http://gitunderground.i2p/archive/youtube-dl/src/commit/dcdb292fddc82ae11f4c0b647815a45c88a6b6d5/youtube_dl/extractor/porn91.py
_download_webpage ( 'http://91porn.com/view_video.php?viewkey= %s ' % video_id , video_id ) if '作为游客,你每天只可观看10个视频' in webpage : raise ExtractorError ( '91 Porn says: Daily limit 10 videos exceeded' , expected = True ) title = self . _search_regex ( r '<div id="viewvideo-title">([^<]+)</div>' , webpage , 'title' ) title = title . replace ( ' \n ' , '' ) # get real url file_id = self .