访问 Oracle Instant Client 下载页面：Oracle Instant Client Downloads，下载以下文件：Basic Package: 包含基本的库，解压下载的文件到一个目录oracle-instantclient
在终端中运行以下命令(加入path也可以)：
export DYLD_LIBRARY_PATH=/Users///oracle-instantclient
终端运行pip install cx_Oracle
import cx_Oracle
connection = None
try:
connection = cx_Oracle.connect(
user='ISPDC',
password='CONTI',
dsn='127.0.0.1:1521/DBSABS06'
)
print("Connection successful")
except cx_Oracle.DatabaseError as e:
print("Database connection error:", e)
finally:
if connection:
connection.close()
ORA-24454: client host name is not set
终端输入hostname，获取返回结果，然后编辑hosts文件，输入"127.0.0.1"对应hostname返回的结果，就可以了
