如何在python中更改环境变量？ [英] How to change environment variables in python?

问题描述

我有一个简单的python脚本（test.py）：

i have a simple python script ( test.py ):

import cx_Oracle
from cx_Oracle
tns = cx_Oracle.makedsn('10.10.1.3', 1521, 'etst')
db = cx_Oracle.connect('test', 'test', tns)

如果我使用环境设置运行脚本，这是可行的：

it is work if I run script with enviroument settings:

export LD_LIBRARY_PATH=/usr/lib/oracle/11.2/client64/lib
./test.py

我可以在python脚本中设置环境变量吗？

Can I set environment variables in python script ?

os.environ['LD_LIBRARY_PATH'] = "/usr/lib/oracle/11.2/client64/lib"
os.putenv('LD_LIBRARY_PATH', "/usr/lib/oracle/11.2/client64/lib/")

不起作用。

推荐答案

您可以设置这样，但是 $ LD_LIBRARY_PATH 会被之前已经运行的加载器读取，因此您必须设置一个预先在外部。

You can set them that way, however $LD_LIBRARY_PATH is read by the loader which has already run before that therefore you must set that one externally beforehand.

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