python - Error binding parameter 0 - probably unsupported type. How do I resolve the error?

Question

Method used to retrieve and return a list of the items in the database table login.

   def retrieve(self):
        if self.yearGroup is None:
            items.execute("SELECT Name_item FROM None_yeargroup_specific WHERE departmentName=?", (self.departmentName,))
            identity = items.fetchall()
            Database.commit()
            for i in identity:
                self.list.append(i[0])
            return self.list

Answer 1

等待大神答复