old_contents: from __future__ import unicode_literals
  
  from .common import InfoExtractor
  
  
  class NhkVodIE(InfoExtractor):
      _VALID_URL = r'https?://www3\.nhk\.or\.jp/nhkworld/en/vod/(?P<id>.+?)\.html'
      _TEST = {
          # Videos available only for a limited period of time. Visit
          # http://www3.nhk.or.jp/nhkworld/en/vod/ for working samples.
          'url': 'http://www3.nhk.or.jp/nhkworld/en/vod/tokyofashion/20160815.html',
          'info_dict': {
              'id': 'A1bnNiNTE6nY3jLllS-BIISfcC_PpvF5',
              'ext': 'flv',
              'title': 'TOKYO FASHION EXPRESS - The Kimono as Global Fashion',
              'description': 'md5:db338ee6ce8204f415b754782f819824',
              'series': 'TOKYO FASHION EXPRESS',
              'episode': 'The Kimono as Global Fashion',
          },
          'skip': 'Videos available only for a limited period of time',
      }
  
      def _real_extract(self, url):
          video_id = self._match_id(url)
  
          webpage = self._download_webpage(url, video_id)
  
          embed_code = self._search_regex(
              r'nw_vod_ooplayer\([^,]+,\s*(["\'])(?P<id>(?:(?!\1).)+)\1',
              webpage, 'ooyala embed code', group='id')
  
          title = self._search_regex(
              r'<div[^>]+class=["\']episode-detail["\']>\s*<h\d+>([^<]+)',
              webpage, 'title', default=None)
          description = self._html_search_regex(
              r'(?s)<p[^>]+class=["\']description["\'][^>]*>(.+?)</p>',
              webpage, 'description', default=None)
          series = self._search_regex(
              r'<h2[^>]+class=["\']detail-top-player-title[^>]+><a[^>]+>([^<]+)',
              webpage, 'series', default=None)
  
          return {
              '_type': 'url_transparent',
              'ie_key': 'Ooyala',
              'url': 'ooyala:%s' % embed_code,
              'title': '%s - %s' % (series, title) if series and title else title,
              'description': description,
              'series': series,
              'episode': title,
          }
  
new_contents: from __future__ import unicode_literals
  
  from .common import InfoExtractor
  from ..utils import ExtractorError
  
  
  class NhkVodIE(InfoExtractor):
      _VALID_URL = r'https?://www3\.nhk\.or\.jp/nhkworld/en/vod/(?P<id>[^/]+/[^/?#&]+)'
      _TEST = {
          # Videos available only for a limited period of time. Visit
          # http://www3.nhk.or.jp/nhkworld/en/vod/ for working samples.
          'url': 'http://www3.nhk.or.jp/nhkworld/en/vod/tokyofashion/20160815',
          'info_dict': {
              'id': 'A1bnNiNTE6nY3jLllS-BIISfcC_PpvF5',
              'ext': 'flv',
              'title': 'TOKYO FASHION EXPRESS - The Kimono as Global Fashion',
              'description': 'md5:db338ee6ce8204f415b754782f819824',
              'series': 'TOKYO FASHION EXPRESS',
              'episode': 'The Kimono as Global Fashion',
          },
          'skip': 'Videos available only for a limited period of time',
      }
      _API_URL = 'http://api.nhk.or.jp/nhkworld/vodesdlist/v1/all/all/all.json?apikey=EJfK8jdS57GqlupFgAfAAwr573q01y6k'
  
      def _real_extract(self, url):
          video_id = self._match_id(url)
  
          data = self._download_json(self._API_URL, video_id)
  
          try:
              episode = next(
                  e for e in data['data']['episodes']
                  if e.get('url') and video_id in e['url'])
          except StopIteration:
              raise ExtractorError('Unable to find episode')
  
          embed_code = episode['vod_id']
  
          title = episode.get('sub_title_clean') or episode['sub_title']
          description = episode.get('description_clean') or episode.get('description')
          series = episode.get('title_clean') or episode.get('title')
  
          return {
              '_type': 'url_transparent',
              'ie_key': 'Ooyala',
              'url': 'ooyala:%s' % embed_code,
              'title': '%s - %s' % (series, title) if series and title else title,
              'description': description,
              'series': series,
              'episode': title,
          }
  
subject: Fix extraction (Closes #10633)