[utils] `traverse_obj`: Allow filtering by value

yt_dlp/extractor/funimation.py

@@ -333,7 +333,7 @@ class FunimationShowIE(FunimationBaseIE):
             'https://prod-api-funimationnow.dadcdigital.com/api/funimation/episodes/?limit=99999&title_id=%s'
             % show_info.get('id'), display_id)
 
-        vod_items = traverse_obj(items_info, ('items', ..., re.compile('(?i)mostRecent[AS]vod').match, 'item'))
+        vod_items = traverse_obj(items_info, ('items', ..., lambda k, _: re.match(r'(?i)mostRecent[AS]vod', k), 'item'))
 
         return {
             '_type': 'playlist',

yt_dlp/extractor/iqiyi.py

@@ -626,8 +626,8 @@ class IqIE(InfoExtractor):
                 note=f'Downloading format data for {self._BID_TAGS[bid]}', errnote='Unable to download format data',
                 fatal=False), 'data', expected_type=dict)
 
-            video_format = next((video_format for video_format in traverse_obj(
-                format_data, ('program', 'video', ...), expected_type=dict, default=[]) if str(video_format['bid']) == bid), {})
+            video_format = traverse_obj(format_data, ('program', 'video', lambda _, v: str(v['bid']) == bid),
+                                        expected_type=dict, default=[], get_all=False) or {}
             extracted_formats = []
             if video_format.get('m3u8Url'):
                 extracted_formats.extend(self._extract_m3u8_formats(

yt_dlp/utils.py

@@ -5152,8 +5152,8 @@ def traverse_obj(
     @param path_list        A list of paths which are checked one by one.
                             Each path is a list of keys where each key is a string,
                             a function, a tuple of strings/None or "...".
-                            When a fuction is given, it takes the key as argument and
-                            returns whether the key matches or not. When a tuple is given,
+                            When a fuction is given, it takes the key and value as arguments
+                            and returns whether the key matches or not. When a tuple is given,
                             all the keys given in the tuple are traversed, and
                             "..." traverses all the keys in the object
                             "None" returns the object without traversal
@@ -5198,7 +5198,7 @@ def traverse_obj(
                     obj = str(obj)
                 _current_depth += 1
                 depth = max(depth, _current_depth)
-                return [_traverse_obj(v, path[i + 1:], _current_depth) for k, v in obj if key(k)]
+                return [_traverse_obj(v, path[i + 1:], _current_depth) for k, v in obj if try_call(key, args=(k, v))]
             elif isinstance(obj, dict) and not (is_user_input and key == ':'):
                 obj = (obj.get(key) if casesense or (key in obj)
                        else next((v for k, v in obj.items() if _lower(k) == key), None))