fixed PEP8 whitespace issues

mostly vertical whitespace and mixed spaces and tabs

youtube-dl

@@ -47,6 +47,7 @@ std_headers = {
 
 simple_title_chars = string.ascii_letters.decode('ascii') + string.digits.decode('ascii')
 
+
 def preferredencoding():
 	"""Get preferred encoding.
 
@@ -63,6 +64,7 @@ def preferredencoding():
 			yield pref
 	return yield_preferredencoding().next()
 
+
 def htmlentity_transform(matchobj):
 	"""Transforms an HTML entity to a Unicode character.
 
@@ -89,11 +91,13 @@ def htmlentity_transform(matchobj):
 	# Unknown entity in name, return its literal representation
 	return (u'&%s;' % entity)
 
+
 def sanitize_title(utitle):
 	"""Sanitizes a video title so it could be used as part of a filename."""
 	utitle = re.sub(ur'(?u)&(.+?);', htmlentity_transform, utitle)
 	return utitle.replace(unicode(os.sep), u'%')
 
+
 def sanitize_open(filename, open_mode):
 	"""Try to open the given filename, and slightly tweak it if this fails.
 
@@ -120,6 +124,7 @@ def sanitize_open(filename, open_mode):
 		stream = open(filename, open_mode)
 		return (stream, filename)
 
+
 def timeconvert(timestr):
 	"""Convert RFC 2822 defined time string into system timestamp"""
 	timestamp = None
@@ -128,6 +133,7 @@ def timeconvert(timestr):
 		timestamp = email.utils.mktime_tz(timetuple)
 	return timestamp
 
+
 class DownloadError(Exception):
 	"""Download Error exception.
 
@@ -137,6 +143,7 @@ class DownloadError(Exception):
 	"""
 	pass
 
+
 class SameFileError(Exception):
 	"""Same File exception.
 
@@ -145,6 +152,7 @@ class SameFileError(Exception):
 	"""
 	pass
 
+
 class PostProcessingError(Exception):
 	"""Post Processing exception.
 
@@ -153,6 +161,7 @@ class PostProcessingError(Exception):
 	"""
 	pass
 
+
 class UnavailableVideoError(Exception):
 	"""Unavailable Format exception.
 
@@ -161,6 +170,7 @@ class UnavailableVideoError(Exception):
 	"""
 	pass
 
+
 class ContentTooShortError(Exception):
 	"""Content Too Short exception.
 
@@ -176,6 +186,7 @@ class ContentTooShortError(Exception):
 		self.downloaded = downloaded
 		self.expected = expected
 
+
 class YoutubeDLHandler(urllib2.HTTPHandler):
 	"""Handler for HTTP requests and responses.
 
@@ -234,6 +245,7 @@ class YoutubeDLHandler(urllib2.HTTPHandler):
 			resp.msg = old_resp.msg
 		return resp
 
+
 class FileDownloader(object):
 	"""File Downloader class.
 
@@ -784,6 +796,7 @@ class FileDownloader(object):
 
 		return True
 
+
 class InfoExtractor(object):
 	"""Information Extractor class.
 
@@ -855,6 +868,7 @@ class InfoExtractor(object):
 		"""Real extraction process. Redefine in subclasses."""
 		pass
 
+
 class YoutubeIE(InfoExtractor):
 	"""Information extractor for youtube.com."""
 
@@ -1371,6 +1385,7 @@ class DailymotionIE(InfoExtractor):
 		except UnavailableVideoError:
 			self._downloader.trouble(u'\nERROR: unable to download video')
 
+
 class GoogleIE(InfoExtractor):
 	"""Information extractor for video.google.com."""
 
@@ -1464,7 +1479,6 @@ class GoogleIE(InfoExtractor):
 		else:	# we need something to pass to process_info
 			video_thumbnail = ''
 
-
 		try:
 			# Process video information
 			self._downloader.process_info({
@@ -1664,7 +1678,8 @@ class YahooIE(InfoExtractor):
 			self._downloader.trouble(u'ERROR: unable to extract video description')
 			return
 		video_description = mobj.group(1).decode('utf-8')
-		if not video_description: video_description = 'No description available.'
+		if not video_description:
+			video_description = 'No description available.'
 
 		# Extract video height and width
 		mobj = re.search(r'<meta name="video_height" content="([0-9]+)" />', webpage)
@@ -1914,6 +1929,7 @@ class YoutubeSearchIE(InfoExtractor):
 
 			pagenum = pagenum + 1
 
+
 class GoogleSearchIE(InfoExtractor):
 	"""Information Extractor for Google Video search queries."""
 	_VALID_QUERY = r'gvsearch(\d+|all)?:[\s\S]+'
@@ -2005,6 +2021,7 @@ class GoogleSearchIE(InfoExtractor):
 
 			pagenum = pagenum + 1
 
+
 class YahooSearchIE(InfoExtractor):
 	"""Information Extractor for Yahoo! Video search queries."""
 	_VALID_QUERY = r'yvsearch(\d+|all)?:[\s\S]+'
@@ -2096,6 +2113,7 @@ class YahooSearchIE(InfoExtractor):
 
 			pagenum = pagenum + 1
 
+
 class YoutubePlaylistIE(InfoExtractor):
 	"""Information Extractor for YouTube playlists."""
 
@@ -2172,6 +2190,7 @@ class YoutubePlaylistIE(InfoExtractor):
 			self._youtube_ie.extract('http://www.youtube.com/watch?v=%s' % id)
 		return
 
+
 class YoutubeUserIE(InfoExtractor):
 	"""Information Extractor for YouTube users."""
 
@@ -2342,6 +2361,7 @@ class DepositFilesIE(InfoExtractor):
 		except UnavailableVideoError, err:
 			self._downloader.trouble(u'ERROR: unable to download file')
 
+
 class FacebookIE(InfoExtractor):
 	"""Information Extractor for Facebook"""
 
@@ -2565,6 +2585,7 @@ class FacebookIE(InfoExtractor):
 			except UnavailableVideoError, err:
 				self._downloader.trouble(u'\nERROR: unable to download video')
 
+
 class PostProcessor(object):
 	"""Post Processor class.
 
@@ -2611,6 +2632,7 @@ class PostProcessor(object):
 		"""
 		return information # by default, do nothing
 
+
 class FFmpegExtractAudioPP(PostProcessor):
 
 	def __init__(self, downloader=None, preferredcodec=None):