def _real_extract(self, url):
        m = re.match(self._VALID_URL, url)
        fileID = m.group('fileID')
        if fileID:
            videourl = url
            playlist_id = fileID
        else:
            gameID = m.group('gameID')
            playlist_id = gameID
            videourl = self._VIDEO_PAGE_TEMPLATE % playlist_id
        webpage = self._download_webpage(videourl, playlist_id)

        if re.search('<h2>Please enter your birth date to continue:</h2>', webpage) == None:
            videourl = self._AGECHECK_TEMPLATE % playlist_id
            self.report_age_confirmation()
            webpage = self._download_webpage(videourl, playlist_id)

        if fileID:
            playlist_title = self._html_search_regex(
                r'<div class="workshopItemTitle">(.+)</div>', webpage, 'title')
            mweb = re.finditer(r'''(?x)
                'movie_(?P<videoID>[0-9]+)':\s*\{\s*
                YOUTUBE_VIDEO_ID:\s*"(?P<youtube_id>[^"]+)",
                ''', webpage)
            videos = [{
                '_type': 'url',
                'url': vid.group('youtube_id'),
                'ie_key': 'Youtube',
            } for vid in mweb]
        else:
            playlist_title = self._html_search_regex(
                r'<h2 class="pageheader">(.*?)</h2>', webpage, 'game title')

            mweb = re.finditer(r'''(?x)
                'movie_(?P<videoID>[0-9]+)':\s*\{\s*
                FILENAME:\s*"(?P<videoURL>[\w:/\.\?=]+)"
                (,\s*MOVIE_NAME:\s*\"(?P<videoName>[\w:/\.\?=\+-]+)\")?\s*\},
                ''', webpage)
            titles = re.finditer(
                r'<span class="title">(?P<videoName>.+?)</span>', webpage)
            thumbs = re.finditer(
                r'<img class="movie_thumb" src="(?P<thumbnail>.+?)">', webpage)
            videos = []

            for vid, vtitle, thumb in zip(mweb, titles, thumbs):
                video_id = vid.group('videoID')
                title = vtitle.group('videoName')
                video_url = vid.group('videoURL')
                video_thumb = thumb.group('thumbnail')
                if not video_url:
                    raise ExtractorError('Cannot find video url for %s' % video_id)
                videos.append({
                    'id': video_id,
                    'url': video_url,
                    'ext': 'flv',
                    'title': unescapeHTML(title),
                    'thumbnail': video_thumb
                })
        if not videos:
            raise ExtractorError('Could not find any videos')

        return self.playlist_result(videos, playlist_id, playlist_title)
dataset/ETHPy150Open yasoob/youtube-dl-GUI/youtube_dl/extractor/steam.py/SteamIE._real_extract/operator `is not` -> `==`