python连接mysql

1、离线安装pymysql

下载pychar
官网：[https://pypi.org/project/PyMySQL/](https://pypi.org/project/PyMySQL/)

PyMySQL-0.9.3.tar.gz

安装：
pip3 install PyMySQL-0.9.3.tar.gz

2、pycharm更新包

重新设置项目的interpreter，设置为python的安装目录即可

3、测试源码

import pymysql

conn = pymysql.Connect(
    host='127.0.0.1',
    port=3306,
    user='root',
    password='111111',
    database='1111',
    charset='utf8'
)

cursor = conn.cursor()
sql = 'select * from com_version'
cursor.execute(sql)
ret = cursor.fetchone()
cursor.close()
conn.close()
print(ret)