Postgresql 尝试将用户输入插入SQL表时出错

我遇到了一个问题，每当我尝试运行下面的代码并选择语句2以插入一个工具并输入一个随机工具名时，我都会收到错误消息：ProgrammingError（'inserttool'列不存在\n第1行：插入工具（工具名，租赁天数）值（@inserttool，'2'）

代码如下：

if Menu == "2":
  cursor = connection.cursor()
  InsertTool = raw_input("Please insert the tool that you want to add.\n")
  insert_tool = """insert into tools(tool_name, rental_days) values(@InsertTool, '2')"""  
  try:
     cursor.execute( insert_tool);
     connection.commit();
     print("Tool is succesfully inserted!")

  except Exception as e:
     connection.rollback();
     print("Exception Occured : ",e)
  connection.close(); 

试试这个

if Menu == "2":
  cursor = connection.cursor()
  InsertTool = raw_input("Please insert the tool that you want to add.\n")
  insert_tool = """insert into tools(tool_name, rental_days) values(%s, %s)"""
  val = (InsertTool, "2")
  try:
     cursor.execute(insert_tool, val);
     connection.commit();
     print("Tool is succesfully inserted!")

  except Exception as e:
     connection.rollback();
     print("Exception Occured : ",e)
  connection.close();

---

非常感谢，现在它工作得非常好！我感谢您的帮助！：）