显示子进程的可读输出 check_output

Question

如何使 subprocess.check_output(args, "command") 的输出可供人类阅读？我研究了这个主题，并找到了如何 "tokenize" 而不是 erm.. "de-tokenize" 输出。我下面的示例代码相对来说是我所追求的，但为了更好地解释，当我打印 string = subprocess.check_output(...) 输出的字符串时，它几乎无法理解。

代码：

from subprocess import *
readOutput = check_output(
    "dir",
    shell = True)
print(readOutput)`

输出：

b' Volume in drive C has no label.\r\n Volume Serial Number is 2AAE-9786\r\n\r\n Directory of C:\Users\spike\Documents\GitHub\GitterGUI\example\r\n\r\n10/19/2015  06:29 PM    <DIR>          .\r\n10/19/2015  06:29 PM    <DIR>          ..\r\n10/19/2015  06:29 PM                60 batfile.bat\r\n10/19/2015  06:26 PM                 0 New Bitmap Image.bmp\r\n10/19/2015  06:26 PM                22 New Compressed (zipped) Folder.zip\r\n10/19/2015  06:26 PM    <DIR>          New folder\r\n10/19/2015  06:26 PM    <DIR>          New folder (2)\r\n10/19/2015  06:26 PM                 0 New Text Document (2).txt\r\n10/19/2015  06:26 PM                 0 New Text Document (3).txt\r\n10/19/2015  06:26 PM                 0 New Text Document.txt\r\n10/19/2015  06:27 PM                96 script.py\r\n               7 File(s)            178 bytes\r\n               4 Dir(s)  819,483,295,744 bytes free\r\n'

应该是：

 Volume in drive C has no label.
 Volume Serial Number is 2AAE-9786

 Directory of C:\Users\spike\Documents\GitHub\GitterGUI\example

10/19/2015  06:29 PM    <DIR>          .
10/19/2015  06:29 PM    <DIR>          ..
10/19/2015  06:29 PM                60 batfile.bat
10/19/2015  06:26 PM                 0 New Bitmap Image.bmp
10/19/2015  06:26 PM                22 New Compressed (zipped) Folder.zip
10/19/2015  06:26 PM    <DIR>          New folder
10/19/2015  06:26 PM    <DIR>          New folder (2)
10/19/2015  06:26 PM                 0 New Text Document (2).txt
10/19/2015  06:26 PM                 0 New Text Document (3).txt
10/19/2015  06:26 PM                 0 New Text Document.txt
10/19/2015  06:27 PM                96 script.py
               7 File(s)            178 bytes
               4 Dir(s)  819,481,882,624 bytes free

如您所见，我的脚本需要认真工作。提前致谢。

Answer 1

使用print((readOutput).decode('utf-8')) 而不是 print(readOutput)

问题是字符串 readOutput 的输出不是 Unicode 格式。

编辑：

我喜欢这个回复：

"Alternatively, pass universal_newlines=True to check_output to make it decode automatically."

– ShadowRanger

显示子进程的可读输出 check_output

Display readable output from subprocess check_output

python

subprocess

tokenize

python-3.x

output