在python中，以字符串形式获取系统命令的输出
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in python, get the output of system command as a string
提问by S4M
In python I can run some system command using os or subprocess. The problem is that I can't get the output as a string. For example:
在 python 中，我可以使用 os 或 subprocess 运行一些系统命令。问题是我无法将输出作为字符串。例如：
>>> tmp = os.system("ls")
file1 file2
>>> tmp
0
I have an older version of subprocess that doesn't have the function check_out, and I would prefer a solution that doesn't require to update that module since my code will run on a server I don't have full admin rights.
我有一个没有函数 check_out 的旧版本子进程，我更喜欢不需要更新该模块的解决方案，因为我的代码将在我没有完全管理员权限的服务器上运行。
This problem seems trivial, yet I couldn't find a trivial solution
这个问题看起来微不足道，但我找不到微不足道的解决方案
采纳答案by Hari Menon
Use os.popen():
使用os.popen()：
tmp = os.popen("ls").read()
The newer way (> python 2.6) to do this is to use subprocess:
执行此操作的较新方法（> python 2.6）是使用subprocess：
proc = subprocess.Popen('ls', stdout=subprocess.PIPE)
tmp = proc.stdout.read()
