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

Code before:
from ..utils import ExtractorError, float_or_none, int_or_none, url_or_none, urlencode_postdata
from ..utils.traversal import traverse_obj


class IlPostExtractorIE(InfoExtractor):
    _VALID_URL = r'https?://(?:www\.)?ilpost\.it/episodes/(?P<id>[^/?]+).*'
    _TESTS = [{
        'url': 'https://www.ilpost.it/episodes/1-avis-akvasas-ka/',
        'md5': '43649f002d85e1c2f319bb478d479c40',
        'info_dict': {
            'id': '2972047',
            'ext': 'mp3',
            'display_id': '1-avis-akvasas-ka',
            'title': '1. Avis akvasas ka',
            'url': 'https://www.ilpost.it/wp-content/uploads/2023/12/28/1703781217-l-invasione-pt1-v6.mp3',
            'timestamp': 1703835014,
            'upload_date': '20231229',
            'duration': 2495.0,
            'availability': 'public',
            'series_id': '235598',
            'description': '',
        }
    }]

    def _real_extract(self, url):
        podcast_display_id = self._match_id(url)
        webpage = self._download_webpage(url, podcast_display_id)

        endpoint_metadata = self._search_json(
            r'var\s+ilpostpodcast\s*=', webpage, 'metadata', podcast_display_id)
        episode_id = endpoint_metadata['post_id']
        podcast_id = endpoint_metadata['podcast_id']
        podcast_metadata = self._download_json(
            endpoint_metadata['ajax_url'], podcast_display_id, data=urlencode_postdata({
                'action': 'checkpodcast',
                'cookie': endpoint_metadata['cookie'],
                'post_id': episode_id,
                'podcast_id': podcast_id,
            }))
        episode = traverse_obj(podcast_metadata, (
            'data', 'postcastList', lambda _, v: str(v['id']) == episode_id, {dict}), get_all=False)
        if not episode:
            raise ExtractorError('Episode could not be extracted')
        return {
            'id': episode_id,
            'display_id': podcast_display_id,
            'series_id': podcast_id,
            'vcodec': 'none',
            **traverse_obj(episode, {
                'title': ('title', {str}),
                'description': ('description', {str}),

Review comment (suggestion):
`display_id` is the convention, shorter, and more distinct from `podcast_id`
```suggestion
        display_id = self._match_id(url)
```

Code after:
from ..utils import (
    ExtractorError,
    float_or_none,
    int_or_none,
    url_or_none,
    urlencode_postdata,
)
from ..utils.traversal import traverse_obj


class IlPostIE(InfoExtractor):
    _VALID_URL = r'https?://(?:www\.)?ilpost\.it/episodes/(?P<id>[^/?#]+)'
    _TESTS = [{
        'url': 'https://www.ilpost.it/episodes/1-avis-akvasas-ka/',
        'md5': '43649f002d85e1c2f319bb478d479c40',
        'info_dict': {
            'id': '2972047',
            'ext': 'mp3',
            'display_id': '1-avis-akvasas-ka',
            'title': '1. Avis akvasas ka',
            'url': 'https://www.ilpost.it/wp-content/uploads/2023/12/28/1703781217-l-invasione-pt1-v6.mp3',
            'timestamp': 1703835014,
            'upload_date': '20231229',
            'duration': 2495.0,
            'availability': 'public',
            'series_id': '235598',
            'description': '',
        }
    }]

    def _real_extract(self, url):
        display_id = self._match_id(url)
        webpage = self._download_webpage(url, display_id)

        endpoint_metadata = self._search_json(
            r'var\s+ilpostpodcast\s*=', webpage, 'metadata', display_id)
        episode_id = endpoint_metadata['post_id']
        podcast_id = endpoint_metadata['podcast_id']
        podcast_metadata = self._download_json(
            endpoint_metadata['ajax_url'], display_id, data=urlencode_postdata({
                'action': 'checkpodcast',
                'cookie': endpoint_metadata['cookie'],
                'post_id': episode_id,
                'podcast_id': podcast_id,
            }))

        episode = traverse_obj(podcast_metadata, (
            'data', 'postcastList', lambda _, v: str(v['id']) == episode_id, {dict}), get_all=False)
        if not episode:
            raise ExtractorError('Episode could not be extracted')