官网下载python3.7.3：https://www.python.org/downloads/release/python-373/

配置系统环境变量目录：
E:\ldtools\python3.7.3\python.exe
E:\ldtools\python3.7.3\Scripts\pip.exe
python.exe 运行环境
pip.exe 包管理器

安装mysql环境包

1. 安装python 2.7的pip
curl https://bootstrap.pypa.io/pip/2.7/get-pip.py -o get-pip.py
python get-pip.py
pip install pymysql   
2. 安装python 3.7.3的pip
pip install pymysql==1.0.2

安装ide
配置ide中python运行环境window/preferences

测试脚本

#! /usr/bin/env python
# -*- coding:utf-8 -*-
# __author__ = "ldd"
import pymysql
conn = pymysql.connect(host='127.0.0.1', port=3306, user='root', passwd='123456', db='yy')
#游标设置为字典类型
cursor = conn.cursor(cursor=pymysql.cursors.DictCursor)
cursor.execute("SELECT * FROM shop_customer1")
# row_1 = cursor.fetchone() # 游标遍历一条一调显示
row_all = cursor.fetchall()   # 查询表中所有数据
print(row_all)                # 显示结果以json格式显示 
conn.commit()                 # 事务提交保存
cursor.close()                # 游标关闭  
conn.close()                  # 连接关闭