Update app.py

app.py

@@ -57,6 +57,7 @@ def homework01_solution2(K, X1, X2):
     results = pd.concat([results, tmp], ignore_index=True)
 
   results = results.sort_values(by='Rank of closest neighbor')
+  results['Distance to query data'] = results['Distance to query data'].round(3)
   results
   
   return train_data, results, predicted_label