Update app.py

app.py

@@ -112,4 +112,4 @@ if __name__ == "__main__":
         grade_btn = gr.Button("Grade", variant="primary")
         grade_btn.click(fn=grade, inputs=code, outputs=[grade_output, feedback_output], api_name="grade")
 
-    demo.launch(show_error=False, show_api=False))
+    demo.launch(show_error=False, show_api=False)