[英]Is there any method to append path to environment variable 'PATH' in python
I want to append the path to exists environment variable PATH using python script. 我想使用python脚本将该路径附加到存在的环境变量PATH中。
I have tried to use os.environ['path'] = 'C:\\foo\\bin:%PATH%'
, but its deleting all the existing paths and creating 'C:\\foo\\bin:%PATH%'
as new path value. 我尝试使用
os.environ['path'] = 'C:\\foo\\bin:%PATH%'
,但是它删除了所有现有路径并创建了'C:\\foo\\bin:%PATH%'
作为新'C:\\foo\\bin:%PATH%'
路径值。
os.environ['path'] = 'C:\foo\bin:%PATH%'
You should be doing 你应该在做
import os
os.environ["PATH"] = "/your/path/"+ os.pathsep + os.environ["PATH"]
In your code: 在您的代码中:
os.environ['path'] = 'C:\foo\bin:%PATH%
python
does not know what to do with %PATH%
in the string, but the old value of the PATH
environment variable is accessible as os.environ['path']
, so you can simply do: python
不知道如何处理字符串中的%PATH%
,但是可以通过os.environ['path']
访问PATH
环境变量的旧值,因此您可以简单地执行以下操作:
os.environ['path'] = 'C:\foo\bin;' + os.environ['path']
You should be able to modify os.environ
. 您应该能够修改
os.environ
。
Since os.pathsep
is the character to separate different paths, you should use this to append each new path: 由于
os.pathsep
是分隔不同路径的字符,因此应使用此字符追加每个新路径:
os.environ["PATH"] += os.pathsep + path
or, if there are several paths to add in a list: 或者,如果要在列表中添加多个路径:
os.environ["PATH"] += os.pathsep + os.pathsep.join(pathlist)
As you mentioned, os.path.join
can also be used for each individual path you have to append in the case you have to construct them from separate parts. 如前所述,在必须从单独的部分构造它们的情况下,也可以将
os.path.join
用于每个单独的路径。
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