text: # coding: utf-8
  from __future__ import unicode_literals
  
  import re
  
  from .common import InfoExtractor
  from ..utils import (
      js_to_json,
      determine_ext,
  )
  
  
  class BpbIE(InfoExtractor):
      IE_DESC = 'Bundeszentrale für politische Bildung'
      _VALID_URL = r'https?://(?:www\.)?bpb\.de/mediathek/(?P<id>[0-9]+)/'
  
      _TEST = {
          'url': 'http://www.bpb.de/mediathek/297/joachim-gauck-zu-1989-und-die-erinnerung-an-die-ddr',
          # md5 fails in Python 2.6 due to buggy server response and wrong handling of urllib2
          'md5': 'c4f84c8a8044ca9ff68bb8441d300b3f',
          'info_dict': {
              'id': '297',
              'ext': 'mp4',
              'title': 'Joachim Gauck zu 1989 und die Erinnerung an die DDR',
              'description': 'Joachim Gauck, erster Beauftragter für die Stasi-Unterlagen, spricht auf dem Geschichtsforum über die friedliche Revolution 1989 und eine "gewisse Traurigkeit" im Umgang mit der DDR-Vergangenheit.'
          }
      }
  
      def _real_extract(self, url):
          video_id = self._match_id(url)
          webpage = self._download_webpage(url, video_id)
  
          title = self._html_search_regex(
              r'<h2 class="white">(.*?)</h2>', webpage, 'title')
          video_info_dicts = re.findall(
              r"({\s*src\s*:\s*'https?://film\.bpb\.de/[^}]+})", webpage)
  
          formats = []
          for video_info in video_info_dicts:
              video_info = self._parse_json(
                  video_info, video_id, transform_source=js_to_json, fatal=False)
              if not video_info:
                  continue
              video_url = video_info.get('src')
              if not video_url:
                  continue
              quality = 'high' if '_high' in video_url else 'low'
              formats.append({
                  'url': video_url,
                  'preference': 10 if quality == 'high' else 0,
                  'format_note': quality,
                  'format_id': '%s-%s' % (quality, determine_ext(video_url)),
              })
  
          self._sort_formats(formats)
  
          return {
              'id': video_id,
              'formats': formats,
              'title': title,
              'description': self._og_search_description(webpage),
          }
  