Merge branch 'master' of https://github.com/rg3/youtube-dl

Conflicts: .gitignore LATEST_VERSION Makefile youtube-dl youtube-dl.exe youtube_dl/InfoExtractors.py youtube_dl/__init__.py
2024-12-31 00:52:52 +08:00 · 2013-01-05 15:03:54 -05:00 · 2013-01-05 15:03:54 -05:00 · 258d5850c9
commit 258d5850c9
parent 187da2c093 8e5f761870
43 changed files with 6464 additions and 4994 deletions
--- a/.gitignore
+++ b/.gitignore
@ -1,17 +1,19 @@
 *.pyc
 *.pyo
 *~
+*.DS_Store
 wine-py2exe/
 py2exe.log
-youtube-dl
+*.kate-swp
+build/
+dist/
+MANIFEST
+README.txt
 youtube-dl.1
-LATEST_VERSION
-
-#OS X
-.DS_Store
-.AppleDouble
-.LSOverride
-Icon
-._*
-.Spotlight-V100
-.Trashes
+youtube-dl.bash-completion
+youtube-dl
+youtube-dl.exe
+youtube-dl.tar.gz
+.coverage
+cover/
+updates_key.pem
--- a/.tarignore
+++ b/.tarignore
@ -0,0 +1,17 @@
+updates_key.pem
+*.pyc
+*.pyo
+youtube-dl.exe
+wine-py2exe/
+py2exe.log
+*.kate-swp
+build/
+dist/
+MANIFEST
+*.DS_Store
+youtube-dl.tar.gz
+.coverage
+cover/
+__pycache__/
+.git/
+*~
--- a/.travis.yml
+++ b/.travis.yml
@ -1,9 +1,14 @@
 language: python
-#specify the python version
 python:
  - "2.6"
  - "2.7"
-#command to install the setup
-install:
-# command to run tests
-script: nosetests test --nocapture
+  - "3.3"
+script: nosetests test --verbose
+notifications:
+  email:
+    - filippo.valsorda@gmail.com
+    - phihag@phihag.de
+  irc:
+    channels:
+      - "irc.freenode.org#youtube-dl"
+    skip_join: true
--- a/14
+++ b/14
@ -0,0 +1,14 @@
+2013.01.02  Codename: GIULIA
+
+    * Add support for ComedyCentral clips <nto>
+    * Corrected Vimeo description fetching <Nick Daniels>
+    * Added the --no-post-overwrites argument <Barbu Paul - Gheorghe>
+    * --verbose offers more environment info
+    * New info_dict field: uploader_id
+    * New updates system, with signature checking
+    * New IEs: NBA, JustinTV, FunnyOrDie, TweetReel, Steam, Ustream
+    * Fixed IEs: BlipTv
+    * Fixed for Python 3 IEs: Xvideo, Youku, XNXX, Dailymotion, Vimeo, InfoQ
+    * Simplified IEs and test code
+    * Various (Python 3 and other) fixes
+    * Revamped and expanded tests
--- a/1
+++ b/1
@ -0,0 +1 @@
+2012.10.09
--- a/24
+++ b/24
@ -0,0 +1,24 @@
+This is free and unencumbered software released into the public domain.
+
+Anyone is free to copy, modify, publish, use, compile, sell, or
+distribute this software, either in source code form or as a compiled
+binary, for any purpose, commercial or non-commercial, and by any
+means.
+
+In jurisdictions that recognize copyright laws, the author or authors
+of this software dedicate any and all copyright interest in the
+software to the public domain. We make this dedication for the benefit
+of the public at large and to the detriment of our heirs and
+successors. We intend this dedication to be an overt act of
+relinquishment in perpetuity of all present and future rights to this
+software under copyright law.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
+
+For more information, please refer to <http://unlicense.org/>
--- a/MANIFEST.in
+++ b/MANIFEST.in
@ -0,0 +1,3 @@
+include README.md
+include test/*.py
+include test/*.json
--- a/50
+++ b/50
@ -1,8 +1,7 @@
-all: youtube-dl README.md youtube-dl.1 youtube-dl.bash-completion LATEST_VERSION
-# TODO: re-add youtube-dl.exe, and make sure it's 1. safe and 2. doesn't need sudo
+all: youtube-dl README.md README.txt youtube-dl.1 youtube-dl.bash-completion

 clean:
-	rm -f youtube-dl youtube-dl.exe youtube-dl.1 LATEST_VERSION youtube_dl/*.pyc
+	rm -rf youtube-dl youtube-dl.exe youtube-dl.1 youtube-dl.bash-completion README.txt MANIFEST build/ dist/ .coverage cover/

 PREFIX=/usr/local
 BINDIR=$(PREFIX)/bin
@ -17,43 +16,32 @@ install: youtube-dl youtube-dl.1 youtube-dl.bash-completion
 	install -d $(DESTDIR)$(SYSCONFDIR)/bash_completion.d
 	install -m 644 youtube-dl.bash-completion $(DESTDIR)$(SYSCONFDIR)/bash_completion.d/youtube-dl

-.PHONY: all clean install youtube-dl.bash-completion
-# TODO un-phony README.md and youtube-dl.bash_completion by reading from .in files and generating from them
+test:
+	#nosetests --with-coverage --cover-package=youtube_dl --cover-html --verbose --processes 4 test
+	nosetests --verbose test
+
+.PHONY: all clean install test

 youtube-dl: youtube_dl/*.py
-	zip --quiet --junk-paths youtube-dl youtube_dl/*.py
+	zip --quiet youtube-dl youtube_dl/*.py
+	zip --quiet --junk-paths youtube-dl youtube_dl/__main__.py
 	echo '#!/usr/bin/env python' > youtube-dl
 	cat youtube-dl.zip >> youtube-dl
 	rm youtube-dl.zip
 	chmod a+x youtube-dl

-youtube-dl.exe: youtube_dl/*.py
-	bash devscripts/wine-py2exe.sh build_exe.py
-
 README.md: youtube_dl/*.py
-	@options=$$(COLUMNS=80 python -m youtube_dl --help | sed -e '1,/.*General Options.*/ d' -e 's/^\W\{2\}\(\w\)/## \1/') && \
-		header=$$(sed -e '/.*# OPTIONS/,$$ d' README.md) && \
-		footer=$$(sed -e '1,/.*# FAQ/ d' README.md) && \
-		echo "$${header}" > README.md && \
-		echo >> README.md && \
-		echo '# OPTIONS' >> README.md && \
-		echo "$${options}" >> README.md&& \
-		echo >> README.md && \
-		echo '# FAQ' >> README.md && \
-		echo "$${footer}" >> README.md
+	COLUMNS=80 python -m youtube_dl --help | python devscripts/make_readme.py

-youtube-dl.1: 
-	pandoc -s -w man README.md -o youtube-dl.1
+README.txt: README.md
+	pandoc -f markdown -t plain README.md -o README.txt

-youtube-dl.bash-completion: 
-	@options=`egrep -o '(--[a-z-]+) ' README.md | sort -u | xargs echo` && \
-		content=`sed "s/opts=\"[^\"]*\"/opts=\"$${options}\"/g" youtube-dl.bash-completion` && \
-		echo "$${content}" > youtube-dl.bash-completion
+youtube-dl.1: README.md
+	pandoc -s -f markdown -t man README.md -o youtube-dl.1

-LATEST_VERSION: youtube_dl/__init__.py
-	python -m youtube_dl --version > LATEST_VERSION
+youtube-dl.bash-completion: youtube_dl/*.py devscripts/bash-completion.in
+	python devscripts/bash-completion.py

-test:
-	nosetests2 --nocapture test
-
-.PHONY: default compile update update-latest update-readme test clean
+youtube-dl.tar.gz: all
+	tar -cvzf youtube-dl.tar.gz -s "|^./|./youtube-dl/|" \
+		--exclude-from=".tarignore" -- .
--- a/README.md
+++ b/README.md
@ -1,4 +1,4 @@
-% youtube-dl(1)
+% YOUTUBE-DL(1)

 # NAME
 youtube-dl
@ -20,6 +20,11 @@ which means you can modify it, redistribute it or use it however you like.
    -i, --ignore-errors      continue on download errors
    -r, --rate-limit LIMIT   download rate limit (e.g. 50k or 44.6m)
    -R, --retries RETRIES    number of retries (default is 10)
+    --buffer-size SIZE       size of download buffer (e.g. 1024 or 16k) (default
+                             is 1024)
+    --no-resize-buffer       do not automatically adjust the buffer size. By
+                             default, the buffer size is automatically resized
+                             from an initial value of SIZE.
    --dump-user-agent        display the current browser identification
    --user-agent UA          specify a custom user agent
    --list-extractors        List all supported extractors and the URLs they
@ -37,16 +42,22 @@ which means you can modify it, redistribute it or use it however you like.
  Filesystem Options:
    -t, --title              use title in file name
    --id                     use video ID in file name
-    -l, --literal            use literal title in file name
+    -l, --literal            [deprecated] alias of --title
    -A, --auto-number        number downloaded files starting from 00000
-    -o, --output TEMPLATE    output filename template. Use %(stitle)s to get the
+    -o, --output TEMPLATE    output filename template. Use %(title)s to get the
                             title, %(uploader)s for the uploader name,
-                             %(autonumber)s to get an automatically incremented
-                             number, %(ext)s for the filename extension,
-                             %(upload_date)s for the upload date (YYYYMMDD),
-                             %(extractor)s for the provider (youtube, metacafe,
-                             etc), %(id)s for the video id and %% for a literal
-                             percent. Use - to output to stdout.
+                             %(uploader_id)s for the uploader nickname if
+                             different, %(autonumber)s to get an automatically
+                             incremented number, %(ext)s for the filename
+                             extension, %(upload_date)s for the upload date
+                             (YYYYMMDD), %(extractor)s for the provider
+                             (youtube, metacafe, etc), %(id)s for the video id
+                             and %% for a literal percent. Use - to output to
+                             stdout. Can also be used to download to a different
+                             directory, for example with -o '/my/downloads/%(upl
+                             oader)s/%(title)s-%(id)s.%(ext)s' .
+    --restrict-filenames     Restrict filenames to only ASCII characters, and
+                             avoid "&" and spaces in filenames
    -a, --batch-file FILE    file containing URLs to download ('-' for stdin)
    -w, --no-overwrites      do not overwrite files
    -c, --continue           resume partially downloaded files
@ -101,6 +112,34 @@ which means you can modify it, redistribute it or use it however you like.
                             specific bitrate like 128K (default 5)
    -k, --keep-video         keeps the video file on disk after the post-
                             processing; the video is erased by default
+    --no-post-overwrites     do not overwrite post-processed files; the post-
+                             processed files are overwritten by default
+
+# CONFIGURATION
+
+You can configure youtube-dl by placing default arguments (such as `--extract-audio --no-mtime` to always extract the audio and not copy the mtime) into `/etc/youtube-dl.conf` and/or `~/.local/config/youtube-dl.conf`.
+
+# OUTPUT TEMPLATE
+
+The `-o` option allows users to indicate a template for the output file names. The basic usage is not to set any template arguments when downloading a single file, like in `youtube-dl -o funny_video.flv "http://some/video"`. However, it may contain special sequences that will be replaced when downloading each video. The special sequences have the format `%(NAME)s`. To clarify, that is a percent symbol followed by a name in parenthesis, followed by a lowercase S. Allowed names are:
+
+ - `id`: The sequence will be replaced by the video identifier.
+ - `url`: The sequence will be replaced by the video URL.
+ - `uploader`: The sequence will be replaced by the nickname of the person who uploaded the video.
+ - `upload_date`: The sequence will be replaced by the upload date in YYYYMMDD format.
+ - `title`: The sequence will be replaced by the video title.
+ - `ext`: The sequence will be replaced by the appropriate extension (like flv or mp4).
+ - `epoch`: The sequence will be replaced by the Unix epoch when creating the file.
+ - `autonumber`: The sequence will be replaced by a five-digit number that will be increased with each download, starting at zero.
+
+The current default template is `%(id)s.%(ext)s`, but that will be switchted to `%(title)s-%(id)s.%(ext)s` (which can be requested with `-t` at the moment).
+
+In some cases, you don't want special characters such as 中, spaces, or &, such as when transferring the downloaded filename to a Windows system or the filename through an 8bit-unsafe channel. In these cases, add the `--restrict-filenames` flag to get a shorter title:
+
+    $ youtube-dl --get-filename -o "%(title)s.%(ext)s" BaW_jenozKc
+    youtube-dl test video ''_ä↭𝕐.mp4    # All kinds of weird characters
+    $ youtube-dl --get-filename -o "%(title)s.%(ext)s" BaW_jenozKc --restrict-filenames
+    youtube-dl_test_video_.mp4          # A simple file name

 # FAQ

@ -137,17 +176,9 @@ The error

 means you're using an outdated version of Python. Please update to Python 2.6 or 2.7.

-To run youtube-dl under Python 2.5, you'll have to manually check it out like this:
-
-	git clone git://github.com/rg3/youtube-dl.git
-	cd youtube-dl
-	python -m youtube_dl --help
-
-Please note that Python 2.5 is not supported anymore.
-
 ### What is this binary file? Where has the code gone?

-Since June 2012 (#342) youtube-dl is packed as an executable zipfile, simply unzip it (might need renaming to `youtube-dl.zip` first on some systems) or clone the git repo to see the code. If you modify the code, you can run it by executing the `__main__.py` file. To recompile the executable, run `make compile`.
+Since June 2012 (#342) youtube-dl is packed as an executable zipfile, simply unzip it (might need renaming to `youtube-dl.zip` first on some systems) or clone the git repository, as laid out above. If you modify the code, you can run it by executing the `__main__.py` file. To recompile the executable, run `make youtube-dl`.

 ### The exe throws a *Runtime error from Visual C++*

@ -166,6 +197,9 @@ Bugs and suggestions should be reported at: <https://github.com/rg3/youtube-dl/i
 Please include:

 * Your exact command line, like `youtube-dl -t "http://www.youtube.com/watch?v=uHlDtZ6Oc3s&feature=channel_video_title"`. A common mistake is not to escape the `&`. Putting URLs in quotes should solve this problem.
+* If possible re-run the command with `--verbose`, and include the full output, it is really helpful to us.
 * The output of `youtube-dl --version`
 * The output of `python --version`
 * The name and version of your Operating System ("Ubuntu 11.04 x64" or "Windows 7 x64" is usually enough).
+
+For discussions, join us in the irc channel #youtube-dl on freenode.
--- a/bin/youtube-dl
+++ b/bin/youtube-dl
@ -0,0 +1,6 @@
+#!/usr/bin/env python
+
+import youtube_dl
+
+if __name__ == '__main__':
+    youtube_dl.main()
--- a/build_exe.py
+++ b/build_exe.py
@ -1,48 +0,0 @@
-from distutils.core import setup
-import py2exe
-import sys, os
-
-"""This will create an exe that needs Microsoft Visual C++ 2008 Redistributable Package"""
-
-# If run without args, build executables
-if len(sys.argv) == 1:
-    sys.argv.append("py2exe")
-
-# os.chdir(os.path.dirname(os.path.abspath(sys.argv[0]))) # conflict with wine-py2exe.sh
-sys.path.append('./youtube_dl')
-
-options = {
-    "bundle_files": 1,
-    "compressed": 1,
-    "optimize": 2,
-    "dist_dir": '.',
-    "dll_excludes": ['w9xpopen.exe']
-}
-
-console = [{
-    "script":"./youtube_dl/__main__.py",
-    "dest_base": "youtube-dl",
-}]
-
-init_file = open('./youtube_dl/__init__.py')
-for line in init_file.readlines():
-    if line.startswith('__version__'):
-        version = line[11:].strip(" ='\n")
-        break
-else:
-    version = ''
-
-setup(name='youtube-dl',
-      version=version,
-      description='Small command-line program to download videos from YouTube.com and other video sites',
-      url='https://github.com/rg3/youtube-dl',
-      packages=['youtube_dl'],
-      
-      console = console,
-      options = {"py2exe": options},
-      zipfile = None,
-)
-
-import shutil
-shutil.rmtree("build")
-
--- a/devscripts/bash-completion.in
+++ b/devscripts/bash-completion.in
@ -0,0 +1,14 @@
+__youtube-dl()
+{
+    local cur prev opts
+    COMPREPLY=()
+    cur="${COMP_WORDS[COMP_CWORD]}"
+    opts="{{flags}}"
+
+    if [[ ${cur} == * ]] ; then
+        COMPREPLY=( $(compgen -W "${opts}" -- ${cur}) )
+        return 0
+    fi
+}
+
+complete -F __youtube-dl youtube-dl
--- a/devscripts/bash-completion.py
+++ b/devscripts/bash-completion.py
@ -0,0 +1,26 @@
+#!/usr/bin/env python
+import os
+from os.path import dirname as dirn
+import sys
+
+sys.path.append(dirn(dirn((os.path.abspath(__file__)))))
+import youtube_dl
+
+BASH_COMPLETION_FILE = "youtube-dl.bash-completion"
+BASH_COMPLETION_TEMPLATE = "devscripts/bash-completion.in"
+
+def build_completion(opt_parser):
+    opts_flag = []
+    for group in opt_parser.option_groups:
+        for option in group.option_list:
+            #for every long flag
+            opts_flag.append(option.get_opt_string())
+    with open(BASH_COMPLETION_TEMPLATE) as f:
+        template = f.read()
+    with open(BASH_COMPLETION_FILE, "w") as f:
+        #just using the special char
+        filled_template = template.replace("{{flags}}", " ".join(opts_flag))
+        f.write(filled_template)
+
+parser = youtube_dl.parseOpts()[0]
+build_completion(parser)
--- a/devscripts/gh-pages/add-version.py
+++ b/devscripts/gh-pages/add-version.py
@ -0,0 +1,33 @@
+#!/usr/bin/env python3
+
+import json
+import sys
+import hashlib
+import urllib.request
+
+if len(sys.argv) <= 1:
+	print('Specify the version number as parameter')
+	sys.exit()
+version = sys.argv[1]
+
+with open('update/LATEST_VERSION', 'w') as f:
+	f.write(version)
+
+versions_info = json.load(open('update/versions.json'))
+if 'signature' in versions_info:
+	del versions_info['signature']
+
+new_version = {}
+
+filenames = {'bin': 'youtube-dl', 'exe': 'youtube-dl.exe', 'tar': 'youtube-dl-%s.tar.gz' % version}
+for key, filename in filenames.items():
+	print('Downloading and checksumming %s...' %filename)
+	url = 'http://youtube-dl.org/downloads/%s/%s' % (version, filename)
+	data = urllib.request.urlopen(url).read()
+	sha256sum = hashlib.sha256(data).hexdigest()
+	new_version[key] = (url, sha256sum)
+
+versions_info['versions'][version] = new_version
+versions_info['latest'] = version
+
+json.dump(versions_info, open('update/versions.json', 'w'), indent=4, sort_keys=True)
--- a/devscripts/gh-pages/generate-download.py
+++ b/devscripts/gh-pages/generate-download.py
@ -0,0 +1,32 @@
+#!/usr/bin/env python3
+import hashlib
+import shutil
+import subprocess
+import tempfile
+import urllib.request
+import json
+
+versions_info = json.load(open('update/versions.json'))
+version = versions_info['latest']
+URL = versions_info['versions'][version]['bin'][0]
+
+data = urllib.request.urlopen(URL).read()
+
+# Read template page
+with open('download.html.in', 'r', encoding='utf-8') as tmplf:
+    template = tmplf.read()
+
+md5sum = hashlib.md5(data).hexdigest()
+sha1sum = hashlib.sha1(data).hexdigest()
+sha256sum = hashlib.sha256(data).hexdigest()
+template = template.replace('@PROGRAM_VERSION@', version)
+template = template.replace('@PROGRAM_URL@', URL)
+template = template.replace('@PROGRAM_MD5SUM@', md5sum)
+template = template.replace('@PROGRAM_SHA1SUM@', sha1sum)
+template = template.replace('@PROGRAM_SHA256SUM@', sha256sum)
+template = template.replace('@EXE_URL@', versions_info['versions'][version]['exe'][0])
+template = template.replace('@EXE_SHA256SUM@', versions_info['versions'][version]['exe'][1])
+template = template.replace('@TAR_URL@', versions_info['versions'][version]['tar'][0])
+template = template.replace('@TAR_SHA256SUM@', versions_info['versions'][version]['tar'][1])
+with open('download.html', 'w', encoding='utf-8') as dlf:
+    dlf.write(template)
--- a/devscripts/gh-pages/sign-versions.py
+++ b/devscripts/gh-pages/sign-versions.py
@ -0,0 +1,28 @@
+#!/usr/bin/env python3
+
+import rsa
+import json
+from binascii import hexlify
+
+versions_info = json.load(open('update/versions.json'))
+if 'signature' in versions_info:
+	del versions_info['signature']
+
+print('Enter the PKCS1 private key, followed by a blank line:')
+privkey = ''
+while True:
+	try:
+		line = input()
+	except EOFError:
+		break
+	if line == '':
+		break
+	privkey += line + '\n'
+privkey = bytes(privkey, 'ascii')
+privkey = rsa.PrivateKey.load_pkcs1(privkey)
+
+signature = hexlify(rsa.pkcs1.sign(json.dumps(versions_info, sort_keys=True).encode('utf-8'), privkey, 'SHA-256')).decode()
+print('signature: ' + signature)
+
+versions_info['signature'] = signature
+json.dump(versions_info, open('update/versions.json', 'w'), indent=4, sort_keys=True)
--- a/devscripts/gh-pages/update-copyright.py
+++ b/devscripts/gh-pages/update-copyright.py
@ -0,0 +1,21 @@
+#!/usr/bin/env python
+# coding: utf-8
+
+from __future__ import with_statement
+
+import datetime
+import glob
+import io # For Python 2 compatibilty
+import os
+import re
+
+year = str(datetime.datetime.now().year)
+for fn in glob.glob('*.html*'):
+    with io.open(fn, encoding='utf-8') as f:
+        content = f.read()
+    newc = re.sub(u'(?P<copyright>Copyright © 2006-)(?P<year>[0-9]{4})', u'Copyright © 2006-' + year, content)
+    if content != newc:
+        tmpFn = fn + '.part'
+        with io.open(tmpFn, 'wt', encoding='utf-8') as outf:
+            outf.write(newc)
+        os.rename(tmpFn, fn)
--- a/devscripts/make_readme.py
+++ b/devscripts/make_readme.py
@ -0,0 +1,20 @@
+import sys
+import re
+
+README_FILE = 'README.md'
+helptext = sys.stdin.read()
+
+with open(README_FILE) as f:
+    oldreadme = f.read()
+
+header = oldreadme[:oldreadme.index('# OPTIONS')]
+footer = oldreadme[oldreadme.index('# CONFIGURATION'):]
+
+options = helptext[helptext.index('  General Options:')+19:]
+options = re.sub(r'^  (\w.+)$', r'## \1', options, flags=re.M)
+options = '# OPTIONS\n' + options + '\n'
+
+with open(README_FILE, 'w') as f:
+    f.write(header)
+    f.write(options)
+    f.write(footer)
--- a/devscripts/release.sh
+++ b/devscripts/release.sh
@ -1,11 +1,85 @@
 #!/bin/sh

+# IMPORTANT: the following assumptions are made
+# * the GH repo is on the origin remote
+# * the gh-pages branch is named so locally
+# * the git config user.signingkey is properly set
+
+# You will need
+# pip install coverage nose rsa
+
+# TODO
+# release notes
+# make hash on local files
+
+set -e
+
 if [ -z "$1" ]; then echo "ERROR: specify version number like this: $0 1994.09.06"; exit 1; fi
 version="$1"
 if [ ! -z "`git tag | grep "$version"`" ]; then echo 'ERROR: version already present'; exit 1; fi
-if [ ! -z "`git status --porcelain`" ]; then echo 'ERROR: the working directory is not clean; commit or stash changes'; exit 1; fi
-sed -i "s/__version__ = '.*'/__version__ = '$version'/" youtube_dl/__init__.py
-make all
-git add -A
+if [ ! -z "`git status --porcelain | grep -v CHANGELOG`" ]; then echo 'ERROR: the working directory is not clean; commit or stash changes'; exit 1; fi
+if [ ! -f "updates_key.pem" ]; then echo 'ERROR: updates_key.pem missing'; exit 1; fi
+
+echo "\n### First of all, testing..."
+make clean
+nosetests --with-coverage --cover-package=youtube_dl --cover-html test || exit 1
+
+echo "\n### Changing version in version.py..."
+sed -i~ "s/__version__ = '.*'/__version__ = '$version'/" youtube_dl/version.py
+
+echo "\n### Committing CHANGELOG README.md and youtube_dl/version.py..."
+make README.md
+git add CHANGELOG README.md youtube_dl/version.py
 git commit -m "release $version"
-git tag -m "Release $version" "$version"
+
+echo "\n### Now tagging, signing and pushing..."
+git tag -s -m "Release $version" "$version"
+git show "$version"
+read -p "Is it good, can I push? (y/n) " -n 1
+if [[ ! $REPLY =~ ^[Yy]$ ]]; then exit 1; fi
+echo
+MASTER=$(git rev-parse --abbrev-ref HEAD)
+git push origin $MASTER:master
+git push origin "$version"
+
+echo "\n### OK, now it is time to build the binaries..."
+REV=$(git rev-parse HEAD)
+make youtube-dl youtube-dl.tar.gz
+wget "http://jeromelaheurte.net:8142/download/rg3/youtube-dl/youtube-dl.exe?rev=$REV" -O youtube-dl.exe || \
+	wget "http://jeromelaheurte.net:8142/build/rg3/youtube-dl/youtube-dl.exe?rev=$REV" -O youtube-dl.exe
+mkdir -p "update_staging/$version"
+mv youtube-dl youtube-dl.exe "update_staging/$version"
+mv youtube-dl.tar.gz "update_staging/$version/youtube-dl-$version.tar.gz"
+RELEASE_FILES=youtube-dl youtube-dl.exe youtube-dl-$version.tar.gz
+(cd update_staging/$version/ && md5sum $RELEASE_FILES > MD5SUMS)
+(cd update_staging/$version/ && sha1sum $RELEASE_FILES > SHA1SUMS)
+(cd update_staging/$version/ && sha256sum $RELEASE_FILES > SHA2-256SUMS)
+(cd update_staging/$version/ && sha512sum $RELEASE_FILES > SHA2-512SUMS)
+git checkout HEAD -- youtube-dl youtube-dl.exe
+
+echo "\n### Signing and uploading the new binaries to youtube-dl.org..."
+for f in $RELEASE_FILES; do gpg --detach-sig "update_staging/$version/$f"; done
+scp -r "update_staging/$version" ytdl@youtube-dl.org:html/downloads/
+rm -r update_staging
+
+echo "\n### Now switching to gh-pages..."
+git checkout gh-pages
+git checkout "$MASTER" -- devscripts/gh-pages/
+git reset devscripts/gh-pages/
+devscripts/gh-pages/add-version.py $version
+devscripts/gh-pages/sign-versions.py < updates_key.pem
+devscripts/gh-pages/generate-download.py
+devscripts/gh-pages/update-copyright.py
+rm -r test_coverage
+mv cover test_coverage
+git add *.html *.html.in update test_coverage
+git commit -m "release $version"
+git show HEAD
+read -p "Is it good, can I push? (y/n) " -n 1
+if [[ ! $REPLY =~ ^[Yy]$ ]]; then exit 1; fi
+echo
+git push origin gh-pages
+
+echo "\n### DONE!"
+rm -r devscripts
+git checkout $MASTER
--- a/devscripts/transition_helper.py
+++ b/devscripts/transition_helper.py
@ -0,0 +1,40 @@
+#!/usr/bin/env python
+
+import sys, os
+
+try:
+    import urllib.request as compat_urllib_request
+except ImportError: # Python 2
+    import urllib2 as compat_urllib_request
+
+sys.stderr.write(u'Hi! We changed distribution method and now youtube-dl needs to update itself one more time.\n')
+sys.stderr.write(u'This will only happen once. Simply press enter to go on. Sorry for the trouble!\n')
+sys.stderr.write(u'The new location of the binaries is https://github.com/rg3/youtube-dl/downloads, not the git repository.\n\n')
+
+try:
+	raw_input()
+except NameError: # Python 3
+	input()
+
+filename = sys.argv[0]
+
+API_URL = "https://api.github.com/repos/rg3/youtube-dl/downloads"
+BIN_URL = "https://github.com/downloads/rg3/youtube-dl/youtube-dl"
+
+if not os.access(filename, os.W_OK):
+    sys.exit('ERROR: no write permissions on %s' % filename)
+
+try:
+    urlh = compat_urllib_request.urlopen(BIN_URL)
+    newcontent = urlh.read()
+    urlh.close()
+except (IOError, OSError) as err:
+    sys.exit('ERROR: unable to download latest version')
+
+try:
+    with open(filename, 'wb') as outf:
+        outf.write(newcontent)
+except (IOError, OSError) as err:
+    sys.exit('ERROR: unable to overwrite current version')
+
+sys.stderr.write(u'Done! Now you can run youtube-dl.\n')
--- a/devscripts/transition_helper_exe/setup.py
+++ b/devscripts/transition_helper_exe/setup.py
@ -0,0 +1,12 @@
+from distutils.core import setup
+import py2exe
+
+py2exe_options = {
+    "bundle_files": 1,
+    "compressed": 1,
+    "optimize": 2,
+    "dist_dir": '.',
+    "dll_excludes": ['w9xpopen.exe']
+}
+
+setup(console=['youtube-dl.py'], options={ "py2exe": py2exe_options }, zipfile=None)
--- a/devscripts/transition_helper_exe/youtube-dl.py
+++ b/devscripts/transition_helper_exe/youtube-dl.py
@ -0,0 +1,102 @@
+#!/usr/bin/env python
+
+import sys, os
+import urllib2
+import json, hashlib
+
+def rsa_verify(message, signature, key):
+    from struct import pack
+    from hashlib import sha256
+    from sys import version_info
+    def b(x):
+        if version_info[0] == 2: return x
+        else: return x.encode('latin1')
+    assert(type(message) == type(b('')))
+    block_size = 0
+    n = key[0]
+    while n:
+        block_size += 1
+        n >>= 8
+    signature = pow(int(signature, 16), key[1], key[0])
+    raw_bytes = []
+    while signature:
+        raw_bytes.insert(0, pack("B", signature & 0xFF))
+        signature >>= 8
+    signature = (block_size - len(raw_bytes)) * b('\x00') + b('').join(raw_bytes)
+    if signature[0:2] != b('\x00\x01'): return False
+    signature = signature[2:]
+    if not b('\x00') in signature: return False
+    signature = signature[signature.index(b('\x00'))+1:]
+    if not signature.startswith(b('\x30\x31\x30\x0D\x06\x09\x60\x86\x48\x01\x65\x03\x04\x02\x01\x05\x00\x04\x20')): return False
+    signature = signature[19:]
+    if signature != sha256(message).digest(): return False
+    return True
+
+sys.stderr.write(u'Hi! We changed distribution method and now youtube-dl needs to update itself one more time.\n')
+sys.stderr.write(u'This will only happen once. Simply press enter to go on. Sorry for the trouble!\n')
+sys.stderr.write(u'From now on, get the binaries from http://rg3.github.com/youtube-dl/download.html, not from the git repository.\n\n')
+
+raw_input()
+
+filename = sys.argv[0]
+
+UPDATE_URL = "http://rg3.github.com/youtube-dl/update/"
+VERSION_URL = UPDATE_URL + 'LATEST_VERSION'
+JSON_URL = UPDATE_URL + 'versions.json'
+UPDATES_RSA_KEY = (0x9d60ee4d8f805312fdb15a62f87b95bd66177b91df176765d13514a0f1754bcd2057295c5b6f1d35daa6742c3ffc9a82d3e118861c207995a8031e151d863c9927e304576bc80692bc8e094896fcf11b66f3e29e04e3a71e9a11558558acea1840aec37fc396fb6b65dc81a1c4144e03bd1c011de62e3f1357b327d08426fe93, 65537)
+
+if not os.access(filename, os.W_OK):
+    sys.exit('ERROR: no write permissions on %s' % filename)
+
+exe = os.path.abspath(filename)
+directory = os.path.dirname(exe)
+if not os.access(directory, os.W_OK):
+    sys.exit('ERROR: no write permissions on %s' % directory)
+
+try:
+    versions_info = urllib2.urlopen(JSON_URL).read().decode('utf-8')
+    versions_info = json.loads(versions_info)
+except:
+    sys.exit(u'ERROR: can\'t obtain versions info. Please try again later.')
+if not 'signature' in versions_info:
+    sys.exit(u'ERROR: the versions file is not signed or corrupted. Aborting.')
+signature = versions_info['signature']
+del versions_info['signature']
+if not rsa_verify(json.dumps(versions_info, sort_keys=True), signature, UPDATES_RSA_KEY):
+    sys.exit(u'ERROR: the versions file signature is invalid. Aborting.')
+
+version = versions_info['versions'][versions_info['latest']]
+
+try:
+    urlh = urllib2.urlopen(version['exe'][0])
+    newcontent = urlh.read()
+    urlh.close()
+except (IOError, OSError) as err:
+    sys.exit('ERROR: unable to download latest version')
+
+newcontent_hash = hashlib.sha256(newcontent).hexdigest()
+if newcontent_hash != version['exe'][1]:
+    sys.exit(u'ERROR: the downloaded file hash does not match. Aborting.')
+
+try:
+    with open(exe + '.new', 'wb') as outf:
+        outf.write(newcontent)
+except (IOError, OSError) as err:
+    sys.exit(u'ERROR: unable to write the new version')
+
+try:
+    bat = os.path.join(directory, 'youtube-dl-updater.bat')
+    b = open(bat, 'w')
+    b.write("""
+echo Updating youtube-dl...
+ping 127.0.0.1 -n 5 -w 1000 > NUL
+move /Y "%s.new" "%s"
+del "%s"
+    \n""" %(exe, exe, bat))
+    b.close()
+
+    os.startfile(bat)
+except (IOError, OSError) as err:
+    sys.exit('ERROR: unable to overwrite current version')
+
+sys.stderr.write(u'Done! Now you can run youtube-dl.\n')
--- a/setup.py
+++ b/setup.py
@ -0,0 +1,74 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+from __future__ import print_function
+from distutils.core import setup
+import pkg_resources
+import sys
+
+try:
+    import py2exe
+    """This will create an exe that needs Microsoft Visual C++ 2008 Redistributable Package"""
+except ImportError:
+    if len(sys.argv) >= 2 and sys.argv[1] == 'py2exe':
+        print("Cannot import py2exe", file=sys.stderr)
+        exit(1)
+
+py2exe_options = {
+    "bundle_files": 1,
+    "compressed": 1,
+    "optimize": 2,
+    "dist_dir": '.',
+    "dll_excludes": ['w9xpopen.exe']
+}
+py2exe_console = [{
+    "script": "./youtube_dl/__main__.py",
+    "dest_base": "youtube-dl",
+}]
+py2exe_params = {
+    'console': py2exe_console,
+    'options': { "py2exe": py2exe_options },
+    'zipfile': None
+}
+
+if len(sys.argv) >= 2 and sys.argv[1] == 'py2exe':
+    params = py2exe_params
+else:
+    params = {
+        'scripts': ['bin/youtube-dl'],
+        'data_files': [('etc/bash_completion.d', ['youtube-dl.bash-completion']), # Installing system-wide would require sudo...
+                       ('share/doc/youtube_dl', ['README.txt']),
+                       ('share/man/man1/', ['youtube-dl.1'])]
+    }
+
+# Get the version from youtube_dl/version.py without importing the package
+exec(compile(open('youtube_dl/version.py').read(), 'youtube_dl/version.py', 'exec'))
+
+setup(
+    name = 'youtube_dl',
+    version = __version__,
+    description = 'YouTube video downloader',
+    long_description = 'Small command-line program to download videos from YouTube.com and other video sites.',
+    url = 'https://github.com/rg3/youtube-dl',
+    author = 'Ricardo Garcia',
+    maintainer = 'Philipp Hagemeister',
+    maintainer_email = 'phihag@phihag.de',
+    packages = ['youtube_dl'],
+
+    # Provokes warning on most systems (why?!)
+    #test_suite = 'nose.collector',
+    #test_requires = ['nosetest'],
+
+    classifiers = [
+        "Topic :: Multimedia :: Video",
+        "Development Status :: 5 - Production/Stable",
+        "Environment :: Console",
+        "License :: Public Domain",
+        "Programming Language :: Python :: 2.6",
+        "Programming Language :: Python :: 2.7",
+        "Programming Language :: Python :: 3",
+        "Programming Language :: Python :: 3.3"
+    ],
+
+    **params
+)
--- a/test/parameters.json
+++ b/test/parameters.json
@ -1 +1,40 @@
-{"username": null, "listformats": null, "skip_download": false, "usenetrc": false, "max_downloads": null, "noprogress": false, "forcethumbnail": false, "forceformat": false, "format_limit": null, "ratelimit": null, "nooverwrites": false, "forceurl": false, "writeinfojson": false, "simulate": false, "playliststart": 1, "continuedl": true, "password": null, "prefer_free_formats": false, "nopart": false, "retries": 10, "updatetime": true, "consoletitle": false, "verbose": true, "forcefilename": false, "ignoreerrors": false, "logtostderr": false, "format": null, "subtitleslang": null, "quiet": false, "outtmpl": "%(id)s.%(ext)s", "rejecttitle": null, "playlistend": -1, "writedescription": false, "forcetitle": false, "forcedescription": false, "writesubtitles": false, "matchtitle": null}
+{
+    "consoletitle": false, 
+    "continuedl": true, 
+    "forcedescription": false, 
+    "forcefilename": false, 
+    "forceformat": false, 
+    "forcethumbnail": false, 
+    "forcetitle": false, 
+    "forceurl": false, 
+    "format": null, 
+    "format_limit": null, 
+    "ignoreerrors": false, 
+    "listformats": null, 
+    "logtostderr": false, 
+    "matchtitle": null, 
+    "max_downloads": null, 
+    "nooverwrites": false, 
+    "nopart": false, 
+    "noprogress": false, 
+    "outtmpl": "%(id)s.%(ext)s", 
+    "password": null, 
+    "playlistend": -1, 
+    "playliststart": 1, 
+    "prefer_free_formats": false, 
+    "quiet": false, 
+    "ratelimit": null, 
+    "rejecttitle": null, 
+    "retries": 10, 
+    "simulate": false, 
+    "skip_download": false, 
+    "subtitleslang": null, 
+    "test": true, 
+    "updatetime": true, 
+    "usenetrc": false, 
+    "username": null, 
+    "verbose": true, 
+    "writedescription": false, 
+    "writeinfojson": true, 
+    "writesubtitles": false
+}
--- a/test/test_all_urls.py
+++ b/test/test_all_urls.py
@ -0,0 +1,27 @@
+#!/usr/bin/env python
+
+import sys
+import unittest
+
+# Allow direct execution
+import os
+sys.path.append(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
+
+from youtube_dl.InfoExtractors import YoutubeIE, YoutubePlaylistIE
+
+class TestAllURLsMatching(unittest.TestCase):
+    def test_youtube_playlist_matching(self):
+        self.assertTrue(YoutubePlaylistIE().suitable(u'ECUl4u3cNGP61MdtwGTqZA0MreSaDybji8'))
+        self.assertTrue(YoutubePlaylistIE().suitable(u'PL63F0C78739B09958'))
+        self.assertFalse(YoutubePlaylistIE().suitable(u'PLtS2H6bU1M'))
+
+    def test_youtube_matching(self):
+        self.assertTrue(YoutubeIE().suitable(u'PLtS2H6bU1M'))
+
+    def test_youtube_extract(self):
+        self.assertEqual(YoutubeIE()._extract_id('http://www.youtube.com/watch?&v=BaW_jenozKc'), 'BaW_jenozKc')
+        self.assertEqual(YoutubeIE()._extract_id('https://www.youtube.com/watch?&v=BaW_jenozKc'), 'BaW_jenozKc')
+        self.assertEqual(YoutubeIE()._extract_id('https://www.youtube.com/watch?feature=player_embedded&v=BaW_jenozKc'), 'BaW_jenozKc')
+
+if __name__ == '__main__':
+    unittest.main()
--- a/test/test_download.py
+++ b/test/test_download.py
@ -1,93 +1,125 @@
-#!/usr/bin/env python2
-import unittest
+#!/usr/bin/env python
+
+import errno
 import hashlib
+import io
 import os
 import json
+import unittest
+import sys
+import hashlib
+import socket

-from youtube_dl.FileDownloader import FileDownloader
-from youtube_dl.InfoExtractors  import YoutubeIE, DailymotionIE
-from youtube_dl.InfoExtractors import  MetacafeIE, BlipTVIE
+# Allow direct execution
+sys.path.append(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
+
+import youtube_dl.FileDownloader
+import youtube_dl.InfoExtractors
+from youtube_dl.utils import *
+
+DEF_FILE = os.path.join(os.path.dirname(os.path.abspath(__file__)), 'tests.json')
+PARAMETERS_FILE = os.path.join(os.path.dirname(os.path.abspath(__file__)), "parameters.json")
+
+# General configuration (from __init__, not very elegant...)
+jar = compat_cookiejar.CookieJar()
+cookie_processor = compat_urllib_request.HTTPCookieProcessor(jar)
+proxy_handler = compat_urllib_request.ProxyHandler()
+opener = compat_urllib_request.build_opener(proxy_handler, cookie_processor, YoutubeDLHandler())
+compat_urllib_request.install_opener(opener)
+
+def _try_rm(filename):
+    """ Remove a file if it exists """
+    try:
+        os.remove(filename)
+    except OSError as ose:
+        if ose.errno != errno.ENOENT:
+            raise
+
+class FileDownloader(youtube_dl.FileDownloader):
+    def __init__(self, *args, **kwargs):
+        self.to_stderr = self.to_screen
+        self.processed_info_dicts = []
+        return youtube_dl.FileDownloader.__init__(self, *args, **kwargs)
+    def process_info(self, info_dict):
+        self.processed_info_dicts.append(info_dict)
+        return youtube_dl.FileDownloader.process_info(self, info_dict)
+
+def _file_md5(fn):
+    with open(fn, 'rb') as f:
+        return hashlib.md5(f.read()).hexdigest()
+
+with io.open(DEF_FILE, encoding='utf-8') as deff:
+    defs = json.load(deff)
+with io.open(PARAMETERS_FILE, encoding='utf-8') as pf:
+    parameters = json.load(pf)


-class DownloadTest(unittest.TestCase):
-	PARAMETERS_FILE = "test/parameters.json"
-	#calculated with md5sum:
-	#md5sum (GNU coreutils) 8.19
+class TestDownload(unittest.TestCase):
+    def setUp(self):
+        self.parameters = parameters
+        self.defs = defs

-	YOUTUBE_SIZE = 1993883
-	YOUTUBE_URL = "http://www.youtube.com/watch?v=BaW_jenozKc"
-	YOUTUBE_FILE = "BaW_jenozKc.mp4"
+### Dynamically generate tests
+def generator(test_case):

-	DAILYMOTION_MD5 = "d363a50e9eb4f22ce90d08d15695bb47"
-	DAILYMOTION_URL = "http://www.dailymotion.com/video/x33vw9_tutoriel-de-youtubeur-dl-des-video_tech"
-	DAILYMOTION_FILE = "x33vw9.mp4"
+    def test_template(self):
+        ie = getattr(youtube_dl.InfoExtractors, test_case['name'] + 'IE')
+        if not ie._WORKING:
+            print('Skipping: IE marked as not _WORKING')
+            return
+        if 'playlist' not in test_case and not test_case['file']:
+            print('Skipping: No output file specified')
+            return
+        if 'skip' in test_case:
+            print('Skipping: {0}'.format(test_case['skip']))
+            return

-	METACAFE_SIZE = 5754305
-	METACAFE_URL = "http://www.metacafe.com/watch/yt-_aUehQsCQtM/the_electric_company_short_i_pbs_kids_go/"
-	METACAFE_FILE = "_aUehQsCQtM.flv"
+        params = self.parameters.copy()
+        params.update(test_case.get('params', {}))

-	BLIP_MD5 = "93c24d2f4e0782af13b8a7606ea97ba7"
-	BLIP_URL = "http://blip.tv/cbr/cbr-exclusive-gotham-city-imposters-bats-vs-jokerz-short-3-5796352"
-	BLIP_FILE = "5779306.m4v"
+        fd = FileDownloader(params)
+        fd.add_info_extractor(ie())
+        for ien in test_case.get('add_ie', []):
+            fd.add_info_extractor(getattr(youtube_dl.InfoExtractors, ien + 'IE')())

-	XVIDEO_MD5 = ""
-	XVIDEO_URL = ""
-	XVIDEO_FILE = ""
+        test_cases = test_case.get('playlist', [test_case])
+        for tc in test_cases:
+            _try_rm(tc['file'])
+            _try_rm(tc['file'] + '.part')
+            _try_rm(tc['file'] + '.info.json')
+        try:
+            fd.download([test_case['url']])
+
+            for tc in test_cases:
+                if not test_case.get('params', {}).get('skip_download', False):
+                    self.assertTrue(os.path.exists(tc['file']))
+                self.assertTrue(os.path.exists(tc['file'] + '.info.json'))
+                if 'md5' in tc:
+                    md5_for_file = _file_md5(tc['file'])
+                    self.assertEqual(md5_for_file, tc['md5'])
+                with io.open(tc['file'] + '.info.json', encoding='utf-8') as infof:
+                    info_dict = json.load(infof)
+                for (info_field, value) in tc.get('info_dict', {}).items():
+                    if value.startswith('md5:'):
+                        md5_info_value = hashlib.md5(info_dict.get(info_field, '')).hexdigest()
+                        self.assertEqual(value[3:], md5_info_value)
+                    else:
+                        self.assertEqual(value, info_dict.get(info_field))
+        finally:
+            for tc in test_cases:
+                _try_rm(tc['file'])
+                _try_rm(tc['file'] + '.part')
+                _try_rm(tc['file'] + '.info.json')
+
+    return test_template
+
+### And add them to TestDownload
+for test_case in defs:
+    test_method = generator(test_case)
+    test_method.__name__ = "test_{0}".format(test_case["name"])
+    setattr(TestDownload, test_method.__name__, test_method)
+    del test_method


-	def test_youtube(self):
-		#let's download a file from youtube
-		with open(DownloadTest.PARAMETERS_FILE) as f:
-			fd = FileDownloader(json.load(f))
-		fd.add_info_extractor(YoutubeIE())
-		fd.download([DownloadTest.YOUTUBE_URL])
-		self.assertTrue(os.path.exists(DownloadTest.YOUTUBE_FILE))
-		self.assertEqual(os.path.getsize(DownloadTest.YOUTUBE_FILE), DownloadTest.YOUTUBE_SIZE)
-
-	def test_dailymotion(self):
-		with open(DownloadTest.PARAMETERS_FILE) as f:
-			fd = FileDownloader(json.load(f))
-		fd.add_info_extractor(DailymotionIE())
-		fd.download([DownloadTest.DAILYMOTION_URL])
-		self.assertTrue(os.path.exists(DownloadTest.DAILYMOTION_FILE))
-		md5_down_file = md5_for_file(DownloadTest.DAILYMOTION_FILE)
-		self.assertEqual(md5_down_file, DownloadTest.DAILYMOTION_MD5)
-
-	def test_metacafe(self):
-		#this emulate a skip,to be 2.6 compatible
-		with open(DownloadTest.PARAMETERS_FILE) as f:
-			fd = FileDownloader(json.load(f))
-		fd.add_info_extractor(MetacafeIE())
-		fd.add_info_extractor(YoutubeIE())
-		fd.download([DownloadTest.METACAFE_URL])
-		self.assertTrue(os.path.exists(DownloadTest.METACAFE_FILE))
-		self.assertEqual(os.path.getsize(DownloadTest.METACAFE_FILE), DownloadTest.METACAFE_SIZE)
-
-	def test_blip(self):
-		with open(DownloadTest.PARAMETERS_FILE) as f:
-			fd = FileDownloader(json.load(f))
-		fd.add_info_extractor(BlipTVIE())
-		fd.download([DownloadTest.BLIP_URL])
-		self.assertTrue(os.path.exists(DownloadTest.BLIP_FILE))
-		md5_down_file = md5_for_file(DownloadTest.BLIP_FILE)
-		self.assertEqual(md5_down_file, DownloadTest.BLIP_MD5)
-
-	def tearDown(self):
-		if os.path.exists(DownloadTest.YOUTUBE_FILE):
-			os.remove(DownloadTest.YOUTUBE_FILE)
-		if os.path.exists(DownloadTest.DAILYMOTION_FILE):
-			os.remove(DownloadTest.DAILYMOTION_FILE)
-		if os.path.exists(DownloadTest.METACAFE_FILE):
-			os.remove(DownloadTest.METACAFE_FILE)
-		if os.path.exists(DownloadTest.BLIP_FILE):
-			os.remove(DownloadTest.BLIP_FILE)
-
-def md5_for_file(filename, block_size=2**20):
-    with open(filename) as f:
-        md5 = hashlib.md5()
-        while True:
-            data = f.read(block_size)
-            if not data:
-                break
-            md5.update(data)
-            return md5.hexdigest()
+if __name__ == '__main__':
+    unittest.main()
--- a/test/test_execution.py
+++ b/test/test_execution.py
@ -0,0 +1,26 @@
+import unittest
+
+import sys
+import os
+import subprocess
+
+rootDir = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+
+try:
+    _DEV_NULL = subprocess.DEVNULL
+except AttributeError:
+    _DEV_NULL = open(os.devnull, 'wb')
+
+class TestExecution(unittest.TestCase):
+    def test_import(self):
+        subprocess.check_call([sys.executable, '-c', 'import youtube_dl'], cwd=rootDir)
+
+    def test_module_exec(self):
+        if sys.version_info >= (2,7): # Python 2.6 doesn't support package execution
+            subprocess.check_call([sys.executable, '-m', 'youtube_dl', '--version'], cwd=rootDir, stdout=_DEV_NULL)
+
+    def test_main_exec(self):
+        subprocess.check_call([sys.executable, 'youtube_dl/__main__.py', '--version'], cwd=rootDir, stdout=_DEV_NULL)
+
+if __name__ == '__main__':
+    unittest.main()
--- a/test/test_utils.py
+++ b/test/test_utils.py
@ -1,47 +1,100 @@
-# -*- coding: utf-8 -*-
+#!/usr/bin/env python

 # Various small unit tests

+import sys
 import unittest

+# Allow direct execution
+import os
+sys.path.append(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
+
 #from youtube_dl.utils import htmlentity_transform
 from youtube_dl.utils import timeconvert
 from youtube_dl.utils import sanitize_filename
 from youtube_dl.utils import unescapeHTML
 from youtube_dl.utils import orderedSet

+if sys.version_info < (3, 0):
+    _compat_str = lambda b: b.decode('unicode-escape')
+else:
+    _compat_str = lambda s: s
+

 class TestUtil(unittest.TestCase):
-	def test_timeconvert(self):
-		self.assertTrue(timeconvert('') is None)
-		self.assertTrue(timeconvert('bougrg') is None)
+    def test_timeconvert(self):
+        self.assertTrue(timeconvert('') is None)
+        self.assertTrue(timeconvert('bougrg') is None)

-	def test_sanitize_filename(self):
-		self.assertEqual(sanitize_filename(u'abc'), u'abc')
-		self.assertEqual(sanitize_filename(u'abc_d-e'), u'abc_d-e')
+    def test_sanitize_filename(self):
+        self.assertEqual(sanitize_filename('abc'), 'abc')
+        self.assertEqual(sanitize_filename('abc_d-e'), 'abc_d-e')

-		self.assertEqual(sanitize_filename(u'123'), u'123')
+        self.assertEqual(sanitize_filename('123'), '123')

-		self.assertEqual(u'abc-de', sanitize_filename(u'abc/de'))
-		self.assertFalse(u'/' in sanitize_filename(u'abc/de///'))
+        self.assertEqual('abc_de', sanitize_filename('abc/de'))
+        self.assertFalse('/' in sanitize_filename('abc/de///'))

-		self.assertEqual(u'abc-de', sanitize_filename(u'abc/<>\\*|de'))
-		self.assertEqual(u'xxx', sanitize_filename(u'xxx/<>\\*|'))
-		self.assertEqual(u'yes no', sanitize_filename(u'yes? no'))
-		self.assertEqual(u'this - that', sanitize_filename(u'this: that'))
+        self.assertEqual('abc_de', sanitize_filename('abc/<>\\*|de'))
+        self.assertEqual('xxx', sanitize_filename('xxx/<>\\*|'))
+        self.assertEqual('yes no', sanitize_filename('yes? no'))
+        self.assertEqual('this - that', sanitize_filename('this: that'))

-		self.assertEqual(sanitize_filename(u'ä'), u'ä')
-		self.assertEqual(sanitize_filename(u'кириллица'), u'кириллица')
+        self.assertEqual(sanitize_filename('AT&T'), 'AT&T')
+        aumlaut = _compat_str('\xe4')
+        self.assertEqual(sanitize_filename(aumlaut), aumlaut)
+        tests = _compat_str('\u043a\u0438\u0440\u0438\u043b\u043b\u0438\u0446\u0430')
+        self.assertEqual(sanitize_filename(tests), tests)

-		for forbidden in u'"\0\\/':
-			self.assertTrue(forbidden not in sanitize_filename(forbidden))
+        forbidden = '"\0\\/'
+        for fc in forbidden:
+            for fbc in forbidden:
+                self.assertTrue(fbc not in sanitize_filename(fc))

-	def test_ordered_set(self):
-		self.assertEqual(orderedSet([1,1,2,3,4,4,5,6,7,3,5]), [1,2,3,4,5,6,7])
-		self.assertEqual(orderedSet([]), [])
-		self.assertEqual(orderedSet([1]), [1])
-		#keep the list ordered
-		self.assertEqual(orderedSet([135,1,1,1]), [135,1])
+    def test_sanitize_filename_restricted(self):
+        self.assertEqual(sanitize_filename('abc', restricted=True), 'abc')
+        self.assertEqual(sanitize_filename('abc_d-e', restricted=True), 'abc_d-e')

-	def test_unescape_html(self):
-		self.assertEqual(unescapeHTML(u"%20;"), u"%20;")
+        self.assertEqual(sanitize_filename('123', restricted=True), '123')
+
+        self.assertEqual('abc_de', sanitize_filename('abc/de', restricted=True))
+        self.assertFalse('/' in sanitize_filename('abc/de///', restricted=True))
+
+        self.assertEqual('abc_de', sanitize_filename('abc/<>\\*|de', restricted=True))
+        self.assertEqual('xxx', sanitize_filename('xxx/<>\\*|', restricted=True))
+        self.assertEqual('yes_no', sanitize_filename('yes? no', restricted=True))
+        self.assertEqual('this_-_that', sanitize_filename('this: that', restricted=True))
+
+        tests = _compat_str('a\xe4b\u4e2d\u56fd\u7684c')
+        self.assertEqual(sanitize_filename(tests, restricted=True), 'a_b_c')
+        self.assertTrue(sanitize_filename(_compat_str('\xf6'), restricted=True) != '')  # No empty filename
+
+        forbidden = '"\0\\/&!: \'\t\n()[]{}$;`^,#'
+        for fc in forbidden:
+            for fbc in forbidden:
+                self.assertTrue(fbc not in sanitize_filename(fc, restricted=True))
+
+        # Handle a common case more neatly
+        self.assertEqual(sanitize_filename(_compat_str('\u5927\u58f0\u5e26 - Song'), restricted=True), 'Song')
+        self.assertEqual(sanitize_filename(_compat_str('\u603b\u7edf: Speech'), restricted=True), 'Speech')
+        # .. but make sure the file name is never empty
+        self.assertTrue(sanitize_filename('-', restricted=True) != '')
+        self.assertTrue(sanitize_filename(':', restricted=True) != '')
+
+    def test_sanitize_ids(self):
+        self.assertEqual(sanitize_filename('_n_cd26wFpw', is_id=True), '_n_cd26wFpw')
+        self.assertEqual(sanitize_filename('_BD_eEpuzXw', is_id=True), '_BD_eEpuzXw')
+        self.assertEqual(sanitize_filename('N0Y__7-UOdI', is_id=True), 'N0Y__7-UOdI')
+
+    def test_ordered_set(self):
+        self.assertEqual(orderedSet([1, 1, 2, 3, 4, 4, 5, 6, 7, 3, 5]), [1, 2, 3, 4, 5, 6, 7])
+        self.assertEqual(orderedSet([]), [])
+        self.assertEqual(orderedSet([1]), [1])
+        #keep the list ordered
+        self.assertEqual(orderedSet([135, 1, 1, 1]), [135, 1])
+
+    def test_unescape_html(self):
+        self.assertEqual(unescapeHTML(_compat_str('%20;')), _compat_str('%20;'))
+
+if __name__ == '__main__':
+    unittest.main()
--- a/test/test_write_info_json.py
+++ b/test/test_write_info_json.py
@ -0,0 +1,77 @@
+#!/usr/bin/env python
+# coding: utf-8
+
+import json
+import os
+import sys
+import unittest
+
+# Allow direct execution
+sys.path.append(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
+
+import youtube_dl.FileDownloader
+import youtube_dl.InfoExtractors
+from youtube_dl.utils import *
+
+PARAMETERS_FILE = os.path.join(os.path.dirname(os.path.abspath(__file__)), "parameters.json")
+
+# General configuration (from __init__, not very elegant...)
+jar = compat_cookiejar.CookieJar()
+cookie_processor = compat_urllib_request.HTTPCookieProcessor(jar)
+proxy_handler = compat_urllib_request.ProxyHandler()
+opener = compat_urllib_request.build_opener(proxy_handler, cookie_processor, YoutubeDLHandler())
+compat_urllib_request.install_opener(opener)
+
+class FileDownloader(youtube_dl.FileDownloader):
+    def __init__(self, *args, **kwargs):
+        youtube_dl.FileDownloader.__init__(self, *args, **kwargs)
+        self.to_stderr = self.to_screen
+
+with io.open(PARAMETERS_FILE, encoding='utf-8') as pf:
+    params = json.load(pf)
+params['writeinfojson'] = True
+params['skip_download'] = True
+params['writedescription'] = True
+
+TEST_ID = 'BaW_jenozKc'
+INFO_JSON_FILE = TEST_ID + '.mp4.info.json'
+DESCRIPTION_FILE = TEST_ID + '.mp4.description'
+EXPECTED_DESCRIPTION = u'''test chars:  "'/\ä↭𝕐
+
+This is a test video for youtube-dl.
+
+For more information, contact phihag@phihag.de .'''
+
+class TestInfoJSON(unittest.TestCase):
+    def setUp(self):
+        # Clear old files
+        self.tearDown()
+
+    def test_info_json(self):
+        ie = youtube_dl.InfoExtractors.YoutubeIE()
+        fd = FileDownloader(params)
+        fd.add_info_extractor(ie)
+        fd.download([TEST_ID])
+        self.assertTrue(os.path.exists(INFO_JSON_FILE))
+        with io.open(INFO_JSON_FILE, 'r', encoding='utf-8') as jsonf:
+            jd = json.load(jsonf)
+        self.assertEqual(jd['upload_date'], u'20121002')
+        self.assertEqual(jd['description'], EXPECTED_DESCRIPTION)
+        self.assertEqual(jd['id'], TEST_ID)
+        self.assertEqual(jd['extractor'], 'youtube')
+        self.assertEqual(jd['title'], u'''youtube-dl test video "'/\ä↭𝕐''')
+        self.assertEqual(jd['uploader'], 'Philipp Hagemeister')
+
+        self.assertTrue(os.path.exists(DESCRIPTION_FILE))
+        with io.open(DESCRIPTION_FILE, 'r', encoding='utf-8') as descf:
+            descr = descf.read()
+        self.assertEqual(descr, EXPECTED_DESCRIPTION)
+
+    def tearDown(self):
+        if os.path.exists(INFO_JSON_FILE):
+            os.remove(INFO_JSON_FILE)
+        if os.path.exists(DESCRIPTION_FILE):
+            os.remove(DESCRIPTION_FILE)
+
+if __name__ == '__main__':
+    unittest.main()
--- a/test/test_youtube_lists.py
+++ b/test/test_youtube_lists.py
@ -0,0 +1,73 @@
+#!/usr/bin/env python
+
+import sys
+import unittest
+import json
+
+# Allow direct execution
+import os
+sys.path.append(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
+
+from youtube_dl.InfoExtractors import YoutubeUserIE,YoutubePlaylistIE
+from youtube_dl.utils import *
+
+PARAMETERS_FILE = os.path.join(os.path.dirname(os.path.abspath(__file__)), "parameters.json")
+with io.open(PARAMETERS_FILE, encoding='utf-8') as pf:
+    parameters = json.load(pf)
+
+# General configuration (from __init__, not very elegant...)
+jar = compat_cookiejar.CookieJar()
+cookie_processor = compat_urllib_request.HTTPCookieProcessor(jar)
+proxy_handler = compat_urllib_request.ProxyHandler()
+opener = compat_urllib_request.build_opener(proxy_handler, cookie_processor, YoutubeDLHandler())
+compat_urllib_request.install_opener(opener)
+
+class FakeDownloader(object):
+    def __init__(self):
+        self.result = []
+        self.params = parameters
+    def to_screen(self, s):
+        print(s)
+    def trouble(self, s):
+        raise Exception(s)
+    def download(self, x):
+        self.result.append(x)
+
+class TestYoutubeLists(unittest.TestCase):
+    def test_youtube_playlist(self):
+        DL = FakeDownloader()
+        IE = YoutubePlaylistIE(DL)
+        IE.extract('https://www.youtube.com/playlist?list=PLwiyx1dc3P2JR9N8gQaQN_BCvlSlap7re')
+        self.assertEqual(DL.result, [
+            ['http://www.youtube.com/watch?v=bV9L5Ht9LgY'],
+            ['http://www.youtube.com/watch?v=FXxLjLQi3Fg'],
+            ['http://www.youtube.com/watch?v=tU3Bgo5qJZE']
+        ])
+
+    def test_youtube_playlist_long(self):
+        DL = FakeDownloader()
+        IE = YoutubePlaylistIE(DL)
+        IE.extract('https://www.youtube.com/playlist?list=UUBABnxM4Ar9ten8Mdjj1j0Q')
+        self.assertTrue(len(DL.result) >= 799)
+
+    def test_youtube_course(self):
+        DL = FakeDownloader()
+        IE = YoutubePlaylistIE(DL)
+        # TODO find a > 100 (paginating?) videos course
+        IE.extract('https://www.youtube.com/course?list=ECUl4u3cNGP61MdtwGTqZA0MreSaDybji8')
+        self.assertEqual(DL.result[0], ['http://www.youtube.com/watch?v=j9WZyLZCBzs'])
+        self.assertEqual(len(DL.result), 25)
+        self.assertEqual(DL.result[-1], ['http://www.youtube.com/watch?v=rYefUsYuEp0'])
+
+    def test_youtube_channel(self):
+        # I give up, please find a channel that does paginate and test this like test_youtube_playlist_long
+        pass # TODO
+
+    def test_youtube_user(self):
+        DL = FakeDownloader()
+        IE = YoutubeUserIE(DL)
+        IE.extract('https://www.youtube.com/user/TheLinuxFoundation')
+        self.assertTrue(len(DL.result) >= 320)
+
+if __name__ == '__main__':
+    unittest.main()
--- a/test/test_youtube_subtitles.py
+++ b/test/test_youtube_subtitles.py
@ -0,0 +1,57 @@
+#!/usr/bin/env python
+
+import sys
+import unittest
+import json
+import io
+import hashlib
+
+# Allow direct execution
+import os
+sys.path.append(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
+
+from youtube_dl.InfoExtractors import YoutubeIE
+from youtube_dl.utils import *
+
+PARAMETERS_FILE = os.path.join(os.path.dirname(os.path.abspath(__file__)), "parameters.json")
+with io.open(PARAMETERS_FILE, encoding='utf-8') as pf:
+    parameters = json.load(pf)
+
+# General configuration (from __init__, not very elegant...)
+jar = compat_cookiejar.CookieJar()
+cookie_processor = compat_urllib_request.HTTPCookieProcessor(jar)
+proxy_handler = compat_urllib_request.ProxyHandler()
+opener = compat_urllib_request.build_opener(proxy_handler, cookie_processor, YoutubeDLHandler())
+compat_urllib_request.install_opener(opener)
+
+class FakeDownloader(object):
+    def __init__(self):
+        self.result = []
+        self.params = parameters
+    def to_screen(self, s):
+        print(s)
+    def trouble(self, s):
+        raise Exception(s)
+    def download(self, x):
+        self.result.append(x)
+
+md5 = lambda s: hashlib.md5(s.encode('utf-8')).hexdigest()
+
+class TestYoutubeSubtitles(unittest.TestCase):
+    def test_youtube_subtitles(self):
+        DL = FakeDownloader()
+        DL.params['writesubtitles'] = True
+        IE = YoutubeIE(DL)
+        info_dict = IE.extract('QRS8MkLhQmM')
+        self.assertEqual(md5(info_dict[0]['subtitles']), 'c3228550d59116f3c29fba370b55d033')
+
+    def test_youtube_subtitles_it(self):
+        DL = FakeDownloader()
+        DL.params['writesubtitles'] = True
+        DL.params['subtitleslang'] = 'it'
+        IE = YoutubeIE(DL)
+        info_dict = IE.extract('QRS8MkLhQmM')
+        self.assertEqual(md5(info_dict[0]['subtitles']), '132a88a0daf8e1520f393eb58f1f646a')
+
+if __name__ == '__main__':
+    unittest.main()
--- a/test/tests.json
+++ b/test/tests.json
@ -0,0 +1,164 @@
+[
+  {
+    "name": "Youtube",
+    "url":  "http://www.youtube.com/watch?v=BaW_jenozKc",
+    "file":  "BaW_jenozKc.mp4",
+    "info_dict": {
+      "title": "youtube-dl test video \"'/\\ä↭𝕐",
+      "uploader": "Philipp Hagemeister",
+      "uploader_id": "phihag",
+      "upload_date": "20121002",
+      "description": "test chars:  \"'/\\ä↭𝕐\n\nThis is a test video for youtube-dl.\n\nFor more information, contact phihag@phihag.de ."
+    }
+  },
+  {
+    "name": "Dailymotion",
+    "md5":  "392c4b85a60a90dc4792da41ce3144eb",
+    "url":  "http://www.dailymotion.com/video/x33vw9_tutoriel-de-youtubeur-dl-des-video_tech",
+    "file":  "x33vw9.mp4"
+  },
+  {
+    "name": "Metacafe",
+    "add_ie": ["Youtube"],
+    "url":  "http://metacafe.com/watch/yt-_aUehQsCQtM/the_electric_company_short_i_pbs_kids_go/",
+    "file":  "_aUehQsCQtM.flv"
+  },
+  {
+    "name": "BlipTV",
+    "md5":  "b2d849efcf7ee18917e4b4d9ff37cafe",
+    "url":  "http://blip.tv/cbr/cbr-exclusive-gotham-city-imposters-bats-vs-jokerz-short-3-5796352",
+    "file":  "5779306.m4v"
+  },
+  {
+    "name": "XVideos",
+    "md5":  "1d0c835822f0a71a7bf011855db929d0",
+    "url":  "http://www.xvideos.com/video939581/funny_porns_by_s_-1",
+    "file":  "939581.flv"
+  },
+  {
+    "name": "Vimeo",
+    "md5":  "8879b6cc097e987f02484baf890129e5",
+    "url":  "http://vimeo.com/56015672",
+    "file": "56015672.mp4",
+    "info_dict": {
+      "title": "youtube-dl test video - ★ \" ' 幸 / \\ ä ↭ 𝕐",
+      "uploader": "Filippo Valsorda",
+      "uploader_id": "user7108434",
+      "upload_date": "20121220",
+      "description": "This is a test case for youtube-dl.\nFor more information, see github.com/rg3/youtube-dl\nTest chars: ★ \" ' 幸 / \\ ä ↭ 𝕐"
+    }
+  },
+  {
+    "name": "Soundcloud",
+    "md5":  "ebef0a451b909710ed1d7787dddbf0d7",
+    "url":  "http://soundcloud.com/ethmusic/lostin-powers-she-so-heavy",
+    "file":  "62986583.mp3"
+  },
+  {
+    "name": "StanfordOpenClassroom",
+    "md5":  "544a9468546059d4e80d76265b0443b8",
+    "url":  "http://openclassroom.stanford.edu/MainFolder/VideoPage.php?course=PracticalUnix&video=intro-environment&speed=100",
+    "file":  "PracticalUnix_intro-environment.mp4"
+  },
+  {
+    "name": "XNXX",
+    "md5":  "0831677e2b4761795f68d417e0b7b445",
+    "url":  "http://video.xnxx.com/video1135332/lida_naked_funny_actress_5_",
+    "file":  "1135332.flv"
+  },
+  {
+    "name": "Youku",
+    "url": "http://v.youku.com/v_show/id_XNDgyMDQ2NTQw.html",
+    "file": "XNDgyMDQ2NTQw_part00.flv",
+    "md5": "ffe3f2e435663dc2d1eea34faeff5b5b",
+    "params": { "test": false }
+  },
+  {
+    "name": "NBA",
+    "url": "http://www.nba.com/video/games/nets/2012/12/04/0021200253-okc-bkn-recap.nba/index.html",
+    "file": "0021200253-okc-bkn-recap.nba.mp4",
+    "md5": "c0edcfc37607344e2ff8f13c378c88a4"
+  },
+  {
+    "name": "JustinTV",
+    "url": "http://www.twitch.tv/thegamedevhub/b/296128360",
+    "file": "296128360.flv",
+    "md5": "ecaa8a790c22a40770901460af191c9a"
+  },
+  {
+    "name": "MyVideo",
+    "url": "http://www.myvideo.de/watch/8229274/bowling_fail_or_win",
+    "file": "8229274.flv",
+    "md5": "2d2753e8130479ba2cb7e0a37002053e"
+  },
+  {
+    "name": "Escapist",
+    "url": "http://www.escapistmagazine.com/videos/view/the-escapist-presents/6618-Breaking-Down-Baldurs-Gate",
+    "file": "6618-Breaking-Down-Baldurs-Gate.flv",
+    "md5": "c6793dbda81388f4264c1ba18684a74d",
+    "skip": "Fails with timeout on Travis"
+  },
+  {
+    "name": "GooglePlus",
+    "url": "https://plus.google.com/u/0/108897254135232129896/posts/ZButuJc6CtH",
+    "file": "ZButuJc6CtH.flv"
+  },
+  {
+    "name": "FunnyOrDie",
+    "url": "http://www.funnyordie.com/videos/0732f586d7/heart-shaped-box-literal-video-version",
+    "file": "0732f586d7.mp4",
+    "md5": "f647e9e90064b53b6e046e75d0241fbd"
+  },
+  {
+    "name": "TweetReel",
+    "url": "http://tweetreel.com/?77smq",
+    "file": "77smq.mov",
+    "md5": "56b4d9ca9de467920f3f99a6d91255d6",
+    "info_dict": {
+        "uploader": "itszero",
+        "uploader_id": "itszero",
+        "upload_date": "20091225",
+        "description": "Installing Gentoo Linux on Powerbook G4, it turns out the sleep indicator becomes HDD activity indicator :D"
+    }
+  },
+  {
+    "name": "Steam",
+    "url": "http://store.steampowered.com/video/105600/",
+    "playlist": [
+      {
+        "file": "81300.flv",
+        "md5": "f870007cee7065d7c76b88f0a45ecc07",
+        "info_dict": {
+            "title": "Terraria 1.1 Trailer"
+        }
+      },
+      {
+        "file": "80859.flv",
+        "md5": "61aaf31a5c5c3041afb58fb83cbb5751",
+        "info_dict": {
+          "title": "Terraria Trailer"
+        }
+      }
+    ]
+  },
+  {
+    "name": "Ustream",
+    "url": "http://www.ustream.tv/recorded/20274954",
+    "file": "20274954.flv",
+    "md5": "088f151799e8f572f84eb62f17d73e5c",
+    "info_dict": {
+        "title": "Young Americans for Liberty February 7, 2012 2:28 AM"
+    }
+  },
+  {
+    "name": "InfoQ",
+    "url": "http://www.infoq.com/presentations/A-Few-of-My-Favorite-Python-Things",
+    "file": "12-jan-pythonthings.mp4",
+    "info_dict": {
+      "title": "A Few of My Favorite [Python] Things"
+    },
+    "params": {
+      "skip_download": true
+    }
+  }
+]
--- a/BIN
+++ b/BIN
--- a/youtube-dl.bash-completion
+++ b/youtube-dl.bash-completion
@ -1,14 +0,0 @@
-__youtube-dl()
-{
-    local cur prev opts
-    COMPREPLY=()
-    cur="${COMP_WORDS[COMP_CWORD]}"
-    opts="--all-formats --audio-format --audio-quality --auto-number --batch-file --console-title --continue --cookies --dump-user-agent --extract-audio --format --get-description --get-filename --get-format --get-thumbnail --get-title --get-url --help --id --ignore-errors --keep-video --list-extractors --list-formats --literal --match-title --max-downloads --max-quality --netrc --no-continue --no-mtime --no-overwrites --no-part --no-progress --output --password --playlist-end --playlist-start --prefer-free-formats --quiet --rate-limit --reject-title --retries --simulate --skip-download --srt-lang --title --update --user-agent --username --verbose --version --write-description --write-info-json --write-srt"
-
-    if [[ ${cur} == * ]] ; then
-        COMPREPLY=( $(compgen -W "${opts}" -- ${cur}) )
-        return 0
-    fi
-}
-
-complete -F __youtube-dl youtube-dl
--- a/youtube-dl.exe
+++ b/youtube-dl.exe
--- a/youtube_dl/FileDownloader.py
+++ b/youtube_dl/FileDownloader.py
--- a/youtube_dl/InfoExtractors.py
+++ b/youtube_dl/InfoExtractors.py
--- a/youtube_dl/PostProcessor.py
+++ b/youtube_dl/PostProcessor.py
@ -1,198 +1,204 @@
 #!/usr/bin/env python
 # -*- coding: utf-8 -*-

+from __future__ import absolute_import
+
 import os
 import subprocess
 import sys
 import time

-from utils import *
+from .utils import *


 class PostProcessor(object):
-	"""Post Processor class.
+    """Post Processor class.

-	PostProcessor objects can be added to downloaders with their
-	add_post_processor() method. When the downloader has finished a
-	successful download, it will take its internal chain of PostProcessors
-	and start calling the run() method on each one of them, first with
-	an initial argument and then with the returned value of the previous
-	PostProcessor.
+    PostProcessor objects can be added to downloaders with their
+    add_post_processor() method. When the downloader has finished a
+    successful download, it will take its internal chain of PostProcessors
+    and start calling the run() method on each one of them, first with
+    an initial argument and then with the returned value of the previous
+    PostProcessor.

-	The chain will be stopped if one of them ever returns None or the end
-	of the chain is reached.
+    The chain will be stopped if one of them ever returns None or the end
+    of the chain is reached.

-	PostProcessor objects follow a "mutual registration" process similar
-	to InfoExtractor objects.
-	"""
+    PostProcessor objects follow a "mutual registration" process similar
+    to InfoExtractor objects.
+    """

-	_downloader = None
+    _downloader = None

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

-	def set_downloader(self, downloader):
-		"""Sets the downloader for this PP."""
-		self._downloader = downloader
+    def set_downloader(self, downloader):
+        """Sets the downloader for this PP."""
+        self._downloader = downloader

-	def run(self, information):
-		"""Run the PostProcessor.
+    def run(self, information):
+        """Run the PostProcessor.

-		The "information" argument is a dictionary like the ones
-		composed by InfoExtractors. The only difference is that this
-		one has an extra field called "filepath" that points to the
-		downloaded file.
+        The "information" argument is a dictionary like the ones
+        composed by InfoExtractors. The only difference is that this
+        one has an extra field called "filepath" that points to the
+        downloaded file.

-		When this method returns None, the postprocessing chain is
-		stopped. However, this method may return an information
-		dictionary that will be passed to the next postprocessing
-		object in the chain. It can be the one it received after
-		changing some fields.
+        When this method returns None, the postprocessing chain is
+        stopped. However, this method may return an information
+        dictionary that will be passed to the next postprocessing
+        object in the chain. It can be the one it received after
+        changing some fields.

-		In addition, this method may raise a PostProcessingError
-		exception that will be taken into account by the downloader
-		it was called from.
-		"""
-		return information # by default, do nothing
+        In addition, this method may raise a PostProcessingError
+        exception that will be taken into account by the downloader
+        it was called from.
+        """
+        return information # by default, do nothing

 class AudioConversionError(BaseException):
-	def __init__(self, message):
-		self.message = message
+    def __init__(self, message):
+        self.message = message

 class FFmpegExtractAudioPP(PostProcessor):
-	def __init__(self, downloader=None, preferredcodec=None, preferredquality=None, keepvideo=False):
-		PostProcessor.__init__(self, downloader)
-		if preferredcodec is None:
-			preferredcodec = 'best'
-		self._preferredcodec = preferredcodec
-		self._preferredquality = preferredquality
-		self._keepvideo = keepvideo
-		self._exes = self.detect_executables()
+    def __init__(self, downloader=None, preferredcodec=None, preferredquality=None, keepvideo=False, nopostoverwrites=False):
+        PostProcessor.__init__(self, downloader)
+        if preferredcodec is None:
+            preferredcodec = 'best'
+        self._preferredcodec = preferredcodec
+        self._preferredquality = preferredquality
+        self._keepvideo = keepvideo
+        self._nopostoverwrites = nopostoverwrites
+        self._exes = self.detect_executables()

-	@staticmethod
-	def detect_executables():
-		def executable(exe):
-			try:
-				subprocess.Popen([exe, '-version'], stdout=subprocess.PIPE, stderr=subprocess.PIPE).communicate()
-			except OSError:
-				return False
-			return exe
-		programs = ['avprobe', 'avconv', 'ffmpeg', 'ffprobe']
-		return dict((program, executable(program)) for program in programs)
+    @staticmethod
+    def detect_executables():
+        def executable(exe):
+            try:
+                subprocess.Popen([exe, '-version'], stdout=subprocess.PIPE, stderr=subprocess.PIPE).communicate()
+            except OSError:
+                return False
+            return exe
+        programs = ['avprobe', 'avconv', 'ffmpeg', 'ffprobe']
+        return dict((program, executable(program)) for program in programs)

-	def get_audio_codec(self, path):
-		if not self._exes['ffprobe'] and not self._exes['avprobe']: return None
-		try:
-			cmd = [self._exes['avprobe'] or self._exes['ffprobe'], '-show_streams', '--', encodeFilename(path)]
-			handle = subprocess.Popen(cmd, stderr=file(os.path.devnull, 'w'), stdout=subprocess.PIPE)
-			output = handle.communicate()[0]
-			if handle.wait() != 0:
-				return None
-		except (IOError, OSError):
-			return None
-		audio_codec = None
-		for line in output.split('\n'):
-			if line.startswith('codec_name='):
-				audio_codec = line.split('=')[1].strip()
-			elif line.strip() == 'codec_type=audio' and audio_codec is not None:
-				return audio_codec
-		return None
+    def get_audio_codec(self, path):
+        if not self._exes['ffprobe'] and not self._exes['avprobe']: return None
+        try:
+            cmd = [self._exes['avprobe'] or self._exes['ffprobe'], '-show_streams', '--', encodeFilename(path)]
+            handle = subprocess.Popen(cmd, stderr=compat_subprocess_get_DEVNULL(), stdout=subprocess.PIPE)
+            output = handle.communicate()[0]
+            if handle.wait() != 0:
+                return None
+        except (IOError, OSError):
+            return None
+        audio_codec = None
+        for line in output.decode('ascii', 'ignore').split('\n'):
+            if line.startswith('codec_name='):
+                audio_codec = line.split('=')[1].strip()
+            elif line.strip() == 'codec_type=audio' and audio_codec is not None:
+                return audio_codec
+        return None

-	def run_ffmpeg(self, path, out_path, codec, more_opts):
-		if not self._exes['ffmpeg'] and not self._exes['avconv']:
-			raise AudioConversionError('ffmpeg or avconv not found. Please install one.')	
-		if codec is None:
-			acodec_opts = []
-		else:
-			acodec_opts = ['-acodec', codec]
-		cmd = ([self._exes['avconv'] or self._exes['ffmpeg'], '-y', '-i', encodeFilename(path), '-vn']
-			   + acodec_opts + more_opts +
-			   ['--', encodeFilename(out_path)])
-		p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
-		stdout,stderr = p.communicate()
-		if p.returncode != 0:
-			msg = stderr.strip().split('\n')[-1]
-			raise AudioConversionError(msg)
+    def run_ffmpeg(self, path, out_path, codec, more_opts):
+        if not self._exes['ffmpeg'] and not self._exes['avconv']:
+            raise AudioConversionError('ffmpeg or avconv not found. Please install one.')
+        if codec is None:
+            acodec_opts = []
+        else:
+            acodec_opts = ['-acodec', codec]
+        cmd = ([self._exes['avconv'] or self._exes['ffmpeg'], '-y', '-i', encodeFilename(path), '-vn']
+               + acodec_opts + more_opts +
+               ['--', encodeFilename(out_path)])
+        p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+        stdout,stderr = p.communicate()
+        if p.returncode != 0:
+            msg = stderr.strip().split('\n')[-1]
+            raise AudioConversionError(msg)

-	def run(self, information):
-		path = information['filepath']
+    def run(self, information):
+        path = information['filepath']

-		filecodec = self.get_audio_codec(path)
-		if filecodec is None:
-			self._downloader.to_stderr(u'WARNING: unable to obtain file audio codec with ffprobe')
-			return None
+        filecodec = self.get_audio_codec(path)
+        if filecodec is None:
+            self._downloader.to_stderr(u'WARNING: unable to obtain file audio codec with ffprobe')
+            return None

-		more_opts = []
-		if self._preferredcodec == 'best' or self._preferredcodec == filecodec or (self._preferredcodec == 'm4a' and filecodec == 'aac'):
-			if self._preferredcodec == 'm4a' and filecodec == 'aac':
-				# Lossless, but in another container
-				acodec = 'copy'
-				extension = self._preferredcodec
-				more_opts = [self._exes['avconv'] and '-bsf:a' or '-absf', 'aac_adtstoasc']
-			elif filecodec in ['aac', 'mp3', 'vorbis']:
-				# Lossless if possible
-				acodec = 'copy'
-				extension = filecodec
-				if filecodec == 'aac':
-					more_opts = ['-f', 'adts']
-				if filecodec == 'vorbis':
-					extension = 'ogg'
-			else:
-				# MP3 otherwise.
-				acodec = 'libmp3lame'
-				extension = 'mp3'
-				more_opts = []
-				if self._preferredquality is not None:
-					if int(self._preferredquality) < 10:
-						more_opts += [self._exes['avconv'] and '-q:a' or '-aq', self._preferredquality]
-					else:
-						more_opts += [self._exes['avconv'] and '-b:a' or '-ab', self._preferredquality + 'k']
-		else:
-			# We convert the audio (lossy)
-			acodec = {'mp3': 'libmp3lame', 'aac': 'aac', 'm4a': 'aac', 'vorbis': 'libvorbis', 'wav': None}[self._preferredcodec]
-			extension = self._preferredcodec
-			more_opts = []
-			if self._preferredquality is not None:
-				if int(self._preferredquality) < 10:
-					more_opts += [self._exes['avconv'] and '-q:a' or '-aq', self._preferredquality]
-				else:
-					more_opts += [self._exes['avconv'] and '-b:a' or '-ab', self._preferredquality + 'k']
-			if self._preferredcodec == 'aac':
-				more_opts += ['-f', 'adts']
-			if self._preferredcodec == 'm4a':
-				more_opts += [self._exes['avconv'] and '-bsf:a' or '-absf', 'aac_adtstoasc']
-			if self._preferredcodec == 'vorbis':
-				extension = 'ogg'
-			if self._preferredcodec == 'wav':
-				extension = 'wav'
-				more_opts += ['-f', 'wav']
+        more_opts = []
+        if self._preferredcodec == 'best' or self._preferredcodec == filecodec or (self._preferredcodec == 'm4a' and filecodec == 'aac'):
+            if self._preferredcodec == 'm4a' and filecodec == 'aac':
+                # Lossless, but in another container
+                acodec = 'copy'
+                extension = self._preferredcodec
+                more_opts = [self._exes['avconv'] and '-bsf:a' or '-absf', 'aac_adtstoasc']
+            elif filecodec in ['aac', 'mp3', 'vorbis']:
+                # Lossless if possible
+                acodec = 'copy'
+                extension = filecodec
+                if filecodec == 'aac':
+                    more_opts = ['-f', 'adts']
+                if filecodec == 'vorbis':
+                    extension = 'ogg'
+            else:
+                # MP3 otherwise.
+                acodec = 'libmp3lame'
+                extension = 'mp3'
+                more_opts = []
+                if self._preferredquality is not None:
+                    if int(self._preferredquality) < 10:
+                        more_opts += [self._exes['avconv'] and '-q:a' or '-aq', self._preferredquality]
+                    else:
+                        more_opts += [self._exes['avconv'] and '-b:a' or '-ab', self._preferredquality + 'k']
+        else:
+            # We convert the audio (lossy)
+            acodec = {'mp3': 'libmp3lame', 'aac': 'aac', 'm4a': 'aac', 'vorbis': 'libvorbis', 'wav': None}[self._preferredcodec]
+            extension = self._preferredcodec
+            more_opts = []
+            if self._preferredquality is not None:
+                if int(self._preferredquality) < 10:
+                    more_opts += [self._exes['avconv'] and '-q:a' or '-aq', self._preferredquality]
+                else:
+                    more_opts += [self._exes['avconv'] and '-b:a' or '-ab', self._preferredquality + 'k']
+            if self._preferredcodec == 'aac':
+                more_opts += ['-f', 'adts']
+            if self._preferredcodec == 'm4a':
+                more_opts += [self._exes['avconv'] and '-bsf:a' or '-absf', 'aac_adtstoasc']
+            if self._preferredcodec == 'vorbis':
+                extension = 'ogg'
+            if self._preferredcodec == 'wav':
+                extension = 'wav'
+                more_opts += ['-f', 'wav']

-		prefix, sep, ext = path.rpartition(u'.') # not os.path.splitext, since the latter does not work on unicode in all setups
-		new_path = prefix + sep + extension
-		self._downloader.to_screen(u'[' + (self._exes['avconv'] and 'avconv' or 'ffmpeg') + '] Destination: ' + new_path)
-		try:
-			self.run_ffmpeg(path, new_path, acodec, more_opts)
-		except:
-			etype,e,tb = sys.exc_info()
-			if isinstance(e, AudioConversionError):
-				self._downloader.to_stderr(u'ERROR: audio conversion failed: ' + e.message)
-			else:
-				self._downloader.to_stderr(u'ERROR: error running ' + (self._exes['avconv'] and 'avconv' or 'ffmpeg'))
-			return None
+        prefix, sep, ext = path.rpartition(u'.') # not os.path.splitext, since the latter does not work on unicode in all setups
+        new_path = prefix + sep + extension
+        try:
+            if self._nopostoverwrites and os.path.exists(encodeFilename(new_path)):
+                self._downloader.to_screen(u'[youtube] Post-process file %s exists, skipping' % new_path)
+            else:
+                self._downloader.to_screen(u'[' + (self._exes['avconv'] and 'avconv' or 'ffmpeg') + '] Destination: ' + new_path)
+                self.run_ffmpeg(path, new_path, acodec, more_opts)
+        except:
+            etype,e,tb = sys.exc_info()
+            if isinstance(e, AudioConversionError):
+                self._downloader.to_stderr(u'ERROR: audio conversion failed: ' + e.message)
+            else:
+                self._downloader.to_stderr(u'ERROR: error running ' + (self._exes['avconv'] and 'avconv' or 'ffmpeg'))
+            return None

- 		# Try to update the date time for extracted audio file.
-		if information.get('filetime') is not None:
-			try:
-				os.utime(encodeFilename(new_path), (time.time(), information['filetime']))
-			except:
-				self._downloader.to_stderr(u'WARNING: Cannot update utime of audio file')
+        # Try to update the date time for extracted audio file.
+        if information.get('filetime') is not None:
+            try:
+                os.utime(encodeFilename(new_path), (time.time(), information['filetime']))
+            except:
+                self._downloader.to_stderr(u'WARNING: Cannot update utime of audio file')

-		if not self._keepvideo:
-			try:
-				os.remove(encodeFilename(path))
-			except (IOError, OSError):
-				self._downloader.to_stderr(u'WARNING: Unable to remove downloaded video file')
-				return None
+        if not self._keepvideo:
+            try:
+                os.remove(encodeFilename(path))
+            except (IOError, OSError):
+                self._downloader.to_stderr(u'WARNING: Unable to remove downloaded video file')
+                return None

-		information['filepath'] = new_path
-		return information
+        information['filepath'] = new_path
+        return information
--- a/youtube_dl/init.py
+++ b/youtube_dl/init.py
@ -2,33 +2,30 @@
 # -*- coding: utf-8 -*-

 from __future__ import with_statement
+from __future__ import absolute_import

 __authors__  = (
-	'Ricardo Garcia Gonzalez',
-	'Danny Colligan',
-	'Benjamin Johnson',
-	'Vasyl\' Vavrychuk',
-	'Witold Baryluk',
-	'Paweł Paprota',
-	'Gergely Imreh',
-	'Rogério Brito',
-	'Philipp Hagemeister',
-	'Sören Schulze',
-	'Kevin Ngo',
-	'Ori Avtalion',
-	'shizeeg',
-	'Filippo Valsorda',
-	)
+    'Ricardo Garcia Gonzalez',
+    'Danny Colligan',
+    'Benjamin Johnson',
+    'Vasyl\' Vavrychuk',
+    'Witold Baryluk',
+    'Paweł Paprota',
+    'Gergely Imreh',
+    'Rogério Brito',
+    'Philipp Hagemeister',
+    'Sören Schulze',
+    'Kevin Ngo',
+    'Ori Avtalion',
+    'shizeeg',
+    'Filippo Valsorda',
+    'Christian Albrecht',
+    'Dave Vasilevsky',
+    'Jaime Marquínez Ferrándiz',
+    )

 __license__ = 'Public Domain'
-__version__ = '2012.10.09'

-UPDATE_URL = 'https://raw.github.com/rg3/youtube-dl/master/youtube-dl'
-UPDATE_URL_VERSION = 'https://raw.github.com/rg3/youtube-dl/master/LATEST_VERSION'
-UPDATE_URL_EXE = 'https://raw.github.com/rg3/youtube-dl/master/youtube-dl.exe'
-
-
-import cookielib
 import getpass
 import optparse
 import os
@ -37,530 +34,459 @@ import shlex
 import socket
 import subprocess
 import sys
-import urllib2
 import warnings
+import platform

-from utils import *
-from FileDownloader import *
-from InfoExtractors import *
-from PostProcessor import *
-
-def updateSelf(downloader, filename):
-	''' Update the program file with the latest version from the repository '''
-	# Note: downloader only used for options
-	
-	if not os.access(filename, os.W_OK):
-		sys.exit('ERROR: no write permissions on %s' % filename)
-
-	downloader.to_screen(u'Updating to latest version...')
-
-	urlv = urllib2.urlopen(UPDATE_URL_VERSION)
-	newversion = urlv.read().strip()
-	if newversion == __version__:
-		downloader.to_screen(u'youtube-dl is up-to-date (' + __version__ + ')')
-		return
-	urlv.close()
-
-	if hasattr(sys, "frozen"): #py2exe
-		exe = os.path.abspath(filename)
-		directory = os.path.dirname(exe)
-		if not os.access(directory, os.W_OK):
-			sys.exit('ERROR: no write permissions on %s' % directory)
-			
-		try:
-			urlh = urllib2.urlopen(UPDATE_URL_EXE)
-			newcontent = urlh.read()
-			urlh.close()
-			with open(exe + '.new', 'wb') as outf:
-				outf.write(newcontent)
-		except (IOError, OSError), err:
-			sys.exit('ERROR: unable to download latest version')
-			
-		try:
-			bat = os.path.join(directory, 'youtube-dl-updater.bat')
-			b = open(bat, 'w')
-			
-			print >> b, """
-echo Updating youtube-dl...
-ping 127.0.0.1 -n 5 -w 1000 > NUL
-move /Y "%s.new" "%s"
-del "%s"
-			""" %(exe, exe, bat)
-			
-			b.close()
-			
-			os.startfile(bat)
-		except (IOError, OSError), err:
-			sys.exit('ERROR: unable to overwrite current version')
-
-	else:
-		try:
-			urlh = urllib2.urlopen(UPDATE_URL)
-			newcontent = urlh.read()
-			urlh.close()
-		except (IOError, OSError), err:
-			sys.exit('ERROR: unable to download latest version')
-
-		try:
-			with open(filename, 'wb') as outf:
-				outf.write(newcontent)
-		except (IOError, OSError), err:
-			sys.exit('ERROR: unable to overwrite current version')
-
-	downloader.to_screen(u'Updated youtube-dl. Restart youtube-dl to use the new version.')
+from .utils import *
+from .update import update_self
+from .version import __version__
+from .FileDownloader import *
+from .InfoExtractors import gen_extractors
+from .PostProcessor import *

 def parseOpts():
-	def _readOptions(filename_bytes):
-		try:
-			optionf = open(filename_bytes)
-		except IOError:
-			return [] # silently skip if file is not present
-		try:
-			res = []
-			for l in optionf:
-				res += shlex.split(l, comments=True)
-		finally:
-			optionf.close()
-		return res
+    def _readOptions(filename_bytes):
+        try:
+            optionf = open(filename_bytes)
+        except IOError:
+            return [] # silently skip if file is not present
+        try:
+            res = []
+            for l in optionf:
+                res += shlex.split(l, comments=True)
+        finally:
+            optionf.close()
+        return res

-	def _format_option_string(option):
-		''' ('-o', '--option') -> -o, --format METAVAR'''
+    def _format_option_string(option):
+        ''' ('-o', '--option') -> -o, --format METAVAR'''

-		opts = []
+        opts = []

-		if option._short_opts: opts.append(option._short_opts[0])
-		if option._long_opts: opts.append(option._long_opts[0])
-		if len(opts) > 1: opts.insert(1, ', ')
+        if option._short_opts:
+            opts.append(option._short_opts[0])
+        if option._long_opts:
+            opts.append(option._long_opts[0])
+        if len(opts) > 1:
+            opts.insert(1, ', ')

-		if option.takes_value(): opts.append(' %s' % option.metavar)
+        if option.takes_value(): opts.append(' %s' % option.metavar)

-		return "".join(opts)
+        return "".join(opts)

-	def _find_term_columns():
-		columns = os.environ.get('COLUMNS', None)
-		if columns:
-			return int(columns)
+    def _find_term_columns():
+        columns = os.environ.get('COLUMNS', None)
+        if columns:
+            return int(columns)

-		try:
-			sp = subprocess.Popen(['stty', 'size'], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
-			out,err = sp.communicate()
-			return int(out.split()[1])
-		except:
-			pass
-		return None
+        try:
+            sp = subprocess.Popen(['stty', 'size'], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+            out,err = sp.communicate()
+            return int(out.split()[1])
+        except:
+            pass
+        return None

-	max_width = 80
-	max_help_position = 80
+    max_width = 80
+    max_help_position = 80

-	# No need to wrap help messages if we're on a wide console
-	columns = _find_term_columns()
-	if columns: max_width = columns
+    # No need to wrap help messages if we're on a wide console
+    columns = _find_term_columns()
+    if columns: max_width = columns

-	fmt = optparse.IndentedHelpFormatter(width=max_width, max_help_position=max_help_position)
-	fmt.format_option_strings = _format_option_string
+    fmt = optparse.IndentedHelpFormatter(width=max_width, max_help_position=max_help_position)
+    fmt.format_option_strings = _format_option_string

-	kw = {
-		'version'   : __version__,
-		'formatter' : fmt,
-		'usage' : '%prog [options] url [url...]',
-		'conflict_handler' : 'resolve',
-	}
+    kw = {
+        'version'   : __version__,
+        'formatter' : fmt,
+        'usage' : '%prog [options] url [url...]',
+        'conflict_handler' : 'resolve',
+    }

-	parser = optparse.OptionParser(**kw)
+    parser = optparse.OptionParser(**kw)

-	# option groups
-	general        = optparse.OptionGroup(parser, 'General Options')
-	selection      = optparse.OptionGroup(parser, 'Video Selection')
-	authentication = optparse.OptionGroup(parser, 'Authentication Options')
-	video_format   = optparse.OptionGroup(parser, 'Video Format Options')
-	postproc       = optparse.OptionGroup(parser, 'Post-processing Options')
-	filesystem     = optparse.OptionGroup(parser, 'Filesystem Options')
-	verbosity      = optparse.OptionGroup(parser, 'Verbosity / Simulation Options')
+    # option groups
+    general        = optparse.OptionGroup(parser, 'General Options')
+    selection      = optparse.OptionGroup(parser, 'Video Selection')
+    authentication = optparse.OptionGroup(parser, 'Authentication Options')
+    video_format   = optparse.OptionGroup(parser, 'Video Format Options')
+    postproc       = optparse.OptionGroup(parser, 'Post-processing Options')
+    filesystem     = optparse.OptionGroup(parser, 'Filesystem Options')
+    verbosity      = optparse.OptionGroup(parser, 'Verbosity / Simulation Options')

-	general.add_option('-h', '--help',
-			action='help', help='print this help text and exit')
-	general.add_option('-v', '--version',
-			action='version', help='print program version and exit')
-	general.add_option('-U', '--update',
-			action='store_true', dest='update_self', help='update this program to latest version')
-	general.add_option('-i', '--ignore-errors',
-			action='store_true', dest='ignoreerrors', help='continue on download errors', default=False)
-	general.add_option('-r', '--rate-limit',
-			dest='ratelimit', metavar='LIMIT', help='download rate limit (e.g. 50k or 44.6m)')
-	general.add_option('-R', '--retries',
-			dest='retries', metavar='RETRIES', help='number of retries (default is %default)', default=10)
-	general.add_option('--dump-user-agent',
-			action='store_true', dest='dump_user_agent',
-			help='display the current browser identification', default=False)
-	general.add_option('--user-agent',
-			dest='user_agent', help='specify a custom user agent', metavar='UA')
-	general.add_option('--list-extractors',
-			action='store_true', dest='list_extractors',
-			help='List all supported extractors and the URLs they would handle', default=False)
+    general.add_option('-h', '--help',
+            action='help', help='print this help text and exit')
+    general.add_option('-v', '--version',
+            action='version', help='print program version and exit')
+    general.add_option('-U', '--update',
+            action='store_true', dest='update_self', help='update this program to latest version')
+    general.add_option('-i', '--ignore-errors',
+            action='store_true', dest='ignoreerrors', help='continue on download errors', default=False)
+    general.add_option('-r', '--rate-limit',
+            dest='ratelimit', metavar='LIMIT', help='download rate limit (e.g. 50k or 44.6m)')
+    general.add_option('-R', '--retries',
+            dest='retries', metavar='RETRIES', help='number of retries (default is %default)', default=10)
+    general.add_option('--buffer-size',
+            dest='buffersize', metavar='SIZE', help='size of download buffer (e.g. 1024 or 16k) (default is %default)', default="1024")
+    general.add_option('--no-resize-buffer',
+            action='store_true', dest='noresizebuffer',
+            help='do not automatically adjust the buffer size. By default, the buffer size is automatically resized from an initial value of SIZE.', default=False)
+    general.add_option('--dump-user-agent',
+            action='store_true', dest='dump_user_agent',
+            help='display the current browser identification', default=False)
+    general.add_option('--user-agent',
+            dest='user_agent', help='specify a custom user agent', metavar='UA')
+    general.add_option('--list-extractors',
+            action='store_true', dest='list_extractors',
+            help='List all supported extractors and the URLs they would handle', default=False)
+    general.add_option('--test', action='store_true', dest='test', default=False, help=optparse.SUPPRESS_HELP)

-	selection.add_option('--playlist-start',
-			dest='playliststart', metavar='NUMBER', help='playlist video to start at (default is %default)', default=1)
-	selection.add_option('--playlist-end',
-			dest='playlistend', metavar='NUMBER', help='playlist video to end at (default is last)', default=-1)
-	selection.add_option('--match-title', dest='matchtitle', metavar='REGEX',help='download only matching titles (regex or caseless sub-string)')
-	selection.add_option('--reject-title', dest='rejecttitle', metavar='REGEX',help='skip download for matching titles (regex or caseless sub-string)')
-	selection.add_option('--max-downloads', metavar='NUMBER', dest='max_downloads', help='Abort after downloading NUMBER files', default=None)
+    selection.add_option('--playlist-start',
+            dest='playliststart', metavar='NUMBER', help='playlist video to start at (default is %default)', default=1)
+    selection.add_option('--playlist-end',
+            dest='playlistend', metavar='NUMBER', help='playlist video to end at (default is last)', default=-1)
+    selection.add_option('--match-title', dest='matchtitle', metavar='REGEX',help='download only matching titles (regex or caseless sub-string)')
+    selection.add_option('--reject-title', dest='rejecttitle', metavar='REGEX',help='skip download for matching titles (regex or caseless sub-string)')
+    selection.add_option('--max-downloads', metavar='NUMBER', dest='max_downloads', help='Abort after downloading NUMBER files', default=None)

-	authentication.add_option('-u', '--username',
-			dest='username', metavar='USERNAME', help='account username')
-	authentication.add_option('-p', '--password',
-			dest='password', metavar='PASSWORD', help='account password')
-	authentication.add_option('-n', '--netrc',
-			action='store_true', dest='usenetrc', help='use .netrc authentication data', default=False)
+    authentication.add_option('-u', '--username',
+            dest='username', metavar='USERNAME', help='account username')
+    authentication.add_option('-p', '--password',
+            dest='password', metavar='PASSWORD', help='account password')
+    authentication.add_option('-n', '--netrc',
+            action='store_true', dest='usenetrc', help='use .netrc authentication data', default=False)


-	video_format.add_option('-f', '--format',
-			action='store', dest='format', metavar='FORMAT', help='video format code')
-	video_format.add_option('--all-formats',
-			action='store_const', dest='format', help='download all available video formats', const='all')
-	video_format.add_option('--prefer-free-formats',
-			action='store_true', dest='prefer_free_formats', default=False, help='prefer free video formats unless a specific one is requested')
-	video_format.add_option('--max-quality',
-			action='store', dest='format_limit', metavar='FORMAT', help='highest quality format to download')
-	video_format.add_option('-F', '--list-formats',
-			action='store_true', dest='listformats', help='list all available formats (currently youtube only)')
-	video_format.add_option('--write-srt',
-			action='store_true', dest='writesubtitles',
-			help='write video closed captions to a .srt file (currently youtube only)', default=False)
-	video_format.add_option('--srt-lang',
-			action='store', dest='subtitleslang', metavar='LANG',
-			help='language of the closed captions to download (optional) use IETF language tags like \'en\'')
+    video_format.add_option('-f', '--format',
+            action='store', dest='format', metavar='FORMAT', help='video format code')
+    video_format.add_option('--all-formats',
+            action='store_const', dest='format', help='download all available video formats', const='all')
+    video_format.add_option('--prefer-free-formats',
+            action='store_true', dest='prefer_free_formats', default=False, help='prefer free video formats unless a specific one is requested')
+    video_format.add_option('--max-quality',
+            action='store', dest='format_limit', metavar='FORMAT', help='highest quality format to download')
+    video_format.add_option('-F', '--list-formats',
+            action='store_true', dest='listformats', help='list all available formats (currently youtube only)')
+    video_format.add_option('--write-srt',
+            action='store_true', dest='writesubtitles',
+            help='write video closed captions to a .srt file (currently youtube only)', default=False)
+    video_format.add_option('--srt-lang',
+            action='store', dest='subtitleslang', metavar='LANG',
+            help='language of the closed captions to download (optional) use IETF language tags like \'en\'')


-	verbosity.add_option('-q', '--quiet',
-			action='store_true', dest='quiet', help='activates quiet mode', default=False)
-	verbosity.add_option('-s', '--simulate',
-			action='store_true', dest='simulate', help='do not download the video and do not write anything to disk', default=False)
-	verbosity.add_option('--skip-download',
-			action='store_true', dest='skip_download', help='do not download the video', default=False)
-	verbosity.add_option('-g', '--get-url',
-			action='store_true', dest='geturl', help='simulate, quiet but print URL', default=False)
-	verbosity.add_option('-e', '--get-title',
-			action='store_true', dest='gettitle', help='simulate, quiet but print title', default=False)
-	verbosity.add_option('--get-thumbnail',
-			action='store_true', dest='getthumbnail',
-			help='simulate, quiet but print thumbnail URL', default=False)
-	verbosity.add_option('--get-description',
-			action='store_true', dest='getdescription',
-			help='simulate, quiet but print video description', default=False)
-	verbosity.add_option('--get-filename',
-			action='store_true', dest='getfilename',
-			help='simulate, quiet but print output filename', default=False)
-	verbosity.add_option('--get-format',
-			action='store_true', dest='getformat',
-			help='simulate, quiet but print output format', default=False)
-	verbosity.add_option('--no-progress',
-			action='store_true', dest='noprogress', help='do not print progress bar', default=False)
-	verbosity.add_option('--console-title',
-			action='store_true', dest='consoletitle',
-			help='display progress in console titlebar', default=False)
-	verbosity.add_option('-v', '--verbose',
-			action='store_true', dest='verbose', help='print various debugging information', default=False)
+    verbosity.add_option('-q', '--quiet',
+            action='store_true', dest='quiet', help='activates quiet mode', default=False)
+    verbosity.add_option('-s', '--simulate',
+            action='store_true', dest='simulate', help='do not download the video and do not write anything to disk', default=False)
+    verbosity.add_option('--skip-download',
+            action='store_true', dest='skip_download', help='do not download the video', default=False)
+    verbosity.add_option('-g', '--get-url',
+            action='store_true', dest='geturl', help='simulate, quiet but print URL', default=False)
+    verbosity.add_option('-e', '--get-title',
+            action='store_true', dest='gettitle', help='simulate, quiet but print title', default=False)
+    verbosity.add_option('--get-thumbnail',
+            action='store_true', dest='getthumbnail',
+            help='simulate, quiet but print thumbnail URL', default=False)
+    verbosity.add_option('--get-description',
+            action='store_true', dest='getdescription',
+            help='simulate, quiet but print video description', default=False)
+    verbosity.add_option('--get-filename',
+            action='store_true', dest='getfilename',
+            help='simulate, quiet but print output filename', default=False)
+    verbosity.add_option('--get-format',
+            action='store_true', dest='getformat',
+            help='simulate, quiet but print output format', default=False)
+    verbosity.add_option('--no-progress',
+            action='store_true', dest='noprogress', help='do not print progress bar', default=False)
+    verbosity.add_option('--console-title',
+            action='store_true', dest='consoletitle',
+            help='display progress in console titlebar', default=False)
+    verbosity.add_option('-v', '--verbose',
+            action='store_true', dest='verbose', help='print various debugging information', default=False)


-	filesystem.add_option('-t', '--title',
-			action='store_true', dest='usetitle', help='use title in file name', default=False)
-	filesystem.add_option('--id',
-			action='store_true', dest='useid', help='use video ID in file name', default=False)
-	filesystem.add_option('-l', '--literal',
-			action='store_true', dest='useliteral', help='use literal title in file name', default=False)
-	filesystem.add_option('-A', '--auto-number',
-			action='store_true', dest='autonumber',
-			help='number downloaded files starting from 00000', default=False)
-	filesystem.add_option('-o', '--output',
-			dest='outtmpl', metavar='TEMPLATE', help='output filename template. Use %(stitle)s to get the title, %(uploader)s for the uploader name, %(autonumber)s to get an automatically incremented number, %(ext)s for the filename extension, %(upload_date)s for the upload date (YYYYMMDD), %(extractor)s for the provider (youtube, metacafe, etc), %(id)s for the video id and %% for a literal percent. Use - to output to stdout.')
-	filesystem.add_option('-a', '--batch-file',
-			dest='batchfile', metavar='FILE', help='file containing URLs to download (\'-\' for stdin)')
-	filesystem.add_option('-w', '--no-overwrites',
-			action='store_true', dest='nooverwrites', help='do not overwrite files', default=False)
-	filesystem.add_option('-c', '--continue',
-			action='store_true', dest='continue_dl', help='resume partially downloaded files', default=True)
-	filesystem.add_option('--no-continue',
-			action='store_false', dest='continue_dl',
-			help='do not resume partially downloaded files (restart from beginning)')
-	filesystem.add_option('--cookies',
-			dest='cookiefile', metavar='FILE', help='file to read cookies from and dump cookie jar in')
-	filesystem.add_option('--no-part',
-			action='store_true', dest='nopart', help='do not use .part files', default=False)
-	filesystem.add_option('--no-mtime',
-			action='store_false', dest='updatetime',
-			help='do not use the Last-modified header to set the file modification time', default=True)
-	filesystem.add_option('--write-description',
-			action='store_true', dest='writedescription',
-			help='write video description to a .description file', default=False)
-	filesystem.add_option('--write-info-json',
-			action='store_true', dest='writeinfojson',
-			help='write video metadata to a .info.json file', default=False)
+    filesystem.add_option('-t', '--title',
+            action='store_true', dest='usetitle', help='use title in file name', default=False)
+    filesystem.add_option('--id',
+            action='store_true', dest='useid', help='use video ID in file name', default=False)
+    filesystem.add_option('-l', '--literal',
+            action='store_true', dest='usetitle', help='[deprecated] alias of --title', default=False)
+    filesystem.add_option('-A', '--auto-number',
+            action='store_true', dest='autonumber',
+            help='number downloaded files starting from 00000', default=False)
+    filesystem.add_option('-o', '--output',
+            dest='outtmpl', metavar='TEMPLATE', help='output filename template. Use %(title)s to get the title, %(uploader)s for the uploader name, %(uploader_id)s for the uploader nickname if different, %(autonumber)s to get an automatically incremented number, %(ext)s for the filename extension, %(upload_date)s for the upload date (YYYYMMDD), %(extractor)s for the provider (youtube, metacafe, etc), %(id)s for the video id and %% for a literal percent. Use - to output to stdout. Can also be used to download to a different directory, for example with -o \'/my/downloads/%(uploader)s/%(title)s-%(id)s.%(ext)s\' .')
+    filesystem.add_option('--restrict-filenames',
+            action='store_true', dest='restrictfilenames',
+            help='Restrict filenames to only ASCII characters, and avoid "&" and spaces in filenames', default=False)
+    filesystem.add_option('-a', '--batch-file',
+            dest='batchfile', metavar='FILE', help='file containing URLs to download (\'-\' for stdin)')
+    filesystem.add_option('-w', '--no-overwrites',
+            action='store_true', dest='nooverwrites', help='do not overwrite files', default=False)
+    filesystem.add_option('-c', '--continue',
+            action='store_true', dest='continue_dl', help='resume partially downloaded files', default=True)
+    filesystem.add_option('--no-continue',
+            action='store_false', dest='continue_dl',
+            help='do not resume partially downloaded files (restart from beginning)')
+    filesystem.add_option('--cookies',
+            dest='cookiefile', metavar='FILE', help='file to read cookies from and dump cookie jar in')
+    filesystem.add_option('--no-part',
+            action='store_true', dest='nopart', help='do not use .part files', default=False)
+    filesystem.add_option('--no-mtime',
+            action='store_false', dest='updatetime',
+            help='do not use the Last-modified header to set the file modification time', default=True)
+    filesystem.add_option('--write-description',
+            action='store_true', dest='writedescription',
+            help='write video description to a .description file', default=False)
+    filesystem.add_option('--write-info-json',
+            action='store_true', dest='writeinfojson',
+            help='write video metadata to a .info.json file', default=False)


-	postproc.add_option('-x', '--extract-audio', action='store_true', dest='extractaudio', default=False,
-			help='convert video files to audio-only files (requires ffmpeg or avconv and ffprobe or avprobe)')
-	postproc.add_option('--audio-format', metavar='FORMAT', dest='audioformat', default='best',
-			help='"best", "aac", "vorbis", "mp3", "m4a", or "wav"; best by default')
-	postproc.add_option('--audio-quality', metavar='QUALITY', dest='audioquality', default='5',
-			help='ffmpeg/avconv audio quality specification, insert a value between 0 (better) and 9 (worse) for VBR or a specific bitrate like 128K (default 5)')
-	postproc.add_option('-k', '--keep-video', action='store_true', dest='keepvideo', default=False,
-			help='keeps the video file on disk after the post-processing; the video is erased by default')
+    postproc.add_option('-x', '--extract-audio', action='store_true', dest='extractaudio', default=False,
+            help='convert video files to audio-only files (requires ffmpeg or avconv and ffprobe or avprobe)')
+    postproc.add_option('--audio-format', metavar='FORMAT', dest='audioformat', default='best',
+            help='"best", "aac", "vorbis", "mp3", "m4a", or "wav"; best by default')
+    postproc.add_option('--audio-quality', metavar='QUALITY', dest='audioquality', default='5',
+            help='ffmpeg/avconv audio quality specification, insert a value between 0 (better) and 9 (worse) for VBR or a specific bitrate like 128K (default 5)')
+    postproc.add_option('-k', '--keep-video', action='store_true', dest='keepvideo', default=False,
+            help='keeps the video file on disk after the post-processing; the video is erased by default')
+    postproc.add_option('--no-post-overwrites', action='store_true', dest='nopostoverwrites', default=False,
+            help='do not overwrite post-processed files; the post-processed files are overwritten by default')


-	parser.add_option_group(general)
-	parser.add_option_group(selection)
-	parser.add_option_group(filesystem)
-	parser.add_option_group(verbosity)
-	parser.add_option_group(video_format)
-	parser.add_option_group(authentication)
-	parser.add_option_group(postproc)
+    parser.add_option_group(general)
+    parser.add_option_group(selection)
+    parser.add_option_group(filesystem)
+    parser.add_option_group(verbosity)
+    parser.add_option_group(video_format)
+    parser.add_option_group(authentication)
+    parser.add_option_group(postproc)

-	xdg_config_home = os.environ.get('XDG_CONFIG_HOME')
-	if xdg_config_home:
-		userConf = os.path.join(xdg_config_home, 'youtube-dl.conf')
-	else:
-		userConf = os.path.join(os.path.expanduser('~'), '.config', 'youtube-dl.conf')
-	argv = _readOptions('/etc/youtube-dl.conf') + _readOptions(userConf) + sys.argv[1:]
-	opts, args = parser.parse_args(argv)
+    xdg_config_home = os.environ.get('XDG_CONFIG_HOME')
+    if xdg_config_home:
+        userConf = os.path.join(xdg_config_home, 'youtube-dl.conf')
+    else:
+        userConf = os.path.join(os.path.expanduser('~'), '.config', 'youtube-dl.conf')
+    argv = _readOptions('/etc/youtube-dl.conf') + _readOptions(userConf) + sys.argv[1:]
+    opts, args = parser.parse_args(argv)

-	return parser, opts, args
-
-def gen_extractors():
-	""" Return a list of an instance of every supported extractor.
-	The order does matter; the first extractor matched is the one handling the URL.
-	"""
-	return [
-		YoutubePlaylistIE(),
-		YoutubeChannelIE(),
-		YoutubeUserIE(),
-		YoutubeSearchIE(),
-		YoutubeIE(),
-		MetacafeIE(),
-		DailymotionIE(),
-		GoogleIE(),
-		GoogleSearchIE(),
-		PhotobucketIE(),
-		YahooIE(),
-		YahooSearchIE(),
-		DepositFilesIE(),
-		FacebookIE(),
-		BlipTVUserIE(),
-		BlipTVIE(),
-		VimeoIE(),
-		MyVideoIE(),
-		ComedyCentralIE(),
-		EscapistIE(),
-		CollegeHumorIE(),
-		XVideosIE(),
-		SoundcloudIE(),
-		InfoQIE(),
-		MixcloudIE(),
-		StanfordOpenClassroomIE(),
-		MTVIE(),
-		YoukuIE(),
-		XNXXIE(),
-		GooglePlusIE(),
-		PornotubeIE(),
-		YouPornIE(),
-		YouJizzIE(),
-		GenericIE()
-	]
+    return parser, opts, args

 def _real_main():
-	parser, opts, args = parseOpts()
+    parser, opts, args = parseOpts()

-	# Open appropriate CookieJar
-	if opts.cookiefile is None:
-		jar = cookielib.CookieJar()
-	else:
-		try:
-			jar = cookielib.MozillaCookieJar(opts.cookiefile)
-			if os.path.isfile(opts.cookiefile) and os.access(opts.cookiefile, os.R_OK):
-				jar.load()
-		except (IOError, OSError), err:
-			sys.exit(u'ERROR: unable to open cookie file')
-	# Set user agent
-	if opts.user_agent is not None:
-		std_headers['User-Agent'] = opts.user_agent
+    # Open appropriate CookieJar
+    if opts.cookiefile is None:
+        jar = compat_cookiejar.CookieJar()
+    else:
+        try:
+            jar = compat_cookiejar.MozillaCookieJar(opts.cookiefile)
+            if os.path.isfile(opts.cookiefile) and os.access(opts.cookiefile, os.R_OK):
+                jar.load()
+        except (IOError, OSError) as err:
+            sys.exit(u'ERROR: unable to open cookie file')
+    # Set user agent
+    if opts.user_agent is not None:
+        std_headers['User-Agent'] = opts.user_agent

-	# Dump user agent
-	if opts.dump_user_agent:
-		print std_headers['User-Agent']
-		sys.exit(0)
+    # Dump user agent
+    if opts.dump_user_agent:
+        print(std_headers['User-Agent'])
+        sys.exit(0)

-	# Batch file verification
-	batchurls = []
-	if opts.batchfile is not None:
-		try:
-			if opts.batchfile == '-':
-				batchfd = sys.stdin
-			else:
-				batchfd = open(opts.batchfile, 'r')
-			batchurls = batchfd.readlines()
-			batchurls = [x.strip() for x in batchurls]
-			batchurls = [x for x in batchurls if len(x) > 0 and not re.search(r'^[#/;]', x)]
-		except IOError:
-			sys.exit(u'ERROR: batch file could not be read')
-	all_urls = batchurls + args
-	all_urls = map(lambda url: url.strip(), all_urls)
+    # Batch file verification
+    batchurls = []
+    if opts.batchfile is not None:
+        try:
+            if opts.batchfile == '-':
+                batchfd = sys.stdin
+            else:
+                batchfd = open(opts.batchfile, 'r')
+            batchurls = batchfd.readlines()
+            batchurls = [x.strip() for x in batchurls]
+            batchurls = [x for x in batchurls if len(x) > 0 and not re.search(r'^[#/;]', x)]
+        except IOError:
+            sys.exit(u'ERROR: batch file could not be read')
+    all_urls = batchurls + args
+    all_urls = [url.strip() for url in all_urls]

-	# General configuration
-	cookie_processor = urllib2.HTTPCookieProcessor(jar)
-	proxy_handler = urllib2.ProxyHandler()
-	opener = urllib2.build_opener(proxy_handler, cookie_processor, YoutubeDLHandler())
-	urllib2.install_opener(opener)
-	socket.setdefaulttimeout(300) # 5 minutes should be enough (famous last words)
+    # General configuration
+    cookie_processor = compat_urllib_request.HTTPCookieProcessor(jar)
+    proxy_handler = compat_urllib_request.ProxyHandler()
+    opener = compat_urllib_request.build_opener(proxy_handler, cookie_processor, YoutubeDLHandler())
+    compat_urllib_request.install_opener(opener)
+    socket.setdefaulttimeout(300) # 5 minutes should be enough (famous last words)

-	extractors = gen_extractors()
+    extractors = gen_extractors()

-	if opts.list_extractors:
-		for ie in extractors:
-			print(ie.IE_NAME)
-			matchedUrls = filter(lambda url: ie.suitable(url), all_urls)
-			all_urls = filter(lambda url: url not in matchedUrls, all_urls)
-			for mu in matchedUrls:
-				print(u'  ' + mu)
-		sys.exit(0)
+    if opts.list_extractors:
+        for ie in extractors:
+            print(ie.IE_NAME + (' (CURRENTLY BROKEN)' if not ie._WORKING else ''))
+            matchedUrls = [url for url in all_urls if ie.suitable(url)]
+            all_urls = [url for url in all_urls if url not in matchedUrls]
+            for mu in matchedUrls:
+                print(u'  ' + mu)
+        sys.exit(0)

-	# Conflicting, missing and erroneous options
-	if opts.usenetrc and (opts.username is not None or opts.password is not None):
-		parser.error(u'using .netrc conflicts with giving username/password')
-	if opts.password is not None and opts.username is None:
-		parser.error(u'account username missing')
-	if opts.outtmpl is not None and (opts.useliteral or opts.usetitle or opts.autonumber or opts.useid):
-		parser.error(u'using output template conflicts with using title, literal title, video ID or auto number')
-	if opts.usetitle and opts.useliteral:
-		parser.error(u'using title conflicts with using literal title')
-	if opts.usetitle and opts.useid:
-		parser.error(u'using title conflicts with using video ID')
-	if opts.useliteral and opts.useid:
-		parser.error(u'using literal title conflicts with using video ID')
-	if opts.username is not None and opts.password is None:
-		opts.password = getpass.getpass(u'Type account password and press return:')
-	if opts.ratelimit is not None:
-		numeric_limit = FileDownloader.parse_bytes(opts.ratelimit)
-		if numeric_limit is None:
-			parser.error(u'invalid rate limit specified')
-		opts.ratelimit = numeric_limit
-	if opts.retries is not None:
-		try:
-			opts.retries = long(opts.retries)
-		except (TypeError, ValueError), err:
-			parser.error(u'invalid retry count specified')
-	try:
-		opts.playliststart = int(opts.playliststart)
-		if opts.playliststart <= 0:
-			raise ValueError(u'Playlist start must be positive')
-	except (TypeError, ValueError), err:
-		parser.error(u'invalid playlist start number specified')
-	try:
-		opts.playlistend = int(opts.playlistend)
-		if opts.playlistend != -1 and (opts.playlistend <= 0 or opts.playlistend < opts.playliststart):
-			raise ValueError(u'Playlist end must be greater than playlist start')
-	except (TypeError, ValueError), err:
-		parser.error(u'invalid playlist end number specified')
-	if opts.extractaudio:
-		if opts.audioformat not in ['best', 'aac', 'mp3', 'vorbis', 'm4a', 'wav']:
-			parser.error(u'invalid audio format specified')
-	if opts.audioquality:
-		opts.audioquality = opts.audioquality.strip('k').strip('K')
-		if not opts.audioquality.isdigit():
-			parser.error(u'invalid audio quality specified')
+    # Conflicting, missing and erroneous options
+    if opts.usenetrc and (opts.username is not None or opts.password is not None):
+        parser.error(u'using .netrc conflicts with giving username/password')
+    if opts.password is not None and opts.username is None:
+        parser.error(u'account username missing')
+    if opts.outtmpl is not None and (opts.usetitle or opts.autonumber or opts.useid):
+        parser.error(u'using output template conflicts with using title, video ID or auto number')
+    if opts.usetitle and opts.useid:
+        parser.error(u'using title conflicts with using video ID')
+    if opts.username is not None and opts.password is None:
+        opts.password = getpass.getpass(u'Type account password and press return:')
+    if opts.ratelimit is not None:
+        numeric_limit = FileDownloader.parse_bytes(opts.ratelimit)
+        if numeric_limit is None:
+            parser.error(u'invalid rate limit specified')
+        opts.ratelimit = numeric_limit
+    if opts.retries is not None:
+        try:
+            opts.retries = int(opts.retries)
+        except (TypeError, ValueError) as err:
+            parser.error(u'invalid retry count specified')
+    if opts.buffersize is not None:
+        numeric_buffersize = FileDownloader.parse_bytes(opts.buffersize)
+        if numeric_buffersize is None:
+            parser.error(u'invalid buffer size specified')
+        opts.buffersize = numeric_buffersize
+    try:
+        opts.playliststart = int(opts.playliststart)
+        if opts.playliststart <= 0:
+            raise ValueError(u'Playlist start must be positive')
+    except (TypeError, ValueError) as err:
+        parser.error(u'invalid playlist start number specified')
+    try:
+        opts.playlistend = int(opts.playlistend)
+        if opts.playlistend != -1 and (opts.playlistend <= 0 or opts.playlistend < opts.playliststart):
+            raise ValueError(u'Playlist end must be greater than playlist start')
+    except (TypeError, ValueError) as err:
+        parser.error(u'invalid playlist end number specified')
+    if opts.extractaudio:
+        if opts.audioformat not in ['best', 'aac', 'mp3', 'vorbis', 'm4a', 'wav']:
+            parser.error(u'invalid audio format specified')
+    if opts.audioquality:
+        opts.audioquality = opts.audioquality.strip('k').strip('K')
+        if not opts.audioquality.isdigit():
+            parser.error(u'invalid audio quality specified')

-	# File downloader
-	fd = FileDownloader({
-		'usenetrc': opts.usenetrc,
-		'username': opts.username,
-		'password': opts.password,
-		'quiet': (opts.quiet or opts.geturl or opts.gettitle or opts.getthumbnail or opts.getdescription or opts.getfilename or opts.getformat),
-		'forceurl': opts.geturl,
-		'forcetitle': opts.gettitle,
-		'forcethumbnail': opts.getthumbnail,
-		'forcedescription': opts.getdescription,
-		'forcefilename': opts.getfilename,
-		'forceformat': opts.getformat,
-		'simulate': opts.simulate,
-		'skip_download': (opts.skip_download or opts.simulate or opts.geturl or opts.gettitle or opts.getthumbnail or opts.getdescription or opts.getfilename or opts.getformat),
-		'format': opts.format,
-		'format_limit': opts.format_limit,
-		'listformats': opts.listformats,
-		'outtmpl': ((opts.outtmpl is not None and opts.outtmpl.decode(preferredencoding()))
-			or (opts.format == '-1' and opts.usetitle and u'%(stitle)s-%(id)s-%(format)s.%(ext)s')
-			or (opts.format == '-1' and opts.useliteral and u'%(title)s-%(id)s-%(format)s.%(ext)s')
-			or (opts.format == '-1' and u'%(id)s-%(format)s.%(ext)s')
-			or (opts.usetitle and opts.autonumber and u'%(autonumber)s-%(stitle)s-%(id)s.%(ext)s')
-			or (opts.useliteral and opts.autonumber and u'%(autonumber)s-%(title)s-%(id)s.%(ext)s')
-			or (opts.usetitle and u'%(stitle)s-%(id)s.%(ext)s')
-			or (opts.useliteral and u'%(title)s-%(id)s.%(ext)s')
-			or (opts.useid and u'%(id)s.%(ext)s')
-			or (opts.autonumber and u'%(autonumber)s-%(id)s.%(ext)s')
-			or u'%(id)s.%(ext)s'),
-		'ignoreerrors': opts.ignoreerrors,
-		'ratelimit': opts.ratelimit,
-		'nooverwrites': opts.nooverwrites,
-		'retries': opts.retries,
-		'continuedl': opts.continue_dl,
-		'noprogress': opts.noprogress,
-		'playliststart': opts.playliststart,
-		'playlistend': opts.playlistend,
-		'logtostderr': opts.outtmpl == '-',
-		'consoletitle': opts.consoletitle,
-		'nopart': opts.nopart,
-		'updatetime': opts.updatetime,
-		'writedescription': opts.writedescription,
-		'writeinfojson': opts.writeinfojson,
-		'writesubtitles': opts.writesubtitles,
-		'subtitleslang': opts.subtitleslang,
-		'matchtitle': opts.matchtitle,
-		'rejecttitle': opts.rejecttitle,
-		'max_downloads': opts.max_downloads,
-		'prefer_free_formats': opts.prefer_free_formats,
-		'verbose': opts.verbose,
-		})
+    if sys.version_info < (3,):
+        # In Python 2, sys.argv is a bytestring (also note http://bugs.python.org/issue2128 for Windows systems)
+        if opts.outtmpl is not None:
+            opts.outtmpl = opts.outtmpl.decode(preferredencoding())
+    outtmpl =((opts.outtmpl is not None and opts.outtmpl)
+            or (opts.format == '-1' and opts.usetitle and u'%(title)s-%(id)s-%(format)s.%(ext)s')
+            or (opts.format == '-1' and u'%(id)s-%(format)s.%(ext)s')
+            or (opts.usetitle and opts.autonumber and u'%(autonumber)s-%(title)s-%(id)s.%(ext)s')
+            or (opts.usetitle and u'%(title)s-%(id)s.%(ext)s')
+            or (opts.useid and u'%(id)s.%(ext)s')
+            or (opts.autonumber and u'%(autonumber)s-%(id)s.%(ext)s')
+            or u'%(id)s.%(ext)s')
+    # File downloader
+    fd = FileDownloader({
+        'usenetrc': opts.usenetrc,
+        'username': opts.username,
+        'password': opts.password,
+        'quiet': (opts.quiet or opts.geturl or opts.gettitle or opts.getthumbnail or opts.getdescription or opts.getfilename or opts.getformat),
+        'forceurl': opts.geturl,
+        'forcetitle': opts.gettitle,
+        'forcethumbnail': opts.getthumbnail,
+        'forcedescription': opts.getdescription,
+        'forcefilename': opts.getfilename,
+        'forceformat': opts.getformat,
+        'simulate': opts.simulate,
+        'skip_download': (opts.skip_download or opts.simulate or opts.geturl or opts.gettitle or opts.getthumbnail or opts.getdescription or opts.getfilename or opts.getformat),
+        'format': opts.format,
+        'format_limit': opts.format_limit,
+        'listformats': opts.listformats,
+        'outtmpl': outtmpl,
+        'restrictfilenames': opts.restrictfilenames,
+        'ignoreerrors': opts.ignoreerrors,
+        'ratelimit': opts.ratelimit,
+        'nooverwrites': opts.nooverwrites,
+        'retries': opts.retries,
+        'buffersize': opts.buffersize,
+        'noresizebuffer': opts.noresizebuffer,
+        'continuedl': opts.continue_dl,
+        'noprogress': opts.noprogress,
+        'playliststart': opts.playliststart,
+        'playlistend': opts.playlistend,
+        'logtostderr': opts.outtmpl == '-',
+        'consoletitle': opts.consoletitle,
+        'nopart': opts.nopart,
+        'updatetime': opts.updatetime,
+        'writedescription': opts.writedescription,
+        'writeinfojson': opts.writeinfojson,
+        'writesubtitles': opts.writesubtitles,
+        'subtitleslang': opts.subtitleslang,
+        'matchtitle': opts.matchtitle,
+        'rejecttitle': opts.rejecttitle,
+        'max_downloads': opts.max_downloads,
+        'prefer_free_formats': opts.prefer_free_formats,
+        'verbose': opts.verbose,
+        'test': opts.test,
+        })

-	if opts.verbose:
-		fd.to_screen(u'[debug] Proxy map: ' + str(proxy_handler.proxies))
+    if opts.verbose:
+        fd.to_screen(u'[debug] youtube-dl version ' + __version__)
+        try:
+            sp = subprocess.Popen(['git', 'rev-parse', '--short', 'HEAD'], stdout=subprocess.PIPE, stderr=subprocess.PIPE,
+                                  cwd=os.path.dirname(os.path.abspath(__file__)))
+            out, err = sp.communicate()
+            out = out.decode().strip()
+            if re.match('[0-9a-f]+', out):
+                fd.to_screen(u'[debug] Git HEAD: ' + out)
+        except:
+            pass
+        fd.to_screen(u'[debug] Python version %s - %s' %(platform.python_version(), platform.platform()))
+        fd.to_screen(u'[debug] Proxy map: ' + str(proxy_handler.proxies))

-	for extractor in extractors:
-		fd.add_info_extractor(extractor)
+    for extractor in extractors:
+        fd.add_info_extractor(extractor)

-	# PostProcessors
-	if opts.extractaudio:
-		fd.add_post_processor(FFmpegExtractAudioPP(preferredcodec=opts.audioformat, preferredquality=opts.audioquality, keepvideo=opts.keepvideo))
+    # PostProcessors
+    if opts.extractaudio:
+        fd.add_post_processor(FFmpegExtractAudioPP(preferredcodec=opts.audioformat, preferredquality=opts.audioquality, keepvideo=opts.keepvideo, nopostoverwrites=opts.nopostoverwrites))

-	# Update version
-	if opts.update_self:
-		updateSelf(fd, sys.argv[0])
+    # Update version
+    if opts.update_self:
+        update_self(fd.to_screen, opts.verbose, sys.argv[0])

-	# Maybe do nothing
-	if len(all_urls) < 1:
-		if not opts.update_self:
-			parser.error(u'you must provide at least one URL')
-		else:
-			sys.exit()
-	
-	try:
-		retcode = fd.download(all_urls)
-	except MaxDownloadsReached:
-		fd.to_screen(u'--max-download limit reached, aborting.')
-		retcode = 101
+    # Maybe do nothing
+    if len(all_urls) < 1:
+        if not opts.update_self:
+            parser.error(u'you must provide at least one URL')
+        else:
+            sys.exit()

-	# Dump cookie jar if requested
-	if opts.cookiefile is not None:
-		try:
-			jar.save()
-		except (IOError, OSError), err:
-			sys.exit(u'ERROR: unable to save cookie jar')
+    try:
+        retcode = fd.download(all_urls)
+    except MaxDownloadsReached:
+        fd.to_screen(u'--max-download limit reached, aborting.')
+        retcode = 101

-	sys.exit(retcode)
+    # Dump cookie jar if requested
+    if opts.cookiefile is not None:
+        try:
+            jar.save()
+        except (IOError, OSError) as err:
+            sys.exit(u'ERROR: unable to save cookie jar')
+
+    sys.exit(retcode)

 def main():
-	try:
-		_real_main()
-	except DownloadError:
-		sys.exit(1)
-	except SameFileError:
-		sys.exit(u'ERROR: fixed output name but more than one file to download')
-	except KeyboardInterrupt:
-		sys.exit(u'\nERROR: Interrupted by user')
+    try:
+        _real_main()
+    except DownloadError:
+        sys.exit(1)
+    except SameFileError:
+        sys.exit(u'ERROR: fixed output name but more than one file to download')
+    except KeyboardInterrupt:
+        sys.exit(u'\nERROR: Interrupted by user')
--- a/youtube_dl/main.py
+++ b/youtube_dl/main.py
@ -1,7 +1,17 @@
 #!/usr/bin/env python
-# -*- coding: utf-8 -*-

-import __init__
+# Execute with
+# $ python youtube_dl/__main__.py (2.6+)
+# $ python -m youtube_dl          (2.7+)
+
+import sys
+
+if __package__ is None and not hasattr(sys, "frozen"):
+    # direct call of __main__.py
+    import os.path
+    sys.path.append(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
+
+import youtube_dl

 if __name__ == '__main__':
-	__init__.main()
+    youtube_dl.main()
--- a/youtube_dl/update.py
+++ b/youtube_dl/update.py
@ -0,0 +1,160 @@
+import json
+import traceback
+import hashlib
+from zipimport import zipimporter
+
+from .utils import *
+from .version import __version__
+
+def rsa_verify(message, signature, key):
+    from struct import pack
+    from hashlib import sha256
+    from sys import version_info
+    def b(x):
+        if version_info[0] == 2: return x
+        else: return x.encode('latin1')
+    assert(type(message) == type(b('')))
+    block_size = 0
+    n = key[0]
+    while n:
+        block_size += 1
+        n >>= 8
+    signature = pow(int(signature, 16), key[1], key[0])
+    raw_bytes = []
+    while signature:
+        raw_bytes.insert(0, pack("B", signature & 0xFF))
+        signature >>= 8
+    signature = (block_size - len(raw_bytes)) * b('\x00') + b('').join(raw_bytes)
+    if signature[0:2] != b('\x00\x01'): return False
+    signature = signature[2:]
+    if not b('\x00') in signature: return False
+    signature = signature[signature.index(b('\x00'))+1:]
+    if not signature.startswith(b('\x30\x31\x30\x0D\x06\x09\x60\x86\x48\x01\x65\x03\x04\x02\x01\x05\x00\x04\x20')): return False
+    signature = signature[19:]
+    if signature != sha256(message).digest(): return False
+    return True
+
+def update_self(to_screen, verbose, filename):
+    """Update the program file with the latest version from the repository"""
+
+    UPDATE_URL = "http://rg3.github.com/youtube-dl/update/"
+    VERSION_URL = UPDATE_URL + 'LATEST_VERSION'
+    JSON_URL = UPDATE_URL + 'versions.json'
+    UPDATES_RSA_KEY = (0x9d60ee4d8f805312fdb15a62f87b95bd66177b91df176765d13514a0f1754bcd2057295c5b6f1d35daa6742c3ffc9a82d3e118861c207995a8031e151d863c9927e304576bc80692bc8e094896fcf11b66f3e29e04e3a71e9a11558558acea1840aec37fc396fb6b65dc81a1c4144e03bd1c011de62e3f1357b327d08426fe93, 65537)
+
+
+    if not isinstance(globals().get('__loader__'), zipimporter) and not hasattr(sys, "frozen"):
+        to_screen(u'It looks like you installed youtube-dl with pip, setup.py or a tarball. Please use that to update.')
+        return
+
+    # Check if there is a new version
+    try:
+        newversion = compat_urllib_request.urlopen(VERSION_URL).read().decode('utf-8').strip()
+    except:
+        if verbose: to_screen(compat_str(traceback.format_exc()))
+        to_screen(u'ERROR: can\'t find the current version. Please try again later.')
+        return
+    if newversion == __version__:
+        to_screen(u'youtube-dl is up-to-date (' + __version__ + ')')
+        return
+
+    # Download and check versions info
+    try:
+        versions_info = compat_urllib_request.urlopen(JSON_URL).read().decode('utf-8')
+        versions_info = json.loads(versions_info)
+    except:
+        if verbose: to_screen(compat_str(traceback.format_exc()))
+        to_screen(u'ERROR: can\'t obtain versions info. Please try again later.')
+        return
+    if not 'signature' in versions_info:
+        to_screen(u'ERROR: the versions file is not signed or corrupted. Aborting.')
+        return
+    signature = versions_info['signature']
+    del versions_info['signature']
+    if not rsa_verify(json.dumps(versions_info, sort_keys=True).encode('utf-8'), signature, UPDATES_RSA_KEY):
+        to_screen(u'ERROR: the versions file signature is invalid. Aborting.')
+        return
+
+    to_screen(u'Updating to version ' + versions_info['latest'] + '...')
+    version = versions_info['versions'][versions_info['latest']]
+    if version.get('notes'):
+        to_screen(u'PLEASE NOTE:')
+        for note in version['notes']:
+            to_screen(note)
+
+    if not os.access(filename, os.W_OK):
+        to_screen(u'ERROR: no write permissions on %s' % filename)
+        return
+
+    # Py2EXE
+    if hasattr(sys, "frozen"):
+        exe = os.path.abspath(filename)
+        directory = os.path.dirname(exe)
+        if not os.access(directory, os.W_OK):
+            to_screen(u'ERROR: no write permissions on %s' % directory)
+            return
+
+        try:
+            urlh = compat_urllib_request.urlopen(version['exe'][0])
+            newcontent = urlh.read()
+            urlh.close()
+        except (IOError, OSError) as err:
+            if verbose: to_screen(compat_str(traceback.format_exc()))
+            to_screen(u'ERROR: unable to download latest version')
+            return
+
+        newcontent_hash = hashlib.sha256(newcontent).hexdigest()
+        if newcontent_hash != version['exe'][1]:
+            to_screen(u'ERROR: the downloaded file hash does not match. Aborting.')
+            return
+
+        try:
+            with open(exe + '.new', 'wb') as outf:
+                outf.write(newcontent)
+        except (IOError, OSError) as err:
+            if verbose: to_screen(compat_str(traceback.format_exc()))
+            to_screen(u'ERROR: unable to write the new version')
+            return
+
+        try:
+            bat = os.path.join(directory, 'youtube-dl-updater.bat')
+            b = open(bat, 'w')
+            b.write("""
+echo Updating youtube-dl...
+ping 127.0.0.1 -n 5 -w 1000 > NUL
+move /Y "%s.new" "%s"
+del "%s"
+            \n""" %(exe, exe, bat))
+            b.close()
+
+            os.startfile(bat)
+        except (IOError, OSError) as err:
+            if verbose: to_screen(compat_str(traceback.format_exc()))
+            to_screen(u'ERROR: unable to overwrite current version')
+            return
+
+    # Zip unix package
+    elif isinstance(globals().get('__loader__'), zipimporter):
+        try:
+            urlh = compat_urllib_request.urlopen(version['bin'][0])
+            newcontent = urlh.read()
+            urlh.close()
+        except (IOError, OSError) as err:
+            if verbose: to_screen(compat_str(traceback.format_exc()))
+            to_screen(u'ERROR: unable to download latest version')
+            return
+
+        newcontent_hash = hashlib.sha256(newcontent).hexdigest()
+        if newcontent_hash != version['bin'][1]:
+            to_screen(u'ERROR: the downloaded file hash does not match. Aborting.')
+            return
+
+        try:
+            with open(filename, 'wb') as outf:
+                outf.write(newcontent)
+        except (IOError, OSError) as err:
+            if verbose: to_screen(compat_str(traceback.format_exc()))
+            to_screen(u'ERROR: unable to overwrite current version')
+            return
+
+    to_screen(u'Updated youtube-dl. Restart youtube-dl to use the new version.')
--- a/youtube_dl/utils.py
+++ b/youtube_dl/utils.py
@ -2,363 +2,542 @@
 # -*- coding: utf-8 -*-

 import gzip
-import htmlentitydefs
-import HTMLParser
+import io
+import json
 import locale
 import os
 import re
 import sys
+import traceback
 import zlib
-import urllib2
 import email.utils
 import json

 try:
-	import cStringIO as StringIO
+    import urllib.request as compat_urllib_request
+except ImportError: # Python 2
+    import urllib2 as compat_urllib_request
+
+try:
+    import urllib.error as compat_urllib_error
+except ImportError: # Python 2
+    import urllib2 as compat_urllib_error
+
+try:
+    import urllib.parse as compat_urllib_parse
+except ImportError: # Python 2
+    import urllib as compat_urllib_parse
+
+try:
+    from urllib.parse import urlparse as compat_urllib_parse_urlparse
+except ImportError: # Python 2
+    from urlparse import urlparse as compat_urllib_parse_urlparse
+
+try:
+    import http.cookiejar as compat_cookiejar
+except ImportError: # Python 2
+    import cookielib as compat_cookiejar
+
+try:
+    import html.entities as compat_html_entities
+except ImportError: # Python 2
+    import htmlentitydefs as compat_html_entities
+
+try:
+    import html.parser as compat_html_parser
+except ImportError: # Python 2
+    import HTMLParser as compat_html_parser
+
+try:
+    import http.client as compat_http_client
+except ImportError: # Python 2
+    import httplib as compat_http_client
+
+try:
+    from subprocess import DEVNULL
+    compat_subprocess_get_DEVNULL = lambda: DEVNULL
 except ImportError:
-	import StringIO
+    compat_subprocess_get_DEVNULL = lambda: open(os.path.devnull, 'w')
+
+try:
+    from urllib.parse import parse_qs as compat_parse_qs
+except ImportError: # Python 2
+    # HACK: The following is the correct parse_qs implementation from cpython 3's stdlib.
+    # Python 2's version is apparently totally broken
+    def _unquote(string, encoding='utf-8', errors='replace'):
+        if string == '':
+            return string
+        res = string.split('%')
+        if len(res) == 1:
+            return string
+        if encoding is None:
+            encoding = 'utf-8'
+        if errors is None:
+            errors = 'replace'
+        # pct_sequence: contiguous sequence of percent-encoded bytes, decoded
+        pct_sequence = b''
+        string = res[0]
+        for item in res[1:]:
+            try:
+                if not item:
+                    raise ValueError
+                pct_sequence += item[:2].decode('hex')
+                rest = item[2:]
+                if not rest:
+                    # This segment was just a single percent-encoded character.
+                    # May be part of a sequence of code units, so delay decoding.
+                    # (Stored in pct_sequence).
+                    continue
+            except ValueError:
+                rest = '%' + item
+            # Encountered non-percent-encoded characters. Flush the current
+            # pct_sequence.
+            string += pct_sequence.decode(encoding, errors) + rest
+            pct_sequence = b''
+        if pct_sequence:
+            # Flush the final pct_sequence
+            string += pct_sequence.decode(encoding, errors)
+        return string
+
+    def _parse_qsl(qs, keep_blank_values=False, strict_parsing=False,
+                encoding='utf-8', errors='replace'):
+        qs, _coerce_result = qs, unicode
+        pairs = [s2 for s1 in qs.split('&') for s2 in s1.split(';')]
+        r = []
+        for name_value in pairs:
+            if not name_value and not strict_parsing:
+                continue
+            nv = name_value.split('=', 1)
+            if len(nv) != 2:
+                if strict_parsing:
+                    raise ValueError("bad query field: %r" % (name_value,))
+                # Handle case of a control-name with no equal sign
+                if keep_blank_values:
+                    nv.append('')
+                else:
+                    continue
+            if len(nv[1]) or keep_blank_values:
+                name = nv[0].replace('+', ' ')
+                name = _unquote(name, encoding=encoding, errors=errors)
+                name = _coerce_result(name)
+                value = nv[1].replace('+', ' ')
+                value = _unquote(value, encoding=encoding, errors=errors)
+                value = _coerce_result(value)
+                r.append((name, value))
+        return r
+
+    def compat_parse_qs(qs, keep_blank_values=False, strict_parsing=False,
+                encoding='utf-8', errors='replace'):
+        parsed_result = {}
+        pairs = _parse_qsl(qs, keep_blank_values, strict_parsing,
+                        encoding=encoding, errors=errors)
+        for name, value in pairs:
+            if name in parsed_result:
+                parsed_result[name].append(value)
+            else:
+                parsed_result[name] = [value]
+        return parsed_result
+
+try:
+    compat_str = unicode # Python 2
+except NameError:
+    compat_str = str
+
+try:
+    compat_chr = unichr # Python 2
+except NameError:
+    compat_chr = chr

 std_headers = {
-	'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64; rv:10.0) Gecko/20100101 Firefox/10.0',
-	'Accept-Charset': 'ISO-8859-1,utf-8;q=0.7,*;q=0.7',
-	'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
-	'Accept-Encoding': 'gzip, deflate',
-	'Accept-Language': 'en-us,en;q=0.5',
+    'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64; rv:10.0) Gecko/20100101 Firefox/10.0',
+    'Accept-Charset': 'ISO-8859-1,utf-8;q=0.7,*;q=0.7',
+    'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
+    'Accept-Encoding': 'gzip, deflate',
+    'Accept-Language': 'en-us,en;q=0.5',
 }

 def preferredencoding():
-	"""Get preferred encoding.
+    """Get preferred encoding.

-	Returns the best encoding scheme for the system, based on
-	locale.getpreferredencoding() and some further tweaks.
-	"""
-	def yield_preferredencoding():
-		try:
-			pref = locale.getpreferredencoding()
-			u'TEST'.encode(pref)
-		except:
-			pref = 'UTF-8'
-		while True:
-			yield pref
-	return yield_preferredencoding().next()
+    Returns the best encoding scheme for the system, based on
+    locale.getpreferredencoding() and some further tweaks.
+    """
+    try:
+        pref = locale.getpreferredencoding()
+        u'TEST'.encode(pref)
+    except:
+        pref = 'UTF-8'

+    return pref
+
+if sys.version_info < (3,0):
+    def compat_print(s):
+        print(s.encode(preferredencoding(), 'xmlcharrefreplace'))
+else:
+    def compat_print(s):
+        assert type(s) == type(u'')
+        print(s)
+
+# In Python 2.x, json.dump expects a bytestream.
+# In Python 3.x, it writes to a character stream
+if sys.version_info < (3,0):
+    def write_json_file(obj, fn):
+        with open(fn, 'wb') as f:
+            json.dump(obj, f)
+else:
+    def write_json_file(obj, fn):
+        with open(fn, 'w', encoding='utf-8') as f:
+            json.dump(obj, f)

 def htmlentity_transform(matchobj):
-	"""Transforms an HTML entity to a Unicode character.
+    """Transforms an HTML entity to a character.

-	This function receives a match object and is intended to be used with
-	the re.sub() function.
-	"""
-	entity = matchobj.group(1)
+    This function receives a match object and is intended to be used with
+    the re.sub() function.
+    """
+    entity = matchobj.group(1)

-	# Known non-numeric HTML entity
-	if entity in htmlentitydefs.name2codepoint:
-		return unichr(htmlentitydefs.name2codepoint[entity])
+    # Known non-numeric HTML entity
+    if entity in compat_html_entities.name2codepoint:
+        return compat_chr(compat_html_entities.name2codepoint[entity])

-	# Unicode character
-	mobj = re.match(ur'(?u)#(x?\d+)', entity)
-	if mobj is not None:
-		numstr = mobj.group(1)
-		if numstr.startswith(u'x'):
-			base = 16
-			numstr = u'0%s' % numstr
-		else:
-			base = 10
-		return unichr(long(numstr, base))
+    mobj = re.match(u'(?u)#(x?\\d+)', entity)
+    if mobj is not None:
+        numstr = mobj.group(1)
+        if numstr.startswith(u'x'):
+            base = 16
+            numstr = u'0%s' % numstr
+        else:
+            base = 10
+        return compat_chr(int(numstr, base))

-	# Unknown entity in name, return its literal representation
-	return (u'&%s;' % entity)
+    # Unknown entity in name, return its literal representation
+    return (u'&%s;' % entity)

-HTMLParser.locatestarttagend = re.compile(r"""<[a-zA-Z][-.a-zA-Z0-9:_]*(?:\s+(?:(?<=['"\s])[^\s/>][^\s/=>]*(?:\s*=+\s*(?:'[^']*'|"[^"]*"|(?!['"])[^>\s]*))?\s*)*)?\s*""", re.VERBOSE) # backport bugfix
-class IDParser(HTMLParser.HTMLParser):
-	"""Modified HTMLParser that isolates a tag with the specified id"""
-	def __init__(self, id):
-		self.id = id
-		self.result = None
-		self.started = False
-		self.depth = {}
-		self.html = None
-		self.watch_startpos = False
-		self.error_count = 0
-		HTMLParser.HTMLParser.__init__(self)
+compat_html_parser.locatestarttagend = re.compile(r"""<[a-zA-Z][-.a-zA-Z0-9:_]*(?:\s+(?:(?<=['"\s])[^\s/>][^\s/=>]*(?:\s*=+\s*(?:'[^']*'|"[^"]*"|(?!['"])[^>\s]*))?\s*)*)?\s*""", re.VERBOSE) # backport bugfix
+class AttrParser(compat_html_parser.HTMLParser):
+    """Modified HTMLParser that isolates a tag with the specified attribute"""
+    def __init__(self, attribute, value):
+        self.attribute = attribute
+        self.value = value
+        self.result = None
+        self.started = False
+        self.depth = {}
+        self.html = None
+        self.watch_startpos = False
+        self.error_count = 0
+        compat_html_parser.HTMLParser.__init__(self)

-	def error(self, message):
-		#print >> sys.stderr, self.getpos()
-		if self.error_count > 10 or self.started:
-			raise HTMLParser.HTMLParseError(message, self.getpos())
-		self.rawdata = '\n'.join(self.html.split('\n')[self.getpos()[0]:]) # skip one line
-		self.error_count += 1
-		self.goahead(1)
+    def error(self, message):
+        if self.error_count > 10 or self.started:
+            raise compat_html_parser.HTMLParseError(message, self.getpos())
+        self.rawdata = '\n'.join(self.html.split('\n')[self.getpos()[0]:]) # skip one line
+        self.error_count += 1
+        self.goahead(1)

-	def loads(self, html):
-		self.html = html
-		self.feed(html)
-		self.close()
+    def loads(self, html):
+        self.html = html
+        self.feed(html)
+        self.close()

-	def handle_starttag(self, tag, attrs):
-		attrs = dict(attrs)
-		if self.started:
-			self.find_startpos(None)
-		if 'id' in attrs and attrs['id'] == self.id:
-			self.result = [tag]
-			self.started = True
-			self.watch_startpos = True
-		if self.started:
-			if not tag in self.depth: self.depth[tag] = 0
-			self.depth[tag] += 1
+    def handle_starttag(self, tag, attrs):
+        attrs = dict(attrs)
+        if self.started:
+            self.find_startpos(None)
+        if self.attribute in attrs and attrs[self.attribute] == self.value:
+            self.result = [tag]
+            self.started = True
+            self.watch_startpos = True
+        if self.started:
+            if not tag in self.depth: self.depth[tag] = 0
+            self.depth[tag] += 1

-	def handle_endtag(self, tag):
-		if self.started:
-			if tag in self.depth: self.depth[tag] -= 1
-			if self.depth[self.result[0]] == 0:
-				self.started = False
-				self.result.append(self.getpos())
+    def handle_endtag(self, tag):
+        if self.started:
+            if tag in self.depth: self.depth[tag] -= 1
+            if self.depth[self.result[0]] == 0:
+                self.started = False
+                self.result.append(self.getpos())

-	def find_startpos(self, x):
-		"""Needed to put the start position of the result (self.result[1])
-		after the opening tag with the requested id"""
-		if self.watch_startpos:
-			self.watch_startpos = False
-			self.result.append(self.getpos())
-	handle_entityref = handle_charref = handle_data = handle_comment = \
-	handle_decl = handle_pi = unknown_decl = find_startpos
+    def find_startpos(self, x):
+        """Needed to put the start position of the result (self.result[1])
+        after the opening tag with the requested id"""
+        if self.watch_startpos:
+            self.watch_startpos = False
+            self.result.append(self.getpos())
+    handle_entityref = handle_charref = handle_data = handle_comment = \
+    handle_decl = handle_pi = unknown_decl = find_startpos

-	def get_result(self):
-		if self.result == None: return None
-		if len(self.result) != 3: return None
-		lines = self.html.split('\n')
-		lines = lines[self.result[1][0]-1:self.result[2][0]]
-		lines[0] = lines[0][self.result[1][1]:]
-		if len(lines) == 1:
-			lines[-1] = lines[-1][:self.result[2][1]-self.result[1][1]]
-		lines[-1] = lines[-1][:self.result[2][1]]
-		return '\n'.join(lines).strip()
+    def get_result(self):
+        if self.result is None:
+            return None
+        if len(self.result) != 3:
+            return None
+        lines = self.html.split('\n')
+        lines = lines[self.result[1][0]-1:self.result[2][0]]
+        lines[0] = lines[0][self.result[1][1]:]
+        if len(lines) == 1:
+            lines[-1] = lines[-1][:self.result[2][1]-self.result[1][1]]
+        lines[-1] = lines[-1][:self.result[2][1]]
+        return '\n'.join(lines).strip()

 def get_element_by_id(id, html):
-	"""Return the content of the tag with the specified id in the passed HTML document"""
-	parser = IDParser(id)
-	try:
-		parser.loads(html)
-	except HTMLParser.HTMLParseError:
-		pass
-	return parser.get_result()
+    """Return the content of the tag with the specified ID in the passed HTML document"""
+    return get_element_by_attribute("id", id, html)
+
+def get_element_by_attribute(attribute, value, html):
+    """Return the content of the tag with the specified attribute in the passed HTML document"""
+    parser = AttrParser(attribute, value)
+    try:
+        parser.loads(html)
+    except compat_html_parser.HTMLParseError:
+        pass
+    return parser.get_result()


 def clean_html(html):
-	"""Clean an HTML snippet into a readable string"""
-	# Newline vs <br />
-	html = html.replace('\n', ' ')
-	html = re.sub('\s*<\s*br\s*/?\s*>\s*', '\n', html)
-	# Strip html tags
-	html = re.sub('<.*?>', '', html)
-	# Replace html entities
-	html = unescapeHTML(html)
-	return html
+    """Clean an HTML snippet into a readable string"""
+    # Newline vs <br />
+    html = html.replace('\n', ' ')
+    html = re.sub(r'\s*<\s*br\s*/?\s*>\s*', '\n', html)
+    html = re.sub(r'<\s*/\s*p\s*>\s*<\s*p[^>]*>', '\n', html)
+    # Strip html tags
+    html = re.sub('<.*?>', '', html)
+    # Replace html entities
+    html = unescapeHTML(html)
+    return html


 def sanitize_open(filename, open_mode):
-	"""Try to open the given filename, and slightly tweak it if this fails.
+    """Try to open the given filename, and slightly tweak it if this fails.

-	Attempts to open the given filename. If this fails, it tries to change
-	the filename slightly, step by step, until it's either able to open it
-	or it fails and raises a final exception, like the standard open()
-	function.
+    Attempts to open the given filename. If this fails, it tries to change
+    the filename slightly, step by step, until it's either able to open it
+    or it fails and raises a final exception, like the standard open()
+    function.

-	It returns the tuple (stream, definitive_file_name).
-	"""
-	try:
-		if filename == u'-':
-			if sys.platform == 'win32':
-				import msvcrt
-				msvcrt.setmode(sys.stdout.fileno(), os.O_BINARY)
-			return (sys.stdout, filename)
-		stream = open(encodeFilename(filename), open_mode)
-		return (stream, filename)
-	except (IOError, OSError), err:
-		# In case of error, try to remove win32 forbidden chars
-		filename = re.sub(ur'[/<>:"\|\?\*]', u'#', filename)
+    It returns the tuple (stream, definitive_file_name).
+    """
+    try:
+        if filename == u'-':
+            if sys.platform == 'win32':
+                import msvcrt
+                msvcrt.setmode(sys.stdout.fileno(), os.O_BINARY)
+            return (sys.stdout, filename)
+        stream = open(encodeFilename(filename), open_mode)
+        return (stream, filename)
+    except (IOError, OSError) as err:
+        # In case of error, try to remove win32 forbidden chars
+        filename = re.sub(u'[/<>:"\\|\\\\?\\*]', u'#', filename)

-		# An exception here should be caught in the caller
-		stream = open(encodeFilename(filename), open_mode)
-		return (stream, filename)
+        # An exception here should be caught in the caller
+        stream = open(encodeFilename(filename), open_mode)
+        return (stream, filename)


 def timeconvert(timestr):
-	"""Convert RFC 2822 defined time string into system timestamp"""
-	timestamp = None
-	timetuple = email.utils.parsedate_tz(timestr)
-	if timetuple is not None:
-		timestamp = email.utils.mktime_tz(timetuple)
-	return timestamp
-	
-def sanitize_filename(s):
-	"""Sanitizes a string so it could be used as part of a filename."""
-	def replace_insane(char):
-		if char == '?' or ord(char) < 32 or ord(char) == 127:
-			return ''
-		elif char == '"':
-			return '\''
-		elif char == ':':
-			return ' -'
-		elif char in '\\/|*<>':
-			return '-'
-		return char
+    """Convert RFC 2822 defined time string into system timestamp"""
+    timestamp = None
+    timetuple = email.utils.parsedate_tz(timestr)
+    if timetuple is not None:
+        timestamp = email.utils.mktime_tz(timetuple)
+    return timestamp

-	result = u''.join(map(replace_insane, s))
-	while '--' in result:
-		result = result.replace('--', '-')
-	return result.strip('-')
+def sanitize_filename(s, restricted=False, is_id=False):
+    """Sanitizes a string so it could be used as part of a filename.
+    If restricted is set, use a stricter subset of allowed characters.
+    Set is_id if this is not an arbitrary string, but an ID that should be kept if possible
+    """
+    def replace_insane(char):
+        if char == '?' or ord(char) < 32 or ord(char) == 127:
+            return ''
+        elif char == '"':
+            return '' if restricted else '\''
+        elif char == ':':
+            return '_-' if restricted else ' -'
+        elif char in '\\/|*<>':
+            return '_'
+        if restricted and (char in '!&\'()[]{}$;`^,#' or char.isspace()):
+            return '_'
+        if restricted and ord(char) > 127:
+            return '_'
+        return char
+
+    result = u''.join(map(replace_insane, s))
+    if not is_id:
+        while '__' in result:
+            result = result.replace('__', '_')
+        result = result.strip('_')
+        # Common case of "Foreign band name - English song title"
+        if restricted and result.startswith('-_'):
+            result = result[2:]
+        if not result:
+            result = '_'
+    return result

 def orderedSet(iterable):
-	""" Remove all duplicates from the input iterable """
-	res = []
-	for el in iterable:
-		if el not in res:
-			res.append(el)
-	return res
+    """ Remove all duplicates from the input iterable """
+    res = []
+    for el in iterable:
+        if el not in res:
+            res.append(el)
+    return res

 def unescapeHTML(s):
-	"""
-	@param s a string (of type unicode)
-	"""
-	assert type(s) == type(u'')
+    """
+    @param s a string
+    """
+    assert type(s) == type(u'')

-	result = re.sub(ur'(?u)&(.+?);', htmlentity_transform, s)
-	return result
+    result = re.sub(u'(?u)&(.+?);', htmlentity_transform, s)
+    return result

 def encodeFilename(s):
-	"""
-	@param s The name of the file (of type unicode)
-	"""
+    """
+    @param s The name of the file
+    """

-	assert type(s) == type(u'')
+    assert type(s) == type(u'')
+
+    # Python 3 has a Unicode API
+    if sys.version_info >= (3, 0):
+        return s
+
+    if sys.platform == 'win32' and sys.getwindowsversion()[0] >= 5:
+        # Pass u'' directly to use Unicode APIs on Windows 2000 and up
+        # (Detecting Windows NT 4 is tricky because 'major >= 4' would
+        # match Windows 9x series as well. Besides, NT 4 is obsolete.)
+        return s
+    else:
+        return s.encode(sys.getfilesystemencoding(), 'ignore')
+
+
+class ExtractorError(Exception):
+    """Error during info extraction."""
+    def __init__(self, msg, tb=None):
+        """ tb, if given, is the original traceback (so that it can be printed out). """
+        super(ExtractorError, self).__init__(msg)
+        self.traceback = tb
+
+    def format_traceback(self):
+        if self.traceback is None:
+            return None
+        return u''.join(traceback.format_tb(self.traceback))

-	if sys.platform == 'win32' and sys.getwindowsversion()[0] >= 5:
-		# Pass u'' directly to use Unicode APIs on Windows 2000 and up
-		# (Detecting Windows NT 4 is tricky because 'major >= 4' would
-		# match Windows 9x series as well. Besides, NT 4 is obsolete.)
-		return s
-	else:
-		return s.encode(sys.getfilesystemencoding(), 'ignore')

 class DownloadError(Exception):
-	"""Download Error exception.
+    """Download Error exception.

-	This exception may be thrown by FileDownloader objects if they are not
-	configured to continue on errors. They will contain the appropriate
-	error message.
-	"""
-	pass
+    This exception may be thrown by FileDownloader objects if they are not
+    configured to continue on errors. They will contain the appropriate
+    error message.
+    """
+    pass


 class SameFileError(Exception):
-	"""Same File exception.
+    """Same File exception.

-	This exception will be thrown by FileDownloader objects if they detect
-	multiple files would have to be downloaded to the same file on disk.
-	"""
-	pass
+    This exception will be thrown by FileDownloader objects if they detect
+    multiple files would have to be downloaded to the same file on disk.
+    """
+    pass


 class PostProcessingError(Exception):
-	"""Post Processing exception.
+    """Post Processing exception.

-	This exception may be raised by PostProcessor's .run() method to
-	indicate an error in the postprocessing task.
-	"""
-	pass
+    This exception may be raised by PostProcessor's .run() method to
+    indicate an error in the postprocessing task.
+    """
+    pass

 class MaxDownloadsReached(Exception):
-	""" --max-downloads limit has been reached. """
-	pass
+    """ --max-downloads limit has been reached. """
+    pass


 class UnavailableVideoError(Exception):
-	"""Unavailable Format exception.
+    """Unavailable Format exception.

-	This exception will be thrown when a video is requested
-	in a format that is not available for that video.
-	"""
-	pass
+    This exception will be thrown when a video is requested
+    in a format that is not available for that video.
+    """
+    pass


 class ContentTooShortError(Exception):
-	"""Content Too Short exception.
+    """Content Too Short exception.

-	This exception may be raised by FileDownloader objects when a file they
-	download is too small for what the server announced first, indicating
-	the connection was probably interrupted.
-	"""
-	# Both in bytes
-	downloaded = None
-	expected = None
+    This exception may be raised by FileDownloader objects when a file they
+    download is too small for what the server announced first, indicating
+    the connection was probably interrupted.
+    """
+    # Both in bytes
+    downloaded = None
+    expected = None

-	def __init__(self, downloaded, expected):
-		self.downloaded = downloaded
-		self.expected = expected
+    def __init__(self, downloaded, expected):
+        self.downloaded = downloaded
+        self.expected = expected

+class YoutubeDLHandler(compat_urllib_request.HTTPHandler):
+    """Handler for HTTP requests and responses.

-class Trouble(Exception):
-	"""Trouble helper exception
-	
-	This is an exception to be handled with
-	FileDownloader.trouble
-	"""
+    This class, when installed with an OpenerDirector, automatically adds
+    the standard headers to every HTTP request and handles gzipped and
+    deflated responses from web servers. If compression is to be avoided in
+    a particular request, the original request in the program code only has
+    to include the HTTP header "Youtubedl-No-Compression", which will be
+    removed before making the real request.

-class YoutubeDLHandler(urllib2.HTTPHandler):
-	"""Handler for HTTP requests and responses.
+    Part of this code was copied from:

-	This class, when installed with an OpenerDirector, automatically adds
-	the standard headers to every HTTP request and handles gzipped and
-	deflated responses from web servers. If compression is to be avoided in
-	a particular request, the original request in the program code only has
-	to include the HTTP header "Youtubedl-No-Compression", which will be
-	removed before making the real request.
+    http://techknack.net/python-urllib2-handlers/

-	Part of this code was copied from:
+    Andrew Rowls, the author of that code, agreed to release it to the
+    public domain.
+    """

-	http://techknack.net/python-urllib2-handlers/
+    @staticmethod
+    def deflate(data):
+        try:
+            return zlib.decompress(data, -zlib.MAX_WBITS)
+        except zlib.error:
+            return zlib.decompress(data)

-	Andrew Rowls, the author of that code, agreed to release it to the
-	public domain.
-	"""
+    @staticmethod
+    def addinfourl_wrapper(stream, headers, url, code):
+        if hasattr(compat_urllib_request.addinfourl, 'getcode'):
+            return compat_urllib_request.addinfourl(stream, headers, url, code)
+        ret = compat_urllib_request.addinfourl(stream, headers, url)
+        ret.code = code
+        return ret

-	@staticmethod
-	def deflate(data):
-		try:
-			return zlib.decompress(data, -zlib.MAX_WBITS)
-		except zlib.error:
-			return zlib.decompress(data)
+    def http_request(self, req):
+        for h in std_headers:
+            if h in req.headers:
+                del req.headers[h]
+            req.add_header(h, std_headers[h])
+        if 'Youtubedl-no-compression' in req.headers:
+            if 'Accept-encoding' in req.headers:
+                del req.headers['Accept-encoding']
+            del req.headers['Youtubedl-no-compression']
+        return req

-	@staticmethod
-	def addinfourl_wrapper(stream, headers, url, code):
-		if hasattr(urllib2.addinfourl, 'getcode'):
-			return urllib2.addinfourl(stream, headers, url, code)
-		ret = urllib2.addinfourl(stream, headers, url)
-		ret.code = code
-		return ret
+    def http_response(self, req, resp):
+        old_resp = resp
+        # gzip
+        if resp.headers.get('Content-encoding', '') == 'gzip':
+            gz = gzip.GzipFile(fileobj=io.BytesIO(resp.read()), mode='r')
+            resp = self.addinfourl_wrapper(gz, old_resp.headers, old_resp.url, old_resp.code)
+            resp.msg = old_resp.msg
+        # deflate
+        if resp.headers.get('Content-encoding', '') == 'deflate':
+            gz = io.BytesIO(self.deflate(resp.read()))
+            resp = self.addinfourl_wrapper(gz, old_resp.headers, old_resp.url, old_resp.code)
+            resp.msg = old_resp.msg
+        return resp

-	def http_request(self, req):
-		for h in std_headers:
-			if h in req.headers:
-				del req.headers[h]
-			req.add_header(h, std_headers[h])
-		if 'Youtubedl-no-compression' in req.headers:
-			if 'Accept-encoding' in req.headers:
-				del req.headers['Accept-encoding']
-			del req.headers['Youtubedl-no-compression']
-		return req
-
-	def http_response(self, req, resp):
-		old_resp = resp
-		# gzip
-		if resp.headers.get('Content-encoding', '') == 'gzip':
-			gz = gzip.GzipFile(fileobj=StringIO.StringIO(resp.read()), mode='r')
-			resp = self.addinfourl_wrapper(gz, old_resp.headers, old_resp.url, old_resp.code)
-			resp.msg = old_resp.msg
-		# deflate
-		if resp.headers.get('Content-encoding', '') == 'deflate':
-			gz = StringIO.StringIO(self.deflate(resp.read()))
-			resp = self.addinfourl_wrapper(gz, old_resp.headers, old_resp.url, old_resp.code)
-			resp.msg = old_resp.msg
-		return resp
+    https_request = http_request
+    https_response = http_response
--- a/youtube_dl/version.py
+++ b/youtube_dl/version.py
@ -0,0 +1,2 @@
+
+__version__ = '2013.01.02'