• 下载oracle client

https://www.oracle.com/database/technologies/instant-client/macos-intel-x86-downloads.html

• 解压

mkdir -p /opt/oracle
unzip instantclient-basic-macos.x64-19.3.0.0.0dbru.zip

mkdir ~/lib
ln -s /opt/oracle/instantclient_19_3/libclntsh.dylib ~/lib/

• python 库

pip intall cx_Oracle

• python 测试

#  '用户名/密码@IP:端口号/SERVICE_NAME'

import cx_Oracle
conn = cx_Oracle.connect("username/password@ip:port/servicename")
cursor = conn.cursor()

result=cursor.execute('Select * from table where rownum = 1')


# read to pandas
query = 'Select * from table where rownum = 1'
pd.read_sql(query, con=conn)