一、安装cx_Oracle
pip install cx_Oracle二、安装instantclient
windows方式：
第一次使用需要注册即可下载资源
1.下载windows对应配置的即可，我这里下载的是instantclient_11_2
2.环境配置
import os
os.environ['NLS_LANG'] = 'SIMPLIFIED CHINESE_CHINA.UTF8'
os.environ['TNS_ADMIN'] = 'D:\program\instantclientx64_jb51\instantclient_11_2'
os.environ['Path'] = 'D:\program\instantclientx64_jb51\instantclient_11_2'linux方式：
https://www.oracle.com/technetwork/database/database-technologies/instant-client/down