Update app.py

app.py

@@ -207,7 +207,7 @@ def predict_inverse(hardness_original_target, ys_original_target, metals_to_use,
 
     print((result[columns[2:-3]], columns[-3], result.at[0, columns[0]], result.at[0, columns[1]], columns[-2], columns[-1]))
     print("_")
-    print(result[columns[2:-3])
+    print(result[columns[2:-3]])
     print("_")
     print(columns[-3])
     print("_")