traverse_obj rewrite

yt_dlp/extractor/playsuisse.py

@@ -260,20 +260,21 @@ class PlaySuisseIE(InfoExtractor):
             self._merge_subtitles(subs, target=subtitles)
 
         return {
-            'id': media_data['id'],
-            'title': media_data.get('name'),
-            'description': media_data.get('descriptionLong') or media_data.get('description'),
-            'genres': media_data.get('contentTypes'),
-            'creators': media_data.get('directors'),
-            'cast': media_data.get('mainCast'),
-            'location': media_data.get('productionCountries'),
-            'release_year': int_or_none(media_data.get('year')[:4]) if media_data.get('year') else None,
+            'id': traverse_obj(media_data, 'id'),
+            'title': traverse_obj(media_data, 'name'),
+            'description': traverse_obj(media_data, 'descriptionLong') or traverse_obj(media_data, 'description'),
+            'genres': traverse_obj(media_data, 'contentTypes'),
+            'creators': traverse_obj(media_data, 'directors'),
+            'cast': traverse_obj(media_data, 'mainCast'),
+            'location': traverse_obj(media_data, 'productionCountries'),
+            'release_year': int_or_none(traverse_obj(media_data, 'year', lambda x: x[:4])),
             'thumbnails': thumbnails,
-            'duration': int_or_none(media_data.get('duration')),
+            'duration': int_or_none(traverse_obj(media_data, 'duration')),
             'formats': formats,
             'subtitles': subtitles,
-            'series': media_data.get('seriesName'),
-            'season_number': int_or_none(media_data.get('seasonNumber')),
-            'episode': media_data.get('name') if media_data.get('episodeNumber') else None,
-            'episode_number': int_or_none(media_data.get('episodeNumber')),
+            'series': traverse_obj(media_data, 'seriesName'),
+            'season_number': int_or_none(traverse_obj(media_data, 'seasonNumber')),
+            'episode': traverse_obj(media_data, 'name') if traverse_obj(media_data, 'episodeNumber') else None,
+            'episode_number': int_or_none(traverse_obj(media_data, 'episodeNumber')),
         }
+