old_contents: from __future__ import unicode_literals
  
  from .common import InfoExtractor
  from ..utils import int_or_none
  
  
  class SprutoBaseIE(InfoExtractor):
      def _extract_spruto(self, spruto, video_id):
          playlist = spruto['playlist'][0]
          title = playlist['title']
          video_id = playlist.get('videoId') or video_id
          thumbnail = playlist.get('posterUrl') or playlist.get('thumbnailUrl')
          duration = int_or_none(playlist.get('duration'))
  
          formats = [{
              'url': f['url'],
          } for f in playlist['video']]
          self._sort_formats(formats)
  
          return {
              'id': video_id,
              'title': title,
              'thumbnail': thumbnail,
              'duration': duration,
              'formats': formats,
          }
  
  
  class VimpleIE(SprutoBaseIE):
      IE_DESC = 'Vimple - one-click video hosting'
      _VALID_URL = r'https?://(?:player\.vimple\.ru/iframe|vimple\.ru)/(?P<id>[\da-f-]{32,36})'
      _TESTS = [
          {
              'url': 'http://vimple.ru/c0f6b1687dcd4000a97ebe70068039cf',
              'md5': '2e750a330ed211d3fd41821c6ad9a279',
              'info_dict': {
                  'id': 'c0f6b168-7dcd-4000-a97e-be70068039cf',
                  'ext': 'mp4',
                  'title': 'Sunset',
                  'duration': 20,
                  'thumbnail': 're:https?://.*?\.jpg',
              },
          }, {
              'url': 'http://player.vimple.ru/iframe/52e1beec-1314-4a83-aeac-c61562eadbf9',
              'only_matching': True,
          }
      ]
  
      def _real_extract(self, url):
          video_id = self._match_id(url)
  
          webpage = self._download_webpage(
              'http://player.vimple.ru/iframe/%s' % video_id, video_id)
  
          spruto = self._parse_json(
              self._search_regex(
                  r'sprutoData\s*:\s*({.+?}),\r\n', webpage, 'spruto data'),
              video_id)
  
          return self._extract_spruto(spruto, video_id)
  
new_contents: from __future__ import unicode_literals
  
  from .common import InfoExtractor
  from ..utils import int_or_none
  
  
  class SprutoBaseIE(InfoExtractor):
      def _extract_spruto(self, spruto, video_id):
          playlist = spruto['playlist'][0]
          title = playlist['title']
          video_id = playlist.get('videoId') or video_id
          thumbnail = playlist.get('posterUrl') or playlist.get('thumbnailUrl')
          duration = int_or_none(playlist.get('duration'))
  
          formats = [{
              'url': f['url'],
          } for f in playlist['video']]
          self._sort_formats(formats)
  
          return {
              'id': video_id,
              'title': title,
              'thumbnail': thumbnail,
              'duration': duration,
              'formats': formats,
          }
  
  
  class VimpleIE(SprutoBaseIE):
      IE_DESC = 'Vimple - one-click video hosting'
      _VALID_URL = r'https?://(?:player\.vimple\.(?:ru|co)/iframe|vimple\.(?:ru|co))/(?P<id>[\da-f-]{32,36})'
      _TESTS = [{
          'url': 'http://vimple.ru/c0f6b1687dcd4000a97ebe70068039cf',
          'md5': '2e750a330ed211d3fd41821c6ad9a279',
          'info_dict': {
              'id': 'c0f6b168-7dcd-4000-a97e-be70068039cf',
              'ext': 'mp4',
              'title': 'Sunset',
              'duration': 20,
              'thumbnail': 're:https?://.*?\.jpg',
          },
      }, {
          'url': 'http://player.vimple.ru/iframe/52e1beec-1314-4a83-aeac-c61562eadbf9',
          'only_matching': True,
      }, {
          'url': 'http://vimple.co/04506a053f124483b8fb05ed73899f19',
          'only_matching': True,
      }]
  
      def _real_extract(self, url):
          video_id = self._match_id(url)
  
          webpage = self._download_webpage(
              'http://player.vimple.ru/iframe/%s' % video_id, video_id)
  
          spruto = self._parse_json(
              self._search_regex(
                  r'sprutoData\s*:\s*({.+?}),\r\n', webpage, 'spruto data'),
              video_id)
  
          return self._extract_spruto(spruto, video_id)
  
subject: Extend _VALID_URL (Closes #10547)