conn = mysql.connector.connect(host="localhost", user="root", password="", database="Attendance") my_cursor = conn.cursor()

                            my_cursor.execute("select Name from student where Student_id=" str(id))
                            n=my_cursor.fetchone()
                            n=" ".join(n)

CodePudding user response：

Please check the value of n before joining if it is an iterable. Probably it’s None.