subprocess.Popen 带有 unicode 路径

subprocess.Popen with a unicode path(subprocess.Popen 带有 unicode 路径)

问题描述

我想打开一个 unicode 文件名.以下代码:

I have a unicode filename that I would like to open. The following code:

cmd = u'cmd /c "C:\Pokxe9mon.mp3"'
cmd = cmd.encode('utf-8')
subprocess.Popen(cmd)

返回

>>> 'C:Pokיmon.mp3' is not recognized as an internal or external command, operable program or batch file.

即使该文件确实存在.为什么会这样?

even though the file do exist. Why is this happening?

推荐答案

看起来您使用的是 Windows 和 Python 2.X.使用 os.startfile:

It looks like you're using Windows and Python 2.X. Use os.startfile:

>>> import os
>>> os.startfile(u'Pokémon.mp3')

不直观地，让命令 shell 做同样的事情是:

Non-intuitively, getting the command shell to do the same thing is:

>>> import subprocess
>>> import locale
>>> subprocess.Popen(u'Pokémon.mp3'.encode(locale.getpreferredencoding()),shell=True)

在我的系统上，命令 shell (cmd.exe) 编码是 cp437，但对于 Windows 程序是 cp1252.Popen 想要编码为 cp1252 的 shell 命令.这似乎是一个错误，在 Python 3.X 中似乎也已修复:

On my system, the command shell (cmd.exe) encoding is cp437, but for Windows programs is cp1252. Popen wanted shell commands encoded as cp1252. This seems like a bug, and it also seems fixed in Python 3.X:

>>> import subprocess
>>> subprocess.Popen('Pokémon.mp3',shell=True)

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