Update app.py

app.py

@@ -56,7 +56,7 @@ def chat():
             sec = (end - start)
             result_list = str(datetime.timedelta(seconds=sec)).split(".")
             print("응답 시간 : " + result_list[0] +"\nx:"+ arr[0] +"\nid:"+ arr[1] +"\ncdata:" + arr[2] +"\nresult:"+ result + "\ncollback_url : " + arr[3])
-            return result
+            
 
 th_a = Thread(target = chat)
 th_a.daemon = True