check if dir exists before searching

Author: Redbot

src/redfetch/processes.py

@@ -20,6 +20,8 @@ def force_remote_unload() -> None:
 
 def _normalized_executables(folder_path: str) -> List[str]:
     folder = os.path.normpath(os.path.abspath(folder_path))
+    if not os.path.isdir(folder):
+        return []
     return [
         os.path.normcase(os.path.join(folder, entry))
         for entry in os.listdir(folder)