subprocess.call 与 os.system 有何不同 [英] How does subprocess.call differ from os.system

问题描述

我有一个 python 脚本来为我安装/卸载一些经常使用的程序，它还会在卸载后清理一些快捷方式/文件夹.我以前用这个代码删除一个文件夹

I have a python script to install/uninstall some regularly used programs for me and it also does some shortcut/folder clean up after uninstall. I used to use this code to delete a folder

os.system('rd /S /Q "{0}\\{1}"'.format(dirname, name))

效果很好.我正在尝试将我对 os.system 的使用转换为 subprocess.call 所以我将上面的行更改为此

which worked just fine. I am attempting to convert my usage of os.system to subprocess.call so I changed the above line to this

subprocess.call(['rd', '/S', '/Q', '{0}\\{1}'.format(dirname, name)])

但这给出了错误

The system cannot find the file specified (2)

我一定是错误地使用了 subprocess.call，但我无法解决.任何帮助将不胜感激，谢谢.

I must be using subprocess.call incorrectly but I can't work it out. Any help would be appreciated, thanks.

推荐答案

区别在于 os.system 默认在子 shell 中执行，而 subprocess.call 没有.尝试使用 shell=True.

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