[tvp] Modernize

youtube_dl/extractor/tvp.py

@@ -1,40 +1,35 @@
-import json
-import re
+from __future__ import unicode_literals
 
 from .common import InfoExtractor
 
 
 class TvpIE(InfoExtractor):
-    IE_NAME = u'tvp.pl'
+    IE_NAME = 'tvp.pl'
     _VALID_URL = r'https?://www\.tvp\.pl/.*?wideo/(?P<date>\d+)/(?P<id>\d+)'
 
     _TEST = {
-        u'url': u'http://www.tvp.pl/warszawa/magazyny/campusnews/wideo/31102013/12878238',
-        u'md5': u'148408967a6a468953c0a75cbdaf0d7a',
-        u'file': u'12878238.wmv',
-        u'info_dict': {
-            u'title': u'31.10.2013 - Odcinek 2',
-            u'description': u'31.10.2013 - Odcinek 2',
+        'url': 'http://www.tvp.pl/warszawa/magazyny/campusnews/wideo/31102013/12878238',
+        'md5': '148408967a6a468953c0a75cbdaf0d7a',
+        'info_dict': {
+            'id': '12878238',
+            'ext': 'wmv',
+            'title': '31.10.2013 - Odcinek 2',
+            'description': '31.10.2013 - Odcinek 2',
         },
-        u'skip': u'Download has to use same server IP as extraction. Therefore, a good (load-balancing) DNS resolver will make the download fail.'
+        'skip': 'Download has to use same server IP as extraction. Therefore, a good (load-balancing) DNS resolver will make the download fail.'
     }
 
     def _real_extract(self, url):
-        mobj = re.match(self._VALID_URL, url)
-        video_id = mobj.group('id')
+        video_id = self._match_id(url)
         webpage = self._download_webpage(url, video_id)
         json_url = 'http://www.tvp.pl/pub/stat/videofileinfo?video_id=%s' % video_id
-        json_params = self._download_webpage(
-            json_url, video_id, u"Downloading video metadata")
-
-        params = json.loads(json_params)
-        self.report_extraction(video_id)
+        params = self._download_json(
+            json_url, video_id, "Downloading video metadata")
         video_url = params['video_url']
 
-        title = self._og_search_title(webpage, fatal=True)
         return {
             'id': video_id,
-            'title': title,
+            'title': self._og_search_title(webpage),
             'ext': 'wmv',
             'url': video_url,
             'description': self._og_search_description(webpage),