Repository: yt-dlp/yt-dlp
File: yt_dlp/extractor/mxplayer.py (Python)

Code before:
class MxplayerShowIE(InfoExtractor):
    _VALID_URL = r'(?:https?://)(?:www\.)?mxplayer\.in/show/(?P<display_id>[-\w]+)-(?P<id>\w+)/?(?:$|[#?])'
    _TESTS = [{
        'url': 'https://www.mxplayer.in/show/watch-chakravartin-ashoka-samrat-series-online-a8f44e3cc0814b5601d17772cedf5417',
        'playlist_mincount': 440,
        'info_dict': {
            'id': 'a8f44e3cc0814b5601d17772cedf5417',
        }
    }]

    def _entries(self, show_id):
        show_url = "https://api.mxplay.com/v1/web/detail/tab/tvshowseasons?type=tv_show&id={}&device-density=2&platform=com.mxplay.desktop&content-languages=hi,en".format(
            show_id)
        episodes_url = "https://api.mxplay.com/v1/web/detail/tab/tvshowepisodes?type=season&id={}&device-density=1&platform=com.mxplay.desktop&content-languages=hi,en&{}"
        show_json = self._download_json(show_url, video_id=show_id, headers={'Referer': 'https://mxplayer.in'})
        page_num = 0
        for season in show_json.get('items') or []:
            season_id = try_get(season, lambda x: x['id'], compat_str)
            next_url = ''
            while next_url is not None:
                page_num += 1
                season_json = self._download_json(episodes_url.format(season_id, next_url),
                                                  video_id=season_id,
                                                  headers={'Referer': 'https://mxplayer.in'},
                                                  note='Downloading JSON metadata page %d' % page_num)
                next_url = season_json['next']
                for episode in season_json.get('items') or []:
                    video_id = episode['webUrl']
                    yield self.url_result(
                        'https://mxplayer.in%s' % video_id,
                        ie=MxplayerIE.ie_key(), video_id=video_id)

    def _real_extract(self, url):
        show_id = self._match_id(url)
        return self.playlist_result(self._entries(show_id), playlist_id=show_id)


Review comment (suggestion):
```suggestion
                next_url = season_json.get('next')
```

Code after:
class MxplayerShowIE(InfoExtractor):
    _VALID_URL = r'(?:https?://)(?:www\.)?mxplayer\.in/show/(?P<display_id>[-\w]+)-(?P<id>\w+)/?(?:$|[#?])'
    _TESTS = [{
        'url': 'https://www.mxplayer.in/show/watch-chakravartin-ashoka-samrat-series-online-a8f44e3cc0814b5601d17772cedf5417',
        'playlist_mincount': 440,
        'info_dict': {
            'id': 'a8f44e3cc0814b5601d17772cedf5417',
            'title': 'Watch Chakravartin Ashoka Samrat Series Online',
        }
    }]

    _API_SHOW_URL = "https://api.mxplay.com/v1/web/detail/tab/tvshowseasons?type=tv_show&id={}&device-density=2&platform=com.mxplay.desktop&content-languages=hi,en"
    _API_EPISODES_URL = "https://api.mxplay.com/v1/web/detail/tab/tvshowepisodes?type=season&id={}&device-density=1&platform=com.mxplay.desktop&content-languages=hi,en&{}"

    def _entries(self, show_id):
        show_json = self._download_json(
            self._API_SHOW_URL.format(show_id),
            video_id=show_id, headers={'Referer': 'https://mxplayer.in'})
        page_num = 0
        for season in show_json.get('items') or []:
            season_id = try_get(season, lambda x: x['id'], compat_str)
            next_url = ''
            while next_url is not None:
                page_num += 1
                season_json = self._download_json(
                    self._API_EPISODES_URL.format(season_id, next_url),
                    video_id=season_id,
                    headers={'Referer': 'https://mxplayer.in'},
                    note='Downloading JSON metadata page %d' % page_num)
                for episode in season_json.get('items') or []:
                    video_url = episode['webUrl']
                    yield self.url_result(
                        'https://mxplayer.in%s' % video_url,
                        ie=MxplayerIE.ie_key(), video_id=video_url.split('-')[-1])
                next_url = season_json.get('next')

    def _real_extract(self, url):
        display_id, show_id = re.match(self._VALID_URL, url).groups()
        return self.playlist_result(
            self._entries(show_id), playlist_id=show_id,
            playlist_title=display_id.replace('-', ' ').title())