Update app.py

app.py

@@ -287,21 +287,15 @@ def server(input, output, session):
     #     # Get the string value and return it
     #     return buffer.getvalue()
 
-    # Reactive expression for the dataset
-    @reactive.calc
-    def dataset():
-        np.random.seed(123)
-        return pd.DataFrame({
-            'x': np.random.normal(0, 1, input.num_points()),
-            'y': np.random.normal(0, 1, input.num_points())
-        })
-
-    # Download handler for CSV
-    @session.download(filename="data.csv")
+
+    
+    @session.download()
     def download_data():
-        # Get the current dataset and save it to CSV
-        return dataset().to_csv(index=False)
-  
+        pass
+
+
+app = App(app_ui, server)
+
             
 
 app = App(app_ui, server)