连接到 MySQL 2013 (HY000) 时出错：在“读取初始通信数据包”时与 MySQL 服务器失去连接，系统错误：0

Question

我想将 python 连接到数据库，但出现此错误：

连接到 MySQL 2013 (HY000) 时出错：在“读取初始通信数据包”时与 MySQL 服务器失去连接，系统错误：0

代码是这样的：

import mysql.connector

from mysql.connector import Error

try:
    connection = mysql.connector.connect(host='172.31.20.456', # The server name or Ip address on which MySQL is running.
                                         port=5432,
                                         database='jru_ddbb', #The name of the database to which you want to connect and
                                         # perform the operations.
                                         # bind-address = 127.0.0.1
                                         user='root', # The username that you use to work with MySQL Server.
                                         # The default username for the MySQL database is a root.
                                         password='12345') # Password is given by the user at the time of installing
                                         # the MySQL server. If you are using root then you won’t need the password.
    if connection.is_connected():
        db_Info = connection.get_server_info()
        print("Connected to MySQL Server version ", db_Info)
        cursor = connection.cursor()
        cursor.execute("select database();")
        record = cursor.fetchone()
        print("You're connected to database: ", record)

except Error as e:
    print("Error while connecting to MySQL", e)
finally:
    if connection.is_connected():
        cursor.close()
        connection.close()
        print("MySQL connection is closed")

我怎样才能解决这个问题来连接python到数据库？