Update app.py

app.py

@@ -176,15 +176,4 @@ elif menu == "Student Evaluation":
     if st.button("Send Feedback"):
         firebase_put(f"student_quizzes/{selected_id}/{choose_quiz}/Feedback", feedback)
         st.success("Feedback sent successfully!")
-        st.rerun()
-
-# Optional Gradio launcher (no-op if demo missing)
-if _name_ == "_main_":
-    try:
-        if "demo" in globals() and getattr(globals()["demo"], "launch", None):
-            try:
-                globals()["demo"].launch(server_name="0.0.0.0", server_port=7860, ssr_mode=False)
-            except Exception as e:
-                print(f"Gradio demo exists but failed to launch: {e}")
-    except Exception as e:
-        print(f"Error when attempting to launch Gradio demo: {e}")
+        st.rerun()