Update fetchYoutubeSubtitle.py

fetchYoutubeSubtitle.py

@@ -61,7 +61,7 @@ def fetchYoutubeSubtitleUrls(video_id):
 
 async def find(subtitleList: List[Dict], args: Dict) -> Dict:
     key = list(args.keys())[0]
-    return next((item for item in subtitleList if item[key] == args[key]), None)
+    return next((item for item in subtitleList if item.get(key, None) == args[key]), None)
 
 async def fetchYoutubeSubtitle(videoId: str) -> Dict:
     subtitle_url = ""