[kankan] Simplify

youtube_dl/extractor/kankan.py

@@ -1,20 +1,22 @@
+from __future__ import unicode_literals
+
 import re
 import hashlib
 
 from .common import InfoExtractor
-from ..utils import determine_ext
 
 _md5 = lambda s: hashlib.md5(s.encode('utf-8')).hexdigest()
 
+
 class KankanIE(InfoExtractor):
     _VALID_URL = r'https?://(?:.*?\.)?kankan\.com/.+?/(?P<id>\d+)\.shtml'
     
     _TEST = {
-        u'url': u'http://yinyue.kankan.com/vod/48/48863.shtml',
-        u'file': u'48863.flv',
-        u'md5': u'29aca1e47ae68fc28804aca89f29507e',
-        u'info_dict': {
-            u'title': u'Ready To Go',
+        'url': 'http://yinyue.kankan.com/vod/48/48863.shtml',
+        'file': '48863.flv',
+        'md5': '29aca1e47ae68fc28804aca89f29507e',
+        'info_dict': {
+            'title': 'Ready To Go',
         },
     }
 
@@ -23,22 +25,23 @@ class KankanIE(InfoExtractor):
         video_id = mobj.group('id')
         webpage = self._download_webpage(url, video_id)
 
-        title = self._search_regex(r'(?:G_TITLE=|G_MOVIE_TITLE = )[\'"](.+?)[\'"]', webpage, u'video title')
+        title = self._search_regex(r'(?:G_TITLE=|G_MOVIE_TITLE = )[\'"](.+?)[\'"]', webpage, 'video title')
         surls = re.search(r'surls:\[\'.+?\'\]|lurl:\'.+?\.flv\'', webpage).group(0)
         gcids = re.findall(r"http://.+?/.+?/(.+?)/", surls)
         gcid = gcids[-1]
 
-        video_info_page = self._download_webpage('http://p2s.cl.kankan.com/getCdnresource_flv?gcid=%s' % gcid,
-                                                 video_id, u'Downloading video url info')
-        ip = self._search_regex(r'ip:"(.+?)"', video_info_page, u'video url ip')
-        path = self._search_regex(r'path:"(.+?)"', video_info_page, u'video url path')
-        param1 = self._search_regex(r'param1:(\d+)', video_info_page, u'param1')
-        param2 = self._search_regex(r'param2:(\d+)', video_info_page, u'param2')
+        info_url = 'http://p2s.cl.kankan.com/getCdnresource_flv?gcid=%s' % gcid
+        video_info_page = self._download_webpage(
+            info_url, video_id, 'Downloading video url info')
+        ip = self._search_regex(r'ip:"(.+?)"', video_info_page, 'video url ip')
+        path = self._search_regex(r'path:"(.+?)"', video_info_page, 'video url path')
+        param1 = self._search_regex(r'param1:(\d+)', video_info_page, 'param1')
+        param2 = self._search_regex(r'param2:(\d+)', video_info_page, 'param2')
         key = _md5('xl_mp43651' + param1 + param2)
         video_url = 'http://%s%s?key=%s&key1=%s' % (ip, path, key, param2)
 
-        return {'id': video_id,
-                'title': title,
-                'url': video_url,
-                'ext': determine_ext(video_url),
-                }
+        return {
+            'id': video_id,
+            'title': title,
+            'url': video_url,
+        }