PyMySQL 无法连接到本地主机上的 MySQL
我正在尝试使用 PyMySQL 连接到本地主机上的 MySQL:
I'm trying to connect to MySQL on localhost using PyMySQL:
import pymysql
conn = pymysql.connect(db='base', user='root', passwd='pwd', host='localhost')
但是(在 Python 2.7 和 Python 3.2 上)我收到错误:
but (both on Python 2.7 and Python 3.2) I get the error:
socket.error: [Errno 111] 连接被拒绝
socket.error: [Errno 111] Connection refused
pymysql.err.OperationalError: (2003, 无法连接到 'localhost' (111) 上的 MySQL 服务器")
pymysql.err.OperationalError: (2003, "Can't connect to MySQL server on 'localhost' (111)")
我确定 mysqld 正在运行,因为我可以使用 mysql 命令或 phpMyAdmin 进行连接.此外,我可以使用几乎相同的代码在 Python 2 上使用 MySQLdb 进行连接:
I'm sure mysqld is running because I can connect using mysql command or phpMyAdmin. Moreover, I can connect using MySQLdb on Python 2 with nearly the same code:
import MySQLdb
conn = MySQLdb.connect(db='base', user='root', passwd='pwd', host='localhost')
问题似乎出在 PyMySQL 端而不是 MySQL 上,但我不知道如何解决.
It seems that the problem is on PyMySQL side rather than MySQL but I have no idea how to solve it.
推荐答案
两个猜测:
运行
mysqladmin 变量 |grep socket
获取套接字所在的位置,然后尝试像这样建立连接:
Run
mysqladmin variables | grep socket
to get where the socket is located, and try setting up a connection like so:
pymysql.connect(db='base', user='root', passwd='pwd', unix_socket="/tmp/mysql.sock")
运行 mysqladmin 变量 |grep 端口
并验证端口是 3306.如果不是,您可以像这样手动设置端口:
Run mysqladmin variables | grep port
and verify that the port is 3306. If not, you can set the port manually like so:
pymysql.connect(db='base', user='root', passwd='pwd', host='localhost', port=XXXX)
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