Update app.py

app.py

@@ -66,11 +66,12 @@ def process_pdf_and_ask_question(pdf_file,question):
     return res["answer"]
 
 def gradio_interface(pdf,question):
-    
+    return process_pdf_and_ask_question(pdf,question)
 
-gr.interface(fn=process_pdf_and_ask_question,
+app=gr.interface(fn=gradio_interface,
                  inputs=[gr.File(file_count="single", type="filepath"), gr.Textbox(lines=2, placeholder="Ask a question...")],
                  outputs="text",
                  title="PDF Q&A",
                  description="Upload a PDF and ask questions about it.",
-            )launch()  
+            )
+app.launch()