如何在 Python 中设置环境变量?
问题描述
我需要在 Python 脚本中设置一些环境变量，并且我希望从 Python 调用的所有其他脚本都能看到环境变量的设置.
I need to set some environment variables in the Python script and I want all the other scripts that are called from Python to see the environment variables' set.
如果我这样做，
os.environ["DEBUSSY"] = 1
它抱怨说 1 必须是一个字符串.
it complains saying that 1 has to be a string.
我还想知道一旦我设置了它，如何在 Python 中读取环境变量(在脚本的后半部分).
I also want to know how to read the environment variables in Python (in the latter part of the script) once I set it.
解决方案
环境变量必须是字符串，所以使用
Environment variables must be strings, so use
os.environ["DEBUSSY"] = "1"
将变量DEBUSSY设置为字符串1.
以后要访问这个变量，只需使用:
To access this variable later, simply use:
print(os.environ["DEBUSSY"])
子进程会自动继承父进程的环境变量 -- 无需您进行任何特殊操作.
Child processes automatically inherit the environment variables of the parent process -- no special action on your part is required.
相关文章