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

Code before:
    str_or_none,
    unified_strdate,
    url_or_none,
    urljoin,
)
from ..utils.traversal import traverse_obj


class LaracastsBaseIE(InfoExtractor):
    def _get_prop_data(self, url, display_id):
        webpage = self._download_webpage(url, display_id)
        return traverse_obj(
            get_element_html_by_id('app', webpage), ({extract_attributes}, 'data-page', {json.loads}, 'props'))

    def _parse_episode(self, episode):
        if not episode.get('vimeoId'):
            self.raise_login_required('This video is only available for subscribers.')
        return self.url_result(
            VimeoIE._smuggle_referrer(f'https://player.vimeo.com/video/{episode["vimeoId"]}', 'https://laracasts.com/'),
            VimeoIE, url_transparent=True,
            **traverse_obj(episode, {
                'id': ('id', {int}, {str_or_none}),
                'webpage_url': ('path', {lambda x: urljoin('https://laracasts.com', x)}),
                'title': ('title', {clean_html}),
                'season_number': ('chapter', {int}),
                'episode_number': ('position', {int}),
                'description': ('body', {clean_html}),
                'thumbnail': ('largeThumbnail', {url_or_none}),
                'duration': ('length', {int_or_none}),
                'date': ('dateSegments', 'published', {unified_strdate}),
            }))


class LaracastsIE(LaracastsBaseIE):
    IE_NAME = 'laracasts'
    _VALID_URL = r'https?://(?:www\.)?laracasts\.com/series/(?P<id>[\w\d-]+/episodes/[0-9]+)/?(?:[?#]|$)'
    _TESTS = [{
        'url': 'https://laracasts.com/series/30-days-to-learn-laravel-11/episodes/1',
        'md5': 'c8f5e7b02ad0e438ef9280a08c8493dc',
        'info_dict': {
            'id': '922040563',
            'title': 'Hello, Laravel',
            'ext': 'mp4',
            'duration': 519,
            'date': '20240312',
            'thumbnail': 'https://laracasts.s3.amazonaws.com/videos/thumbnails/youtube/30-days-to-learn-laravel-11-1.png',
            'description': 'md5:ddd658bb241975871d236555657e1dd1',
            'season_number': 1,
            'season': 'Season 1',
            'episode_number': 1,
            'episode': 'Episode 1',

Review comment (suggestion):
```suggestion
                'season_number': ('chapter', {int_or_none}),
                'episode_number': ('position', {int_or_none}),
```

Code after:
    str_or_none,
    unified_strdate,
    url_or_none,
    urljoin,
)
from ..utils.traversal import traverse_obj


class LaracastsBaseIE(InfoExtractor):
    def _get_prop_data(self, url, display_id):
        webpage = self._download_webpage(url, display_id)
        return traverse_obj(
            get_element_html_by_id('app', webpage),
            ({extract_attributes}, 'data-page', {json.loads}, 'props'))

    def _parse_episode(self, episode):
        if not traverse_obj(episode, 'vimeoId'):
            self.raise_login_required('This video is only available for subscribers.')
        return self.url_result(
            VimeoIE._smuggle_referrer(
                f'https://player.vimeo.com/video/{episode["vimeoId"]}', 'https://laracasts.com/'),
            VimeoIE, url_transparent=True,
            **traverse_obj(episode, {
                'id': ('id', {int}, {str_or_none}),
                'webpage_url': ('path', {lambda x: urljoin('https://laracasts.com', x)}),
                'title': ('title', {clean_html}),
                'season_number': ('chapter', {int_or_none}),
                'episode_number': ('position', {int_or_none}),
                'description': ('body', {clean_html}),
                'thumbnail': ('largeThumbnail', {url_or_none}),
                'duration': ('length', {int_or_none}),
                'date': ('dateSegments', 'published', {unified_strdate}),
            }))


class LaracastsIE(LaracastsBaseIE):
    IE_NAME = 'laracasts'
    _VALID_URL = r'https?://(?:www\.)?laracasts\.com/series/(?P<id>[\w-]+/episodes/\d+)/?(?:[?#]|$)'
    _TESTS = [{
        'url': 'https://laracasts.com/series/30-days-to-learn-laravel-11/episodes/1',
        'md5': 'c8f5e7b02ad0e438ef9280a08c8493dc',
        'info_dict': {
            'id': '922040563',
            'title': 'Hello, Laravel',
            'ext': 'mp4',
            'duration': 519,
            'date': '20240312',
            'thumbnail': 'https://laracasts.s3.amazonaws.com/videos/thumbnails/youtube/30-days-to-learn-laravel-11-1.png',
            'description': 'md5:ddd658bb241975871d236555657e1dd1',
            'season_number': 1,
            'season': 'Season 1',