def _real_extract(self, url):
        mobj = re.match(self._VALID_URL, url)
        user_id = mobj.group('user')

        urls = []
        webpage = self._download_webpage(url, user_id)
        urls.extend(re.findall(self._MEDIA_RE, webpage))

        pages = re.findall(r'/ajax-user/user-videos/%s\?page=([0-9]+)' % user_id, webpage)[:-1]
        for p in pages:
            more = 'http://www.teachertube.com/ajax-user/user-videos/%s?page=%s' % (user_id, p)
            webpage = self._download_webpage(more, user_id, 'Downloading page %s/%s' % (p, len(pages)))
            video_urls = re.findall(self._MEDIA_RE, webpage)
            urls.extend(video_urls)

        entries = [self.url_result(vurl, 'TeacherTube') for vurl in urls]
        return self.playlist_result(entries, user_id)
dataset/ETHPy150Open yasoob/youtube-dl-GUI/youtube_dl/extractor/teachertube.py/TeacherTubeUserIE._real_extract/original