Update app.py

app.py

@@ -407,7 +407,8 @@ def create_zip_of_files(file_paths):
 # Access local files
 def get_gradio_file_url(local_path):
     relative_path = os.path.relpath(local_path, os.getcwd())
-    return f"/gradio_api/file={relative_path}"
+    final_path = f"/gradio_api/file={relative_path}"
+    return final_path
 
 # Async generate lecture materials and audio
 async def on_generate(api_service, api_key, serpapi_key, title, lecture_content_description, lecture_type, lecture_style, speaker_audio, num_slides):