[sohu] Modernize

youtube_dl/extractor/sohu.py

@@ -1,4 +1,5 @@
 # encoding: utf-8
+from __future__ import unicode_literals
 
 import json
 import re
@@ -11,13 +12,14 @@ class SohuIE(InfoExtractor):
     _VALID_URL = r'https?://(?P<mytv>my\.)?tv\.sohu\.com/.+?/(?(mytv)|n)(?P<id>\d+)\.shtml.*?'
 
     _TEST = {
-        u'url': u'http://tv.sohu.com/20130724/n382479172.shtml#super',
-        u'file': u'382479172.mp4',
-        u'md5': u'bde8d9a6ffd82c63a1eefaef4eeefec7',
-        u'info_dict': {
-            u'title': u'MV：Far East Movement《The Illest》',
+        'url': 'http://tv.sohu.com/20130724/n382479172.shtml#super',
+        'md5': 'bde8d9a6ffd82c63a1eefaef4eeefec7',
+        'info_dict': {
+            'id': '382479172',
+            'ext': 'mp4',
+            'title': 'MV：Far East Movement《The Illest》',
         },
-        u'skip': u'Only available from China',
+        'skip': 'Only available from China',
     }
 
     def _real_extract(self, url):
@@ -26,7 +28,7 @@ class SohuIE(InfoExtractor):
             if mytv:
                 base_data_url = 'http://my.tv.sohu.com/play/videonew.do?vid='
             else:
-                base_data_url = u'http://hot.vrs.sohu.com/vrs_flash.action?vid='
+                base_data_url = 'http://hot.vrs.sohu.com/vrs_flash.action?vid='
             data_url = base_data_url + str(vid_id)
             data_json = self._download_webpage(
                 data_url, video_id,
@@ -39,11 +41,11 @@ class SohuIE(InfoExtractor):
 
         webpage = self._download_webpage(url, video_id)
         raw_title = self._html_search_regex(r'(?s)<title>(.+?)</title>',
-                                            webpage, u'video title')
+                                            webpage, 'video title')
         title = raw_title.partition('-')[0].strip()
 
         vid = self._html_search_regex(r'var vid ?= ?["\'](\d+)["\']', webpage,
-                                      u'video path')
+                                      'video path')
         data = _fetch_data(vid, mytv)
 
         QUALITIES = ('ori', 'super', 'high', 'nor')