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

Code before:

        video = (self._download_json(
            self._API_BASE_URL + f'video/{video_id}', video_id,
            'Downloading additional video metadata', fatal=False) or {}).get('video') or {}
        show = video.get('show') or {}

        return {
            'id': video_id,
            'title': title,
            'description': strip_or_none(metas.get('summary') or video.get('summary')),
            'thumbnail': video_info.get('image') or player.get('image'),
            'formats': formats,
            'subtitles': self.extract_subtitles(sub_url, video_id),
            'episode': metas.get('subtitle') or video.get('name'),
            'episode_number': int_or_none(video.get('shortNumber')),
            'series': show.get('title'),
            'season_number': int_or_none(video.get('season')),
            'duration': int_or_none(video_info.get('duration') or video.get('duration')),
            'release_date': unified_strdate(video.get('releaseDate')),
            'average_rating': float_or_none(video.get('rating') or metas.get('rating')),
            'comment_count': int_or_none(video.get('commentsCount')),
        }


class ADNSeasonIE(ADNBaseIE):
    _VALID_URL = r'https?://(?:www\.)?(?:animation|anime)digitalnetwork\.com/((?P<lang>de)/)?video/(?P<id>[^/?#]+)/?(?:$|[#?])'
    _TESTS = [{
        'url': 'https://animationdigitalnetwork.com/video/tokyo-mew-mew-new',
        'playlist_count': 12,
        'info_dict': {
            'id': '911',
            'title': 'Tokyo Mew Mew New',
        },
        # 'skip': 'Only available in French end German speaking Europe',
    }]

    def _real_extract(self, url):
        lang, video_show_slug = self._match_valid_url(url).group('lang', 'id')
        if not lang:
            lang = 'fr'
        show = self._download_json(
            f'{self._API_BASE_URL}show/{video_show_slug}/', video_show_slug,
            'Downloading show JSON metadata', headers=self._HEADERS)['show']
        show_id = str(show['id'])
        episodes = self._download_json(
            f'{self._API_BASE_URL}video/show/{show_id}', video_show_slug,
            'Downloading episode list', headers={
                'X-Target-Distribution': lang,
                **self._HEADERS,
            }, query={
                'order': 'asc',

Review comment (suggestion):
same as above
```suggestion
    _VALID_URL = r'https?://(?:www\.)?(?:animation|anime)digitalnetwork\.com/(?:(?P<lang>de)/)?video/(?P<id>[^/?#]+)/?(?:$|[#?])'
```

Code after:
        video = (self._download_json(
            self._API_BASE_URL + f'video/{video_id}', video_id,
            'Downloading additional video metadata', fatal=False) or {}).get('video') or {}
        show = video.get('show') or {}

        return {
            'id': video_id,
            'title': title,
            'description': strip_or_none(metas.get('summary') or video.get('summary')),
            'thumbnail': video_info.get('image') or player.get('image'),
            'formats': formats,
            'subtitles': self.extract_subtitles(sub_url, video_id),
            'episode': metas.get('subtitle') or video.get('name'),
            'episode_number': int_or_none(video.get('shortNumber')),
            'series': show.get('title'),
            'season_number': int_or_none(video.get('season')),
            'duration': int_or_none(video_info.get('duration') or video.get('duration')),
            'release_date': unified_strdate(video.get('releaseDate')),
            'average_rating': float_or_none(video.get('rating') or metas.get('rating')),
            'comment_count': int_or_none(video.get('commentsCount')),
        }


class ADNSeasonIE(ADNBaseIE):
    _VALID_URL = r'https?://(?:www\.)?(?:animation|anime)digitalnetwork\.com/(?:(?P<lang>de)/)?video/(?P<id>[^/?#]+)/?(?:$|[#?])'
    _TESTS = [{
        'url': 'https://animationdigitalnetwork.com/video/tokyo-mew-mew-new',
        'playlist_count': 12,
        'info_dict': {
            'id': '911',
            'title': 'Tokyo Mew Mew New',
        },
        # 'skip': 'Only available in French end German speaking Europe',
    }]

    def _real_extract(self, url):
        lang, video_show_slug = self._match_valid_url(url).group('lang', 'id')
        show = self._download_json(
            f'{self._API_BASE_URL}show/{video_show_slug}/', video_show_slug,
            'Downloading show JSON metadata', headers=self._HEADERS)['show']
        show_id = str(show['id'])
        episodes = self._download_json(
            f'{self._API_BASE_URL}video/show/{show_id}', video_show_slug,
            'Downloading episode list', headers={
                'X-Target-Distribution': lang or 'fr',
                **self._HEADERS,
            }, query={
                'order': 'asc',
                'limit': '-1',
            })