如何指定Popen的工作目录 [英] How can I specify working directory for popen

问题描述

是否可以在Python的subprocess.Popen()中指定命令的运行目录?

Is there a way to specify the running directory of command in Python's subprocess.Popen()?

例如:

Popen('c:\mytool\tool.exe', workingdir='d:\test\local')

我的Python脚本位于C:\programs\python

My Python script is located in C:\programs\python

是否可以在目录D:\test\local中运行C:\mytool\tool.exe?

Is is possible to run C:\mytool\tool.exe in the directory D:\test\local?

如何设置子流程的工作目录?

How do I set the working directory for a sub-process?

推荐答案

subprocess.Popen 使用cwd参数设置当前工作目录；您还需要转义反斜杠('d:\\test\\local')，或使用r'd:\test\local'，以便Python不会将反斜杠解释为转义序列.编写方式上，\t部分将转换为 tab .

subprocess.Popen takes a cwd argument to set the Current Working Directory; you'll also want to escape your backslashes ('d:\\test\\local'), or use r'd:\test\local' so that the backslashes aren't interpreted as escape sequences by Python. The way you have it written, the \t part will be translated to a tab.

因此，您的新行应如下所示:

So, your new line should look like:

subprocess.Popen(r'c:\mytool\tool.exe', cwd=r'd:\test\local')

---

要将您的Python脚本路径用作cwd，请import os并使用以下命令定义cwd:

---

To use your Python script path as cwd, import os and define cwd using this:

os.path.dirname(os.path.realpath(__file__)) 

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