Update app.py

app.py

@@ -43,7 +43,7 @@ def sentence_builder(credit, age, tenure, balance, nb_prods, has_card, active, e
     }]
     df = pd.json_normalize(data)
     res = bool(pl.predict(df)[0])
-    return res == 0 ? 'User will stay' : 'User will exit'
+    return (res == 0) ? 'User will stay' : 'User will exit'
 
 iface = gr.Interface(
     sentence_builder,