequence.
-                               # For example, if '1/2/3/4' is requested and '2' and '4' are available, we pick '2'.
-                               req_formats = req_format.split('/')
-                               video_url_list = None
-                               for rf in req_formats:
-                                       if rf in url_map:
-                                               video_url_list = [(rf, url_map[rf])]
-                                               break
-                               if video_url_list is None:
-                                       self._downloader.trouble(u'ERROR: requested format not available')
-                                       return
-               else:
-                       self._downloader.trouble(u'ERROR: no conn or url_encoded_fmt_stream_map information found in video info')
-                       return
-
-               results = []
-               for format_param, video_real_url in video_url_list:
-                       # Extension
-                       video_extension = self._video_extensions.get(format_param, 'flv')
-
-                       results.append({
-                               'id':           video_id.decode('utf-8'),
-                               'url':          video_real_url.decode('utf-8'),
-                               'uploader':     video_uploader.decode('utf-8'),
-                               'upload_date':  upload_date,
-                               'title':        video_title,
-                               'ext':          video_extension.decode('utf-8'),
-                               'format':       (format_param is None and u'NA' or format_param.decode('utf-8')),
-                               'thumbnail':    video_thumbnail.decode('utf-8'),
-                               'description':  video_description,
-                               'player_url':   player_url,
-                               'subtitles':    video_subtitles
-                       })
-               return results
+    """Information extractor for youtube.com."""
+
+    _VALID_URL = r"""^
+                     (
+                         (?:https?://)?                                       # http(s):// (optional)
+                         (?:youtu\.be/|(?:\w+\.)?youtube(?:-nocookie)?\.com/|
+                            tube\.majestyc\.net/)                             # the various hostnames, with wildcard subdomains
+                         (?:.*?\#/)?                                          # handle anchor (#/) redirect urls
+                         (?!view_play_list|my_playlists|artist|playlist)      # ignore playlist URLs
+                         (?:                                                  # the various things that can precede the ID:
+                             (?:(?:v|embed|e)/)                               # v/ or embed/ or e/
+                             |(?:                                             # or the v= param in all its forms
+                                 (?:watch(?:_popup)?(?:\.php)?)?              # preceding watch(_popup|.php) or nothing (like /?v=xxxx)
+                                 (?:\?|\#!?)                                  # the params delimiter ? or # or #!
+                                 (?:.+&)?                                     # any other preceding param (like /?s=tuff&v=xxxx)
+                                 v=
+                             )
+                         )?                                                   # optional -> youtube.com/xxxx is OK
+                     )?                                                       # all until now is optional -> you can pass the naked ID
+                     ([0-9A-Za-z_-]+)                                         # here is it! the YouTube video ID
+                     (?(1).+)?                                                # if we found the ID, everything can follow
+                     $"""
+    _LANG_URL = r'http://www.youtube.com/?hl=en&persist_hl=1&gl=US&persist_gl=1&opt_out_ackd=1'
+    _LOGIN_URL = 'https://www.youtube.com/signup?next=/&gl=US&hl=en'
+    _AGE_URL = 'http://www.youtube.com/verify_age?next_url=/&gl=US&hl=en'
+    _NEXT_URL_RE = r'[\?&]next_url=([^&]+)'
+    _NETRC_MACHINE = 'youtube'
+    # Listed in order of quality
+    _available_formats = ['38', '37', '46', '22', '45', '35', '44', '34', '18', '43', '6', '5', '17', '13']
+    _available_formats_prefer_free = ['38', '46', '37', '45', '22', '44', '35', '43', '34', '18', '6', '5', '17', '13']
+    _video_extensions = {
+        '13': '3gp',
+        '17': 'mp4',
+        '18': 'mp4',
+        '22': 'mp4',
+        '37': 'mp4',
+        '38': 'video', # You actually don't know if this will be MOV, AVI or whatever
+        '43': 'webm',
+        '44': 'webm',
+        '45': 'webm',
+        '46': 'webm',
+    }
+    _video_dimensions = {
+        '5': '240x400',
+        '6': '???',
+        '13': '???',
+        '17': '144x176',
+        '18': '360x640',
+        '22': '720x1280',
+        '34': '360x640',
+        '35': '480x854',
+        '37': '1080x1920',
+        '38': '3072x4096',
+        '43': '360x640',
+        '44': '480x854',
+        '45': '720x1280',
+        '46': '1080x1920',
+    }   
+    IE_NAME = u'youtube'
+
+    def suitable(self, url):
+        """Receives a URL and returns True if suitable for this IE."""
+        return re.match(self._VALID_URL, url, re.VERBOSE) is not None
+
+    def report_lang(self):
+        """Report attempt to set language."""
+        self._downloader.to_screen(u'[youtube] Setting language')
+
+    def report_login(self):
+        """Report attempt to log in."""
+        self._downloader.to_screen(u'[youtube] Logging in')
+
+    def report_age_confirmation(self):
+        """Report attempt to confirm age."""
+        self._downloader.to_screen(u'[youtube] Confirming age')
+
+    def report_video_webpage_download(self, video_id):
+        """Report attempt to download video webpage."""
+        self._downloader.to_screen(u'[youtube] %s: Downloading video webpage' % video_id)
+
+    def report_video_info_webpage_download(self, video_id):
+        """Report attempt to download video info webpage."""
+        self._downloader.to_screen(u'[youtube] %s: Downloading video info webpage' % video_id)
+
+    def report_video_subtitles_download(self, video_id):
+        """Report attempt to download video info webpage."""
+        self._downloader.to_screen(u'[youtube] %s: Downloading video subtitles' % video_id)
+
+    def report_information_extraction(self, video_id):
+        """Report attempt to extract video information."""
+        self._downloader.to_screen(u'[youtube] %s: Extracting video information' % video_id)
+
+    def report_unavailable_format(self, video_id, format):
+        """Report extracted video URL."""
+        self._downloader.to_screen(u'[youtube] %s: Format %s not available' % (video_id, format))
+
+    def report_rtmp_download(self):
+        """Indicate the download will use the RTMP protocol."""
+        self._downloader.to_screen(u'[youtube] RTMP download detected')
+
+    def _closed_captions_xml_to_srt(self, xml_string):
+        srt = ''
+        texts = re.findall(r'<text start="([\d\.]+)"( dur="([\d\.]+)")?>([^<]+)</text>', xml_string, re.MULTILINE)
+        # TODO parse xml instead of regex
+        for n, (start, dur_tag, dur, caption) in enumerate(texts):
+            if not dur: dur = '4'
+            start = float(start)
+            end = start + float(dur)
+            start = "%02i:%02i:%02i,%03i" %(start/(60*60), start/60%60, start%60, start%1*1000)
+            end = "%02i:%02i:%02i,%03i" %(end/(60*60), end/60%60, end%60, end%1*1000)
+            caption = unescapeHTML(caption)
+            caption = unescapeHTML(caption) # double cycle, intentional
+            srt += str(n+1) + '\n'
+            srt += start + ' --> ' + end + '\n'
+            srt += caption + '\n\n'
+        return srt
+
+    def _print_formats(self, formats):
+        print('Available formats:')
+        for x in formats:
+            print('%s\t:\t%s\t[%s]' %(x, self._video_extensions.get(x, 'flv'), self._video_dimensions.get(x, '???')))
+
+    def _real_initialize(self):
+        if self._downloader is None:
+            return
+
+        username = None
+        password = None
+        downloader_params = self._downloader.params
+
+        # Attempt to use provided username and password or .netrc data
+        if downloader_params.get('username', None) is not None:
+            username = downloader_params['username']
+            password = downloader_params['password']
+        elif downloader_params.get('usenetrc', False):
+            try:
+                info = netrc.netrc().authenticators(self._NETRC_MACHINE)
+                if info is not None:
+                    username = info[0]
+                    password = info[2]
+                else:
+                    raise netrc.NetrcParseError('No authenticators for %s' % self._NETRC_MACHINE)
+            except (IOError, netrc.NetrcParseError) as err:
+                self._downloader.to_stderr(u'WARNING: parsing .netrc: %s' % compat_str(err))
+                return
+
+        # Set language
+        request = compat_urllib_request.Request(self._LANG_URL)
+        try:
+            self.report_lang()
+            compat_urllib_request.urlopen(request).read()
+        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+            self._downloader.to_stderr(u'WARNING: unable to set language: %s' % compat_str(err))
+            return
+
+        # No authentication to be performed
+        if username is None:
+            return
+
+        # Log in
+        login_form = {
+                'current_form': 'loginForm',
+                'next':     '/',
+                'action_login': 'Log In',
+                'username': username,
+                'password': password,
+                }
+        request = compat_urllib_request.Request(self._LOGIN_URL, compat_urllib_parse.urlencode(login_form))
+        try:
+            self.report_login()
+            login_results = compat_urllib_request.urlopen(request).read()
+            if re.search(r'(?i)<form[^>]* name="loginForm"', login_results) is not None:
+                self._downloader.to_stderr(u'WARNING: unable to log in: bad username or password')
+                return
+        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+            self._downloader.to_stderr(u'WARNING: unable to log in: %s' % compat_str(err))
+            return
+
+        # Confirm age
+        age_form = {
+                'next_url':     '/',
+                'action_confirm':   'Confirm',
+                }
+        request = compat_urllib_request.Request(self._AGE_URL, compat_urllib_parse.urlencode(age_form))
+        try:
+            self.report_age_confirmation()
+            age_results = compat_urllib_request.urlopen(request).read()
+        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+            self._downloader.trouble(u'ERROR: unable to confirm age: %s' % compat_str(err))
+            return
+
+    def _real_extract(self, url):
+        # Extract original video URL from URL with redirection, like age verification, using next_url parameter
+        mobj = re.search(self._NEXT_URL_RE, url)
+        if mobj:
+            url = 'http://www.youtube.com/' + compat_urllib_parse.unquote(mobj.group(1)).lstrip('/')
+
+        # Extract video id from URL
+        mobj = re.match(self._VALID_URL, url, re.VERBOSE)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
+            return
+        video_id = mobj.group(2)
+
+        # Get video webpage
+        self.report_video_webpage_download(video_id)
+        request = compat_urllib_request.Request('http://www.youtube.com/watch?v=%s&gl=US&hl=en&has_verified=1' % video_id)
+        try:
+            video_webpage_bytes = compat_urllib_request.urlopen(request).read()
+        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+            self._downloader.trouble(u'ERROR: unable to download video webpage: %s' % compat_str(err))
+            return
+
+        video_webpage = video_webpage_bytes.decode('utf-8', 'ignore')
+
+        # Attempt to extract SWF player URL
+        mobj = re.search(r'swfConfig.*?"(http:\\/\\/.*?watch.*?-.*?\.swf)"', video_webpage)
+        if mobj is not None:
+            player_url = re.sub(r'\\(.)', r'\1', mobj.group(1))
+        else:
+            player_url = None
+
+        # Get video info
+        self.report_video_info_webpage_download(video_id)
+        for el_type in ['&el=embedded', '&el=detailpage', '&el=vevo', '']:
+            video_info_url = ('http://www.youtube.com/get_video_info?&video_id=%s%s&ps=default&eurl=&gl=US&hl=en'
+                    % (video_id, el_type))
+            request = compat_urllib_request.Request(video_info_url)
+            try:
+                video_info_webpage_bytes = compat_urllib_request.urlopen(request).read()
+                video_info_webpage = video_info_webpage_bytes.decode('utf-8', 'ignore')
+                video_info = compat_parse_qs(video_info_webpage)
+                if 'token' in video_info:
+                    break
+            except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+                self._downloader.trouble(u'ERROR: unable to download video info webpage: %s' % compat_str(err))
+                return
+        if 'token' not in video_info:
+            if 'reason' in video_info:
+                self._downloader.trouble(u'ERROR: YouTube said: %s' % video_info['reason'][0])
+            else:
+                self._downloader.trouble(u'ERROR: "token" parameter not in video info for unknown reason')
+            return
+
+        # Check for "rental" videos
+        if 'ypc_video_rental_bar_text' in video_info and 'author' not in video_info:
+            self._downloader.trouble(u'ERROR: "rental" videos not supported')
+            return
+
+        # Start extracting information
+        self.report_information_extraction(video_id)
+
+        # uploader
+        if 'author' not in video_info:
+            self._downloader.trouble(u'ERROR: unable to extract uploader nickname')
+            return
+        video_uploader = compat_urllib_parse.unquote_plus(video_info['author'][0])
+
+        # title
+        if 'title' not in video_info:
+            self._downloader.trouble(u'ERROR: unable to extract video title')
+            return
+        video_title = compat_urllib_parse.unquote_plus(video_info['title'][0])
+
+        # thumbnail image
+        if 'thumbnail_url' not in video_info:
+            self._downloader.trouble(u'WARNING: unable to extract video thumbnail')
+            video_thumbnail = ''
+        else:   # don't panic if we can't find it
+            video_thumbnail = compat_urllib_parse.unquote_plus(video_info['thumbnail_url'][0])
+
+        # upload date
+        upload_date = None
+        mobj = re.search(r'id="eow-date.*?>(.*?)</span>', video_webpage, re.DOTALL)
+        if mobj is not None:
+            upload_date = ' '.join(re.sub(r'[/,-]', r' ', mobj.group(1)).split())
+            format_expressions = ['%d %B %Y', '%B %d %Y', '%b %d %Y']
+            for expression in format_expressions:
+                try:
+                    upload_date = datetime.datetime.strptime(upload_date, expression).strftime('%Y%m%d')
+                except:
+                    pass
+
+        # description
+        video_description = get_element_by_id("eow-description", video_webpage)
+        if video_description:
+            video_description = clean_html(video_description)
+        else:
+            video_description = ''
+
+        # closed captions
+        video_subtitles = None
+        if self._downloader.params.get('writesubtitles', False):
+            try:
+                self.report_video_subtitles_download(video_id)
+                request = compat_urllib_request.Request('http://video.google.com/timedtext?hl=en&type=list&v=%s' % video_id)
+                try:
+                    srt_list = compat_urllib_request.urlopen(request).read()
+                except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+                    raise Trouble(u'WARNING: unable to download video subtitles: %s' % compat_str(err))
+                srt_lang_list = re.findall(r'name="([^"]*)"[^>]+lang_code="([\w\-]+)"', srt_list)
+                srt_lang_list = dict((l[1], l[0]) for l in srt_lang_list)
+                if not srt_lang_list:
+                    raise Trouble(u'WARNING: video has no closed captions')
+                if self._downloader.params.get('subtitleslang', False):
+                    srt_lang = self._downloader.params.get('subtitleslang')
+                elif 'en' in srt_lang_list:
+                    srt_lang = 'en'
+                else:
+                    srt_lang = srt_lang_list.keys()[0]
+                if not srt_lang in srt_lang_list:
+                    raise Trouble(u'WARNING: no closed captions found in the specified language')
+                request = compat_urllib_request.Request('http://www.youtube.com/api/timedtext?lang=%s&name=%s&v=%s' % (srt_lang, srt_lang_list[srt_lang], video_id))
+                try:
+                    srt_xml = compat_urllib_request.urlopen(request).read()
+                except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+                    raise Trouble(u'WARNING: unable to download video subtitles: %s' % compat_str(err))
+                if not srt_xml:
+                    raise Trouble(u'WARNING: unable to download video subtitles')
+                video_subtitles = self._closed_captions_xml_to_srt(srt_xml.decode('utf-8'))
+            except Trouble as trouble:
+                self._downloader.trouble(trouble[0])
+
+        if 'length_seconds' not in video_info:
+            self._downloader.trouble(u'WARNING: unable to extract video duration')
+            video_duration = ''
+        else:
+            video_duration = compat_urllib_parse.unquote_plus(video_info['length_seconds'][0])
+
+        # token
+        video_token = compat_urllib_parse.unquote_plus(video_info['token'][0])
+
+        # Decide which formats to download
+        req_format = self._downloader.params.get('format', None)
+
+        if 'conn' in video_info and video_info['conn'][0].startswith('rtmp'):
+            self.report_rtmp_download()
+            video_url_list = [(None, video_info['conn'][0])]
+        elif 'url_encoded_fmt_stream_map' in video_info and len(video_info['url_encoded_fmt_stream_map']) >= 1:
+            url_data_strs = video_info['url_encoded_fmt_stream_map'][0].split(',')
+            url_data = [compat_parse_qs(uds) for uds in url_data_strs]
+            url_data = filter(lambda ud: 'itag' in ud and 'url' in ud, url_data)
+            url_map = dict((ud['itag'][0], ud['url'][0] + '&signature=' + ud['sig'][0]) for ud in url_data)
+
+            format_limit = self._downloader.params.get('format_limit', None)
+            available_formats = self._available_formats_prefer_free if self._downloader.params.get('prefer_free_formats', False) else self._available_formats
+            if format_limit is not None and format_limit in available_formats:
+                format_list = available_formats[available_formats.index(format_limit):]
+            else:
+                format_list = available_formats
+            existing_formats = [x for x in format_list if x in url_map]
+            if len(existing_formats) == 0:
+                self._downloader.trouble(u'ERROR: no known formats available for video')
+                return
+            if self._downloader.params.get('listformats', None):
+                self._print_formats(existing_formats)
+                return
+            if req_format is None or req_format == 'best':
+                video_url_list = [(existing_formats[0], url_map[existing_formats[0]])] # Best quality
+            elif req_format == 'worst':
+                video_url_list = [(existing_formats[len(existing_formats)-1], url_map[existing_formats[len(existing_formats)-1]])] # worst quality
+            elif req_format in ('-1', 'all'):
+                video_url_list = [(f, url_map[f]) for f in existing_formats] # All formats
+            else:
+                # Specific formats. We pick the first in a slash-delimeted sequence.
+                # For example, if '1/2/3/4' is requested and '2' and '4' are available, we pick '2'.
+                req_formats = req_format.split('/')
+                video_url_list = None
+                for rf in req_formats:
+                    if rf in url_map:
+                        video_url_list = [(rf, url_map[rf])]
+                        break
+                if video_url_list is None:
+                    self._downloader.trouble(u'ERROR: requested format not available')
+                    return
+        else:
+            self._downloader.trouble(u'ERROR: no conn or url_encoded_fmt_stream_map information found in video info')
+            return
+
+        results = []
+        for format_param, video_real_url in video_url_list:
+            # Extension
+            video_extension = self._video_extensions.get(format_param, 'flv')
+
+            video_format = '{0} - {1}'.format(format_param if format_param else video_extension,
+                                              self._video_dimensions.get(format_param, '???'))
+
+            results.append({
+                'id':       video_id,
+                'url':      video_real_url,
+                'uploader': video_uploader,
+                'upload_date':  upload_date,
+                'title':    video_title,
+                'ext':      video_extension,
+                'format':   video_format,
+                'thumbnail':    video_thumbnail,
+                'description':  video_description,
+                'player_url':   player_url,
+                'subtitles':    video_subtitles,
+                'duration':     video_duration
+            })
+        return results

 
 
 class MetacafeIE(InfoExtractor):
 
 
 class MetacafeIE(InfoExtractor):

-       """Information Extractor for metacafe.com."""
-
-       _VALID_URL = r'(?:http://)?(?:www\.)?metacafe\.com/watch/([^/]+)/([^/]+)/.*'
-       _DISCLAIMER = 'http://www.metacafe.com/family_filter/'
-       _FILTER_POST = 'http://www.metacafe.com/f/index.php?inputType=filter&controllerGroup=user'
-       IE_NAME = u'metacafe'
-
-       def __init__(self, downloader=None):
-               InfoExtractor.__init__(self, downloader)
-
-       def report_disclaimer(self):
-               """Report disclaimer retrieval."""
-               self._downloader.to_screen(u'[metacafe] Retrieving disclaimer')
-
-       def report_age_confirmation(self):
-               """Report attempt to confirm age."""
-               self._downloader.to_screen(u'[metacafe] Confirming age')
-
-       def report_download_webpage(self, video_id):
-               """Report webpage download."""
-               self._downloader.to_screen(u'[metacafe] %s: Downloading webpage' % video_id)
-
-       def report_extraction(self, video_id):
-               """Report information extraction."""
-               self._downloader.to_screen(u'[metacafe] %s: Extracting information' % video_id)
-
-       def _real_initialize(self):
-               # Retrieve disclaimer
-               request = urllib2.Request(self._DISCLAIMER)
-               try:
-                       self.report_disclaimer()
-                       disclaimer = urllib2.urlopen(request).read()
-               except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-                       self._downloader.trouble(u'ERROR: unable to retrieve disclaimer: %s' % str(err))
-                       return
-
-               # Confirm age
-               disclaimer_form = {
-                       'filters': '0',
-                       'submit': "Continue - I'm over 18",
-                       }
-               request = urllib2.Request(self._FILTER_POST, urllib.urlencode(disclaimer_form))
-               try:
-                       self.report_age_confirmation()
-                       disclaimer = urllib2.urlopen(request).read()
-               except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-                       self._downloader.trouble(u'ERROR: unable to confirm age: %s' % str(err))
-                       return
-
-       def _real_extract(self, url):
-               # Extract id and simplified title from URL
-               mobj = re.match(self._VALID_URL, url)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
-                       return
-
-               video_id = mobj.group(1)
-
-               # Check if video comes from YouTube
-               mobj2 = re.match(r'^yt-(.*)$', video_id)
-               if mobj2 is not None:
-                       self._downloader.download(['http://www.youtube.com/watch?v=%s' % mobj2.group(1)])
-                       return
-
-               # Retrieve video webpage to extract further information
-               request = urllib2.Request('http://www.metacafe.com/watch/%s/' % video_id)
-               try:
-                       self.report_download_webpage(video_id)
-                       webpage = urllib2.urlopen(request).read()
-               except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-                       self._downloader.trouble(u'ERROR: unable retrieve video webpage: %s' % str(err))
-                       return
-
-               # Extract URL, uploader and title from webpage
-               self.report_extraction(video_id)
-               mobj = re.search(r'(?m)&mediaURL=([^&]+)', webpage)
-               if mobj is not None:
-                       mediaURL = urllib.unquote(mobj.group(1))
-                       video_extension = mediaURL[-3:]
-
-                       # Extract gdaKey if available
-                       mobj = re.search(r'(?m)&gdaKey=(.*?)&', webpage)
-                       if mobj is None:
-                               video_url = mediaURL
-                       else:
-                               gdaKey = mobj.group(1)
-                               video_url = '%s?__gda__=%s' % (mediaURL, gdaKey)
-               else:
-                       mobj = re.search(r' name="flashvars" value="(.*?)"', webpage)
-                       if mobj is None:
-                               self._downloader.trouble(u'ERROR: unable to extract media URL')
-                               return
-                       vardict = parse_qs(mobj.group(1))
-                       if 'mediaData' not in vardict:
-                               self._downloader.trouble(u'ERROR: unable to extract media URL')
-                               return
-                       mobj = re.search(r'"mediaURL":"(http.*?)","key":"(.*?)"', vardict['mediaData'][0])
-                       if mobj is None:
-                               self._downloader.trouble(u'ERROR: unable to extract media URL')
-                               return
-                       mediaURL = mobj.group(1).replace('\\/', '/')
-                       video_extension = mediaURL[-3:]
-                       video_url = '%s?__gda__=%s' % (mediaURL, mobj.group(2))
-
-               mobj = re.search(r'(?im)<title>(.*) - Video</title>', webpage)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: unable to extract title')
-                       return
-               video_title = mobj.group(1).decode('utf-8')
-
-               mobj = re.search(r'(?ms)By:\s*<a .*?>(.+?)<', webpage)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: unable to extract uploader nickname')
-                       return
-               video_uploader = mobj.group(1)
-
-               return [{
-                       'id':           video_id.decode('utf-8'),
-                       'url':          video_url.decode('utf-8'),
-                       'uploader':     video_uploader.decode('utf-8'),
-                       'upload_date':  u'NA',
-                       'title':        video_title,
-                       'ext':          video_extension.decode('utf-8'),
-                       'format':       u'NA',
-                       'player_url':   None,
-               }]
+    """Information Extractor for metacafe.com."""
+
+    _VALID_URL = r'(?:http://)?(?:www\.)?metacafe\.com/watch/([^/]+)/([^/]+)/.*'
+    _DISCLAIMER = 'http://www.metacafe.com/family_filter/'
+    _FILTER_POST = 'http://www.metacafe.com/f/index.php?inputType=filter&controllerGroup=user'
+    IE_NAME = u'metacafe'
+
+    def __init__(self, downloader=None):
+        InfoExtractor.__init__(self, downloader)
+
+    def report_disclaimer(self):
+        """Report disclaimer retrieval."""
+        self._downloader.to_screen(u'[metacafe] Retrieving disclaimer')
+
+    def report_age_confirmation(self):
+        """Report attempt to confirm age."""
+        self._downloader.to_screen(u'[metacafe] Confirming age')
+
+    def report_download_webpage(self, video_id):
+        """Report webpage download."""
+        self._downloader.to_screen(u'[metacafe] %s: Downloading webpage' % video_id)
+
+    def report_extraction(self, video_id):
+        """Report information extraction."""
+        self._downloader.to_screen(u'[metacafe] %s: Extracting information' % video_id)
+
+    def _real_initialize(self):
+        # Retrieve disclaimer
+        request = compat_urllib_request.Request(self._DISCLAIMER)
+        try:
+            self.report_disclaimer()
+            disclaimer = compat_urllib_request.urlopen(request).read()
+        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+            self._downloader.trouble(u'ERROR: unable to retrieve disclaimer: %s' % compat_str(err))
+            return
+
+        # Confirm age
+        disclaimer_form = {
+            'filters': '0',
+            'submit': "Continue - I'm over 18",
+            }
+        request = compat_urllib_request.Request(self._FILTER_POST, compat_urllib_parse.urlencode(disclaimer_form))
+        try:
+            self.report_age_confirmation()
+            disclaimer = compat_urllib_request.urlopen(request).read()
+        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+            self._downloader.trouble(u'ERROR: unable to confirm age: %s' % compat_str(err))
+            return
+
+    def _real_extract(self, url):
+        # Extract id and simplified title from URL
+        mobj = re.match(self._VALID_URL, url)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
+            return
+
+        video_id = mobj.group(1)
+
+        # Check if video comes from YouTube
+        mobj2 = re.match(r'^yt-(.*)$', video_id)
+        if mobj2 is not None:
+            self._downloader.download(['http://www.youtube.com/watch?v=%s' % mobj2.group(1)])
+            return
+
+        # Retrieve video webpage to extract further information
+        request = compat_urllib_request.Request('http://www.metacafe.com/watch/%s/' % video_id)
+        try:
+            self.report_download_webpage(video_id)
+            webpage = compat_urllib_request.urlopen(request).read()
+        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+            self._downloader.trouble(u'ERROR: unable retrieve video webpage: %s' % compat_str(err))
+            return
+
+        # Extract URL, uploader and title from webpage
+        self.report_extraction(video_id)
+        mobj = re.search(r'(?m)&mediaURL=([^&]+)', webpage)
+        if mobj is not None:
+            mediaURL = compat_urllib_parse.unquote(mobj.group(1))
+            video_extension = mediaURL[-3:]
+
+            # Extract gdaKey if available
+            mobj = re.search(r'(?m)&gdaKey=(.*?)&', webpage)
+            if mobj is None:
+                video_url = mediaURL
+            else:
+                gdaKey = mobj.group(1)
+                video_url = '%s?__gda__=%s' % (mediaURL, gdaKey)
+        else:
+            mobj = re.search(r' name="flashvars" value="(.*?)"', webpage)
+            if mobj is None:
+                self._downloader.trouble(u'ERROR: unable to extract media URL')
+                return
+            vardict = compat_parse_qs(mobj.group(1))
+            if 'mediaData' not in vardict:
+                self._downloader.trouble(u'ERROR: unable to extract media URL')
+                return
+            mobj = re.search(r'"mediaURL":"(http.*?)","key":"(.*?)"', vardict['mediaData'][0])
+            if mobj is None:
+                self._downloader.trouble(u'ERROR: unable to extract media URL')
+                return
+            mediaURL = mobj.group(1).replace('\\/', '/')
+            video_extension = mediaURL[-3:]
+            video_url = '%s?__gda__=%s' % (mediaURL, mobj.group(2))
+
+        mobj = re.search(r'(?im)<title>(.*) - Video</title>', webpage)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: unable to extract title')
+            return
+        video_title = mobj.group(1).decode('utf-8')
+
+        mobj = re.search(r'submitter=(.*?);', webpage)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: unable to extract uploader nickname')
+            return
+        video_uploader = mobj.group(1)
+
+        return [{
+            'id':       video_id.decode('utf-8'),
+            'url':      video_url.decode('utf-8'),
+            'uploader': video_uploader.decode('utf-8'),
+            'upload_date':  None,
+            'title':    video_title,
+            'ext':      video_extension.decode('utf-8'),
+        }]

 
 
 class DailymotionIE(InfoExtractor):
 
 
 class DailymotionIE(InfoExtractor):

-       """Information Extractor for Dailymotion"""
-
-       _VALID_URL = r'(?i)(?:https?://)?(?:www\.)?dailymotion\.[a-z]{2,3}/video/([^_/]+)_([^/]+)'
-       IE_NAME = u'dailymotion'
-
-       def __init__(self, downloader=None):
-               InfoExtractor.__init__(self, downloader)
-
-       def report_download_webpage(self, video_id):
-               """Report webpage download."""
-               self._downloader.to_screen(u'[dailymotion] %s: Downloading webpage' % video_id)
-
-       def report_extraction(self, video_id):
-               """Report information extraction."""
-               self._downloader.to_screen(u'[dailymotion] %s: Extracting information' % video_id)
-
-       def _real_extract(self, url):
-               # Extract id and simplified title from URL
-               mobj = re.match(self._VALID_URL, url)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
-                       return
-
-               video_id = mobj.group(1)
-
-               video_extension = 'flv'
-
-               # Retrieve video webpage to extract further information
-               request = urllib2.Request(url)
-               request.add_header('Cookie', 'family_filter=off')
-               try:
-                       self.report_download_webpage(video_id)
-                       webpage = urllib2.urlopen(request).read()
-               except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-                       self._downloader.trouble(u'ERROR: unable retrieve video webpage: %s' % str(err))
-                       return
-
-               # Extract URL, uploader and title from webpage
-               self.report_extraction(video_id)
-               mobj = re.search(r'(?i)addVariable\(\"sequence\"\s*,\s*\"([^\"]+?)\"\)', webpage)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: unable to extract media URL')
-                       return
-               sequence = urllib.unquote(mobj.group(1))
-               mobj = re.search(r',\"sdURL\"\:\"([^\"]+?)\",', sequence)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: unable to extract media URL')
-                       return
-               mediaURL = urllib.unquote(mobj.group(1)).replace('\\', '')
-
-               # if needed add http://www.dailymotion.com/ if relative URL
-
-               video_url = mediaURL
-
-               mobj = re.search(r'<meta property="og:title" content="(?P<title>[^"]*)" />', webpage)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: unable to extract title')
-                       return
-               video_title = unescapeHTML(mobj.group('title').decode('utf-8'))
-
-               mobj = re.search(r'(?im)<span class="owner[^\"]+?">[^<]+?<a [^>]+?>([^<]+?)</a></span>', webpage)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: unable to extract uploader nickname')
-                       return
-               video_uploader = mobj.group(1)
-
-               return [{
-                       'id':           video_id.decode('utf-8'),
-                       'url':          video_url.decode('utf-8'),
-                       'uploader':     video_uploader.decode('utf-8'),
-                       'upload_date':  u'NA',
-                       'title':        video_title,
-                       'ext':          video_extension.decode('utf-8'),
-                       'format':       u'NA',
-                       'player_url':   None,
-               }]
+    """Information Extractor for Dailymotion"""
+
+    _VALID_URL = r'(?i)(?:https?://)?(?:www\.)?dailymotion\.[a-z]{2,3}/video/([^/]+)'
+    IE_NAME = u'dailymotion'
+
+    def __init__(self, downloader=None):
+        InfoExtractor.__init__(self, downloader)
+
+    def report_download_webpage(self, video_id):
+        """Report webpage download."""
+        self._downloader.to_screen(u'[dailymotion] %s: Downloading webpage' % video_id)
+
+    def report_extraction(self, video_id):
+        """Report information extraction."""
+        self._downloader.to_screen(u'[dailymotion] %s: Extracting information' % video_id)
+
+    def _real_extract(self, url):
+        # Extract id and simplified title from URL
+        mobj = re.match(self._VALID_URL, url)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
+            return
+
+        video_id = mobj.group(1).split('_')[0].split('?')[0]
+
+        video_extension = 'mp4'
+
+        # Retrieve video webpage to extract further information
+        request = compat_urllib_request.Request(url)
+        request.add_header('Cookie', 'family_filter=off')
+        try:
+            self.report_download_webpage(video_id)
+            webpage = compat_urllib_request.urlopen(request).read()
+        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+            self._downloader.trouble(u'ERROR: unable retrieve video webpage: %s' % compat_str(err))
+            return
+
+        # Extract URL, uploader and title from webpage
+        self.report_extraction(video_id)
+        mobj = re.search(r'\s*var flashvars = (.*)', webpage)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: unable to extract media URL')
+            return
+        flashvars = compat_urllib_parse.unquote(mobj.group(1))
+
+        for key in ['hd1080URL', 'hd720URL', 'hqURL', 'sdURL', 'ldURL', 'video_url']:
+            if key in flashvars:
+                max_quality = key
+                self._downloader.to_screen(u'[dailymotion] Using %s' % key)
+                break
+        else:
+            self._downloader.trouble(u'ERROR: unable to extract video URL')
+            return
+
+        mobj = re.search(r'"' + max_quality + r'":"(.+?)"', flashvars)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: unable to extract video URL')
+            return
+
+        video_url = compat_urllib_parse.unquote(mobj.group(1)).replace('\\/', '/')
+
+        # TODO: support choosing qualities
+
+        mobj = re.search(r'<meta property="og:title" content="(?P<title>[^"]*)" />', webpage)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: unable to extract title')
+            return
+        video_title = unescapeHTML(mobj.group('title').decode('utf-8'))
+
+        video_uploader = None
+        mobj = re.search(r'(?im)<span class="owner[^\"]+?">[^<]+?<a [^>]+?>([^<]+?)</a>', webpage)
+        if mobj is None:
+            # lookin for official user
+            mobj_official = re.search(r'<span rel="author"[^>]+?>([^<]+?)</span>', webpage)
+            if mobj_official is None:
+                self._downloader.trouble(u'WARNING: unable to extract uploader nickname')
+            else:
+                video_uploader = mobj_official.group(1)
+        else:
+            video_uploader = mobj.group(1)
+
+        video_upload_date = None
+        mobj = re.search(r'<div class="[^"]*uploaded_cont[^"]*" title="[^"]*">([0-9]{2})-([0-9]{2})-([0-9]{4})</div>', webpage)
+        if mobj is not None:
+            video_upload_date = mobj.group(3) + mobj.group(2) + mobj.group(1)
+
+        return [{
+            'id':       video_id.decode('utf-8'),
+            'url':      video_url.decode('utf-8'),
+            'uploader': video_uploader.decode('utf-8'),
+            'upload_date':  video_upload_date,
+            'title':    video_title,
+            'ext':      video_extension.decode('utf-8'),
+        }]

 
 
 class GoogleIE(InfoExtractor):
 
 
 class GoogleIE(InfoExtractor):

-       """Information extractor for video.google.com."""
-
-       _VALID_URL = r'(?:http://)?video\.google\.(?:com(?:\.au)?|co\.(?:uk|jp|kr|cr)|ca|de|es|fr|it|nl|pl)/videoplay\?docid=([^\&]+).*'
-       IE_NAME = u'video.google'
-
-       def __init__(self, downloader=None):
-               InfoExtractor.__init__(self, downloader)
-
-       def report_download_webpage(self, video_id):
-               """Report webpage download."""
-               self._downloader.to_screen(u'[video.google] %s: Downloading webpage' % video_id)
-
-       def report_extraction(self, video_id):
-               """Report information extraction."""
-               self._downloader.to_screen(u'[video.google] %s: Extracting information' % video_id)
-
-       def _real_extract(self, url):
-               # Extract id from URL
-               mobj = re.match(self._VALID_URL, url)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: Invalid URL: %s' % url)
-                       return
-
-               video_id = mobj.group(1)
-
-               video_extension = 'mp4'
-
-               # Retrieve video webpage to extract further information
-               request = urllib2.Request('http://video.google.com/videoplay?docid=%s&hl=en&oe=utf-8' % video_id)
-               try:
-                       self.report_download_webpage(video_id)
-                       webpage = urllib2.urlopen(request).read()
-               except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-                       self._downloader.trouble(u'ERROR: Unable to retrieve video webpage: %s' % str(err))
-                       return
-
-               # Extract URL, uploader, and title from webpage
-               self.report_extraction(video_id)
-               mobj = re.search(r"download_url:'([^']+)'", webpage)
-               if mobj is None:
-                       video_extension = 'flv'
-                       mobj = re.search(r"(?i)videoUrl\\x3d(.+?)\\x26", webpage)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: unable to extract media URL')
-                       return
-               mediaURL = urllib.unquote(mobj.group(1))
-               mediaURL = mediaURL.replace('\\x3d', '\x3d')
-               mediaURL = mediaURL.replace('\\x26', '\x26')
-
-               video_url = mediaURL
-
-               mobj = re.search(r'<title>(.*)</title>', webpage)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: unable to extract title')
-                       return
-               video_title = mobj.group(1).decode('utf-8')
-
-               # Extract video description
-               mobj = re.search(r'<span id=short-desc-content>([^<]*)</span>', webpage)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: unable to extract video description')
-                       return
-               video_description = mobj.group(1).decode('utf-8')
-               if not video_description:
-                       video_description = 'No description available.'
-
-               # Extract video thumbnail
-               if self._downloader.params.get('forcethumbnail', False):
-                       request = urllib2.Request('http://video.google.com/videosearch?q=%s+site:video.google.com&hl=en' % abs(int(video_id)))
-                       try:
-                               webpage = urllib2.urlopen(request).read()
-                       except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-                               self._downloader.trouble(u'ERROR: Unable to retrieve video webpage: %s' % str(err))
-                               return
-                       mobj = re.search(r'<img class=thumbnail-img (?:.* )?src=(http.*)>', webpage)
-                       if mobj is None:
-                               self._downloader.trouble(u'ERROR: unable to extract video thumbnail')
-                               return
-                       video_thumbnail = mobj.group(1)
-               else:   # we need something to pass to process_info
-                       video_thumbnail = ''
-
-               return [{
-                       'id':           video_id.decode('utf-8'),
-                       'url':          video_url.decode('utf-8'),
-                       'uploader':     u'NA',
-                       'upload_date':  u'NA',
-                       'title':        video_title,
-                       'ext':          video_extension.decode('utf-8'),
-                       'format':       u'NA',
-                       'player_url':   None,
-               }]
+    """Information extractor for video.google.com."""
+
+    _VALID_URL = r'(?:http://)?video\.google\.(?:com(?:\.au)?|co\.(?:uk|jp|kr|cr)|ca|de|es|fr|it|nl|pl)/videoplay\?docid=([^\&]+).*'
+    IE_NAME = u'video.google'
+
+    def __init__(self, downloader=None):
+        InfoExtractor.__init__(self, downloader)
+
+    def report_download_webpage(self, video_id):
+        """Report webpage download."""
+        self._downloader.to_screen(u'[video.google] %s: Downloading webpage' % video_id)
+
+    def report_extraction(self, video_id):
+        """Report information extraction."""
+        self._downloader.to_screen(u'[video.google] %s: Extracting information' % video_id)
+
+    def _real_extract(self, url):
+        # Extract id from URL
+        mobj = re.match(self._VALID_URL, url)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: Invalid URL: %s' % url)
+            return
+
+        video_id = mobj.group(1)
+
+        video_extension = 'mp4'
+
+        # Retrieve video webpage to extract further information
+        request = compat_urllib_request.Request('http://video.google.com/videoplay?docid=%s&hl=en&oe=utf-8' % video_id)
+        try:
+            self.report_download_webpage(video_id)
+            webpage = compat_urllib_request.urlopen(request).read()
+        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+            self._downloader.trouble(u'ERROR: Unable to retrieve video webpage: %s' % compat_str(err))
+            return
+
+        # Extract URL, uploader, and title from webpage
+        self.report_extraction(video_id)
+        mobj = re.search(r"download_url:'([^']+)'", webpage)
+        if mobj is None:
+            video_extension = 'flv'
+            mobj = re.search(r"(?i)videoUrl\\x3d(.+?)\\x26", webpage)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: unable to extract media URL')
+            return
+        mediaURL = compat_urllib_parse.unquote(mobj.group(1))
+        mediaURL = mediaURL.replace('\\x3d', '\x3d')
+        mediaURL = mediaURL.replace('\\x26', '\x26')
+
+        video_url = mediaURL
+
+        mobj = re.search(r'<title>(.*)</title>', webpage)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: unable to extract title')
+            return
+        video_title = mobj.group(1).decode('utf-8')
+
+        # Extract video description
+        mobj = re.search(r'<span id=short-desc-content>([^<]*)</span>', webpage)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: unable to extract video description')
+            return
+        video_description = mobj.group(1).decode('utf-8')
+        if not video_description:
+            video_description = 'No description available.'
+
+        # Extract video thumbnail
+        if self._downloader.params.get('forcethumbnail', False):
+            request = compat_urllib_request.Request('http://video.google.com/videosearch?q=%s+site:video.google.com&hl=en' % abs(int(video_id)))
+            try:
+                webpage = compat_urllib_request.urlopen(request).read()
+            except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+                self._downloader.trouble(u'ERROR: Unable to retrieve video webpage: %s' % compat_str(err))
+                return
+            mobj = re.search(r'<img class=thumbnail-img (?:.* )?src=(http.*)>', webpage)
+            if mobj is None:
+                self._downloader.trouble(u'ERROR: unable to extract video thumbnail')
+                return
+            video_thumbnail = mobj.group(1)
+        else:   # we need something to pass to process_info
+            video_thumbnail = ''
+
+        return [{
+            'id':       video_id.decode('utf-8'),
+            'url':      video_url.decode('utf-8'),
+            'uploader': None,
+            'upload_date':  None,
+            'title':    video_title,
+            'ext':      video_extension.decode('utf-8'),
+        }]

 
 
 class PhotobucketIE(InfoExtractor):
 
 
 class PhotobucketIE(InfoExtractor):

-       """Information extractor for photobucket.com."""
-
-       _VALID_URL = r'(?:http://)?(?:[a-z0-9]+\.)?photobucket\.com/.*[\?\&]current=(.*\.flv)'
-       IE_NAME = u'photobucket'
-
-       def __init__(self, downloader=None):
-               InfoExtractor.__init__(self, downloader)
-
-       def report_download_webpage(self, video_id):
-               """Report webpage download."""
-               self._downloader.to_screen(u'[photobucket] %s: Downloading webpage' % video_id)
-
-       def report_extraction(self, video_id):
-               """Report information extraction."""
-               self._downloader.to_screen(u'[photobucket] %s: Extracting information' % video_id)
-
-       def _real_extract(self, url):
-               # Extract id from URL
-               mobj = re.match(self._VALID_URL, url)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: Invalid URL: %s' % url)
-                       return
-
-               video_id = mobj.group(1)
-
-               video_extension = 'flv'
-
-               # Retrieve video webpage to extract further information
-               request = urllib2.Request(url)
-               try:
-                       self.report_download_webpage(video_id)
-                       webpage = urllib2.urlopen(request).read()
-               except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-                       self._downloader.trouble(u'ERROR: Unable to retrieve video webpage: %s' % str(err))
-                       return
-
-               # Extract URL, uploader, and title from webpage
-               self.report_extraction(video_id)
-               mobj = re.search(r'<link rel="video_src" href=".*\?file=([^"]+)" />', webpage)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: unable to extract media URL')
-                       return
-               mediaURL = urllib.unquote(mobj.group(1))
-
-               video_url = mediaURL
-
-               mobj = re.search(r'<title>(.*) video by (.*) - Photobucket</title>', webpage)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: unable to extract title')
-                       return
-               video_title = mobj.group(1).decode('utf-8')
-
-               video_uploader = mobj.group(2).decode('utf-8')
-
-               return [{
-                       'id':           video_id.decode('utf-8'),
-                       'url':          video_url.decode('utf-8'),
-                       'uploader':     video_uploader,
-                       'upload_date':  u'NA',
-                       'title':        video_title,
-                       'ext':          video_extension.decode('utf-8'),
-                       'format':       u'NA',
-                       'player_url':   None,
-               }]
+    """Information extractor for photobucket.com."""
+
+    _VALID_URL = r'(?:http://)?(?:[a-z0-9]+\.)?photobucket\.com/.*[\?\&]current=(.*\.flv)'
+    IE_NAME = u'photobucket'
+
+    def __init__(self, downloader=None):
+        InfoExtractor.__init__(self, downloader)
+
+    def report_download_webpage(self, video_id):
+        """Report webpage download."""
+        self._downloader.to_screen(u'[photobucket] %s: Downloading webpage' % video_id)
+
+    def report_extraction(self, video_id):
+        """Report information extraction."""
+        self._downloader.to_screen(u'[photobucket] %s: Extracting information' % video_id)
+
+    def _real_extract(self, url):
+        # Extract id from URL
+        mobj = re.match(self._VALID_URL, url)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: Invalid URL: %s' % url)
+            return
+
+        video_id = mobj.group(1)
+
+        video_extension = 'flv'
+
+        # Retrieve video webpage to extract further information
+        request = compat_urllib_request.Request(url)
+        try:
+            self.report_download_webpage(video_id)
+            webpage = compat_urllib_request.urlopen(request).read()
+        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+            self._downloader.trouble(u'ERROR: Unable to retrieve video webpage: %s' % compat_str(err))
+            return
+
+        # Extract URL, uploader, and title from webpage
+        self.report_extraction(video_id)
+        mobj = re.search(r'<link rel="video_src" href=".*\?file=([^"]+)" />', webpage)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: unable to extract media URL')
+            return
+        mediaURL = compat_urllib_parse.unquote(mobj.group(1))
+
+        video_url = mediaURL
+
+        mobj = re.search(r'<title>(.*) video by (.*) - Photobucket</title>', webpage)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: unable to extract title')
+            return
+        video_title = mobj.group(1).decode('utf-8')
+
+        video_uploader = mobj.group(2).decode('utf-8')
+
+        return [{
+            'id':       video_id.decode('utf-8'),
+            'url':      video_url.decode('utf-8'),
+            'uploader': video_uploader,
+            'upload_date':  None,
+            'title':    video_title,
+            'ext':      video_extension.decode('utf-8'),
+        }]

 
 
 class YahooIE(InfoExtractor):
 
 
 class YahooIE(InfoExtractor):

-       """Information extractor for video.yahoo.com."""
-
-       # _VALID_URL matches all Yahoo! Video URLs
-       # _VPAGE_URL matches only the extractable '/watch/' URLs
-       _VALID_URL = r'(?:http://)?(?:[a-z]+\.)?video\.yahoo\.com/(?:watch|network)/([0-9]+)(?:/|\?v=)([0-9]+)(?:[#\?].*)?'
-       _VPAGE_URL = r'(?:http://)?video\.yahoo\.com/watch/([0-9]+)/([0-9]+)(?:[#\?].*)?'
-       IE_NAME = u'video.yahoo'
-
-       def __init__(self, downloader=None):
-               InfoExtractor.__init__(self, downloader)
-
-       def report_download_webpage(self, video_id):
-               """Report webpage download."""
-               self._downloader.to_screen(u'[video.yahoo] %s: Downloading webpage' % video_id)
-
-       def report_extraction(self, video_id):
-               """Report information extraction."""
-               self._downloader.to_screen(u'[video.yahoo] %s: Extracting information' % video_id)
-
-       def _real_extract(self, url, new_video=True):
-               # Extract ID from URL
-               mobj = re.match(self._VALID_URL, url)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: Invalid URL: %s' % url)
-                       return
-
-               video_id = mobj.group(2)
-               video_extension = 'flv'
-
-               # Rewrite valid but non-extractable URLs as
-               # extractable English language /watch/ URLs
-               if re.match(self._VPAGE_URL, url) is None:
-                       request = urllib2.Request(url)
-                       try:
-                               webpage = urllib2.urlopen(request).read()
-                       except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-                               self._downloader.trouble(u'ERROR: Unable to retrieve video webpage: %s' % str(err))
-                               return
-
-                       mobj = re.search(r'\("id", "([0-9]+)"\);', webpage)
-                       if mobj is None:
-                               self._downloader.trouble(u'ERROR: Unable to extract id field')
-                               return
-                       yahoo_id = mobj.group(1)
-
-                       mobj = re.search(r'\("vid", "([0-9]+)"\);', webpage)
-                       if mobj is None:
-                               self._downloader.trouble(u'ERROR: Unable to extract vid field')
-                               return
-                       yahoo_vid = mobj.group(1)
-
-                       url = 'http://video.yahoo.com/watch/%s/%s' % (yahoo_vid, yahoo_id)
-                       return self._real_extract(url, new_video=False)
-
-               # Retrieve video webpage to extract further information
-               request = urllib2.Request(url)
-               try:
-                       self.report_download_webpage(video_id)
-                       webpage = urllib2.urlopen(request).read()
-               except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-                       self._downloader.trouble(u'ERROR: Unable to retrieve video webpage: %s' % str(err))
-                       return
-
-               # Extract uploader and title from webpage
-               self.report_extraction(video_id)
-               mobj = re.search(r'<meta name="title" content="(.*)" />', webpage)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: unable to extract video title')
-                       return
-               video_title = mobj.group(1).decode('utf-8')
-
-               mobj = re.search(r'<h2 class="ti-5"><a href="http://video\.yahoo\.com/(people|profile)/[0-9]+" beacon=".*">(.*)</a></h2>', webpage)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: unable to extract video uploader')
-                       return
-               video_uploader = mobj.group(1).decode('utf-8')
-
-               # Extract video thumbnail
-               mobj = re.search(r'<link rel="image_src" href="(.*)" />', webpage)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: unable to extract video thumbnail')
-                       return
-               video_thumbnail = mobj.group(1).decode('utf-8')
-
-               # Extract video description
-               mobj = re.search(r'<meta name="description" content="(.*)" />', webpage)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: unable to extract video description')
-                       return
-               video_description = mobj.group(1).decode('utf-8')
-               if not video_description:
-                       video_description = 'No description available.'
-
-               # Extract video height and width
-               mobj = re.search(r'<meta name="video_height" content="([0-9]+)" />', webpage)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: unable to extract video height')
-                       return
-               yv_video_height = mobj.group(1)
-
-               mobj = re.search(r'<meta name="video_width" content="([0-9]+)" />', webpage)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: unable to extract video width')
-                       return
-               yv_video_width = mobj.group(1)
-
-               # Retrieve video playlist to extract media URL
-               # I'm not completely sure what all these options are, but we
-               # seem to need most of them, otherwise the server sends a 401.
-               yv_lg = 'R0xx6idZnW2zlrKP8xxAIR'  # not sure what this represents
-               yv_bitrate = '700'  # according to Wikipedia this is hard-coded
-               request = urllib2.Request('http://cosmos.bcst.yahoo.com/up/yep/process/getPlaylistFOP.php?node_id=' + video_id +
-                               '&tech=flash&mode=playlist&lg=' + yv_lg + '&bitrate=' + yv_bitrate + '&vidH=' + yv_video_height +
-                               '&vidW=' + yv_video_width + '&swf=as3&rd=video.yahoo.com&tk=null&adsupported=v1,v2,&eventid=1301797')
-               try:
-                       self.report_download_webpage(video_id)
-                       webpage = urllib2.urlopen(request).read()
-               except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-                       self._downloader.trouble(u'ERROR: Unable to retrieve video webpage: %s' % str(err))
-                       return
-
-               # Extract media URL from playlist XML
-               mobj = re.search(r'<STREAM APP="(http://.*)" FULLPATH="/?(/.*\.flv\?[^"]*)"', webpage)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: Unable to extract media URL')
-                       return
-               video_url = urllib.unquote(mobj.group(1) + mobj.group(2)).decode('utf-8')
-               video_url = unescapeHTML(video_url)
-
-               return [{
-                       'id':           video_id.decode('utf-8'),
-                       'url':          video_url,
-                       'uploader':     video_uploader,
-                       'upload_date':  u'NA',
-                       'title':        video_title,
-                       'ext':          video_extension.decode('utf-8'),
-                       'thumbnail':    video_thumbnail.decode('utf-8'),
-                       'description':  video_description,
-                       'thumbnail':    video_thumbnail,
-                       'player_url':   None,
-               }]
+    """Information extractor for video.yahoo.com."""
+
+    # _VALID_URL matches all Yahoo! Video URLs
+    # _VPAGE_URL matches only the extractable '/watch/' URLs
+    _VALID_URL = r'(?:http://)?(?:[a-z]+\.)?video\.yahoo\.com/(?:watch|network)/([0-9]+)(?:/|\?v=)([0-9]+)(?:[#\?].*)?'
+    _VPAGE_URL = r'(?:http://)?video\.yahoo\.com/watch/([0-9]+)/([0-9]+)(?:[#\?].*)?'
+    IE_NAME = u'video.yahoo'
+
+    def __init__(self, downloader=None):
+        InfoExtractor.__init__(self, downloader)
+
+    def report_download_webpage(self, video_id):
+        """Report webpage download."""
+        self._downloader.to_screen(u'[video.yahoo] %s: Downloading webpage' % video_id)
+
+    def report_extraction(self, video_id):
+        """Report information extraction."""
+        self._downloader.to_screen(u'[video.yahoo] %s: Extracting information' % video_id)
+
+    def _real_extract(self, url, new_video=True):
+        # Extract ID from URL
+        mobj = re.match(self._VALID_URL, url)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: Invalid URL: %s' % url)
+            return
+
+        video_id = mobj.group(2)
+        video_extension = 'flv'
+
+        # Rewrite valid but non-extractable URLs as
+        # extractable English language /watch/ URLs
+        if re.match(self._VPAGE_URL, url) is None:
+            request = compat_urllib_request.Request(url)
+            try:
+                webpage = compat_urllib_request.urlopen(request).read()
+            except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+                self._downloader.trouble(u'ERROR: Unable to retrieve video webpage: %s' % compat_str(err))
+                return
+
+            mobj = re.search(r'\("id", "([0-9]+)"\);', webpage)
+            if mobj is None:
+                self._downloader.trouble(u'ERROR: Unable to extract id field')
+                return
+            yahoo_id = mobj.group(1)
+
+            mobj = re.search(r'\("vid", "([0-9]+)"\);', webpage)
+            if mobj is None:
+                self._downloader.trouble(u'ERROR: Unable to extract vid field')
+                return
+            yahoo_vid = mobj.group(1)
+
+            url = 'http://video.yahoo.com/watch/%s/%s' % (yahoo_vid, yahoo_id)
+            return self._real_extract(url, new_video=False)
+
+        # Retrieve video webpage to extract further information
+        request = compat_urllib_request.Request(url)
+        try:
+            self.report_download_webpage(video_id)
+            webpage = compat_urllib_request.urlopen(request).read()
+        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+            self._downloader.trouble(u'ERROR: Unable to retrieve video webpage: %s' % compat_str(err))
+            return
+
+        # Extract uploader and title from webpage
+        self.report_extraction(video_id)
+        mobj = re.search(r'<meta name="title" content="(.*)" />', webpage)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: unable to extract video title')
+            return
+        video_title = mobj.group(1).decode('utf-8')
+
+        mobj = re.search(r'<h2 class="ti-5"><a href="http://video\.yahoo\.com/(people|profile)/[0-9]+" beacon=".*">(.*)</a></h2>', webpage)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: unable to extract video uploader')
+            return
+        video_uploader = mobj.group(1).decode('utf-8')
+
+        # Extract video thumbnail
+        mobj = re.search(r'<link rel="image_src" href="(.*)" />', webpage)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: unable to extract video thumbnail')
+            return
+        video_thumbnail = mobj.group(1).decode('utf-8')
+
+        # Extract video description
+        mobj = re.search(r'<meta name="description" content="(.*)" />', webpage)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: unable to extract video description')
+            return
+        video_description = mobj.group(1).decode('utf-8')
+        if not video_description:
+            video_description = 'No description available.'
+
+        # Extract video height and width
+        mobj = re.search(r'<meta name="video_height" content="([0-9]+)" />', webpage)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: unable to extract video height')
+            return
+        yv_video_height = mobj.group(1)
+
+        mobj = re.search(r'<meta name="video_width" content="([0-9]+)" />', webpage)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: unable to extract video width')
+            return
+        yv_video_width = mobj.group(1)
+
+        # Retrieve video playlist to extract media URL
+        # I'm not completely sure what all these options are, but we
+        # seem to need most of them, otherwise the server sends a 401.
+        yv_lg = 'R0xx6idZnW2zlrKP8xxAIR'  # not sure what this represents
+        yv_bitrate = '700'  # according to Wikipedia this is hard-coded
+        request = compat_urllib_request.Request('http://cosmos.bcst.yahoo.com/up/yep/process/getPlaylistFOP.php?node_id=' + video_id +
+                '&tech=flash&mode=playlist&lg=' + yv_lg + '&bitrate=' + yv_bitrate + '&vidH=' + yv_video_height +
+                '&vidW=' + yv_video_width + '&swf=as3&rd=video.yahoo.com&tk=null&adsupported=v1,v2,&eventid=1301797')
+        try:
+            self.report_download_webpage(video_id)
+            webpage = compat_urllib_request.urlopen(request).read()
+        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+            self._downloader.trouble(u'ERROR: Unable to retrieve video webpage: %s' % compat_str(err))
+            return
+
+        # Extract media URL from playlist XML
+        mobj = re.search(r'<STREAM APP="(http://.*)" FULLPATH="/?(/.*\.flv\?[^"]*)"', webpage)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: Unable to extract media URL')
+            return
+        video_url = compat_urllib_parse.unquote(mobj.group(1) + mobj.group(2)).decode('utf-8')
+        video_url = unescapeHTML(video_url)
+
+        return [{
+            'id':       video_id.decode('utf-8'),
+            'url':      video_url,
+            'uploader': video_uploader,
+            'upload_date':  None,
+            'title':    video_title,
+            'ext':      video_extension.decode('utf-8'),
+            'thumbnail':    video_thumbnail.decode('utf-8'),
+            'description':  video_description,
+        }]

 
 
 class VimeoIE(InfoExtractor):
 
 
 class VimeoIE(InfoExtractor):

-       """Information extractor for vimeo.com."""
-
-       # _VALID_URL matches Vimeo URLs
-       _VALID_URL = r'(?:https?://)?(?:(?:www|player).)?vimeo\.com/(?:groups/[^/]+/)?(?:videos?/)?([0-9]+)'
-       IE_NAME = u'vimeo'
-
-       def __init__(self, downloader=None):
-               InfoExtractor.__init__(self, downloader)
-
-       def report_download_webpage(self, video_id):
-               """Report webpage download."""
-               self._downloader.to_screen(u'[vimeo] %s: Downloading webpage' % video_id)
-
-       def report_extraction(self, video_id):
-               """Report information extraction."""
-               self._downloader.to_screen(u'[vimeo] %s: Extracting information' % video_id)
-
-       def _real_extract(self, url, new_video=True):
-               # Extract ID from URL
-               mobj = re.match(self._VALID_URL, url)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: Invalid URL: %s' % url)
-                       return
-
-               video_id = mobj.group(1)
-
-               # Retrieve video webpage to extract further information
-               request = urllib2.Request(url, None, std_headers)
-               try:
-                       self.report_download_webpage(video_id)
-                       webpage = urllib2.urlopen(request).read()
-               except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-                       self._downloader.trouble(u'ERROR: Unable to retrieve video webpage: %s' % str(err))
-                       return
-
-               # Now we begin extracting as much information as we can from what we
-               # retrieved. First we extract the information common to all extractors,
-               # and latter we extract those that are Vimeo specific.
-               self.report_extraction(video_id)
-
-               # Extract the config JSON
-               config = webpage.split(' = {config:')[1].split(',assets:')[0]
-               try:
-                       config = json.loads(config)
-               except:
-                       self._downloader.trouble(u'ERROR: unable to extract info section')
-                       return
-               
-               # Extract title
-               video_title = config["video"]["title"]
-
-               # Extract uploader
-               video_uploader = config["video"]["owner"]["name"]
-
-               # Extract video thumbnail
-               video_thumbnail = config["video"]["thumbnail"]
-
-               # Extract video description
-               video_description = get_element_by_id("description", webpage.decode('utf8'))
-               if video_description: video_description = clean_html(video_description)
-               else: video_description = ''
-
-               # Extract upload date
-               video_upload_date = u'NA'
-               mobj = re.search(r'<span id="clip-date" style="display:none">[^:]*: (.*?)( \([^\(]*\))?</span>', webpage)
-               if mobj is not None:
-                       video_upload_date = mobj.group(1)
-
-               # Vimeo specific: extract request signature and timestamp
-               sig = config['request']['signature']
-               timestamp = config['request']['timestamp']
-
-               # Vimeo specific: extract video codec and quality information
-               # TODO bind to format param
-               codecs = [('h264', 'mp4'), ('vp8', 'flv'), ('vp6', 'flv')]
-               for codec in codecs:
-                       if codec[0] in config["video"]["files"]:
-                               video_codec = codec[0]
-                               video_extension = codec[1]
-                               if 'hd' in config["video"]["files"][codec[0]]: quality = 'hd'
-                               else: quality = 'sd'
-                               break
-               else:
-                       self._downloader.trouble(u'ERROR: no known codec found')
-                       return
-
-               video_url = "http://player.vimeo.com/play_redirect?clip_id=%s&sig=%s&time=%s&quality=%s&codecs=%s&type=moogaloop_local&embed_location=" \
-                                       %(video_id, sig, timestamp, quality, video_codec.upper())
-
-               return [{
-                       'id':           video_id,
-                       'url':          video_url,
-                       'uploader':     video_uploader,
-                       'upload_date':  video_upload_date,
-                       'title':        video_title,
-                       'ext':          video_extension,
-                       'thumbnail':    video_thumbnail,
-                       'description':  video_description,
-                       'player_url':   None,
-               }]
+    """Information extractor for vimeo.com."""
+
+    # _VALID_URL matches Vimeo URLs
+    _VALID_URL = r'(?:https?://)?(?:(?:www|player).)?vimeo\.com/(?:(?:groups|album)/[^/]+/)?(?:videos?/)?([0-9]+)'
+    IE_NAME = u'vimeo'
+
+    def __init__(self, downloader=None):
+        InfoExtractor.__init__(self, downloader)
+
+    def report_download_webpage(self, video_id):
+        """Report webpage download."""
+        self._downloader.to_screen(u'[vimeo] %s: Downloading webpage' % video_id)
+
+    def report_extraction(self, video_id):
+        """Report information extraction."""
+        self._downloader.to_screen(u'[vimeo] %s: Extracting information' % video_id)
+
+    def _real_extract(self, url, new_video=True):
+        # Extract ID from URL
+        mobj = re.match(self._VALID_URL, url)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: Invalid URL: %s' % url)
+            return
+
+        video_id = mobj.group(1)
+
+        # Retrieve video webpage to extract further information
+        request = compat_urllib_request.Request(url, None, std_headers)
+        try:
+            self.report_download_webpage(video_id)
+            webpage = compat_urllib_request.urlopen(request).read()
+        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+            self._downloader.trouble(u'ERROR: Unable to retrieve video webpage: %s' % compat_str(err))
+            return
+
+        # Now we begin extracting as much information as we can from what we
+        # retrieved. First we extract the information common to all extractors,
+        # and latter we extract those that are Vimeo specific.
+        self.report_extraction(video_id)
+
+        # Extract the config JSON
+        try:
+            config = webpage.split(' = {config:')[1].split(',assets:')[0]
+            config = json.loads(config)
+        except:
+            self._downloader.trouble(u'ERROR: unable to extract info section')
+            return
+        
+        # Extract title
+        video_title = config["video"]["title"]
+
+        # Extract uploader
+        video_uploader = config["video"]["owner"]["name"]
+
+        # Extract video thumbnail
+        video_thumbnail = config["video"]["thumbnail"]
+
+        # Extract video description
+        video_description = get_element_by_id("description", webpage.decode('utf8'))
+        if video_description: video_description = clean_html(video_description)
+        else: video_description = ''
+
+        # Extract upload date
+        video_upload_date = None
+        mobj = re.search(r'<span id="clip-date" style="display:none">[^:]*: (.*?)( \([^\(]*\))?</span>', webpage)
+        if mobj is not None:
+            video_upload_date = mobj.group(1)
+
+        # Vimeo specific: extract request signature and timestamp
+        sig = config['request']['signature']
+        timestamp = config['request']['timestamp']
+
+        # Vimeo specific: extract video codec and quality information
+        # First consider quality, then codecs, then take everything
+        # TODO bind to format param
+        codecs = [('h264', 'mp4'), ('vp8', 'flv'), ('vp6', 'flv')]
+        files = { 'hd': [], 'sd': [], 'other': []}
+        for codec_name, codec_extension in codecs:
+            if codec_name in config["video"]["files"]:
+                if 'hd' in config["video"]["files"][codec_name]:
+                    files['hd'].append((codec_name, codec_extension, 'hd'))
+                elif 'sd' in config["video"]["files"][codec_name]:
+                    files['sd'].append((codec_name, codec_extension, 'sd'))
+                else:
+                    files['other'].append((codec_name, codec_extension, config["video"]["files"][codec_name][0]))
+
+        for quality in ('hd', 'sd', 'other'):
+            if len(files[quality]) > 0:
+                video_quality = files[quality][0][2]
+                video_codec = files[quality][0][0]
+                video_extension = files[quality][0][1]
+                self._downloader.to_screen(u'[vimeo] %s: Downloading %s file at %s quality' % (video_id, video_codec.upper(), video_quality))
+                break
+        else:
+            self._downloader.trouble(u'ERROR: no known codec found')
+            return
+
+        video_url = "http://player.vimeo.com/play_redirect?clip_id=%s&sig=%s&time=%s&quality=%s&codecs=%s&type=moogaloop_local&embed_location=" \
+                    %(video_id, sig, timestamp, video_quality, video_codec.upper())
+
+        return [{
+            'id':       video_id,
+            'url':      video_url,
+            'uploader': video_uploader,
+            'upload_date':  video_upload_date,
+            'title':    video_title,
+            'ext':      video_extension,
+            'thumbnail':    video_thumbnail,
+            'description':  video_description,
+        }]
+
+
+class ArteTvIE(InfoExtractor):
+    """arte.tv information extractor."""
+
+    _VALID_URL = r'(?:http://)?videos\.arte\.tv/(?:fr|de)/videos/.*'
+    _LIVE_URL = r'index-[0-9]+\.html$'
+
+    IE_NAME = u'arte.tv'
+
+    def __init__(self, downloader=None):
+        InfoExtractor.__init__(self, downloader)
+
+    def report_download_webpage(self, video_id):
+        """Report webpage download."""
+        self._downloader.to_screen(u'[arte.tv] %s: Downloading webpage' % video_id)
+
+    def report_extraction(self, video_id):
+        """Report information extraction."""
+        self._downloader.to_screen(u'[arte.tv] %s: Extracting information' % video_id)
+
+    def fetch_webpage(self, url):
+        self._downloader.increment_downloads()
+        request = compat_urllib_request.Request(url)
+        try:
+            self.report_download_webpage(url)
+            webpage = compat_urllib_request.urlopen(request).read()
+        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+            self._downloader.trouble(u'ERROR: Unable to retrieve video webpage: %s' % compat_str(err))
+            return
+        except ValueError as err:
+            self._downloader.trouble(u'ERROR: Invalid URL: %s' % url)
+            return
+        return webpage
+
+    def grep_webpage(self, url, regex, regexFlags, matchTuples):
+        page = self.fetch_webpage(url)
+        mobj = re.search(regex, page, regexFlags)
+        info = {}
+
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: Invalid URL: %s' % url)
+            return
+
+        for (i, key, err) in matchTuples:
+            if mobj.group(i) is None:
+                self._downloader.trouble(err)
+                return
+            else:
+                info[key] = mobj.group(i)
+
+        return info
+
+    def extractLiveStream(self, url):
+        video_lang = url.split('/')[-4]
+        info = self.grep_webpage(
+            url,
+            r'src="(.*?/videothek_js.*?\.js)',
+            0,
+            [
+                (1, 'url', u'ERROR: Invalid URL: %s' % url)
+            ]
+        )
+        http_host = url.split('/')[2]
+        next_url = 'http://%s%s' % (http_host, compat_urllib_parse.unquote(info.get('url')))
+        info = self.grep_webpage(
+            next_url,
+            r'(s_artestras_scst_geoFRDE_' + video_lang + '.*?)\'.*?' +
+                '(http://.*?\.swf).*?' +
+                '(rtmp://.*?)\'',
+            re.DOTALL,
+            [
+                (1, 'path',   u'ERROR: could not extract video path: %s' % url),
+                (2, 'player', u'ERROR: could not extract video player: %s' % url),
+                (3, 'url',    u'ERROR: could not extract video url: %s' % url)
+            ]
+        )
+        video_url = u'%s/%s' % (info.get('url'), info.get('path'))
+
+    def extractPlus7Stream(self, url):
+        video_lang = url.split('/')[-3]
+        info = self.grep_webpage(
+            url,
+            r'param name="movie".*?videorefFileUrl=(http[^\'"&]*)',
+            0,
+            [
+                (1, 'url', u'ERROR: Invalid URL: %s' % url)
+            ]
+        )
+        next_url = compat_urllib_parse.unquote(info.get('url'))
+        info = self.grep_webpage(
+            next_url,
+            r'<video lang="%s" ref="(http[^\'"&]*)' % video_lang,
+            0,
+            [
+                (1, 'url', u'ERROR: Could not find <video> tag: %s' % url)
+            ]
+        )
+        next_url = compat_urllib_parse.unquote(info.get('url'))
+
+        info = self.grep_webpage(
+            next_url,
+            r'<video id="(.*?)".*?>.*?' +
+                '<name>(.*?)</name>.*?' +
+                '<dateVideo>(.*?)</dateVideo>.*?' +
+                '<url quality="hd">(.*?)</url>',
+            re.DOTALL,
+            [
+                (1, 'id',    u'ERROR: could not extract video id: %s' % url),
+                (2, 'title', u'ERROR: could not extract video title: %s' % url),
+                (3, 'date',  u'ERROR: could not extract video date: %s' % url),
+                (4, 'url',   u'ERROR: could not extract video url: %s' % url)
+            ]
+        )
+
+        return {
+            'id':           info.get('id'),
+            'url':          compat_urllib_parse.unquote(info.get('url')),
+            'uploader':     u'arte.tv',
+            'upload_date':  info.get('date'),
+            'title':        info.get('title'),
+            'ext':          u'mp4',
+            'format':       u'NA',
+            'player_url':   None,
+        }
+
+    def _real_extract(self, url):
+        video_id = url.split('/')[-1]
+        self.report_extraction(video_id)
+
+        if re.search(self._LIVE_URL, video_id) is not None:
+            self.extractLiveStream(url)
+            return
+        else:
+            info = self.extractPlus7Stream(url)
+
+        return [info]

 
 
 class GenericIE(InfoExtractor):
 
 
 class GenericIE(InfoExtractor):

-       """Generic last-resort information extractor."""
-
-       _VALID_URL = r'.*'
-       IE_NAME = u'generic'
-
-       def __init__(self, downloader=None):
-               InfoExtractor.__init__(self, downloader)
-
-       def report_download_webpage(self, video_id):
-               """Report webpage download."""
-               self._downloader.to_screen(u'WARNING: Falling back on generic information extractor.')
-               self._downloader.to_screen(u'[generic] %s: Downloading webpage' % video_id)
-
-       def report_extraction(self, video_id):
-               """Report information extraction."""
-               self._downloader.to_screen(u'[generic] %s: Extracting information' % video_id)
-
-       def report_following_redirect(self, new_url):
-               """Report information extraction."""
-               self._downloader.to_screen(u'[redirect] Following redirect to %s' % new_url)
-               
-       def _test_redirect(self, url):
-               """Check if it is a redirect, like url shorteners, in case restart chain."""
-               class HeadRequest(urllib2.Request):
-                       def get_method(self):
-                               return "HEAD"
-
-               class HEADRedirectHandler(urllib2.HTTPRedirectHandler):
-                       """
-                       Subclass the HTTPRedirectHandler to make it use our 
-                       HeadRequest also on the redirected URL
-                       """
-                       def redirect_request(self, req, fp, code, msg, headers, newurl): 
-                               if code in (301, 302, 303, 307):
-                                       newurl = newurl.replace(' ', '%20') 
-                                       newheaders = dict((k,v) for k,v in req.headers.items()
-                                                                         if k.lower() not in ("content-length", "content-type"))
-                                       return HeadRequest(newurl, 
-                                                                          headers=newheaders,
-                                                                          origin_req_host=req.get_origin_req_host(), 
-                                                                          unverifiable=True) 
-                               else: 
-                                       raise urllib2.HTTPError(req.get_full_url(), code, msg, headers, fp) 
-
-               class HTTPMethodFallback(urllib2.BaseHandler):
-                       """
-                       Fallback to GET if HEAD is not allowed (405 HTTP error)
-                       """
-                       def http_error_405(self, req, fp, code, msg, headers): 
-                               fp.read()
-                               fp.close()
-
-                               newheaders = dict((k,v) for k,v in req.headers.items()
-                                                                 if k.lower() not in ("content-length", "content-type"))
-                               return self.parent.open(urllib2.Request(req.get_full_url(), 
-                                                                                                headers=newheaders, 
-                                                                                                origin_req_host=req.get_origin_req_host(), 
-                                                                                                unverifiable=True))
-
-               # Build our opener
-               opener = urllib2.OpenerDirector() 
-               for handler in [urllib2.HTTPHandler, urllib2.HTTPDefaultErrorHandler,
-                                               HTTPMethodFallback, HEADRedirectHandler,
-                                               urllib2.HTTPErrorProcessor, urllib2.HTTPSHandler]:
-                       opener.add_handler(handler())
-
-               response = opener.open(HeadRequest(url))
-               new_url = response.geturl()
-               
-               if url == new_url: return False
-               
-               self.report_following_redirect(new_url)
-               self._downloader.download([new_url])
-               return True
-
-       def _real_extract(self, url):
-               if self._test_redirect(url): return
-
-               video_id = url.split('/')[-1]
-               request = urllib2.Request(url)
-               try:
-                       self.report_download_webpage(video_id)
-                       webpage = urllib2.urlopen(request).read()
-               except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-                       self._downloader.trouble(u'ERROR: Unable to retrieve video webpage: %s' % str(err))
-                       return
-               except ValueError, err:
-                       # since this is the last-resort InfoExtractor, if
-                       # this error is thrown, it'll be thrown here
-                       self._downloader.trouble(u'ERROR: Invalid URL: %s' % url)
-                       return
-
-               self.report_extraction(video_id)
-               # Start with something easy: JW Player in SWFObject
-               mobj = re.search(r'flashvars: [\'"](?:.*&)?file=(http[^\'"&]*)', webpage)
-               if mobj is None:
-                       # Broaden the search a little bit
-                       mobj = re.search(r'[^A-Za-z0-9]?(?:file|source)=(http[^\'"&]*)', webpage)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: Invalid URL: %s' % url)
-                       return
-
-               # It's possible that one of the regexes
-               # matched, but returned an empty group:
-               if mobj.group(1) is None:
-                       self._downloader.trouble(u'ERROR: Invalid URL: %s' % url)
-                       return
-
-               video_url = urllib.unquote(mobj.group(1))
-               video_id = os.path.basename(video_url)
-
-               # here's a fun little line of code for you:
-               video_extension = os.path.splitext(video_id)[1][1:]
-               video_id = os.path.splitext(video_id)[0]
-
-               # it's tempting to parse this further, but you would
-               # have to take into account all the variations like
-               #   Video Title - Site Name
-               #   Site Name | Video Title
-               #   Video Title - Tagline | Site Name
-               # and so on and so forth; it's just not practical
-               mobj = re.search(r'<title>(.*)</title>', webpage)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: unable to extract title')
-                       return
-               video_title = mobj.group(1).decode('utf-8')
-
-               # video uploader is domain name
-               mobj = re.match(r'(?:https?://)?([^/]*)/.*', url)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: unable to extract title')
-                       return
-               video_uploader = mobj.group(1).decode('utf-8')
-
-               return [{
-                       'id':           video_id.decode('utf-8'),
-                       'url':          video_url.decode('utf-8'),
-                       'uploader':     video_uploader,
-                       'upload_date':  u'NA',
-                       'title':        video_title,
-                       'ext':          video_extension.decode('utf-8'),
-                       'format':       u'NA',
-                       'player_url':   None,
-               }]
+    """Generic last-resort information extractor."""
+
+    _VALID_URL = r'.*'
+    IE_NAME = u'generic'
+
+    def __init__(self, downloader=None):
+        InfoExtractor.__init__(self, downloader)
+
+    def report_download_webpage(self, video_id):
+        """Report webpage download."""
+        self._downloader.to_screen(u'WARNING: Falling back on generic information extractor.')
+        self._downloader.to_screen(u'[generic] %s: Downloading webpage' % video_id)
+
+    def report_extraction(self, video_id):
+        """Report information extraction."""
+        self._downloader.to_screen(u'[generic] %s: Extracting information' % video_id)
+
+    def report_following_redirect(self, new_url):
+        """Report information extraction."""
+        self._downloader.to_screen(u'[redirect] Following redirect to %s' % new_url)
+        
+    def _test_redirect(self, url):
+        """Check if it is a redirect, like url shorteners, in case restart chain."""
+        class HeadRequest(compat_urllib_request.Request):
+            def get_method(self):
+                return "HEAD"
+
+        class HEADRedirectHandler(compat_urllib_request.HTTPRedirectHandler):
+            """
+            Subclass the HTTPRedirectHandler to make it use our 
+            HeadRequest also on the redirected URL
+            """
+            def redirect_request(self, req, fp, code, msg, headers, newurl): 
+                if code in (301, 302, 303, 307):
+                    newurl = newurl.replace(' ', '%20') 
+                    newheaders = dict((k,v) for k,v in req.headers.items()
+                                      if k.lower() not in ("content-length", "content-type"))
+                    return HeadRequest(newurl, 
+                                       headers=newheaders,
+                                       origin_req_host=req.get_origin_req_host(), 
+                                       unverifiable=True) 
+                else: 
+                    raise compat_urllib_error.HTTPError(req.get_full_url(), code, msg, headers, fp) 
+
+        class HTTPMethodFallback(compat_urllib_request.BaseHandler):
+            """
+            Fallback to GET if HEAD is not allowed (405 HTTP error)
+            """
+            def http_error_405(self, req, fp, code, msg, headers): 
+                fp.read()
+                fp.close()
+
+                newheaders = dict((k,v) for k,v in req.headers.items()
+                                  if k.lower() not in ("content-length", "content-type"))
+                return self.parent.open(compat_urllib_request.Request(req.get_full_url(), 
+                                                 headers=newheaders, 
+                                                 origin_req_host=req.get_origin_req_host(), 
+                                                 unverifiable=True))
+
+        # Build our opener
+        opener = compat_urllib_request.OpenerDirector() 
+        for handler in [compat_urllib_request.HTTPHandler, compat_urllib_request.HTTPDefaultErrorHandler,
+                        HTTPMethodFallback, HEADRedirectHandler,
+                        compat_urllib_error.HTTPErrorProcessor, compat_urllib_request.HTTPSHandler]:
+            opener.add_handler(handler())
+
+        response = opener.open(HeadRequest(url))
+        new_url = response.geturl()
+
+        if url == new_url:
+            return False
+
+        self.report_following_redirect(new_url)
+        self._downloader.download([new_url])
+        return True
+
+    def _real_extract(self, url):
+        if self._test_redirect(url): return
+
+        video_id = url.split('/')[-1]
+        request = compat_urllib_request.Request(url)
+        try:
+            self.report_download_webpage(video_id)
+            webpage = compat_urllib_request.urlopen(request).read()
+        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+            self._downloader.trouble(u'ERROR: Unable to retrieve video webpage: %s' % compat_str(err))
+            return
+        except ValueError as err:
+            # since this is the last-resort InfoExtractor, if
+            # this error is thrown, it'll be thrown here
+            self._downloader.trouble(u'ERROR: Invalid URL: %s' % url)
+            return
+
+        self.report_extraction(video_id)
+        # Start with something easy: JW Player in SWFObject
+        mobj = re.search(r'flashvars: [\'"](?:.*&)?file=(http[^\'"&]*)', webpage)
+        if mobj is None:
+            # Broaden the search a little bit
+            mobj = re.search(r'[^A-Za-z0-9]?(?:file|source)=(http[^\'"&]*)', webpage)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: Invalid URL: %s' % url)
+            return
+
+        # It's possible that one of the regexes
+        # matched, but returned an empty group:
+        if mobj.group(1) is None:
+            self._downloader.trouble(u'ERROR: Invalid URL: %s' % url)
+            return
+
+        video_url = compat_urllib_parse.unquote(mobj.group(1))
+        video_id = os.path.basename(video_url)
+
+        # here's a fun little line of code for you:
+        video_extension = os.path.splitext(video_id)[1][1:]
+        video_id = os.path.splitext(video_id)[0]
+
+        # it's tempting to parse this further, but you would
+        # have to take into account all the variations like
+        #   Video Title - Site Name
+        #   Site Name | Video Title
+        #   Video Title - Tagline | Site Name
+        # and so on and so forth; it's just not practical
+        mobj = re.search(r'<title>(.*)</title>', webpage)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: unable to extract title')
+            return
+        video_title = mobj.group(1).decode('utf-8')
+
+        # video uploader is domain name
+        mobj = re.match(r'(?:https?://)?([^/]*)/.*', url)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: unable to extract title')
+            return
+        video_uploader = mobj.group(1).decode('utf-8')
+
+        return [{
+            'id':       video_id.decode('utf-8'),
+            'url':      video_url.decode('utf-8'),
+            'uploader': video_uploader,
+            'upload_date':  None,
+            'title':    video_title,
+            'ext':      video_extension.decode('utf-8'),
+        }]

 
 
 class YoutubeSearchIE(InfoExtractor):
 
 
 class YoutubeSearchIE(InfoExtractor):

-       """Information Extractor for YouTube search queries."""
-       _VALID_URL = r'ytsearch(\d+|all)?:[\s\S]+'
-       _API_URL = 'https://gdata.youtube.com/feeds/api/videos?q=%s&start-index=%i&max-results=50&v=2&alt=jsonc'
-       _max_youtube_results = 1000
-       IE_NAME = u'youtube:search'
-
-       def __init__(self, downloader=None):
-               InfoExtractor.__init__(self, downloader)
-
-       def report_download_page(self, query, pagenum):
-               """Report attempt to download search page with given number."""
-               query = query.decode(preferredencoding())
-               self._downloader.to_screen(u'[youtube] query "%s": Downloading page %s' % (query, pagenum))
-
-       def _real_extract(self, query):
-               mobj = re.match(self._VALID_URL, query)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: invalid search query "%s"' % query)
-                       return
-
-               prefix, query = query.split(':')
-               prefix = prefix[8:]
-               query = query.encode('utf-8')
-               if prefix == '':
-                       self._download_n_results(query, 1)
-                       return
-               elif prefix == 'all':
-                       self._download_n_results(query, self._max_youtube_results)
-                       return
-               else:
-                       try:
-                               n = long(prefix)
-                               if n <= 0:
-                                       self._downloader.trouble(u'ERROR: invalid download number %s for query "%s"' % (n, query))
-                                       return
-                               elif n > self._max_youtube_results:
-                                       self._downloader.to_stderr(u'WARNING: ytsearch returns max %i results (you requested %i)' % (self._max_youtube_results, n))
-                                       n = self._max_youtube_results
-                               self._download_n_results(query, n)
-                               return
-                       except ValueError: # parsing prefix as integer fails
-                               self._download_n_results(query, 1)
-                               return
-
-       def _download_n_results(self, query, n):
-               """Downloads a specified number of results for a query"""
-
-               video_ids = []
-               pagenum = 0
-               limit = n
-
-               while (50 * pagenum) < limit:
-                       self.report_download_page(query, pagenum+1)
-                       result_url = self._API_URL % (urllib.quote_plus(query), (50*pagenum)+1)
-                       request = urllib2.Request(result_url)
-                       try:
-                               data = urllib2.urlopen(request).read()
-                       except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-                               self._downloader.trouble(u'ERROR: unable to download API page: %s' % str(err))
-                               return
-                       api_response = json.loads(data)['data']
-
-                       new_ids = list(video['id'] for video in api_response['items'])
-                       video_ids += new_ids
-
-                       limit = min(n, api_response['totalItems'])
-                       pagenum += 1
-
-               if len(video_ids) > n:
-                       video_ids = video_ids[:n]
-               for id in video_ids:
-                       self._downloader.download(['http://www.youtube.com/watch?v=%s' % id])
-               return
+    """Information Extractor for YouTube search queries."""
+    _VALID_URL = r'ytsearch(\d+|all)?:[\s\S]+'
+    _API_URL = 'https://gdata.youtube.com/feeds/api/videos?q=%s&start-index=%i&max-results=50&v=2&alt=jsonc'
+    _max_youtube_results = 1000
+    IE_NAME = u'youtube:search'
+
+    def __init__(self, downloader=None):
+        InfoExtractor.__init__(self, downloader)
+
+    def report_download_page(self, query, pagenum):
+        """Report attempt to download search page with given number."""
+        query = query.decode(preferredencoding())
+        self._downloader.to_screen(u'[youtube] query "%s": Downloading page %s' % (query, pagenum))
+
+    def _real_extract(self, query):
+        mobj = re.match(self._VALID_URL, query)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: invalid search query "%s"' % query)
+            return
+
+        prefix, query = query.split(':')
+        prefix = prefix[8:]
+        query = query.encode('utf-8')
+        if prefix == '':
+            self._download_n_results(query, 1)
+            return
+        elif prefix == 'all':
+            self._download_n_results(query, self._max_youtube_results)
+            return
+        else:
+            try:
+                n = int(prefix)
+                if n <= 0:
+                    self._downloader.trouble(u'ERROR: invalid download number %s for query "%s"' % (n, query))
+                    return
+                elif n > self._max_youtube_results:
+                    self._downloader.to_stderr(u'WARNING: ytsearch returns max %i results (you requested %i)' % (self._max_youtube_results, n))
+                    n = self._max_youtube_results
+                self._download_n_results(query, n)
+                return
+            except ValueError: # parsing prefix as integer fails
+                self._download_n_results(query, 1)
+                return
+
+    def _download_n_results(self, query, n):
+        """Downloads a specified number of results for a query"""
+
+        video_ids = []
+        pagenum = 0
+        limit = n
+
+        while (50 * pagenum) < limit:
+            self.report_download_page(query, pagenum+1)
+            result_url = self._API_URL % (compat_urllib_parse.quote_plus(query), (50*pagenum)+1)
+            request = compat_urllib_request.Request(result_url)
+            try:
+                data = compat_urllib_request.urlopen(request).read()
+            except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+                self._downloader.trouble(u'ERROR: unable to download API page: %s' % compat_str(err))
+                return
+            api_response = json.loads(data)['data']
+
+            new_ids = list(video['id'] for video in api_response['items'])
+            video_ids += new_ids
+
+            limit = min(n, api_response['totalItems'])
+            pagenum += 1
+
+        if len(video_ids) > n:
+            video_ids = video_ids[:n]
+        for id in video_ids:
+            self._downloader.download(['http://www.youtube.com/watch?v=%s' % id])
+        return

 
 
 class GoogleSearchIE(InfoExtractor):
 
 
 class GoogleSearchIE(InfoExtractor):

-       """Information Extractor for Google Video search queries."""
-       _VALID_URL = r'gvsearch(\d+|all)?:[\s\S]+'
-       _TEMPLATE_URL = 'http://video.google.com/videosearch?q=%s+site:video.google.com&start=%s&hl=en'
-       _VIDEO_INDICATOR = r'<a href="http://video\.google\.com/videoplay\?docid=([^"\&]+)'
-       _MORE_PAGES_INDICATOR = r'class="pn" id="pnnext"'
-       _max_google_results = 1000
-       IE_NAME = u'video.google:search'
-
-       def __init__(self, downloader=None):
-               InfoExtractor.__init__(self, downloader)
-
-       def report_download_page(self, query, pagenum):
-               """Report attempt to download playlist page with given number."""
-               query = query.decode(preferredencoding())
-               self._downloader.to_screen(u'[video.google] query "%s": Downloading page %s' % (query, pagenum))
-
-       def _real_extract(self, query):
-               mobj = re.match(self._VALID_URL, query)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: invalid search query "%s"' % query)
-                       return
-
-               prefix, query = query.split(':')
-               prefix = prefix[8:]
-               query = query.encode('utf-8')
-               if prefix == '':
-                       self._download_n_results(query, 1)
-                       return
-               elif prefix == 'all':
-                       self._download_n_results(query, self._max_google_results)
-                       return
-               else:
-                       try:
-                               n = long(prefix)
-                               if n <= 0:
-                                       self._downloader.trouble(u'ERROR: invalid download number %s for query "%s"' % (n, query))
-                                       return
-                               elif n > self._max_google_results:
-                                       self._downloader.to_stderr(u'WARNING: gvsearch returns max %i results (you requested %i)' % (self._max_google_results, n))
-                                       n = self._max_google_results
-                               self._download_n_results(query, n)
-                               return
-                       except ValueError: # parsing prefix as integer fails
-                               self._download_n_results(query, 1)
-                               return
-
-       def _download_n_results(self, query, n):
-               """Downloads a specified number of results for a query"""
-
-               video_ids = []
-               pagenum = 0
-
-               while True:
-                       self.report_download_page(query, pagenum)
-                       result_url = self._TEMPLATE_URL % (urllib.quote_plus(query), pagenum*10)
-                       request = urllib2.Request(result_url)
-                       try:
-                               page = urllib2.urlopen(request).read()
-                       except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-                               self._downloader.trouble(u'ERROR: unable to download webpage: %s' % str(err))
-                               return
-
-                       # Extract video identifiers
-                       for mobj in re.finditer(self._VIDEO_INDICATOR, page):
-                               video_id = mobj.group(1)
-                               if video_id not in video_ids:
-                                       video_ids.append(video_id)
-                                       if len(video_ids) == n:
-                                               # Specified n videos reached
-                                               for id in video_ids:
-                                                       self._downloader.download(['http://video.google.com/videoplay?docid=%s' % id])
-                                               return
-
-                       if re.search(self._MORE_PAGES_INDICATOR, page) is None:
-                               for id in video_ids:
-                                       self._downloader.download(['http://video.google.com/videoplay?docid=%s' % id])
-                               return
-
-                       pagenum = pagenum + 1
+    """Information Extractor for Google Video search queries."""
+    _VALID_URL = r'gvsearch(\d+|all)?:[\s\S]+'
+    _TEMPLATE_URL = 'http://video.google.com/videosearch?q=%s+site:video.google.com&start=%s&hl=en'
+    _VIDEO_INDICATOR = r'<a href="http://video\.google\.com/videoplay\?docid=([^"\&]+)'
+    _MORE_PAGES_INDICATOR = r'class="pn" id="pnnext"'
+    _max_google_results = 1000
+    IE_NAME = u'video.google:search'
+
+    def __init__(self, downloader=None):
+        InfoExtractor.__init__(self, downloader)
+
+    def report_download_page(self, query, pagenum):
+        """Report attempt to download playlist page with given number."""
+        query = query.decode(preferredencoding())
+        self._downloader.to_screen(u'[video.google] query "%s": Downloading page %s' % (query, pagenum))
+
+    def _real_extract(self, query):
+        mobj = re.match(self._VALID_URL, query)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: invalid search query "%s"' % query)
+            return
+
+        prefix, query = query.split(':')
+        prefix = prefix[8:]
+        query = query.encode('utf-8')
+        if prefix == '':
+            self._download_n_results(query, 1)
+            return
+        elif prefix == 'all':
+            self._download_n_results(query, self._max_google_results)
+            return
+        else:
+            try:
+                n = int(prefix)
+                if n <= 0:
+                    self._downloader.trouble(u'ERROR: invalid download number %s for query "%s"' % (n, query))
+                    return
+                elif n > self._max_google_results:
+                    self._downloader.to_stderr(u'WARNING: gvsearch returns max %i results (you requested %i)' % (self._max_google_results, n))
+                    n = self._max_google_results
+                self._download_n_results(query, n)
+                return
+            except ValueError: # parsing prefix as integer fails
+                self._download_n_results(query, 1)
+                return
+
+    def _download_n_results(self, query, n):
+        """Downloads a specified number of results for a query"""
+
+        video_ids = []
+        pagenum = 0
+
+        while True:
+            self.report_download_page(query, pagenum)
+            result_url = self._TEMPLATE_URL % (compat_urllib_parse.quote_plus(query), pagenum*10)
+            request = compat_urllib_request.Request(result_url)
+            try:
+                page = compat_urllib_request.urlopen(request).read()
+            except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+                self._downloader.trouble(u'ERROR: unable to download webpage: %s' % compat_str(err))
+                return
+
+            # Extract video identifiers
+            for mobj in re.finditer(self._VIDEO_INDICATOR, page):
+                video_id = mobj.group(1)
+                if video_id not in video_ids:
+                    video_ids.append(video_id)
+                    if len(video_ids) == n:
+                        # Specified n videos reached
+                        for id in video_ids:
+                            self._downloader.download(['http://video.google.com/videoplay?docid=%s' % id])
+                        return
+
+            if re.search(self._MORE_PAGES_INDICATOR, page) is None:
+                for id in video_ids:
+                    self._downloader.download(['http://video.google.com/videoplay?docid=%s' % id])
+                return
+
+            pagenum = pagenum + 1

 
 
 class YahooSearchIE(InfoExtractor):
 
 
 class YahooSearchIE(InfoExtractor):

-       """Information Extractor for Yahoo! Video search queries."""
-       _VALID_URL = r'yvsearch(\d+|all)?:[\s\S]+'
-       _TEMPLATE_URL = 'http://video.yahoo.com/search/?p=%s&o=%s'
-       _VIDEO_INDICATOR = r'href="http://video\.yahoo\.com/watch/([0-9]+/[0-9]+)"'
-       _MORE_PAGES_INDICATOR = r'\s*Next'
-       _max_yahoo_results = 1000
-       IE_NAME = u'video.yahoo:search'
-
-       def __init__(self, downloader=None):
-               InfoExtractor.__init__(self, downloader)
-
-       def report_download_page(self, query, pagenum):
-               """Report attempt to download playlist page with given number."""
-               query = query.decode(preferredencoding())
-               self._downloader.to_screen(u'[video.yahoo] query "%s": Downloading page %s' % (query, pagenum))
-
-       def _real_extract(self, query):
-               mobj = re.match(self._VALID_URL, query)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: invalid search query "%s"' % query)
-                       return
-
-               prefix, query = query.split(':')
-               prefix = prefix[8:]
-               query = query.encode('utf-8')
-               if prefix == '':
-                       self._download_n_results(query, 1)
-                       return
-               elif prefix == 'all':
-                       self._download_n_results(query, self._max_yahoo_results)
-                       return
-               else:
-                       try:
-                               n = long(prefix)
-                               if n <= 0:
-                                       self._downloader.trouble(u'ERROR: invalid download number %s for query "%s"' % (n, query))
-                                       return
-                               elif n > self._max_yahoo_results:
-                                       self._downloader.to_stderr(u'WARNING: yvsearch returns max %i results (you requested %i)' % (self._max_yahoo_results, n))
-                                       n = self._max_yahoo_results
-                               self._download_n_results(query, n)
-                               return
-                       except ValueError: # parsing prefix as integer fails
-                               self._download_n_results(query, 1)
-                               return
-
-       def _download_n_results(self, query, n):
-               """Downloads a specified number of results for a query"""
-
-               video_ids = []
-               already_seen = set()
-               pagenum = 1
-
-               while True:
-                       self.report_download_page(query, pagenum)
-                       result_url = self._TEMPLATE_URL % (urllib.quote_plus(query), pagenum)
-                       request = urllib2.Request(result_url)
-                       try:
-                               page = urllib2.urlopen(request).read()
-                       except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-                               self._downloader.trouble(u'ERROR: unable to download webpage: %s' % str(err))
-                               return
-
-                       # Extract video identifiers
-                       for mobj in re.finditer(self._VIDEO_INDICATOR, page):
-                               video_id = mobj.group(1)
-                               if video_id not in already_seen:
-                                       video_ids.append(video_id)
-                                       already_seen.add(video_id)
-                                       if len(video_ids) == n:
-                                               # Specified n videos reached
-                                               for id in video_ids:
-                                                       self._downloader.download(['http://video.yahoo.com/watch/%s' % id])
-                                               return
-
-                       if re.search(self._MORE_PAGES_INDICATOR, page) is None:
-                               for id in video_ids:
-                                       self._downloader.download(['http://video.yahoo.com/watch/%s' % id])
-                               return
-
-                       pagenum = pagenum + 1
+    """Information Extractor for Yahoo! Video search queries."""
+    _VALID_URL = r'yvsearch(\d+|all)?:[\s\S]+'
+    _TEMPLATE_URL = 'http://video.yahoo.com/search/?p=%s&o=%s'
+    _VIDEO_INDICATOR = r'href="http://video\.yahoo\.com/watch/([0-9]+/[0-9]+)"'
+    _MORE_PAGES_INDICATOR = r'\s*Next'
+    _max_yahoo_results = 1000
+    IE_NAME = u'video.yahoo:search'
+
+    def __init__(self, downloader=None):
+        InfoExtractor.__init__(self, downloader)
+
+    def report_download_page(self, query, pagenum):
+        """Report attempt to download playlist page with given number."""
+        query = query.decode(preferredencoding())
+        self._downloader.to_screen(u'[video.yahoo] query "%s": Downloading page %s' % (query, pagenum))
+
+    def _real_extract(self, query):
+        mobj = re.match(self._VALID_URL, query)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: invalid search query "%s"' % query)
+            return
+
+        prefix, query = query.split(':')
+        prefix = prefix[8:]
+        query = query.encode('utf-8')
+        if prefix == '':
+            self._download_n_results(query, 1)
+            return
+        elif prefix == 'all':
+            self._download_n_results(query, self._max_yahoo_results)
+            return
+        else:
+            try:
+                n = int(prefix)
+                if n <= 0:
+                    self._downloader.trouble(u'ERROR: invalid download number %s for query "%s"' % (n, query))
+                    return
+                elif n > self._max_yahoo_results:
+                    self._downloader.to_stderr(u'WARNING: yvsearch returns max %i results (you requested %i)' % (self._max_yahoo_results, n))
+                    n = self._max_yahoo_results
+                self._download_n_results(query, n)
+                return
+            except ValueError: # parsing prefix as integer fails
+                self._download_n_results(query, 1)
+                return
+
+    def _download_n_results(self, query, n):
+        """Downloads a specified number of results for a query"""
+
+        video_ids = []
+        already_seen = set()
+        pagenum = 1
+
+        while True:
+            self.report_download_page(query, pagenum)
+            result_url = self._TEMPLATE_URL % (compat_urllib_parse.quote_plus(query), pagenum)
+            request = compat_urllib_request.Request(result_url)
+            try:
+                page = compat_urllib_request.urlopen(request).read()
+            except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+                self._downloader.trouble(u'ERROR: unable to download webpage: %s' % compat_str(err))
+                return
+
+            # Extract video identifiers
+            for mobj in re.finditer(self._VIDEO_INDICATOR, page):
+                video_id = mobj.group(1)
+                if video_id not in already_seen:
+                    video_ids.append(video_id)
+                    already_seen.add(video_id)
+                    if len(video_ids) == n:
+                        # Specified n videos reached
+                        for id in video_ids:
+                            self._downloader.download(['http://video.yahoo.com/watch/%s' % id])
+                        return
+
+            if re.search(self._MORE_PAGES_INDICATOR, page) is None:
+                for id in video_ids:
+                    self._downloader.download(['http://video.yahoo.com/watch/%s' % id])
+                return
+
+            pagenum = pagenum + 1

 
 
 class YoutubePlaylistIE(InfoExtractor):
 
 
 class YoutubePlaylistIE(InfoExtractor):

-       """Information Extractor for YouTube playlists."""
-
-       _VALID_URL = r'(?:https?://)?(?:\w+\.)?youtube\.com/(?:(?:course|view_play_list|my_playlists|artist|playlist)\?.*?(p|a|list)=|user/.*?/user/|p/|user/.*?#[pg]/c/)(?:PL)?([0-9A-Za-z-_]+)(?:/.*?/([0-9A-Za-z_-]+))?.*'
-       _TEMPLATE_URL = 'http://www.youtube.com/%s?%s=%s&page=%s&gl=US&hl=en'
-       _VIDEO_INDICATOR_TEMPLATE = r'/watch\?v=(.+?)&amp;list=(PL)?%s&'
-       _MORE_PAGES_INDICATOR = r'yt-uix-pager-next'
-       IE_NAME = u'youtube:playlist'
-
-       def __init__(self, downloader=None):
-               InfoExtractor.__init__(self, downloader)
-
-       def report_download_page(self, playlist_id, pagenum):
-               """Report attempt to download playlist page with given number."""
-               self._downloader.to_screen(u'[youtube] PL %s: Downloading page #%s' % (playlist_id, pagenum))
-
-       def _real_extract(self, url):
-               # Extract playlist id
-               mobj = re.match(self._VALID_URL, url)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: invalid url: %s' % url)
-                       return
-
-               # Single video case
-               if mobj.group(3) is not None:
-                       self._downloader.download([mobj.group(3)])
-                       return
-
-               # Download playlist pages
-               # prefix is 'p' as default for playlists but there are other types that need extra care
-               playlist_prefix = mobj.group(1)
-               if playlist_prefix == 'a':
-                       playlist_access = 'artist'
-               else:
-                       playlist_prefix = 'p'
-                       playlist_access = 'view_play_list'
-               playlist_id = mobj.group(2)
-               video_ids = []
-               pagenum = 1
-
-               while True:
-                       self.report_download_page(playlist_id, pagenum)
-                       url = self._TEMPLATE_URL % (playlist_access, playlist_prefix, playlist_id, pagenum)
-                       request = urllib2.Request(url)
-                       try:
-                               page = urllib2.urlopen(request).read()
-                       except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-                               self._downloader.trouble(u'ERROR: unable to download webpage: %s' % str(err))
-                               return
-
-                       # Extract video identifiers
-                       ids_in_page = []
-                       for mobj in re.finditer(self._VIDEO_INDICATOR_TEMPLATE % playlist_id, page):
-                               if mobj.group(1) not in ids_in_page:
-                                       ids_in_page.append(mobj.group(1))
-                       video_ids.extend(ids_in_page)
-
-                       if re.search(self._MORE_PAGES_INDICATOR, page) is None:
-                               break
-                       pagenum = pagenum + 1
-
-               playliststart = self._downloader.params.get('playliststart', 1) - 1
-               playlistend = self._downloader.params.get('playlistend', -1)
-               if playlistend == -1:
-                       video_ids = video_ids[playliststart:]
-               else:
-                       video_ids = video_ids[playliststart:playlistend]
-
-               for id in video_ids:
-                       self._downloader.download(['http://www.youtube.com/watch?v=%s' % id])
-               return
+    """Information Extractor for YouTube playlists."""
+
+    _VALID_URL = r'(?:(?:https?://)?(?:\w+\.)?youtube\.com/(?:(?:course|view_play_list|my_playlists|artist|playlist)\?.*?(p|a|list)=|user/.*?/user/|p/|user/.*?#[pg]/c/)(?:PL|EC)?|PL|EC)([0-9A-Za-z-_]{10,})(?:/.*?/([0-9A-Za-z_-]+))?.*'
+    _TEMPLATE_URL = 'http://www.youtube.com/%s?%s=%s&page=%s&gl=US&hl=en'
+    _VIDEO_INDICATOR_TEMPLATE = r'/watch\?v=(.+?)&amp;([^&"]+&amp;)*list=.*?%s'
+    _MORE_PAGES_INDICATOR = u"Next \N{RIGHT-POINTING DOUBLE ANGLE QUOTATION MARK}"
+    IE_NAME = u'youtube:playlist'
+
+    def __init__(self, downloader=None):
+        InfoExtractor.__init__(self, downloader)
+
+    def report_download_page(self, playlist_id, pagenum):
+        """Report attempt to download playlist page with given number."""
+        self._downloader.to_screen(u'[youtube] PL %s: Downloading page #%s' % (playlist_id, pagenum))
+
+    def _real_extract(self, url):
+        # Extract playlist id
+        mobj = re.match(self._VALID_URL, url)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: invalid url: %s' % url)
+            return
+
+        # Single video case
+        if mobj.group(3) is not None:
+            self._downloader.download([mobj.group(3)])
+            return
+
+        # Download playlist pages
+        # prefix is 'p' as default for playlists but there are other types that need extra care
+        playlist_prefix = mobj.group(1)
+        if playlist_prefix == 'a':
+            playlist_access = 'artist'
+        else:
+            playlist_prefix = 'p'
+            playlist_access = 'view_play_list'
+        playlist_id = mobj.group(2)
+        video_ids = []
+        pagenum = 1
+
+        while True:
+            self.report_download_page(playlist_id, pagenum)
+            url = self._TEMPLATE_URL % (playlist_access, playlist_prefix, playlist_id, pagenum)
+            request = compat_urllib_request.Request(url)
+            try:
+                page = compat_urllib_request.urlopen(request).read().decode('utf8')
+            except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+                self._downloader.trouble(u'ERROR: unable to download webpage: %s' % compat_str(err))
+                return
+
+            # Extract video identifiers
+            ids_in_page = []
+            for mobj in re.finditer(self._VIDEO_INDICATOR_TEMPLATE % playlist_id, page):
+                if mobj.group(1) not in ids_in_page:
+                    ids_in_page.append(mobj.group(1))
+            video_ids.extend(ids_in_page)
+
+            if self._MORE_PAGES_INDICATOR not in page:
+                break
+            pagenum = pagenum + 1
+
+        total = len(video_ids)
+
+        playliststart = self._downloader.params.get('playliststart', 1) - 1
+        playlistend = self._downloader.params.get('playlistend', -1)
+        if playlistend == -1:
+            video_ids = video_ids[playliststart:]
+        else:
+            video_ids = video_ids[playliststart:playlistend]
+
+        if len(video_ids) == total:
+            self._downloader.to_screen(u'[youtube] PL %s: Found %i videos' % (playlist_id, total))
+        else:
+            self._downloader.to_screen(u'[youtube] PL %s: Found %i videos, downloading %i' % (playlist_id, total, len(video_ids)))
+
+        for id in video_ids:
+            self._downloader.download(['http://www.youtube.com/watch?v=%s' % id])
+        return
+
+
+class YoutubeChannelIE(InfoExtractor):
+    """Information Extractor for YouTube channels."""
+
+    _VALID_URL = r"^(?:https?://)?(?:youtu\.be|(?:\w+\.)?youtube(?:-nocookie)?\.com)/channel/([0-9A-Za-z_-]+)(?:/.*)?$"
+    _TEMPLATE_URL = 'http://www.youtube.com/channel/%s/videos?sort=da&flow=list&view=0&page=%s&gl=US&hl=en'
+    _MORE_PAGES_INDICATOR = u"Next \N{RIGHT-POINTING DOUBLE ANGLE QUOTATION MARK}"
+    IE_NAME = u'youtube:channel'
+
+    def report_download_page(self, channel_id, pagenum):
+        """Report attempt to download channel page with given number."""
+        self._downloader.to_screen(u'[youtube] Channel %s: Downloading page #%s' % (channel_id, pagenum))
+
+    def _real_extract(self, url):
+        # Extract channel id
+        mobj = re.match(self._VALID_URL, url)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: invalid url: %s' % url)
+            return
+
+        # Download channel pages
+        channel_id = mobj.group(1)
+        video_ids = []
+        pagenum = 1
+
+        while True:
+            self.report_download_page(channel_id, pagenum)
+            url = self._TEMPLATE_URL % (channel_id, pagenum)
+            request = compat_urllib_request.Request(url)
+            try:
+                page = compat_urllib_request.urlopen(request).read().decode('utf8')
+            except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+                self._downloader.trouble(u'ERROR: unable to download webpage: %s' % compat_str(err))
+                return
+
+            # Extract video identifiers
+            ids_in_page = []
+            for mobj in re.finditer(r'href="/watch\?v=([0-9A-Za-z_-]+)&', page):
+                if mobj.group(1) not in ids_in_page:
+                    ids_in_page.append(mobj.group(1))
+            video_ids.extend(ids_in_page)
+
+            if self._MORE_PAGES_INDICATOR not in page:
+                break
+            pagenum = pagenum + 1
+
+        self._downloader.to_screen(u'[youtube] Channel %s: Found %i videos' % (channel_id, len(video_ids)))
+
+        for id in video_ids:
+            self._downloader.download(['http://www.youtube.com/watch?v=%s' % id])
+        return

 
 
 class YoutubeUserIE(InfoExtractor):
 
 
 class YoutubeUserIE(InfoExtractor):

-       """Information Extractor for YouTube users."""
+    """Information Extractor for YouTube users."""

 
 

-       _VALID_URL = r'(?:(?:(?:https?://)?(?:\w+\.)?youtube\.com/user/)|ytuser:)([A-Za-z0-9_-]+)'
-       _TEMPLATE_URL = 'http://gdata.youtube.com/feeds/api/users/%s'
-       _GDATA_PAGE_SIZE = 50
-       _GDATA_URL = 'http://gdata.youtube.com/feeds/api/users/%s/uploads?max-results=%d&start-index=%d'
-       _VIDEO_INDICATOR = r'/watch\?v=(.+?)[\<&]'
-       IE_NAME = u'youtube:user'
+    _VALID_URL = r'(?:(?:(?:https?://)?(?:\w+\.)?youtube\.com/user/)|ytuser:)([A-Za-z0-9_-]+)'
+    _TEMPLATE_URL = 'http://gdata.youtube.com/feeds/api/users/%s'
+    _GDATA_PAGE_SIZE = 50
+    _GDATA_URL = 'http://gdata.youtube.com/feeds/api/users/%s/uploads?max-results=%d&start-index=%d'
+    _VIDEO_INDICATOR = r'/watch\?v=(.+?)[\<&]'
+    IE_NAME = u'youtube:user'

 
 

-       def __init__(self, downloader=None):
-               InfoExtractor.__init__(self, downloader)
+    def __init__(self, downloader=None):
+        InfoExtractor.__init__(self, downloader)

 
 

-       def report_download_page(self, username, start_index):
-               """Report attempt to download user page."""
-               self._downloader.to_screen(u'[youtube] user %s: Downloading video ids from %d to %d' %
-                               (username, start_index, start_index + self._GDATA_PAGE_SIZE))
+    def report_download_page(self, username, start_index):
+        """Report attempt to download user page."""
+        self._downloader.to_screen(u'[youtube] user %s: Downloading video ids from %d to %d' %
+                (username, start_index, start_index + self._GDATA_PAGE_SIZE))

 
 

-       def _real_extract(self, url):
-               # Extract username
-               mobj = re.match(self._VALID_URL, url)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: invalid url: %s' % url)
-                       return
+    def _real_extract(self, url):
+        # Extract username
+        mobj = re.match(self._VALID_URL, url)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: invalid url: %s' % url)
+            return

 
 

-               username = mobj.group(1)
+        username = mobj.group(1)

 
 

-               # Download video ids using YouTube Data API. Result size per
-               # query is limited (currently to 50 videos) so we need to query
-               # page by page until there are no video ids - it means we got
-               # all of them.
+        # Download video ids using YouTube Data API. Result size per
+        # query is limited (currently to 50 videos) so we need to query
+        # page by page until there are no video ids - it means we got
+        # all of them.

 
 

-               video_ids = []
-               pagenum = 0
+        video_ids = []
+        pagenum = 0

 
 

-               while True:
-                       start_index = pagenum * self._GDATA_PAGE_SIZE + 1
-                       self.report_download_page(username, start_index)
+        while True:
+            start_index = pagenum * self._GDATA_PAGE_SIZE + 1
+            self.report_download_page(username, start_index)

 
 

-                       request = urllib2.Request(self._GDATA_URL % (username, self._GDATA_PAGE_SIZE, start_index))
+            request = compat_urllib_request.Request(self._GDATA_URL % (username, self._GDATA_PAGE_SIZE, start_index))

 
 

-                       try:
-                               page = urllib2.urlopen(request).read()
-                       except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-                               self._downloader.trouble(u'ERROR: unable to download webpage: %s' % str(err))
-                               return
+            try:
+                page = compat_urllib_request.urlopen(request).read()
+            except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+                self._downloader.trouble(u'ERROR: unable to download webpage: %s' % compat_str(err))
+                return

 
 

-                       # Extract video identifiers
-                       ids_in_page = []
+            # Extract video identifiers
+            ids_in_page = []

 
 

-                       for mobj in re.finditer(self._VIDEO_INDICATOR, page):
-                               if mobj.group(1) not in ids_in_page:
-                                       ids_in_page.append(mobj.group(1))
+            for mobj in re.finditer(self._VIDEO_INDICATOR, page):
+                if mobj.group(1) not in ids_in_page:
+                    ids_in_page.append(mobj.group(1))

 
 

-                       video_ids.extend(ids_in_page)
+            video_ids.extend(ids_in_page)

 
 

-                       # A little optimization - if current page is not
-                       # "full", ie. does not contain PAGE_SIZE video ids then
-                       # we can assume that this page is the last one - there
-                       # are no more ids on further pages - no need to query
-                       # again.
+            # A little optimization - if current page is not
+            # "full", ie. does not contain PAGE_SIZE video ids then
+            # we can assume that this page is the last one - there
+            # are no more ids on further pages - no need to query
+            # again.

 
 

-                       if len(ids_in_page) < self._GDATA_PAGE_SIZE:
-                               break
+            if len(ids_in_page) < self._GDATA_PAGE_SIZE:
+                break

 
 

-                       pagenum += 1
+            pagenum += 1

 
 

-               all_ids_count = len(video_ids)
-               playliststart = self._downloader.params.get('playliststart', 1) - 1
-               playlistend = self._downloader.params.get('playlistend', -1)
+        all_ids_count = len(video_ids)
+        playliststart = self._downloader.params.get('playliststart', 1) - 1
+        playlistend = self._downloader.params.get('playlistend', -1)

 
 

-               if playlistend == -1:
-                       video_ids = video_ids[playliststart:]
-               else:
-                       video_ids = video_ids[playliststart:playlistend]
+        if playlistend == -1:
+            video_ids = video_ids[playliststart:]
+        else:
+            video_ids = video_ids[playliststart:playlistend]

 
 

-               self._downloader.to_screen(u"[youtube] user %s: Collected %d video ids (downloading %d of them)" %
-                               (username, all_ids_count, len(video_ids)))
+        self._downloader.to_screen(u"[youtube] user %s: Collected %d video ids (downloading %d of them)" %
+                (username, all_ids_count, len(video_ids)))

 
 

-               for video_id in video_ids:
-                       self._downloader.download(['http://www.youtube.com/watch?v=%s' % video_id])
+        for video_id in video_ids:
+            self._downloader.download(['http://www.youtube.com/watch?v=%s' % video_id])

 
 
 class BlipTVUserIE(InfoExtractor):
 
 
 class BlipTVUserIE(InfoExtractor):

-       """Information Extractor for blip.tv users."""
+    """Information Extractor for blip.tv users."""

 
 

-       _VALID_URL = r'(?:(?:(?:https?://)?(?:\w+\.)?blip\.tv/)|bliptvuser:)([^/]+)/*$'
-       _PAGE_SIZE = 12
-       IE_NAME = u'blip.tv:user'
+    _VALID_URL = r'(?:(?:(?:https?://)?(?:\w+\.)?blip\.tv/)|bliptvuser:)([^/]+)/*$'
+    _PAGE_SIZE = 12
+    IE_NAME = u'blip.tv:user'

 
 

-       def __init__(self, downloader=None):
-               InfoExtractor.__init__(self, downloader)
+    def __init__(self, downloader=None):
+        InfoExtractor.__init__(self, downloader)

 
 

-       def report_download_page(self, username, pagenum):
-               """Report attempt to download user page."""
-               self._downloader.to_screen(u'[%s] user %s: Downloading video ids from page %d' %
-                               (self.IE_NAME, username, pagenum))
+    def report_download_page(self, username, pagenum):
+        """Report attempt to download user page."""
+        self._downloader.to_screen(u'[%s] user %s: Downloading video ids from page %d' %
+                (self.IE_NAME, username, pagenum))

 
 

-       def _real_extract(self, url):
-               # Extract username
-               mobj = re.match(self._VALID_URL, url)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: invalid url: %s' % url)
-                       return
+    def _real_extract(self, url):
+        # Extract username
+        mobj = re.match(self._VALID_URL, url)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: invalid url: %s' % url)
+            return

 
 

-               username = mobj.group(1)
+        username = mobj.group(1)

 
 

-               page_base = 'http://m.blip.tv/pr/show_get_full_episode_list?users_id=%s&lite=0&esi=1'
+        page_base = 'http://m.blip.tv/pr/show_get_full_episode_list?users_id=%s&lite=0&esi=1'

 
 

-               request = urllib2.Request(url)
+        request = compat_urllib_request.Request(url)

 
 

-               try:
-                       page = urllib2.urlopen(request).read().decode('utf-8')
-                       mobj = re.search(r'data-users-id="([^"]+)"', page)
-                       page_base = page_base % mobj.group(1)
-               except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-                       self._downloader.trouble(u'ERROR: unable to download webpage: %s' % str(err))
-                       return
+        try:
+            page = compat_urllib_request.urlopen(request).read().decode('utf-8')
+            mobj = re.search(r'data-users-id="([^"]+)"', page)
+            page_base = page_base % mobj.group(1)
+        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+            self._downloader.trouble(u'ERROR: unable to download webpage: %s' % compat_str(err))
+            return

 
 
 
 

-               # Download video ids using BlipTV Ajax calls. Result size per
-               # query is limited (currently to 12 videos) so we need to query
-               # page by page until there are no video ids - it means we got
-               # all of them.
+        # Download video ids using BlipTV Ajax calls. Result size per
+        # query is limited (currently to 12 videos) so we need to query
+        # page by page until there are no video ids - it means we got
+        # all of them.

 
 

-               video_ids = []
-               pagenum = 1
+        video_ids = []
+        pagenum = 1

 
 

-               while True:
-                       self.report_download_page(username, pagenum)
+        while True:
+            self.report_download_page(username, pagenum)

 
 

-                       request = urllib2.Request( page_base + "&page=" + str(pagenum) )
+            request = compat_urllib_request.Request( page_base + "&page=" + str(pagenum) )

 
 

-                       try:
-                               page = urllib2.urlopen(request).read().decode('utf-8')
-                       except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-                               self._downloader.trouble(u'ERROR: unable to download webpage: %s' % str(err))
-                               return
+            try:
+                page = compat_urllib_request.urlopen(request).read().decode('utf-8')
+            except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+                self._downloader.trouble(u'ERROR: unable to download webpage: %s' % str(err))
+                return

 
 

-                       # Extract video identifiers
-                       ids_in_page = []
+            # Extract video identifiers
+            ids_in_page = []

 
 

-                       for mobj in re.finditer(r'href="/([^"]+)"', page):
-                               if mobj.group(1) not in ids_in_page:
-                                       ids_in_page.append(unescapeHTML(mobj.group(1)))
+            for mobj in re.finditer(r'href="/([^"]+)"', page):
+                if mobj.group(1) not in ids_in_page:
+                    ids_in_page.append(unescapeHTML(mobj.group(1)))

 
 

-                       video_ids.extend(ids_in_page)
+            video_ids.extend(ids_in_page)

 
 

-                       # A little optimization - if current page is not
-                       # "full", ie. does not contain PAGE_SIZE video ids then
-                       # we can assume that this page is the last one - there
-                       # are no more ids on further pages - no need to query
-                       # again.
+            # A little optimization - if current page is not
+            # "full", ie. does not contain PAGE_SIZE video ids then
+            # we can assume that this page is the last one - there
+            # are no more ids on further pages - no need to query
+            # again.

 
 

-                       if len(ids_in_page) < self._PAGE_SIZE:
-                               break
+            if len(ids_in_page) < self._PAGE_SIZE:
+                break

 
 

-                       pagenum += 1
+            pagenum += 1

 
 

-               all_ids_count = len(video_ids)
-               playliststart = self._downloader.params.get('playliststart', 1) - 1
-               playlistend = self._downloader.params.get('playlistend', -1)
+        all_ids_count = len(video_ids)
+        playliststart = self._downloader.params.get('playliststart', 1) - 1
+        playlistend = self._downloader.params.get('playlistend', -1)

 
 

-               if playlistend == -1:
-                       video_ids = video_ids[playliststart:]
-               else:
-                       video_ids = video_ids[playliststart:playlistend]
+        if playlistend == -1:
+            video_ids = video_ids[playliststart:]
+        else:
+            video_ids = video_ids[playliststart:playlistend]

 
 

-               self._downloader.to_screen(u"[%s] user %s: Collected %d video ids (downloading %d of them)" %
-                               (self.IE_NAME, username, all_ids_count, len(video_ids)))
+        self._downloader.to_screen(u"[%s] user %s: Collected %d video ids (downloading %d of them)" %
+                (self.IE_NAME, username, all_ids_count, len(video_ids)))

 
 

-               for video_id in video_ids:
-                       self._downloader.download([u'http://blip.tv/'+video_id])
+        for video_id in video_ids:
+            self._downloader.download([u'http://blip.tv/'+video_id])

 
 
 class DepositFilesIE(InfoExtractor):
 
 
 class DepositFilesIE(InfoExtractor):

-       """Information extractor for depositfiles.com"""
-
-       _VALID_URL = r'(?:http://)?(?:\w+\.)?depositfiles\.com/(?:../(?#locale))?files/(.+)'
-       IE_NAME = u'DepositFiles'
-
-       def __init__(self, downloader=None):
-               InfoExtractor.__init__(self, downloader)
-
-       def report_download_webpage(self, file_id):
-               """Report webpage download."""
-               self._downloader.to_screen(u'[DepositFiles] %s: Downloading webpage' % file_id)
-
-       def report_extraction(self, file_id):
-               """Report information extraction."""
-               self._downloader.to_screen(u'[DepositFiles] %s: Extracting information' % file_id)
-
-       def _real_extract(self, url):
-               file_id = url.split('/')[-1]
-               # Rebuild url in english locale
-               url = 'http://depositfiles.com/en/files/' + file_id
-
-               # Retrieve file webpage with 'Free download' button pressed
-               free_download_indication = { 'gateway_result' : '1' }
-               request = urllib2.Request(url, urllib.urlencode(free_download_indication))
-               try:
-                       self.report_download_webpage(file_id)
-                       webpage = urllib2.urlopen(request).read()
-               except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-                       self._downloader.trouble(u'ERROR: Unable to retrieve file webpage: %s' % str(err))
-                       return
-
-               # Search for the real file URL
-               mobj = re.search(r'<form action="(http://fileshare.+?)"', webpage)
-               if (mobj is None) or (mobj.group(1) is None):
-                       # Try to figure out reason of the error.
-                       mobj = re.search(r'<strong>(Attention.*?)</strong>', webpage, re.DOTALL)
-                       if (mobj is not None) and (mobj.group(1) is not None):
-                               restriction_message = re.sub('\s+', ' ', mobj.group(1)).strip()
-                               self._downloader.trouble(u'ERROR: %s' % restriction_message)
-                       else:
-                               self._downloader.trouble(u'ERROR: unable to extract download URL from: %s' % url)
-                       return
-
-               file_url = mobj.group(1)
-               file_extension = os.path.splitext(file_url)[1][1:]
-
-               # Search for file title
-               mobj = re.search(r'<b title="(.*?)">', webpage)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: unable to extract title')
-                       return
-               file_title = mobj.group(1).decode('utf-8')
-
-               return [{
-                       'id':           file_id.decode('utf-8'),
-                       'url':          file_url.decode('utf-8'),
-                       'uploader':     u'NA',
-                       'upload_date':  u'NA',
-                       'title':        file_title,
-                       'ext':          file_extension.decode('utf-8'),
-                       'format':       u'NA',
-                       'player_url':   None,
-               }]
+    """Information extractor for depositfiles.com"""
+
+    _VALID_URL = r'(?:http://)?(?:\w+\.)?depositfiles\.com/(?:../(?#locale))?files/(.+)'
+    IE_NAME = u'DepositFiles'
+
+    def __init__(self, downloader=None):
+        InfoExtractor.__init__(self, downloader)
+
+    def report_download_webpage(self, file_id):
+        """Report webpage download."""
+        self._downloader.to_screen(u'[DepositFiles] %s: Downloading webpage' % file_id)
+
+    def report_extraction(self, file_id):
+        """Report information extraction."""
+        self._downloader.to_screen(u'[DepositFiles] %s: Extracting information' % file_id)
+
+    def _real_extract(self, url):
+        file_id = url.split('/')[-1]
+        # Rebuild url in english locale
+        url = 'http://depositfiles.com/en/files/' + file_id
+
+        # Retrieve file webpage with 'Free download' button pressed
+        free_download_indication = { 'gateway_result' : '1' }
+        request = compat_urllib_request.Request(url, compat_urllib_parse.urlencode(free_download_indication))
+        try:
+            self.report_download_webpage(file_id)
+            webpage = compat_urllib_request.urlopen(request).read()
+        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+            self._downloader.trouble(u'ERROR: Unable to retrieve file webpage: %s' % compat_str(err))
+            return
+
+        # Search for the real file URL
+        mobj = re.search(r'<form action="(http://fileshare.+?)"', webpage)
+        if (mobj is None) or (mobj.group(1) is None):
+            # Try to figure out reason of the error.
+            mobj = re.search(r'<strong>(Attention.*?)</strong>', webpage, re.DOTALL)
+            if (mobj is not None) and (mobj.group(1) is not None):
+                restriction_message = re.sub('\s+', ' ', mobj.group(1)).strip()
+                self._downloader.trouble(u'ERROR: %s' % restriction_message)
+            else:
+                self._downloader.trouble(u'ERROR: unable to extract download URL from: %s' % url)
+            return
+
+        file_url = mobj.group(1)
+        file_extension = os.path.splitext(file_url)[1][1:]
+
+        # Search for file title
+        mobj = re.search(r'<b title="(.*?)">', webpage)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: unable to extract title')
+            return
+        file_title = mobj.group(1).decode('utf-8')
+
+        return [{
+            'id':       file_id.decode('utf-8'),
+            'url':      file_url.decode('utf-8'),
+            'uploader': None,
+            'upload_date':  None,
+            'title':    file_title,
+            'ext':      file_extension.decode('utf-8'),
+        }]

 
 
 class FacebookIE(InfoExtractor):
 
 
 class FacebookIE(InfoExtractor):

-       """Information Extractor for Facebook"""
-
-       _VALID_URL = r'^(?:https?://)?(?:\w+\.)?facebook\.com/(?:video/video|photo)\.php\?(?:.*?)v=(?P<ID>\d+)(?:.*)'
-       _LOGIN_URL = 'https://login.facebook.com/login.php?m&next=http%3A%2F%2Fm.facebook.com%2Fhome.php&'
-       _NETRC_MACHINE = 'facebook'
-       _available_formats = ['video', 'highqual', 'lowqual']
-       _video_extensions = {
-               'video': 'mp4',
-               'highqual': 'mp4',
-               'lowqual': 'mp4',
-       }
-       IE_NAME = u'facebook'
-
-       def __init__(self, downloader=None):
-               InfoExtractor.__init__(self, downloader)
-
-       def _reporter(self, message):
-               """Add header and report message."""
-               self._downloader.to_screen(u'[facebook] %s' % message)
-
-       def report_login(self):
-               """Report attempt to log in."""
-               self._reporter(u'Logging in')
-
-       def report_video_webpage_download(self, video_id):
-               """Report attempt to download video webpage."""
-               self._reporter(u'%s: Downloading video webpage' % video_id)
-
-       def report_information_extraction(self, video_id):
-               """Report attempt to extract video information."""
-               self._reporter(u'%s: Extracting video information' % video_id)
-
-       def _parse_page(self, video_webpage):
-               """Extract video information from page"""
-               # General data
-               data = {'title': r'\("video_title", "(.*?)"\)',
-                       'description': r'<div class="datawrap">(.*?)</div>',
-                       'owner': r'\("video_owner_name", "(.*?)"\)',
-                       'thumbnail':  r'\("thumb_url", "(?P<THUMB>.*?)"\)',
-                       }
-               video_info = {}
-               for piece in data.keys():
-                       mobj = re.search(data[piece], video_webpage)
-                       if mobj is not None:
-                               video_info[piece] = urllib.unquote_plus(mobj.group(1).decode("unicode_escape"))
-
-               # Video urls
-               video_urls = {}
-               for fmt in self._available_formats:
-                       mobj = re.search(r'\("%s_src\", "(.+?)"\)' % fmt, video_webpage)
-                       if mobj is not None:
-                               # URL is in a Javascript segment inside an escaped Unicode format within
-                               # the generally utf-8 page
-                               video_urls[fmt] = urllib.unquote_plus(mobj.group(1).decode("unicode_escape"))
-               video_info['video_urls'] = video_urls
-
-               return video_info
-
-       def _real_initialize(self):
-               if self._downloader is None:
-                       return
-
-               useremail = None
-               password = None
-               downloader_params = self._downloader.params
-
-               # Attempt to use provided username and password or .netrc data
-               if downloader_params.get('username', None) is not None:
-                       useremail = downloader_params['username']
-                       password = downloader_params['password']
-               elif downloader_params.get('usenetrc', False):
-                       try:
-                               info = netrc.netrc().authenticators(self._NETRC_MACHINE)
-                               if info is not None:
-                                       useremail = info[0]
-                                       password = info[2]
-                               else:
-                                       raise netrc.NetrcParseError('No authenticators for %s' % self._NETRC_MACHINE)
-                       except (IOError, netrc.NetrcParseError), err:
-                               self._downloader.to_stderr(u'WARNING: parsing .netrc: %s' % str(err))
-                               return
-
-               if useremail is None:
-                       return
-
-               # Log in
-               login_form = {
-                       'email': useremail,
-                       'pass': password,
-                       'login': 'Log+In'
-                       }
-               request = urllib2.Request(self._LOGIN_URL, urllib.urlencode(login_form))
-               try:
-                       self.report_login()
-                       login_results = urllib2.urlopen(request).read()
-                       if re.search(r'<form(.*)name="login"(.*)</form>', login_results) is not None:
-                               self._downloader.to_stderr(u'WARNING: unable to log in: bad username/password, or exceded login rate limit (~3/min). Check credentials or wait.')
-                               return
-               except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-                       self._downloader.to_stderr(u'WARNING: unable to log in: %s' % str(err))
-                       return
-
-       def _real_extract(self, url):
-               mobj = re.match(self._VALID_URL, url)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
-                       return
-               video_id = mobj.group('ID')
-
-               # Get video webpage
-               self.report_video_webpage_download(video_id)
-               request = urllib2.Request('https://www.facebook.com/video/video.php?v=%s' % video_id)
-               try:
-                       page = urllib2.urlopen(request)
-                       video_webpage = page.read()
-               except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-                       self._downloader.trouble(u'ERROR: unable to download video webpage: %s' % str(err))
-                       return
-
-               # Start extracting information
-               self.report_information_extraction(video_id)
-
-               # Extract information
-               video_info = self._parse_page(video_webpage)
-
-               # uploader
-               if 'owner' not in video_info:
-                       self._downloader.trouble(u'ERROR: unable to extract uploader nickname')
-                       return
-               video_uploader = video_info['owner']
-
-               # title
-               if 'title' not in video_info:
-                       self._downloader.trouble(u'ERROR: unable to extract video title')
-                       return
-               video_title = video_info['title']
-               video_title = video_title.decode('utf-8')
-
-               # thumbnail image
-               if 'thumbnail' not in video_info:
-                       self._downloader.trouble(u'WARNING: unable to extract video thumbnail')
-                       video_thumbnail = ''
-               else:
-                       video_thumbnail = video_info['thumbnail']
-
-               # upload date
-               upload_date = u'NA'
-               if 'upload_date' in video_info:
-                       upload_time = video_info['upload_date']
-                       timetuple = email.utils.parsedate_tz(upload_time)
-                       if timetuple is not None:
-                               try:
-                                       upload_date = time.strftime('%Y%m%d', timetuple[0:9])
-                               except:
-                                       pass
-
-               # description
-               video_description = video_info.get('description', 'No description available.')
-
-               url_map = video_info['video_urls']
-               if len(url_map.keys()) > 0:
-                       # Decide which formats to download
-                       req_format = self._downloader.params.get('format', None)
-                       format_limit = self._downloader.params.get('format_limit', None)
-
-                       if format_limit is not None and format_limit in self._available_formats:
-                               format_list = self._available_formats[self._available_formats.index(format_limit):]
-                       else:
-                               format_list = self._available_formats
-                       existing_formats = [x for x in format_list if x in url_map]
-                       if len(existing_formats) == 0:
-                               self._downloader.trouble(u'ERROR: no known formats available for video')
-                               return
-                       if req_format is None:
-                               video_url_list = [(existing_formats[0], url_map[existing_formats[0]])] # Best quality
-                       elif req_format == 'worst':
-                               video_url_list = [(existing_formats[len(existing_formats)-1], url_map[existing_formats[len(existing_formats)-1]])] # worst quality
-                       elif req_format == '-1':
-                               video_url_list = [(f, url_map[f]) for f in existing_formats] # All formats
-                       else:
-                               # Specific format
-                               if req_format not in url_map:
-                                       self._downloader.trouble(u'ERROR: requested format not available')
-                                       return
-                               video_url_list = [(req_format, url_map[req_format])] # Specific format
-
-               results = []
-               for format_param, video_real_url in video_url_list:
-                       # Extension
-                       video_extension = self._video_extensions.get(format_param, 'mp4')
-
-                       results.append({
-                               'id':           video_id.decode('utf-8'),
-                               'url':          video_real_url.decode('utf-8'),
-                               'uploader':     video_uploader.decode('utf-8'),
-                               'upload_date':  upload_date,
-                               'title':        video_title,
-                               'ext':          video_extension.decode('utf-8'),
-                               'format':       (format_param is None and u'NA' or format_param.decode('utf-8')),
-                               'thumbnail':    video_thumbnail.decode('utf-8'),
-                               'description':  video_description.decode('utf-8'),
-                               'player_url':   None,
-                       })
-               return results
+    """Information Extractor for Facebook"""
+
+    _WORKING = False
+    _VALID_URL = r'^(?:https?://)?(?:\w+\.)?facebook\.com/(?:video/video|photo)\.php\?(?:.*?)v=(?P<ID>\d+)(?:.*)'
+    _LOGIN_URL = 'https://login.facebook.com/login.php?m&next=http%3A%2F%2Fm.facebook.com%2Fhome.php&'
+    _NETRC_MACHINE = 'facebook'
+    _available_formats = ['video', 'highqual', 'lowqual']
+    _video_extensions = {
+        'video': 'mp4',
+        'highqual': 'mp4',
+        'lowqual': 'mp4',
+    }
+    IE_NAME = u'facebook'
+
+    def __init__(self, downloader=None):
+        InfoExtractor.__init__(self, downloader)
+
+    def _reporter(self, message):
+        """Add header and report message."""
+        self._downloader.to_screen(u'[facebook] %s' % message)
+
+    def report_login(self):
+        """Report attempt to log in."""
+        self._reporter(u'Logging in')
+
+    def report_video_webpage_download(self, video_id):
+        """Report attempt to download video webpage."""
+        self._reporter(u'%s: Downloading video webpage' % video_id)
+
+    def report_information_extraction(self, video_id):
+        """Report attempt to extract video information."""
+        self._reporter(u'%s: Extracting video information' % video_id)
+
+    def _parse_page(self, video_webpage):
+        """Extract video information from page"""
+        # General data
+        data = {'title': r'\("video_title", "(.*?)"\)',
+            'description': r'<div class="datawrap">(.*?)</div>',
+            'owner': r'\("video_owner_name", "(.*?)"\)',
+            'thumbnail':  r'\("thumb_url", "(?P<THUMB>.*?)"\)',
+            }
+        video_info = {}
+        for piece in data.keys():
+            mobj = re.search(data[piece], video_webpage)
+            if mobj is not None:
+                video_info[piece] = compat_urllib_parse.unquote_plus(mobj.group(1).decode("unicode_escape"))
+
+        # Video urls
+        video_urls = {}
+        for fmt in self._available_formats:
+            mobj = re.search(r'\("%s_src\", "(.+?)"\)' % fmt, video_webpage)
+            if mobj is not None:
+                # URL is in a Javascript segment inside an escaped Unicode format within
+                # the generally utf-8 page
+                video_urls[fmt] = compat_urllib_parse.unquote_plus(mobj.group(1).decode("unicode_escape"))
+        video_info['video_urls'] = video_urls
+
+        return video_info
+
+    def _real_initialize(self):
+        if self._downloader is None:
+            return
+
+        useremail = None
+        password = None
+        downloader_params = self._downloader.params
+
+        # Attempt to use provided username and password or .netrc data
+        if downloader_params.get('username', None) is not None:
+            useremail = downloader_params['username']
+            password = downloader_params['password']
+        elif downloader_params.get('usenetrc', False):
+            try:
+                info = netrc.netrc().authenticators(self._NETRC_MACHINE)
+                if info is not None:
+                    useremail = info[0]
+                    password = info[2]
+                else:
+                    raise netrc.NetrcParseError('No authenticators for %s' % self._NETRC_MACHINE)
+            except (IOError, netrc.NetrcParseError) as err:
+                self._downloader.to_stderr(u'WARNING: parsing .netrc: %s' % compat_str(err))
+                return
+
+        if useremail is None:
+            return
+
+        # Log in
+        login_form = {
+            'email': useremail,
+            'pass': password,
+            'login': 'Log+In'
+            }
+        request = compat_urllib_request.Request(self._LOGIN_URL, compat_urllib_parse.urlencode(login_form))
+        try:
+            self.report_login()
+            login_results = compat_urllib_request.urlopen(request).read()
+            if re.search(r'<form(.*)name="login"(.*)</form>', login_results) is not None:
+                self._downloader.to_stderr(u'WARNING: unable to log in: bad username/password, or exceded login rate limit (~3/min). Check credentials or wait.')
+                return
+        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+            self._downloader.to_stderr(u'WARNING: unable to log in: %s' % compat_str(err))
+            return
+
+    def _real_extract(self, url):
+        mobj = re.match(self._VALID_URL, url)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
+            return
+        video_id = mobj.group('ID')
+
+        # Get video webpage
+        self.report_video_webpage_download(video_id)
+        request = compat_urllib_request.Request('https://www.facebook.com/video/video.php?v=%s' % video_id)
+        try:
+            page = compat_urllib_request.urlopen(request)
+            video_webpage = page.read()
+        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+            self._downloader.trouble(u'ERROR: unable to download video webpage: %s' % compat_str(err))
+            return
+
+        # Start extracting information
+        self.report_information_extraction(video_id)
+
+        # Extract information
+        video_info = self._parse_page(video_webpage)
+
+        # uploader
+        if 'owner' not in video_info:
+            self._downloader.trouble(u'ERROR: unable to extract uploader nickname')
+            return
+        video_uploader = video_info['owner']
+
+        # title
+        if 'title' not in video_info:
+            self._downloader.trouble(u'ERROR: unable to extract video title')
+            return
+        video_title = video_info['title']
+        video_title = video_title.decode('utf-8')
+
+        # thumbnail image
+        if 'thumbnail' not in video_info:
+            self._downloader.trouble(u'WARNING: unable to extract video thumbnail')
+            video_thumbnail = ''
+        else:
+            video_thumbnail = video_info['thumbnail']
+
+        # upload date
+        upload_date = None
+        if 'upload_date' in video_info:
+            upload_time = video_info['upload_date']
+            timetuple = email.utils.parsedate_tz(upload_time)
+            if timetuple is not None:
+                try:
+                    upload_date = time.strftime('%Y%m%d', timetuple[0:9])
+                except:
+                    pass
+
+        # description
+        video_description = video_info.get('description', 'No description available.')
+
+        url_map = video_info['video_urls']
+        if len(url_map.keys()) > 0:
+            # Decide which formats to download
+            req_format = self._downloader.params.get('format', None)
+            format_limit = self._downloader.params.get('format_limit', None)
+
+            if format_limit is not None and format_limit in self._available_formats:
+                format_list = self._available_formats[self._available_formats.index(format_limit):]
+            else:
+                format_list = self._available_formats
+            existing_formats = [x for x in format_list if x in url_map]
+            if len(existing_formats) == 0:
+                self._downloader.trouble(u'ERROR: no known formats available for video')
+                return
+            if req_format is None:
+                video_url_list = [(existing_formats[0], url_map[existing_formats[0]])] # Best quality
+            elif req_format == 'worst':
+                video_url_list = [(existing_formats[len(existing_formats)-1], url_map[existing_formats[len(existing_formats)-1]])] # worst quality
+            elif req_format == '-1':
+                video_url_list = [(f, url_map[f]) for f in existing_formats] # All formats
+            else:
+                # Specific format
+                if req_format not in url_map:
+                    self._downloader.trouble(u'ERROR: requested format not available')
+                    return
+                video_url_list = [(req_format, url_map[req_format])] # Specific format
+
+        results = []
+        for format_param, video_real_url in video_url_list:
+            # Extension
+            video_extension = self._video_extensions.get(format_param, 'mp4')
+
+            results.append({
+                'id':       video_id.decode('utf-8'),
+                'url':      video_real_url.decode('utf-8'),
+                'uploader': video_uploader.decode('utf-8'),
+                'upload_date':  upload_date,
+                'title':    video_title,
+                'ext':      video_extension.decode('utf-8'),
+                'format':   (format_param is None and u'NA' or format_param.decode('utf-8')),
+                'thumbnail':    video_thumbnail.decode('utf-8'),
+                'description':  video_description.decode('utf-8'),
+            })
+        return results

 
 class BlipTVIE(InfoExtractor):
 
 class BlipTVIE(InfoExtractor):

-       """Information extractor for blip.tv"""
-
-       _VALID_URL = r'^(?:https?://)?(?:\w+\.)?blip\.tv(/.+)$'
-       _URL_EXT = r'^.*\.([a-z0-9]+)$'
-       IE_NAME = u'blip.tv'
-
-       def report_extraction(self, file_id):
-               """Report information extraction."""
-               self._downloader.to_screen(u'[%s] %s: Extracting information' % (self.IE_NAME, file_id))
-
-       def report_direct_download(self, title):
-               """Report information extraction."""
-               self._downloader.to_screen(u'[%s] %s: Direct download detected' % (self.IE_NAME, title))
-
-       def _real_extract(self, url):
-               mobj = re.match(self._VALID_URL, url)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
-                       return
-
-               if '?' in url:
-                       cchar = '&'
-               else:
-                       cchar = '?'
-               json_url = url + cchar + 'skin=json&version=2&no_wrap=1'
-               request = urllib2.Request(json_url.encode('utf-8'))
-               self.report_extraction(mobj.group(1))
-               info = None
-               try:
-                       urlh = urllib2.urlopen(request)
-                       if urlh.headers.get('Content-Type', '').startswith('video/'): # Direct download
-                               basename = url.split('/')[-1]
-                               title,ext = os.path.splitext(basename)
-                               title = title.decode('UTF-8')
-                               ext = ext.replace('.', '')
-                               self.report_direct_download(title)
-                               info = {
-                                       'id': title,
-                                       'url': url,
-                                       'title': title,
-                                       'ext': ext,
-                                       'urlhandle': urlh
-                               }
-               except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-                       self._downloader.trouble(u'ERROR: unable to download video info webpage: %s' % str(err))
-                       return
-               if info is None: # Regular URL
-                       try:
-                               json_code = urlh.read()
-                       except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-                               self._downloader.trouble(u'ERROR: unable to read video info webpage: %s' % str(err))
-                               return
-
-                       try:
-                               json_data = json.loads(json_code)
-                               if 'Post' in json_data:
-                                       data = json_data['Post']
-                               else:
-                                       data = json_data
-
-                               upload_date = datetime.datetime.strptime(data['datestamp'], '%m-%d-%y %H:%M%p').strftime('%Y%m%d')
-                               video_url = data['media']['url']
-                               umobj = re.match(self._URL_EXT, video_url)
-                               if umobj is None:
-                                       raise ValueError('Can not determine filename extension')
-                               ext = umobj.group(1)
-
-                               info = {
-                                       'id': data['item_id'],
-                                       'url': video_url,
-                                       'uploader': data['display_name'],
-                                       'upload_date': upload_date,
-                                       'title': data['title'],
-                                       'ext': ext,
-                                       'format': data['media']['mimeType'],
-                                       'thumbnail': data['thumbnailUrl'],
-                                       'description': data['description'],
-                                       'player_url': data['embedUrl']
-                               }
-                       except (ValueError,KeyError), err:
-                               self._downloader.trouble(u'ERROR: unable to parse video information: %s' % repr(err))
-                               return
-
-               std_headers['User-Agent'] = 'iTunes/10.6.1'
-               return [info]
+    """Information extractor for blip.tv"""
+
+    _VALID_URL = r'^(?:https?://)?(?:\w+\.)?blip\.tv(/.+)$'
+    _URL_EXT = r'^.*\.([a-z0-9]+)$'
+    IE_NAME = u'blip.tv'
+
+    def report_extraction(self, file_id):
+        """Report information extraction."""
+        self._downloader.to_screen(u'[%s] %s: Extracting information' % (self.IE_NAME, file_id))
+
+    def report_direct_download(self, title):
+        """Report information extraction."""
+        self._downloader.to_screen(u'[%s] %s: Direct download detected' % (self.IE_NAME, title))
+
+    def _real_extract(self, url):
+        mobj = re.match(self._VALID_URL, url)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
+            return
+
+        if '?' in url:
+            cchar = '&'
+        else:
+            cchar = '?'
+        json_url = url + cchar + 'skin=json&version=2&no_wrap=1'
+        request = compat_urllib_request.Request(json_url.encode('utf-8'))
+        self.report_extraction(mobj.group(1))
+        info = None
+        try:
+            urlh = compat_urllib_request.urlopen(request)
+            if urlh.headers.get('Content-Type', '').startswith('video/'): # Direct download
+                basename = url.split('/')[-1]
+                title,ext = os.path.splitext(basename)
+                title = title.decode('UTF-8')
+                ext = ext.replace('.', '')
+                self.report_direct_download(title)
+                info = {
+                    'id': title,
+                    'url': url,
+                    'uploader': None,
+                    'upload_date': None,
+                    'title': title,
+                    'ext': ext,
+                    'urlhandle': urlh
+                }
+        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+            self._downloader.trouble(u'ERROR: unable to download video info webpage: %s' % compat_str(err))
+            return
+        if info is None: # Regular URL
+            try:
+                json_code = urlh.read()
+            except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+                self._downloader.trouble(u'ERROR: unable to read video info webpage: %s' % compat_str(err))
+                return
+
+            try:
+                json_data = json.loads(json_code)
+                if 'Post' in json_data:
+                    data = json_data['Post']
+                else:
+                    data = json_data
+
+                upload_date = datetime.datetime.strptime(data['datestamp'], '%m-%d-%y %H:%M%p').strftime('%Y%m%d')
+                video_url = data['media']['url']
+                umobj = re.match(self._URL_EXT, video_url)
+                if umobj is None:
+                    raise ValueError('Can not determine filename extension')
+                ext = umobj.group(1)
+
+                info = {
+                    'id': data['item_id'],
+                    'url': video_url,
+                    'uploader': data['display_name'],
+                    'upload_date': upload_date,
+                    'title': data['title'],
+                    'ext': ext,
+                    'format': data['media']['mimeType'],
+                    'thumbnail': data['thumbnailUrl'],
+                    'description': data['description'],
+                    'player_url': data['embedUrl']
+                }
+            except (ValueError,KeyError) as err:
+                self._downloader.trouble(u'ERROR: unable to parse video information: %s' % repr(err))
+                return
+
+        std_headers['User-Agent'] = 'iTunes/10.6.1'
+        return [info]

 
 
 class MyVideoIE(InfoExtractor):
 
 
 class MyVideoIE(InfoExtractor):

-       """Information Extractor for myvideo.de."""
-
-       _VALID_URL = r'(?:http://)?(?:www\.)?myvideo\.de/watch/([0-9]+)/([^?/]+).*'
-       IE_NAME = u'myvideo'
-
-       def __init__(self, downloader=None):
-               InfoExtractor.__init__(self, downloader)
-       
-       def report_download_webpage(self, video_id):
-               """Report webpage download."""
-               self._downloader.to_screen(u'[myvideo] %s: Downloading webpage' % video_id)
-
-       def report_extraction(self, video_id):
-               """Report information extraction."""
-               self._downloader.to_screen(u'[myvideo] %s: Extracting information' % video_id)
-
-       def _real_extract(self,url):
-               mobj = re.match(self._VALID_URL, url)
-               if mobj is None:
-                       self._download.trouble(u'ERROR: invalid URL: %s' % url)
-                       return
-
-               video_id = mobj.group(1)
-
-               # Get video webpage
-               request = urllib2.Request('http://www.myvideo.de/watch/%s' % video_id)
-               try:
-                       self.report_download_webpage(video_id)
-                       webpage = urllib2.urlopen(request).read()
-               except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-                       self._downloader.trouble(u'ERROR: Unable to retrieve video webpage: %s' % str(err))
-                       return
-
-               self.report_extraction(video_id)
-               mobj = re.search(r'<link rel=\'image_src\' href=\'(http://is[0-9].myvideo\.de/de/movie[0-9]+/[a-f0-9]+)/thumbs/[^.]+\.jpg\' />',
-                                webpage)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: unable to extract media URL')
-                       return
-               video_url = mobj.group(1) + ('/%s.flv' % video_id)
-
-               mobj = re.search('<title>([^<]+)</title>', webpage)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: unable to extract title')
-                       return
-
-               video_title = mobj.group(1)
-
-               return [{
-                       'id':           video_id,
-                       'url':          video_url,
-                       'uploader':     u'NA',
-                       'upload_date':  u'NA',
-                       'title':        video_title,
-                       'ext':          u'flv',
-                       'format':       u'NA',
-                       'player_url':   None,
-               }]
+    """Information Extractor for myvideo.de."""
+
+    _VALID_URL = r'(?:http://)?(?:www\.)?myvideo\.de/watch/([0-9]+)/([^?/]+).*'
+    IE_NAME = u'myvideo'
+
+    def __init__(self, downloader=None):
+        InfoExtractor.__init__(self, downloader)
+    
+    def report_download_webpage(self, video_id):
+        """Report webpage download."""
+        self._downloader.to_screen(u'[myvideo] %s: Downloading webpage' % video_id)
+
+    def report_extraction(self, video_id):
+        """Report information extraction."""
+        self._downloader.to_screen(u'[myvideo] %s: Extracting information' % video_id)
+
+    def _real_extract(self,url):
+        mobj = re.match(self._VALID_URL, url)
+        if mobj is None:
+            self._download.trouble(u'ERROR: invalid URL: %s' % url)
+            return
+
+        video_id = mobj.group(1)
+
+        # Get video webpage
+        request = compat_urllib_request.Request('http://www.myvideo.de/watch/%s' % video_id)
+        try:
+            self.report_download_webpage(video_id)
+            webpage = compat_urllib_request.urlopen(request).read()
+        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+            self._downloader.trouble(u'ERROR: Unable to retrieve video webpage: %s' % compat_str(err))
+            return
+
+        self.report_extraction(video_id)
+        mobj = re.search(r'<link rel=\'image_src\' href=\'(http://is[0-9].myvideo\.de/de/movie[0-9]+/[a-f0-9]+)/thumbs/[^.]+\.jpg\' />',
+                 webpage)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: unable to extract media URL')
+            return
+        video_url = mobj.group(1) + ('/%s.flv' % video_id)
+
+        mobj = re.search('<title>([^<]+)</title>', webpage)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: unable to extract title')
+            return
+
+        video_title = mobj.group(1)
+
+        return [{
+            'id':       video_id,
+            'url':      video_url,
+            'uploader': None,
+            'upload_date':  None,
+            'title':    video_title,
+            'ext':      u'flv',
+        }]

 
 class ComedyCentralIE(InfoExtractor):
 
 class ComedyCentralIE(InfoExtractor):

-       """Information extractor for The Daily Show and Colbert Report """
-
-       _VALID_URL = r'^(:(?P<shortname>tds|thedailyshow|cr|colbert|colbertnation|colbertreport))|(https?://)?(www\.)?(?P<showname>thedailyshow|colbertnation)\.com/full-episodes/(?P<episode>.*)$'
-       IE_NAME = u'comedycentral'
-
-       def report_extraction(self, episode_id):
-               self._downloader.to_screen(u'[comedycentral] %s: Extracting information' % episode_id)
-
-       def report_config_download(self, episode_id):
-               self._downloader.to_screen(u'[comedycentral] %s: Downloading configuration' % episode_id)
-
-       def report_index_download(self, episode_id):
-               self._downloader.to_screen(u'[comedycentral] %s: Downloading show index' % episode_id)
-
-       def report_player_url(self, episode_id):
-               self._downloader.to_screen(u'[comedycentral] %s: Determining player URL' % episode_id)
-
-       def _real_extract(self, url):
-               mobj = re.match(self._VALID_URL, url)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
-                       return
-
-               if mobj.group('shortname'):
-                       if mobj.group('shortname') in ('tds', 'thedailyshow'):
-                               url = u'http://www.thedailyshow.com/full-episodes/'
-                       else:
-                               url = u'http://www.colbertnation.com/full-episodes/'
-                       mobj = re.match(self._VALID_URL, url)
-                       assert mobj is not None
-
-               dlNewest = not mobj.group('episode')
-               if dlNewest:
-                       epTitle = mobj.group('showname')
-               else:
-                       epTitle = mobj.group('episode')
-
-               req = urllib2.Request(url)
-               self.report_extraction(epTitle)
-               try:
-                       htmlHandle = urllib2.urlopen(req)
-                       html = htmlHandle.read()
-               except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-                       self._downloader.trouble(u'ERROR: unable to download webpage: %s' % unicode(err))
-                       return
-               if dlNewest:
-                       url = htmlHandle.geturl()
-                       mobj = re.match(self._VALID_URL, url)
-                       if mobj is None:
-                               self._downloader.trouble(u'ERROR: Invalid redirected URL: ' + url)
-                               return
-                       if mobj.group('episode') == '':
-                               self._downloader.trouble(u'ERROR: Redirected URL is still not specific: ' + url)
-                               return
-                       epTitle = mobj.group('episode')
-
-               mMovieParams = re.findall('(?:<param name="movie" value="|var url = ")(http://media.mtvnservices.com/([^"]*episode.*?:.*?))"', html)
-               if len(mMovieParams) == 0:
-                       self._downloader.trouble(u'ERROR: unable to find Flash URL in webpage ' + url)
-                       return
-
-               playerUrl_raw = mMovieParams[0][0]
-               self.report_player_url(epTitle)
-               try:
-                       urlHandle = urllib2.urlopen(playerUrl_raw)
-                       playerUrl = urlHandle.geturl()
-               except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-                       self._downloader.trouble(u'ERROR: unable to find out player URL: ' + unicode(err))
-                       return
-
-               uri = mMovieParams[0][1]
-               indexUrl = 'http://shadow.comedycentral.com/feeds/video_player/mrss/?' + urllib.urlencode({'uri': uri})
-               self.report_index_download(epTitle)
-               try:
-                       indexXml = urllib2.urlopen(indexUrl).read()
-               except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-                       self._downloader.trouble(u'ERROR: unable to download episode index: ' + unicode(err))
-                       return
-
-               results = []
-
-               idoc = xml.etree.ElementTree.fromstring(indexXml)
-               itemEls = idoc.findall('.//item')
-               for itemEl in itemEls:
-                       mediaId = itemEl.findall('./guid')[0].text
-                       shortMediaId = mediaId.split(':')[-1]
-                       showId = mediaId.split(':')[-2].replace('.com', '')
-                       officialTitle = itemEl.findall('./title')[0].text
-                       officialDate = itemEl.findall('./pubDate')[0].text
-
-                       configUrl = ('http://www.comedycentral.com/global/feeds/entertainment/media/mediaGenEntertainment.jhtml?' +
-                                               urllib.urlencode({'uri': mediaId}))
-                       configReq = urllib2.Request(configUrl)
-                       self.report_config_download(epTitle)
-                       try:
-                               configXml = urllib2.urlopen(configReq).read()
-                       except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-                               self._downloader.trouble(u'ERROR: unable to download webpage: %s' % unicode(err))
-                               return
-
-                       cdoc = xml.etree.ElementTree.fromstring(configXml)
-                       turls = []
-                       for rendition in cdoc.findall('.//rendition'):
-                               finfo = (rendition.attrib['bitrate'], rendition.findall('./src')[0].text)
-                               turls.append(finfo)
-
-                       if len(turls) == 0:
-                               self._downloader.trouble(u'\nERROR: unable to download ' + mediaId + ': No videos found')
-                               continue
-
-                       # For now, just pick the highest bitrate
-                       format,video_url = turls[-1]
-
-                       effTitle = showId + u'-' + epTitle
-                       info = {
-                               'id': shortMediaId,
-                               'url': video_url,
-                               'uploader': showId,
-                               'upload_date': officialDate,
-                               'title': effTitle,
-                               'ext': 'mp4',
-                               'format': format,
-                               'thumbnail': None,
-                               'description': officialTitle,
-                               'player_url': playerUrl
-                       }
-
-                       results.append(info)
-                       
-               return results
+    """Information extractor for The Daily Show and Colbert Report """
+
+    _VALID_URL = r'^(:(?P<shortname>tds|thedailyshow|cr|colbert|colbertnation|colbertreport))|(https?://)?(www\.)?(?P<showname>thedailyshow|colbertnation)\.com/full-episodes/(?P<episode>.*)$'
+    IE_NAME = u'comedycentral'
+
+    _available_formats = ['3500', '2200', '1700', '1200', '750', '400']
+
+    _video_extensions = {
+        '3500': 'mp4',
+        '2200': 'mp4',
+        '1700': 'mp4',
+        '1200': 'mp4',
+        '750': 'mp4',
+        '400': 'mp4',
+    }
+    _video_dimensions = {
+        '3500': '1280x720',
+        '2200': '960x540',
+        '1700': '768x432',
+        '1200': '640x360',
+        '750': '512x288',
+        '400': '384x216',
+    }
+
+    def report_extraction(self, episode_id):
+        self._downloader.to_screen(u'[comedycentral] %s: Extracting information' % episode_id)
+
+    def report_config_download(self, episode_id):
+        self._downloader.to_screen(u'[comedycentral] %s: Downloading configuration' % episode_id)
+
+    def report_index_download(self, episode_id):
+        self._downloader.to_screen(u'[comedycentral] %s: Downloading show index' % episode_id)
+
+    def report_player_url(self, episode_id):
+        self._downloader.to_screen(u'[comedycentral] %s: Determining player URL' % episode_id)
+
+
+    def _print_formats(self, formats):
+        print('Available formats:')
+        for x in formats:
+            print('%s\t:\t%s\t[%s]' %(x, self._video_extensions.get(x, 'mp4'), self._video_dimensions.get(x, '???')))
+
+
+    def _real_extract(self, url):
+        mobj = re.match(self._VALID_URL, url)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
+            return
+
+        if mobj.group('shortname'):
+            if mobj.group('shortname') in ('tds', 'thedailyshow'):
+                url = u'http://www.thedailyshow.com/full-episodes/'
+            else:
+                url = u'http://www.colbertnation.com/full-episodes/'
+            mobj = re.match(self._VALID_URL, url)
+            assert mobj is not None
+
+        dlNewest = not mobj.group('episode')
+        if dlNewest:
+            epTitle = mobj.group('showname')
+        else:
+            epTitle = mobj.group('episode')
+
+        req = compat_urllib_request.Request(url)
+        self.report_extraction(epTitle)
+        try:
+            htmlHandle = compat_urllib_request.urlopen(req)
+            html = htmlHandle.read()
+        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+            self._downloader.trouble(u'ERROR: unable to download webpage: %s' % compat_str(err))
+            return
+        if dlNewest:
+            url = htmlHandle.geturl()
+            mobj = re.match(self._VALID_URL, url)
+            if mobj is None:
+                self._downloader.trouble(u'ERROR: Invalid redirected URL: ' + url)
+                return
+            if mobj.group('episode') == '':
+                self._downloader.trouble(u'ERROR: Redirected URL is still not specific: ' + url)
+                return
+            epTitle = mobj.group('episode')
+
+        mMovieParams = re.findall('(?:<param name="movie" value="|var url = ")(http://media.mtvnservices.com/([^"]*episode.*?:.*?))"', html)
+
+        if len(mMovieParams) == 0:
+            # The Colbert Report embeds the information in a without
+            # a URL prefix; so extract the alternate reference
+            # and then add the URL prefix manually.
+
+            altMovieParams = re.findall('data-mgid="([^"]*episode.*?:.*?)"', html)
+            if len(altMovieParams) == 0:
+                self._downloader.trouble(u'ERROR: unable to find Flash URL in webpage ' + url)
+                return
+            else:
+                mMovieParams = [("http://media.mtvnservices.com/" + altMovieParams[0], altMovieParams[0])]
+        
+        playerUrl_raw = mMovieParams[0][0]
+        self.report_player_url(epTitle)
+        try:
+            urlHandle = compat_urllib_request.urlopen(playerUrl_raw)
+            playerUrl = urlHandle.geturl()
+        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+            self._downloader.trouble(u'ERROR: unable to find out player URL: ' + compat_str(err))
+            return
+
+        uri = mMovieParams[0][1]
+        indexUrl = 'http://shadow.comedycentral.com/feeds/video_player/mrss/?' + compat_urllib_parse.urlencode({'uri': uri})
+        self.report_index_download(epTitle)
+        try:
+            indexXml = compat_urllib_request.urlopen(indexUrl).read()
+        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+            self._downloader.trouble(u'ERROR: unable to download episode index: ' + compat_str(err))
+            return
+
+        results = []
+
+        idoc = xml.etree.ElementTree.fromstring(indexXml)
+        itemEls = idoc.findall('.//item')
+        for itemEl in itemEls:
+            mediaId = itemEl.findall('./guid')[0].text
+            shortMediaId = mediaId.split(':')[-1]
+            showId = mediaId.split(':')[-2].replace('.com', '')
+            officialTitle = itemEl.findall('./title')[0].text
+            officialDate = itemEl.findall('./pubDate')[0].text
+
+            configUrl = ('http://www.comedycentral.com/global/feeds/entertainment/media/mediaGenEntertainment.jhtml?' +
+                        compat_urllib_parse.urlencode({'uri': mediaId}))
+            configReq = compat_urllib_request.Request(configUrl)
+            self.report_config_download(epTitle)
+            try:
+                configXml = compat_urllib_request.urlopen(configReq).read()
+            except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+                self._downloader.trouble(u'ERROR: unable to download webpage: %s' % compat_str(err))
+                return
+
+            cdoc = xml.etree.ElementTree.fromstring(configXml)
+            turls = []
+            for rendition in cdoc.findall('.//rendition'):
+                finfo = (rendition.attrib['bitrate'], rendition.findall('./src')[0].text)
+                turls.append(finfo)
+
+            if len(turls) == 0:
+                self._downloader.trouble(u'\nERROR: unable to download ' + mediaId + ': No videos found')
+                continue
+            
+            if self._downloader.params.get('listformats', None):
+                self._print_formats([i[0] for i in turls])
+                return
+
+            # For now, just pick the highest bitrate
+            format,video_url = turls[-1]
+
+            # Get the format arg from the arg stream
+            req_format = self._downloader.params.get('format', None)
+
+            # Select format if we can find one
+            for f,v in turls:
+                if f == req_format:
+                    format, video_url = f, v
+                    break
+
+            # Patch to download from alternative CDN, which does not
+            # break on current RTMPDump builds
+            broken_cdn = "rtmpe://viacomccstrmfs.fplive.net/viacomccstrm/gsp.comedystor/"
+            better_cdn = "rtmpe://cp10740.edgefcs.net/ondemand/mtvnorigin/gsp.comedystor/"
+
+            if video_url.startswith(broken_cdn):
+                video_url = video_url.replace(broken_cdn, better_cdn)
+
+            effTitle = showId + u'-' + epTitle
+            info = {
+                'id': shortMediaId,
+                'url': video_url,
+                'uploader': showId,
+                'upload_date': officialDate,
+                'title': effTitle,
+                'ext': 'mp4',
+                'format': format,
+                'thumbnail': None,
+                'description': officialTitle,
+                'player_url': None #playerUrl
+            }
+
+            results.append(info)
+            
+        return results

 
 
 class EscapistIE(InfoExtractor):
 
 
 class EscapistIE(InfoExtractor):

-       """Information extractor for The Escapist """
-
-       _VALID_URL = r'^(https?://)?(www\.)?escapistmagazine\.com/videos/view/(?P<showname>[^/]+)/(?P<episode>[^/?]+)[/?]?.*$'
-       IE_NAME = u'escapist'
-
-       def report_extraction(self, showName):
-               self._downloader.to_screen(u'[escapist] %s: Extracting information' % showName)
-
-       def report_config_download(self, showName):
-               self._downloader.to_screen(u'[escapist] %s: Downloading configuration' % showName)
-
-       def _real_extract(self, url):
-               mobj = re.match(self._VALID_URL, url)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
-                       return
-               showName = mobj.group('showname')
-               videoId = mobj.group('episode')
-
-               self.report_extraction(showName)
-               try:
-                       webPage = urllib2.urlopen(url)
-                       webPageBytes = webPage.read()
-                       m = re.match(r'text/html; charset="?([^"]+)"?', webPage.headers['Content-Type'])
-                       webPage = webPageBytes.decode(m.group(1) if m else 'utf-8')
-               except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-                       self._downloader.trouble(u'ERROR: unable to download webpage: ' + unicode(err))
-                       return
-
-               descMatch = re.search('<meta name="description" content="([^"]*)"', webPage)
-               description = unescapeHTML(descMatch.group(1))
-               imgMatch = re.search('<meta property="og:image" content="([^"]*)"', webPage)
-               imgUrl = unescapeHTML(imgMatch.group(1))
-               playerUrlMatch = re.search('<meta property="og:video" content="([^"]*)"', webPage)
-               playerUrl = unescapeHTML(playerUrlMatch.group(1))
-               configUrlMatch = re.search('config=(.*)$', playerUrl)
-               configUrl = urllib2.unquote(configUrlMatch.group(1))
-
-               self.report_config_download(showName)
-               try:
-                       configJSON = urllib2.urlopen(configUrl).read()
-               except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-                       self._downloader.trouble(u'ERROR: unable to download configuration: ' + unicode(err))
-                       return
-
-               # Technically, it's JavaScript, not JSON
-               configJSON = configJSON.replace("'", '"')
-
-               try:
-                       config = json.loads(configJSON)
-               except (ValueError,), err:
-                       self._downloader.trouble(u'ERROR: Invalid JSON in configuration file: ' + unicode(err))
-                       return
-
-               playlist = config['playlist']
-               videoUrl = playlist[1]['url']
-
-               info = {
-                       'id': videoId,
-                       'url': videoUrl,
-                       'uploader': showName,
-                       'upload_date': None,
-                       'title': showName,
-                       'ext': 'flv',
-                       'format': 'flv',
-                       'thumbnail': imgUrl,
-                       'description': description,
-                       'player_url': playerUrl,
-               }
-
-               return [info]
+    """Information extractor for The Escapist """
+
+    _VALID_URL = r'^(https?://)?(www\.)?escapistmagazine\.com/videos/view/(?P<showname>[^/]+)/(?P<episode>[^/?]+)[/?]?.*$'
+    IE_NAME = u'escapist'
+
+    def report_extraction(self, showName):
+        self._downloader.to_screen(u'[escapist] %s: Extracting information' % showName)
+
+    def report_config_download(self, showName):
+        self._downloader.to_screen(u'[escapist] %s: Downloading configuration' % showName)
+
+    def _real_extract(self, url):
+        mobj = re.match(self._VALID_URL, url)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
+            return
+        showName = mobj.group('showname')
+        videoId = mobj.group('episode')
+
+        self.report_extraction(showName)
+        try:
+            webPage = compat_urllib_request.urlopen(url)
+            webPageBytes = webPage.read()
+            m = re.match(r'text/html; charset="?([^"]+)"?', webPage.headers['Content-Type'])
+            webPage = webPageBytes.decode(m.group(1) if m else 'utf-8')
+        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+            self._downloader.trouble(u'ERROR: unable to download webpage: ' + compat_str(err))
+            return
+
+        descMatch = re.search('<meta name="description" content="([^"]*)"', webPage)
+        description = unescapeHTML(descMatch.group(1))
+        imgMatch = re.search('<meta property="og:image" content="([^"]*)"', webPage)
+        imgUrl = unescapeHTML(imgMatch.group(1))
+        playerUrlMatch = re.search('<meta property="og:video" content="([^"]*)"', webPage)
+        playerUrl = unescapeHTML(playerUrlMatch.group(1))
+        configUrlMatch = re.search('config=(.*)$', playerUrl)
+        configUrl = compat_urllib_parse.unquote(configUrlMatch.group(1))
+
+        self.report_config_download(showName)
+        try:
+            configJSON = compat_urllib_request.urlopen(configUrl).read()
+        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+            self._downloader.trouble(u'ERROR: unable to download configuration: ' + compat_str(err))
+            return
+
+        # Technically, it's JavaScript, not JSON
+        configJSON = configJSON.replace("'", '"')
+
+        try:
+            config = json.loads(configJSON)
+        except (ValueError,) as err:
+            self._downloader.trouble(u'ERROR: Invalid JSON in configuration file: ' + compat_str(err))
+            return
+
+        playlist = config['playlist']
+        videoUrl = playlist[1]['url']
+
+        info = {
+            'id': videoId,
+            'url': videoUrl,
+            'uploader': showName,
+            'upload_date': None,
+            'title': showName,
+            'ext': 'flv',
+            'thumbnail': imgUrl,
+            'description': description,
+            'player_url': playerUrl,
+        }
+
+        return [info]

 
 
 class CollegeHumorIE(InfoExtractor):
 
 
 class CollegeHumorIE(InfoExtractor):

-       """Information extractor for collegehumor.com"""
-
-       _VALID_URL = r'^(?:https?://)?(?:www\.)?collegehumor\.com/video/(?P<videoid>[0-9]+)/(?P<shorttitle>.*)$'
-       IE_NAME = u'collegehumor'
-
-       def report_webpage(self, video_id):
-               """Report information extraction."""
-               self._downloader.to_screen(u'[%s] %s: Downloading webpage' % (self.IE_NAME, video_id))
-
-       def report_extraction(self, video_id):
-               """Report information extraction."""
-               self._downloader.to_screen(u'[%s] %s: Extracting information' % (self.IE_NAME, video_id))
-
-       def _real_extract(self, url):
-               mobj = re.match(self._VALID_URL, url)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
-                       return
-               video_id = mobj.group('videoid')
-
-               self.report_webpage(video_id)
-               request = urllib2.Request(url)
-               try:
-                       webpage = urllib2.urlopen(request).read()
-               except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-                       self._downloader.trouble(u'ERROR: unable to download video webpage: %s' % str(err))
-                       return
-
-               m = re.search(r'id="video:(?P<internalvideoid>[0-9]+)"', webpage)
-               if m is None:
-                       self._downloader.trouble(u'ERROR: Cannot extract internal video ID')
-                       return
-               internal_video_id = m.group('internalvideoid')
-
-               info = {
-                       'id': video_id,
-                       'internal_id': internal_video_id,
-               }
-
-               self.report_extraction(video_id)
-               xmlUrl = 'http://www.collegehumor.com/moogaloop/video:' + internal_video_id
-               try:
-                       metaXml = urllib2.urlopen(xmlUrl).read()
-               except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-                       self._downloader.trouble(u'ERROR: unable to download video info XML: %s' % str(err))
-                       return
-
-               mdoc = xml.etree.ElementTree.fromstring(metaXml)
-               try:
-                       videoNode = mdoc.findall('./video')[0]
-                       info['description'] = videoNode.findall('./description')[0].text
-                       info['title'] = videoNode.findall('./caption')[0].text
-                       info['url'] = videoNode.findall('./file')[0].text
-                       info['thumbnail'] = videoNode.findall('./thumbnail')[0].text
-                       info['ext'] = info['url'].rpartition('.')[2]
-                       info['format'] = info['ext']
-               except IndexError:
-                       self._downloader.trouble(u'\nERROR: Invalid metadata XML file')
-                       return
-
-               return [info]
+    """Information extractor for collegehumor.com"""
+
+    _WORKING = False
+    _VALID_URL = r'^(?:https?://)?(?:www\.)?collegehumor\.com/video/(?P<videoid>[0-9]+)/(?P<shorttitle>.*)$'
+    IE_NAME = u'collegehumor'
+
+    def report_manifest(self, video_id):
+        """Report information extraction."""
+        self._downloader.to_screen(u'[%s] %s: Downloading XML manifest' % (self.IE_NAME, video_id))
+
+    def report_extraction(self, video_id):
+        """Report information extraction."""
+        self._downloader.to_screen(u'[%s] %s: Extracting information' % (self.IE_NAME, video_id))
+
+    def _real_extract(self, url):
+        mobj = re.match(self._VALID_URL, url)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
+            return
+        video_id = mobj.group('videoid')
+
+        info = {
+            'id': video_id,
+            'uploader': None,
+            'upload_date': None,
+        }
+
+        self.report_extraction(video_id)
+        xmlUrl = 'http://www.collegehumor.com/moogaloop/video/' + video_id
+        try:
+            metaXml = compat_urllib_request.urlopen(xmlUrl).read()
+        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+            self._downloader.trouble(u'ERROR: unable to download video info XML: %s' % compat_str(err))
+            return
+
+        mdoc = xml.etree.ElementTree.fromstring(metaXml)
+        try:
+            videoNode = mdoc.findall('./video')[0]
+            info['description'] = videoNode.findall('./description')[0].text
+            info['title'] = videoNode.findall('./caption')[0].text
+            info['thumbnail'] = videoNode.findall('./thumbnail')[0].text
+            manifest_url = videoNode.findall('./file')[0].text
+        except IndexError:
+            self._downloader.trouble(u'\nERROR: Invalid metadata XML file')
+            return
+
+        manifest_url += '?hdcore=2.10.3'
+        self.report_manifest(video_id)
+        try:
+            manifestXml = compat_urllib_request.urlopen(manifest_url).read()
+        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+            self._downloader.trouble(u'ERROR: unable to download video info XML: %s' % compat_str(err))
+            return
+
+        adoc = xml.etree.ElementTree.fromstring(manifestXml)
+        try:
+            media_node = adoc.findall('./{http://ns.adobe.com/f4m/1.0}media')[0]
+            node_id = media_node.attrib['url']
+            video_id = adoc.findall('./{http://ns.adobe.com/f4m/1.0}id')[0].text
+        except IndexError as err:
+            self._downloader.trouble(u'\nERROR: Invalid manifest file')
+            return
+
+        url_pr = compat_urllib_parse_urlparse(manifest_url)
+        url = url_pr.scheme + '://' + url_pr.netloc + '/z' + video_id[:-2] + '/' + node_id + 'Seg1-Frag1'
+
+        info['url'] = url
+        info['ext'] = 'f4f'
+        return [info]

 
 
 class XVideosIE(InfoExtractor):
 
 
 class XVideosIE(InfoExtractor):

-       """Information extractor for xvideos.com"""
+    """Information extractor for xvideos.com"""

 
 

-       _VALID_URL = r'^(?:https?://)?(?:www\.)?xvideos\.com/video([0-9]+)(?:.*)'
-       IE_NAME = u'xvideos'
+    _VALID_URL = r'^(?:https?://)?(?:www\.)?xvideos\.com/video([0-9]+)(?:.*)'
+    IE_NAME = u'xvideos'

 
 

-       def report_webpage(self, video_id):
-               """Report information extraction."""
-               self._downloader.to_screen(u'[%s] %s: Downloading webpage' % (self.IE_NAME, video_id))
+    def report_webpage(self, video_id):
+        """Report information extraction."""
+        self._downloader.to_screen(u'[%s] %s: Downloading webpage' % (self.IE_NAME, video_id))

 
 

-       def report_extraction(self, video_id):
-               """Report information extraction."""
-               self._downloader.to_screen(u'[%s] %s: Extracting information' % (self.IE_NAME, video_id))
+    def report_extraction(self, video_id):
+        """Report information extraction."""
+        self._downloader.to_screen(u'[%s] %s: Extracting information' % (self.IE_NAME, video_id))

 
 

-       def _real_extract(self, url):
-               mobj = re.match(self._VALID_URL, url)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
-                       return
-               video_id = mobj.group(1).decode('utf-8')
+    def _real_extract(self, url):
+        mobj = re.match(self._VALID_URL, url)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
+            return
+        video_id = mobj.group(1).decode('utf-8')

 
 

-               self.report_webpage(video_id)
+        self.report_webpage(video_id)

 
 

-               request = urllib2.Request(r'http://www.xvideos.com/video' + video_id)
-               try:
-                       webpage = urllib2.urlopen(request).read()
-               except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-                       self._downloader.trouble(u'ERROR: unable to download video webpage: %s' % str(err))
-                       return
+        request = compat_urllib_request.Request(r'http://www.xvideos.com/video' + video_id)
+        try:
+            webpage = compat_urllib_request.urlopen(request).read()
+        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+            self._downloader.trouble(u'ERROR: unable to download video webpage: %s' % compat_str(err))
+            return

 
 

-               self.report_extraction(video_id)
+        self.report_extraction(video_id)

 
 
 
 

-               # Extract video URL
-               mobj = re.search(r'flv_url=(.+?)&', webpage)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: unable to extract video url')
-                       return
-               video_url = urllib2.unquote(mobj.group(1).decode('utf-8'))
+        # Extract video URL
+        mobj = re.search(r'flv_url=(.+?)&', webpage)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: unable to extract video url')
+            return
+        video_url = compat_urllib_parse.unquote(mobj.group(1).decode('utf-8'))

 
 
 
 

-               # Extract title
-               mobj = re.search(r'<title>(.*?)\s+-\s+XVID', webpage)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: unable to extract video title')
-                       return
-               video_title = mobj.group(1).decode('utf-8')
+        # Extract title
+        mobj = re.search(r'<title>(.*?)\s+-\s+XVID', webpage)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: unable to extract video title')
+            return
+        video_title = mobj.group(1).decode('utf-8')

 
 
 
 

-               # Extract video thumbnail
-               mobj = re.search(r'http://(?:img.*?\.)xvideos.com/videos/thumbs/[a-fA-F0-9]+/[a-fA-F0-9]+/[a-fA-F0-9]+/[a-fA-F0-9]+/([a-fA-F0-9.]+jpg)', webpage)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: unable to extract video thumbnail')
-                       return
-               video_thumbnail = mobj.group(0).decode('utf-8')
+        # Extract video thumbnail
+        mobj = re.search(r'http://(?:img.*?\.)xvideos.com/videos/thumbs/[a-fA-F0-9]+/[a-fA-F0-9]+/[a-fA-F0-9]+/[a-fA-F0-9]+/([a-fA-F0-9.]+jpg)', webpage)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: unable to extract video thumbnail')
+            return
+        video_thumbnail = mobj.group(0).decode('utf-8')

 
 

-               info = {
-                       'id': video_id,
-                       'url': video_url,
-                       'uploader': None,
-                       'upload_date': None,
-                       'title': video_title,
-                       'ext': 'flv',
-                       'format': 'flv',
-                       'thumbnail': video_thumbnail,
-                       'description': None,
-                       'player_url': None,
-               }
+        info = {
+            'id': video_id,
+            'url': video_url,
+            'uploader': None,
+            'upload_date': None,
+            'title': video_title,
+            'ext': 'flv',
+            'thumbnail': video_thumbnail,
+            'description': None,
+        }

 
 

-               return [info]
+        return [info]

 
 
 class SoundcloudIE(InfoExtractor):
 
 
 class SoundcloudIE(InfoExtractor):

-       """Information extractor for soundcloud.com
-          To access the media, the uid of the song and a stream token
-          must be extracted from the page source and the script must make
-          a request to media.soundcloud.com/crossdomain.xml. Then
-          the media can be grabbed by requesting from an url composed
-          of the stream token and uid
-        """
-
-       _VALID_URL = r'^(?:https?://)?(?:www\.)?soundcloud\.com/([\w\d-]+)/([\w\d-]+)'
-       IE_NAME = u'soundcloud'
-
-       def __init__(self, downloader=None):
-               InfoExtractor.__init__(self, downloader)
-
-       def report_webpage(self, video_id):
-               """Report information extraction."""
-               self._downloader.to_screen(u'[%s] %s: Downloading webpage' % (self.IE_NAME, video_id))
-
-       def report_extraction(self, video_id):
-               """Report information extraction."""
-               self._downloader.to_screen(u'[%s] %s: Extracting information' % (self.IE_NAME, video_id))
-
-       def _real_extract(self, url):
-               mobj = re.match(self._VALID_URL, url)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
-                       return
-
-               # extract uploader (which is in the url)
-               uploader = mobj.group(1).decode('utf-8')
-               # extract simple title (uploader + slug of song title)
-               slug_title =  mobj.group(2).decode('utf-8')
-               simple_title = uploader + u'-' + slug_title
-
-               self.report_webpage('%s/%s' % (uploader, slug_title))
-
-               request = urllib2.Request('http://soundcloud.com/%s/%s' % (uploader, slug_title))
-               try:
-                       webpage = urllib2.urlopen(request).read()
-               except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-                       self._downloader.trouble(u'ERROR: unable to download video webpage: %s' % str(err))
-                       return
-
-               self.report_extraction('%s/%s' % (uploader, slug_title))
-
-               # extract uid and stream token that soundcloud hands out for access
-               mobj = re.search('"uid":"([\w\d]+?)".*?stream_token=([\w\d]+)', webpage)
-               if mobj:
-                       video_id = mobj.group(1)
-                       stream_token = mobj.group(2)
-
-               # extract unsimplified title
-               mobj = re.search('"title":"(.*?)",', webpage)
-               if mobj:
-                       title = mobj.group(1).decode('utf-8')
-               else:
-                       title = simple_title
-
-               # construct media url (with uid/token)
-               mediaURL = "http://media.soundcloud.com/stream/%s?stream_token=%s"
-               mediaURL = mediaURL % (video_id, stream_token)
-
-               # description
-               description = u'No description available'
-               mobj = re.search('track-description-value"><p>(.*?)</p>', webpage)
-               if mobj:
-                       description = mobj.group(1)
-               
-               # upload date
-               upload_date = None
-               mobj = re.search("pretty-date'>on ([\w]+ [\d]+, [\d]+ \d+:\d+)</abbr></h2>", webpage)
-               if mobj:
-                       try:
-                               upload_date = datetime.datetime.strptime(mobj.group(1), '%B %d, %Y %H:%M').strftime('%Y%m%d')
-                       except Exception, e:
-                               self._downloader.to_stderr(str(e))
-
-               # for soundcloud, a request to a cross domain is required for cookies
-               request = urllib2.Request('http://media.soundcloud.com/crossdomain.xml', std_headers)
-
-               return [{
-                       'id':           video_id.decode('utf-8'),
-                       'url':          mediaURL,
-                       'uploader':     uploader.decode('utf-8'),
-                       'upload_date':  upload_date,
-                       'title':        title,
-                       'ext':          u'mp3',
-                       'format':       u'NA',
-                       'player_url':   None,
-                       'description': description.decode('utf-8')
-               }]
+    """Information extractor for soundcloud.com
+       To access the media, the uid of the song and a stream token
+       must be extracted from the page source and the script must make
+       a request to media.soundcloud.com/crossdomain.xml. Then
+       the media can be grabbed by requesting from an url composed
+       of the stream token and uid
+     """
+
+    _VALID_URL = r'^(?:https?://)?(?:www\.)?soundcloud\.com/([\w\d-]+)/([\w\d-]+)'
+    IE_NAME = u'soundcloud'
+
+    def __init__(self, downloader=None):
+        InfoExtractor.__init__(self, downloader)
+
+    def report_resolve(self, video_id):
+        """Report information extraction."""
+        self._downloader.to_screen(u'[%s] %s: Resolving id' % (self.IE_NAME, video_id))
+
+    def report_extraction(self, video_id):
+        """Report information extraction."""
+        self._downloader.to_screen(u'[%s] %s: Retrieving stream' % (self.IE_NAME, video_id))
+
+    def _real_extract(self, url):
+        mobj = re.match(self._VALID_URL, url)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
+            return
+
+        # extract uploader (which is in the url)
+        uploader = mobj.group(1)
+        # extract simple title (uploader + slug of song title)
+        slug_title =  mobj.group(2)
+        simple_title = uploader + u'-' + slug_title
+
+        self.report_resolve('%s/%s' % (uploader, slug_title))
+
+        url = 'http://soundcloud.com/%s/%s' % (uploader, slug_title)
+        resolv_url = 'http://api.soundcloud.com/resolve.json?url=' + url + '&client_id=b45b1aa10f1ac2941910a7f0d10f8e28'
+        request = compat_urllib_request.Request(resolv_url)
+        try:
+            info_json_bytes = compat_urllib_request.urlopen(request).read()
+            info_json = info_json_bytes.decode('utf-8')
+        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+            self._downloader.trouble(u'ERROR: unable to download video webpage: %s' % compat_str(err))
+            return
+
+        info = json.loads(info_json)
+        video_id = info['id']
+        self.report_extraction('%s/%s' % (uploader, slug_title))
+
+        streams_url = 'https://api.sndcdn.com/i1/tracks/' + str(video_id) + '/streams?client_id=b45b1aa10f1ac2941910a7f0d10f8e28'
+        request = compat_urllib_request.Request(streams_url)
+        try:
+            stream_json_bytes = compat_urllib_request.urlopen(request).read()
+            stream_json = stream_json_bytes.decode('utf-8')
+        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+            self._downloader.trouble(u'ERROR: unable to download video webpage: %s' % compat_str(err))
+            return
+
+        streams = json.loads(stream_json)
+        mediaURL = streams['http_mp3_128_url']
+
+        return [{
+            'id':       info['id'],
+            'url':      mediaURL,
+            'uploader': info['user']['username'],
+            'upload_date':  info['created_at'],
+            'title':    info['title'],
+            'ext':      u'mp3',
+            'description': info['description'],
+        }]

 
 
 class InfoQIE(InfoExtractor):
 
 
 class InfoQIE(InfoExtractor):

-       """Information extractor for infoq.com"""
-
-       _VALID_URL = r'^(?:https?://)?(?:www\.)?infoq\.com/[^/]+/[^/]+$'
-       IE_NAME = u'infoq'
-
-       def report_webpage(self, video_id):
-               """Report information extraction."""
-               self._downloader.to_screen(u'[%s] %s: Downloading webpage' % (self.IE_NAME, video_id))
-
-       def report_extraction(self, video_id):
-               """Report information extraction."""
-               self._downloader.to_screen(u'[%s] %s: Extracting information' % (self.IE_NAME, video_id))
-
-       def _real_extract(self, url):
-               mobj = re.match(self._VALID_URL, url)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
-                       return
-
-               self.report_webpage(url)
-
-               request = urllib2.Request(url)
-               try:
-                       webpage = urllib2.urlopen(request).read()
-               except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-                       self._downloader.trouble(u'ERROR: unable to download video webpage: %s' % str(err))
-                       return
-
-               self.report_extraction(url)
-
-
-               # Extract video URL
-               mobj = re.search(r"jsclassref='([^']*)'", webpage)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: unable to extract video url')
-                       return
-               video_url = 'rtmpe://video.infoq.com/cfx/st/' + urllib2.unquote(mobj.group(1).decode('base64'))
-
-
-               # Extract title
-               mobj = re.search(r'contentTitle = "(.*?)";', webpage)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: unable to extract video title')
-                       return
-               video_title = mobj.group(1).decode('utf-8')
-
-               # Extract description
-               video_description = u'No description available.'
-               mobj = re.search(r'<meta name="description" content="(.*)"(?:\s*/)?>', webpage)
-               if mobj is not None:
-                       video_description = mobj.group(1).decode('utf-8')
-
-               video_filename = video_url.split('/')[-1]
-               video_id, extension = video_filename.split('.')
-
-               info = {
-                       'id': video_id,
-                       'url': video_url,
-                       'uploader': None,
-                       'upload_date': None,
-                       'title': video_title,
-                       'ext': extension,
-                       'format': extension, # Extension is always(?) mp4, but seems to be flv
-                       'thumbnail': None,
-                       'description': video_description,
-                       'player_url': None,
-               }
-
-               return [info]
+    """Information extractor for infoq.com"""
+
+    _VALID_URL = r'^(?:https?://)?(?:www\.)?infoq\.com/[^/]+/[^/]+$'
+    IE_NAME = u'infoq'
+
+    def report_webpage(self, video_id):
+        """Report information extraction."""
+        self._downloader.to_screen(u'[%s] %s: Downloading webpage' % (self.IE_NAME, video_id))
+
+    def report_extraction(self, video_id):
+        """Report information extraction."""
+        self._downloader.to_screen(u'[%s] %s: Extracting information' % (self.IE_NAME, video_id))
+
+    def _real_extract(self, url):
+        mobj = re.match(self._VALID_URL, url)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
+            return
+
+        self.report_webpage(url)
+
+        request = compat_urllib_request.Request(url)
+        try:
+            webpage = compat_urllib_request.urlopen(request).read()
+        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+            self._downloader.trouble(u'ERROR: unable to download video webpage: %s' % compat_str(err))
+            return
+
+        self.report_extraction(url)
+
+
+        # Extract video URL
+        mobj = re.search(r"jsclassref='([^']*)'", webpage)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: unable to extract video url')
+            return
+        video_url = 'rtmpe://video.infoq.com/cfx/st/' + compat_urllib_parse.unquote(mobj.group(1).decode('base64'))
+
+
+        # Extract title
+        mobj = re.search(r'contentTitle = "(.*?)";', webpage)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: unable to extract video title')
+            return
+        video_title = mobj.group(1).decode('utf-8')
+
+        # Extract description
+        video_description = u'No description available.'
+        mobj = re.search(r'<meta name="description" content="(.*)"(?:\s*/)?>', webpage)
+        if mobj is not None:
+            video_description = mobj.group(1).decode('utf-8')
+
+        video_filename = video_url.split('/')[-1]
+        video_id, extension = video_filename.split('.')
+
+        info = {
+            'id': video_id,
+            'url': video_url,
+            'uploader': None,
+            'upload_date': None,
+            'title': video_title,
+            'ext': extension, # Extension is always(?) mp4, but seems to be flv
+            'thumbnail': None,
+            'description': video_description,
+        }
+
+        return [info]

 
 class MixcloudIE(InfoExtractor):
 
 class MixcloudIE(InfoExtractor):

-       """Information extractor for www.mixcloud.com"""
-       _VALID_URL = r'^(?:https?://)?(?:www\.)?mixcloud\.com/([\w\d-]+)/([\w\d-]+)'
-       IE_NAME = u'mixcloud'
-
-       def __init__(self, downloader=None):
-               InfoExtractor.__init__(self, downloader)
-
-       def report_download_json(self, file_id):
-               """Report JSON download."""
-               self._downloader.to_screen(u'[%s] Downloading json' % self.IE_NAME)
-
-       def report_extraction(self, file_id):
-               """Report information extraction."""
-               self._downloader.to_screen(u'[%s] %s: Extracting information' % (self.IE_NAME, file_id))
-
-       def get_urls(self, jsonData, fmt, bitrate='best'):
-               """Get urls from 'audio_formats' section in json"""
-               file_url = None
-               try:
-                       bitrate_list = jsonData[fmt]
-                       if bitrate is None or bitrate == 'best' or bitrate not in bitrate_list:
-                               bitrate = max(bitrate_list) # select highest
-
-                       url_list = jsonData[fmt][bitrate]
-               except TypeError: # we have no bitrate info.
-                       url_list = jsonData[fmt]
-               return url_list
-
-       def check_urls(self, url_list):
-               """Returns 1st active url from list"""
-               for url in url_list:
-                       try:
-                               urllib2.urlopen(url)
-                               return url
-                       except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-                               url = None
-
-               return None
-
-       def _print_formats(self, formats):
-               print 'Available formats:'
-               for fmt in formats.keys():
-                       for b in formats[fmt]:
-                               try:
-                                       ext = formats[fmt][b][0]
-                                       print '%s\t%s\t[%s]' % (fmt, b, ext.split('.')[-1])
-                               except TypeError: # we have no bitrate info
-                                       ext = formats[fmt][0]
-                                       print '%s\t%s\t[%s]' % (fmt, '??', ext.split('.')[-1])
-                                       break
-
-       def _real_extract(self, url):
-               mobj = re.match(self._VALID_URL, url)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
-                       return
-               # extract uploader & filename from url
-               uploader = mobj.group(1).decode('utf-8')
-               file_id = uploader + "-" + mobj.group(2).decode('utf-8')
-
-               # construct API request
-               file_url = 'http://www.mixcloud.com/api/1/cloudcast/' + '/'.join(url.split('/')[-3:-1]) + '.json'
-               # retrieve .json file with links to files
-               request = urllib2.Request(file_url)
-               try:
-                       self.report_download_json(file_url)
-                       jsonData = urllib2.urlopen(request).read()
-               except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-                       self._downloader.trouble(u'ERROR: Unable to retrieve file: %s' % str(err))
-                       return
-
-               # parse JSON
-               json_data = json.loads(jsonData)
-               player_url = json_data['player_swf_url']
-               formats = dict(json_data['audio_formats'])
-
-               req_format = self._downloader.params.get('format', None)
-               bitrate = None
-
-               if self._downloader.params.get('listformats', None):
-                       self._print_formats(formats)
-                       return
-
-               if req_format is None or req_format == 'best':
-                       for format_param in formats.keys():
-                               url_list = self.get_urls(formats, format_param)
-                               # check urls
-                               file_url = self.check_urls(url_list)
-                               if file_url is not None:
-                                       break # got it!
-               else:
-                       if req_format not in formats.keys():
-                               self._downloader.trouble(u'ERROR: format is not available')
-                               return
-
-                       url_list = self.get_urls(formats, req_format)
-                       file_url = self.check_urls(url_list)
-                       format_param = req_format
-
-               return [{
-                       'id': file_id.decode('utf-8'),
-                       'url': file_url.decode('utf-8'),
-                       'uploader':     uploader.decode('utf-8'),
-                       'upload_date': u'NA',
-                       'title': json_data['name'],
-                       'ext': file_url.split('.')[-1].decode('utf-8'),
-                       'format': (format_param is None and u'NA' or format_param.decode('utf-8')),
-                       'thumbnail': json_data['thumbnail_url'],
-                       'description': json_data['description'],
-                       'player_url': player_url.decode('utf-8'),
-               }]
+    """Information extractor for www.mixcloud.com"""
+    _VALID_URL = r'^(?:https?://)?(?:www\.)?mixcloud\.com/([\w\d-]+)/([\w\d-]+)'
+    IE_NAME = u'mixcloud'
+
+    def __init__(self, downloader=None):
+        InfoExtractor.__init__(self, downloader)
+
+    def report_download_json(self, file_id):
+        """Report JSON download."""
+        self._downloader.to_screen(u'[%s] Downloading json' % self.IE_NAME)
+
+    def report_extraction(self, file_id):
+        """Report information extraction."""
+        self._downloader.to_screen(u'[%s] %s: Extracting information' % (self.IE_NAME, file_id))
+
+    def get_urls(self, jsonData, fmt, bitrate='best'):
+        """Get urls from 'audio_formats' section in json"""
+        file_url = None
+        try:
+            bitrate_list = jsonData[fmt]
+            if bitrate is None or bitrate == 'best' or bitrate not in bitrate_list:
+                bitrate = max(bitrate_list) # select highest
+
+            url_list = jsonData[fmt][bitrate]
+        except TypeError: # we have no bitrate info.
+            url_list = jsonData[fmt]
+        return url_list
+
+    def check_urls(self, url_list):
+        """Returns 1st active url from list"""
+        for url in url_list:
+            try:
+                compat_urllib_request.urlopen(url)
+                return url
+            except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+                url = None
+
+        return None
+
+    def _print_formats(self, formats):
+        print('Available formats:')
+        for fmt in formats.keys():
+            for b in formats[fmt]:
+                try:
+                    ext = formats[fmt][b][0]
+                    print('%s\t%s\t[%s]' % (fmt, b, ext.split('.')[-1]))
+                except TypeError: # we have no bitrate info
+                    ext = formats[fmt][0]
+                    print('%s\t%s\t[%s]' % (fmt, '??', ext.split('.')[-1]))
+                    break
+
+    def _real_extract(self, url):
+        mobj = re.match(self._VALID_URL, url)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
+            return
+        # extract uploader & filename from url
+        uploader = mobj.group(1).decode('utf-8')
+        file_id = uploader + "-" + mobj.group(2).decode('utf-8')
+
+        # construct API request
+        file_url = 'http://www.mixcloud.com/api/1/cloudcast/' + '/'.join(url.split('/')[-3:-1]) + '.json'
+        # retrieve .json file with links to files
+        request = compat_urllib_request.Request(file_url)
+        try:
+            self.report_download_json(file_url)
+            jsonData = compat_urllib_request.urlopen(request).read()
+        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+            self._downloader.trouble(u'ERROR: Unable to retrieve file: %s' % compat_str(err))
+            return
+
+        # parse JSON
+        json_data = json.loads(jsonData)
+        player_url = json_data['player_swf_url']
+        formats = dict(json_data['audio_formats'])
+
+        req_format = self._downloader.params.get('format', None)
+        bitrate = None
+
+        if self._downloader.params.get('listformats', None):
+            self._print_formats(formats)
+            return
+
+        if req_format is None or req_format == 'best':
+            for format_param in formats.keys():
+                url_list = self.get_urls(formats, format_param)
+                # check urls
+                file_url = self.check_urls(url_list)
+                if file_url is not None:
+                    break # got it!
+        else:
+            if req_format not in formats.keys():
+                self._downloader.trouble(u'ERROR: format is not available')
+                return
+
+            url_list = self.get_urls(formats, req_format)
+            file_url = self.check_urls(url_list)
+            format_param = req_format
+
+        return [{
+            'id': file_id.decode('utf-8'),
+            'url': file_url.decode('utf-8'),
+            'uploader': uploader.decode('utf-8'),
+            'upload_date': None,
+            'title': json_data['name'],
+            'ext': file_url.split('.')[-1].decode('utf-8'),
+            'format': (format_param is None and u'NA' or format_param.decode('utf-8')),
+            'thumbnail': json_data['thumbnail_url'],
+            'description': json_data['description'],
+            'player_url': player_url.decode('utf-8'),
+        }]

 
 class StanfordOpenClassroomIE(InfoExtractor):
 
 class StanfordOpenClassroomIE(InfoExtractor):

-       """Information extractor for Stanford's Open ClassRoom"""
-
-       _VALID_URL = r'^(?:https?://)?openclassroom.stanford.edu(?P<path>/?|(/MainFolder/(?:HomePage|CoursePage|VideoPage)\.php([?]course=(?P<course>[^&]+)(&video=(?P<video>[^&]+))?(&.*)?)?))$'
-       IE_NAME = u'stanfordoc'
-
-       def report_download_webpage(self, objid):
-               """Report information extraction."""
-               self._downloader.to_screen(u'[%s] %s: Downloading webpage' % (self.IE_NAME, objid))
-
-       def report_extraction(self, video_id):
-               """Report information extraction."""
-               self._downloader.to_screen(u'[%s] %s: Extracting information' % (self.IE_NAME, video_id))
-
-       def _real_extract(self, url):
-               mobj = re.match(self._VALID_URL, url)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
-                       return
-
-               if mobj.group('course') and mobj.group('video'): # A specific video
-                       course = mobj.group('course')
-                       video = mobj.group('video')
-                       info = {
-                               'id': course + '_' + video,
-                       }
-
-                       self.report_extraction(info['id'])
-                       baseUrl = 'http://openclassroom.stanford.edu/MainFolder/courses/' + course + '/videos/'
-                       xmlUrl = baseUrl + video + '.xml'
-                       try:
-                               metaXml = urllib2.urlopen(xmlUrl).read()
-                       except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-                               self._downloader.trouble(u'ERROR: unable to download video info XML: %s' % unicode(err))
-                               return
-                       mdoc = xml.etree.ElementTree.fromstring(metaXml)
-                       try:
-                               info['title'] = mdoc.findall('./title')[0].text
-                               info['url'] = baseUrl + mdoc.findall('./videoFile')[0].text
-                       except IndexError:
-                               self._downloader.trouble(u'\nERROR: Invalid metadata XML file')
-                               return
-                       info['ext'] = info['url'].rpartition('.')[2]
-                       info['format'] = info['ext']
-                       return [info]
-               elif mobj.group('course'): # A course page
-                       course = mobj.group('course')
-                       info = {
-                               'id': course,
-                               'type': 'playlist',
-                       }
-
-                       self.report_download_webpage(info['id'])
-                       try:
-                               coursepage = urllib2.urlopen(url).read()
-                       except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-                               self._downloader.trouble(u'ERROR: unable to download course info page: ' + unicode(err))
-                               return
-
-                       m = re.search('<h1>([^<]+)</h1>', coursepage)
-                       if m:
-                               info['title'] = unescapeHTML(m.group(1))
-                       else:
-                               info['title'] = info['id']
-
-                       m = re.search('<description>([^<]+)</description>', coursepage)
-                       if m:
-                               info['description'] = unescapeHTML(m.group(1))
-
-                       links = orderedSet(re.findall('<a href="(VideoPage.php\?[^"]+)">', coursepage))
-                       info['list'] = [
-                               {
-                                       'type': 'reference',
-                                       'url': 'http://openclassroom.stanford.edu/MainFolder/' + unescapeHTML(vpage),
-                               }
-                                       for vpage in links]
-                       results = []
-                       for entry in info['list']:
-                               assert entry['type'] == 'reference'
-                               results += self.extract(entry['url'])
-                       return results
-                       
-               else: # Root page
-                       info = {
-                               'id': 'Stanford OpenClassroom',
-                               'type': 'playlist',
-                       }
-
-                       self.report_download_webpage(info['id'])
-                       rootURL = 'http://openclassroom.stanford.edu/MainFolder/HomePage.php'
-                       try:
-                               rootpage = urllib2.urlopen(rootURL).read()
-                       except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-                               self._downloader.trouble(u'ERROR: unable to download course info page: ' + unicode(err))
-                               return
-
-                       info['title'] = info['id']
-
-                       links = orderedSet(re.findall('<a href="(CoursePage.php\?[^"]+)">', rootpage))
-                       info['list'] = [
-                               {
-                                       'type': 'reference',
-                                       'url': 'http://openclassroom.stanford.edu/MainFolder/' + unescapeHTML(cpage),
-                               }
-                                       for cpage in links]
-
-                       results = []
-                       for entry in info['list']:
-                               assert entry['type'] == 'reference'
-                               results += self.extract(entry['url'])
-                       return results
+    """Information extractor for Stanford's Open ClassRoom"""
+
+    _VALID_URL = r'^(?:https?://)?openclassroom.stanford.edu(?P<path>/?|(/MainFolder/(?:HomePage|CoursePage|VideoPage)\.php([?]course=(?P<course>[^&]+)(&video=(?P<video>[^&]+))?(&.*)?)?))$'
+    IE_NAME = u'stanfordoc'
+
+    def report_download_webpage(self, objid):
+        """Report information extraction."""
+        self._downloader.to_screen(u'[%s] %s: Downloading webpage' % (self.IE_NAME, objid))
+
+    def report_extraction(self, video_id):
+        """Report information extraction."""
+        self._downloader.to_screen(u'[%s] %s: Extracting information' % (self.IE_NAME, video_id))
+
+    def _real_extract(self, url):
+        mobj = re.match(self._VALID_URL, url)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
+            return
+
+        if mobj.group('course') and mobj.group('video'): # A specific video
+            course = mobj.group('course')
+            video = mobj.group('video')
+            info = {
+                'id': course + '_' + video,
+                'uploader': None,
+                'upload_date': None,
+            }
+
+            self.report_extraction(info['id'])
+            baseUrl = 'http://openclassroom.stanford.edu/MainFolder/courses/' + course + '/videos/'
+            xmlUrl = baseUrl + video + '.xml'
+            try:
+                metaXml = compat_urllib_request.urlopen(xmlUrl).read()
+            except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+                self._downloader.trouble(u'ERROR: unable to download video info XML: %s' % compat_str(err))
+                return
+            mdoc = xml.etree.ElementTree.fromstring(metaXml)
+            try:
+                info['title'] = mdoc.findall('./title')[0].text
+                info['url'] = baseUrl + mdoc.findall('./videoFile')[0].text
+            except IndexError:
+                self._downloader.trouble(u'\nERROR: Invalid metadata XML file')
+                return
+            info['ext'] = info['url'].rpartition('.')[2]
+            return [info]
+        elif mobj.group('course'): # A course page
+            course = mobj.group('course')
+            info = {
+                'id': course,
+                'type': 'playlist',
+                'uploader': None,
+                'upload_date': None,
+            }
+
+            self.report_download_webpage(info['id'])
+            try:
+                coursepage = compat_urllib_request.urlopen(url).read()
+            except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+                self._downloader.trouble(u'ERROR: unable to download course info page: ' + compat_str(err))
+                return
+
+            m = re.search('<h1>([^<]+)</h1>', coursepage)
+            if m:
+                info['title'] = unescapeHTML(m.group(1))
+            else:
+                info['title'] = info['id']
+
+            m = re.search('<description>([^<]+)</description>', coursepage)
+            if m:
+                info['description'] = unescapeHTML(m.group(1))
+
+            links = orderedSet(re.findall('<a href="(VideoPage.php\?[^"]+)">', coursepage))
+            info['list'] = [
+                {
+                    'type': 'reference',
+                    'url': 'http://openclassroom.stanford.edu/MainFolder/' + unescapeHTML(vpage),
+                }
+                    for vpage in links]
+            results = []
+            for entry in info['list']:
+                assert entry['type'] == 'reference'
+                results += self.extract(entry['url'])
+            return results
+            
+        else: # Root page
+            info = {
+                'id': 'Stanford OpenClassroom',
+                'type': 'playlist',
+                'uploader': None,
+                'upload_date': None,
+            }
+
+            self.report_download_webpage(info['id'])
+            rootURL = 'http://openclassroom.stanford.edu/MainFolder/HomePage.php'
+            try:
+                rootpage = compat_urllib_request.urlopen(rootURL).read()
+            except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+                self._downloader.trouble(u'ERROR: unable to download course info page: ' + compat_str(err))
+                return
+
+            info['title'] = info['id']
+
+            links = orderedSet(re.findall('<a href="(CoursePage.php\?[^"]+)">', rootpage))
+            info['list'] = [
+                {
+                    'type': 'reference',
+                    'url': 'http://openclassroom.stanford.edu/MainFolder/' + unescapeHTML(cpage),
+                }
+                    for cpage in links]
+
+            results = []
+            for entry in info['list']:
+                assert entry['type'] == 'reference'
+                results += self.extract(entry['url'])
+            return results

 
 class MTVIE(InfoExtractor):
 
 class MTVIE(InfoExtractor):

-       """Information extractor for MTV.com"""
-
-       _VALID_URL = r'^(?P<proto>https?://)?(?:www\.)?mtv\.com/videos/[^/]+/(?P<videoid>[0-9]+)/[^/]+$'
-       IE_NAME = u'mtv'
-
-       def report_webpage(self, video_id):
-               """Report information extraction."""
-               self._downloader.to_screen(u'[%s] %s: Downloading webpage' % (self.IE_NAME, video_id))
-
-       def report_extraction(self, video_id):
-               """Report information extraction."""
-               self._downloader.to_screen(u'[%s] %s: Extracting information' % (self.IE_NAME, video_id))
-
-       def _real_extract(self, url):
-               mobj = re.match(self._VALID_URL, url)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
-                       return
-               if not mobj.group('proto'):
-                       url = 'http://' + url
-               video_id = mobj.group('videoid')
-               self.report_webpage(video_id)
-
-               request = urllib2.Request(url)
-               try:
-                       webpage = urllib2.urlopen(request).read()
-               except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-                       self._downloader.trouble(u'ERROR: unable to download video webpage: %s' % str(err))
-                       return
-
-               mobj = re.search(r'<meta name="mtv_vt" content="([^"]+)"/>', webpage)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: unable to extract song name')
-                       return
-               song_name = unescapeHTML(mobj.group(1).decode('iso-8859-1'))
-               mobj = re.search(r'<meta name="mtv_an" content="([^"]+)"/>', webpage)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: unable to extract performer')
-                       return
-               performer = unescapeHTML(mobj.group(1).decode('iso-8859-1'))
-               video_title = performer + ' - ' + song_name 
-
-               mobj = re.search(r'<meta name="mtvn_uri" content="([^"]+)"/>', webpage)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: unable to mtvn_uri')
-                       return
-               mtvn_uri = mobj.group(1)
-
-               mobj = re.search(r'MTVN.Player.defaultPlaylistId = ([0-9]+);', webpage)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: unable to extract content id')
-                       return
-               content_id = mobj.group(1)
-
-               videogen_url = 'http://www.mtv.com/player/includes/mediaGen.jhtml?uri=' + mtvn_uri + '&id=' + content_id + '&vid=' + video_id + '&ref=www.mtvn.com&viewUri=' + mtvn_uri
-               self.report_extraction(video_id)
-               request = urllib2.Request(videogen_url)
-               try:
-                       metadataXml = urllib2.urlopen(request).read()
-               except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-                       self._downloader.trouble(u'ERROR: unable to download video metadata: %s' % str(err))
-                       return
-
-               mdoc = xml.etree.ElementTree.fromstring(metadataXml)
-               renditions = mdoc.findall('.//rendition')
-
-               # For now, always pick the highest quality.
-               rendition = renditions[-1]
-
-               try:
-                       _,_,ext = rendition.attrib['type'].partition('/')
-                       format = ext + '-' + rendition.attrib['width'] + 'x' + rendition.attrib['height'] + '_' + rendition.attrib['bitrate']
-                       video_url = rendition.find('./src').text
-               except KeyError:
-                       self._downloader.trouble('Invalid rendition field.')
-                       return
-
-               info = {
-                       'id': video_id,
-                       'url': video_url,
-                       'uploader': performer,
-                       'title': video_title,
-                       'ext': ext,
-                       'format': format,
-               }
-
-               return [info]
+    """Information extractor for MTV.com"""
+
+    _VALID_URL = r'^(?P<proto>https?://)?(?:www\.)?mtv\.com/videos/[^/]+/(?P<videoid>[0-9]+)/[^/]+$'
+    IE_NAME = u'mtv'
+
+    def report_webpage(self, video_id):
+        """Report information extraction."""
+        self._downloader.to_screen(u'[%s] %s: Downloading webpage' % (self.IE_NAME, video_id))
+
+    def report_extraction(self, video_id):
+        """Report information extraction."""
+        self._downloader.to_screen(u'[%s] %s: Extracting information' % (self.IE_NAME, video_id))
+
+    def _real_extract(self, url):
+        mobj = re.match(self._VALID_URL, url)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
+            return
+        if not mobj.group('proto'):
+            url = 'http://' + url
+        video_id = mobj.group('videoid')
+        self.report_webpage(video_id)
+
+        request = compat_urllib_request.Request(url)
+        try:
+            webpage = compat_urllib_request.urlopen(request).read()
+        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+            self._downloader.trouble(u'ERROR: unable to download video webpage: %s' % compat_str(err))
+            return
+
+        mobj = re.search(r'<meta name="mtv_vt" content="([^"]+)"/>', webpage)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: unable to extract song name')
+            return
+        song_name = unescapeHTML(mobj.group(1).decode('iso-8859-1'))
+        mobj = re.search(r'<meta name="mtv_an" content="([^"]+)"/>', webpage)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: unable to extract performer')
+            return
+        performer = unescapeHTML(mobj.group(1).decode('iso-8859-1'))
+        video_title = performer + ' - ' + song_name 
+
+        mobj = re.search(r'<meta name="mtvn_uri" content="([^"]+)"/>', webpage)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: unable to mtvn_uri')
+            return
+        mtvn_uri = mobj.group(1)
+
+        mobj = re.search(r'MTVN.Player.defaultPlaylistId = ([0-9]+);', webpage)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: unable to extract content id')
+            return
+        content_id = mobj.group(1)
+
+        videogen_url = 'http://www.mtv.com/player/includes/mediaGen.jhtml?uri=' + mtvn_uri + '&id=' + content_id + '&vid=' + video_id + '&ref=www.mtvn.com&viewUri=' + mtvn_uri
+        self.report_extraction(video_id)
+        request = compat_urllib_request.Request(videogen_url)
+        try:
+            metadataXml = compat_urllib_request.urlopen(request).read()
+        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+            self._downloader.trouble(u'ERROR: unable to download video metadata: %s' % compat_str(err))
+            return
+
+        mdoc = xml.etree.ElementTree.fromstring(metadataXml)
+        renditions = mdoc.findall('.//rendition')
+
+        # For now, always pick the highest quality.
+        rendition = renditions[-1]
+
+        try:
+            _,_,ext = rendition.attrib['type'].partition('/')
+            format = ext + '-' + rendition.attrib['width'] + 'x' + rendition.attrib['height'] + '_' + rendition.attrib['bitrate']
+            video_url = rendition.find('./src').text
+        except KeyError:
+            self._downloader.trouble('Invalid rendition field.')
+            return
+
+        info = {
+            'id': video_id,
+            'url': video_url,
+            'uploader': performer,
+            'upload_date': None,
+            'title': video_title,
+            'ext': ext,
+            'format': format,
+        }
+
+        return [info]
+
+
+class YoukuIE(InfoExtractor):
+
+    _VALID_URL =  r'(?:http://)?v\.youku\.com/v_show/id_(?P<ID>[A-Za-z0-9]+)\.html'
+    IE_NAME = u'Youku'
+
+    def __init__(self, downloader=None):
+        InfoExtractor.__init__(self, downloader)
+
+    def report_download_webpage(self, file_id):
+        """Report webpage download."""
+        self._downloader.to_screen(u'[Youku] %s: Downloading webpage' % file_id)
+
+    def report_extraction(self, file_id):
+        """Report information extraction."""
+        self._downloader.to_screen(u'[Youku] %s: Extracting information' % file_id)
+
+    def _gen_sid(self):
+        nowTime = int(time.time() * 1000)
+        random1 = random.randint(1000,1998)
+        random2 = random.randint(1000,9999)
+
+        return "%d%d%d" %(nowTime,random1,random2)
+
+    def _get_file_ID_mix_string(self, seed):
+        mixed = []
+        source = list("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ/\:._-1234567890")
+        seed = float(seed)
+        for i in range(len(source)):
+            seed  =  (seed * 211 + 30031 ) % 65536
+            index  =  math.floor(seed / 65536 * len(source) )
+            mixed.append(source[int(index)])
+            source.remove(source[int(index)])
+        #return ''.join(mixed)
+        return mixed
+
+    def _get_file_id(self, fileId, seed):
+        mixed = self._get_file_ID_mix_string(seed)
+        ids = fileId.split('*')
+        realId = []
+        for ch in ids:
+            if ch:
+                realId.append(mixed[int(ch)])
+        return ''.join(realId)
+
+    def _real_extract(self, url):
+        mobj = re.match(self._VALID_URL, url)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
+            return
+        video_id = mobj.group('ID')
+
+        info_url = 'http://v.youku.com/player/getPlayList/VideoIDS/' + video_id
+
+        request = compat_urllib_request.Request(info_url, None, std_headers)
+        try:
+            self.report_download_webpage(video_id)
+            jsondata = compat_urllib_request.urlopen(request).read()
+        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+            self._downloader.trouble(u'ERROR: Unable to retrieve video webpage: %s' % compat_str(err))
+            return
+
+        self.report_extraction(video_id)
+        try:
+            config = json.loads(jsondata)
+
+            video_title =  config['data'][0]['title']
+            seed = config['data'][0]['seed']
+
+            format = self._downloader.params.get('format', None)
+            supported_format = config['data'][0]['streamfileids'].keys()
+
+            if format is None or format == 'best':
+                if 'hd2' in supported_format:
+                    format = 'hd2'
+                else:
+                    format = 'flv'
+                ext = u'flv'
+            elif format == 'worst':
+                format = 'mp4'
+                ext = u'mp4'
+            else:
+                format = 'flv'
+                ext = u'flv'
+
+
+            fileid = config['data'][0]['streamfileids'][format]
+            seg_number = len(config['data'][0]['segs'][format])
+
+            keys=[]
+            for i in xrange(seg_number):
+                keys.append(config['data'][0]['segs'][format][i]['k'])
+
+            #TODO check error
+            #youku only could be viewed from mainland china
+        except:
+            self._downloader.trouble(u'ERROR: unable to extract info section')
+            return
+
+        files_info=[]
+        sid = self._gen_sid()
+        fileid = self._get_file_id(fileid, seed)
+
+        #column 8,9 of fileid represent the segment number
+        #fileid[7:9] should be changed
+        for index, key in enumerate(keys):
+
+            temp_fileid = '%s%02X%s' % (fileid[0:8], index, fileid[10:])
+            download_url = 'http://f.youku.com/player/getFlvPath/sid/%s_%02X/st/flv/fileid/%s?k=%s' % (sid, index, temp_fileid, key)
+
+            info = {
+                'id': '%s_part%02d' % (video_id, index),
+                'url': download_url,
+                'uploader': None,
+                'upload_date': None,
+                'title': video_title,
+                'ext': ext,
+            }
+            files_info.append(info)
+
+        return files_info
+
+
+class XNXXIE(InfoExtractor):
+    """Information extractor for xnxx.com"""
+
+    _VALID_URL = r'^http://video\.xnxx\.com/video([0-9]+)/(.*)'
+    IE_NAME = u'xnxx'
+    VIDEO_URL_RE = r'flv_url=(.*?)&amp;'
+    VIDEO_TITLE_RE = r'<title>(.*?)\s+-\s+XNXX.COM'
+    VIDEO_THUMB_RE = r'url_bigthumb=(.*?)&amp;'
+
+    def report_webpage(self, video_id):
+        """Report information extraction"""
+        self._downloader.to_screen(u'[%s] %s: Downloading webpage' % (self.IE_NAME, video_id))
+
+    def report_extraction(self, video_id):
+        """Report information extraction"""
+        self._downloader.to_screen(u'[%s] %s: Extracting information' % (self.IE_NAME, video_id))
+
+    def _real_extract(self, url):
+        mobj = re.match(self._VALID_URL, url)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
+            return
+        video_id = mobj.group(1).decode('utf-8')
+
+        self.report_webpage(video_id)
+
+        # Get webpage content
+        try:
+            webpage = compat_urllib_request.urlopen(url).read()
+        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+            self._downloader.trouble(u'ERROR: unable to download video webpage: %s' % err)
+            return
+
+        result = re.search(self.VIDEO_URL_RE, webpage)
+        if result is None:
+            self._downloader.trouble(u'ERROR: unable to extract video url')
+            return
+        video_url = compat_urllib_parse.unquote(result.group(1).decode('utf-8'))
+
+        result = re.search(self.VIDEO_TITLE_RE, webpage)
+        if result is None:
+            self._downloader.trouble(u'ERROR: unable to extract video title')
+            return
+        video_title = result.group(1).decode('utf-8')
+
+        result = re.search(self.VIDEO_THUMB_RE, webpage)
+        if result is None:
+            self._downloader.trouble(u'ERROR: unable to extract video thumbnail')
+            return
+        video_thumbnail = result.group(1).decode('utf-8')
+
+        return [{
+            'id': video_id,
+            'url': video_url,
+            'uploader': None,
+            'upload_date': None,
+            'title': video_title,
+            'ext': 'flv',
+            'thumbnail': video_thumbnail,
+            'description': None,
+        }]
+
+
+class GooglePlusIE(InfoExtractor):
+    """Information extractor for plus.google.com."""
+
+    _VALID_URL = r'(?:https://)?plus\.google\.com/(?:\w+/)*?(\d+)/posts/(\w+)'
+    IE_NAME = u'plus.google'
+
+    def __init__(self, downloader=None):
+        InfoExtractor.__init__(self, downloader)
+
+    def report_extract_entry(self, url):
+        """Report downloading extry"""
+        self._downloader.to_screen(u'[plus.google] Downloading entry: %s' % url.decode('utf-8'))
+
+    def report_date(self, upload_date):
+        """Report downloading extry"""
+        self._downloader.to_screen(u'[plus.google] Entry date: %s' % upload_date)
+
+    def report_uploader(self, uploader):
+        """Report downloading extry"""
+        self._downloader.to_screen(u'[plus.google] Uploader: %s' % uploader.decode('utf-8'))
+
+    def report_title(self, video_title):
+        """Report downloading extry"""
+        self._downloader.to_screen(u'[plus.google] Title: %s' % video_title.decode('utf-8'))
+
+    def report_extract_vid_page(self, video_page):
+        """Report information extraction."""
+        self._downloader.to_screen(u'[plus.google] Extracting video page: %s' % video_page.decode('utf-8'))
+
+    def _real_extract(self, url):
+        # Extract id from URL
+        mobj = re.match(self._VALID_URL, url)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: Invalid URL: %s' % url)
+            return
+
+        post_url = mobj.group(0)
+        video_id = mobj.group(2)
+
+        video_extension = 'flv'
+
+        # Step 1, Retrieve post webpage to extract further information
+        self.report_extract_entry(post_url)
+        request = compat_urllib_request.Request(post_url)
+        try:
+            webpage = compat_urllib_request.urlopen(request).read()
+        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+            self._downloader.trouble(u'ERROR: Unable to retrieve entry webpage: %s' % compat_str(err))
+            return
+
+        # Extract update date
+        upload_date = None
+        pattern = 'title="Timestamp">(.*?)</a>'
+        mobj = re.search(pattern, webpage)
+        if mobj:
+            upload_date = mobj.group(1)
+            # Convert timestring to a format suitable for filename
+            upload_date = datetime.datetime.strptime(upload_date, "%Y-%m-%d")
+            upload_date = upload_date.strftime('%Y%m%d')
+        self.report_date(upload_date)
+
+        # Extract uploader
+        uploader = None
+        pattern = r'rel\="author".*?>(.*?)</a>'
+        mobj = re.search(pattern, webpage)
+        if mobj:
+            uploader = mobj.group(1)
+        self.report_uploader(uploader)
+
+        # Extract title
+        # Get the first line for title
+        video_title = u'NA'
+        pattern = r'<meta name\=\"Description\" content\=\"(.*?)[\n<"]'
+        mobj = re.search(pattern, webpage)
+        if mobj:
+            video_title = mobj.group(1)
+        self.report_title(video_title)
+
+        # Step 2, Stimulate clicking the image box to launch video
+        pattern = '"(https\://plus\.google\.com/photos/.*?)",,"image/jpeg","video"\]'
+        mobj = re.search(pattern, webpage)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: unable to extract video page URL')
+
+        video_page = mobj.group(1)
+        request = compat_urllib_request.Request(video_page)
+        try:
+            webpage = compat_urllib_request.urlopen(request).read()
+        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+            self._downloader.trouble(u'ERROR: Unable to retrieve video webpage: %s' % compat_str(err))
+            return
+        self.report_extract_vid_page(video_page)
+
+
+        # Extract video links on video page
+        """Extract video links of all sizes"""
+        pattern = '\d+,\d+,(\d+),"(http\://redirector\.googlevideo\.com.*?)"'
+        mobj = re.findall(pattern, webpage)
+        if len(mobj) == 0:
+            self._downloader.trouble(u'ERROR: unable to extract video links')
+
+        # Sort in resolution
+        links = sorted(mobj)
+
+        # Choose the lowest of the sort, i.e. highest resolution
+        video_url = links[-1]
+        # Only get the url. The resolution part in the tuple has no use anymore
+        video_url = video_url[-1]
+        # Treat escaped \u0026 style hex
+        video_url = unicode(video_url, "unicode_escape")
+
+
+        return [{
+            'id':       video_id.decode('utf-8'),
+            'url':      video_url,
+            'uploader': uploader.decode('utf-8'),
+            'upload_date':  upload_date.decode('utf-8'),
+            'title':    video_title.decode('utf-8'),
+            'ext':      video_extension.decode('utf-8'),
+        }]