从蟒蛇bash的交互 [英] Interacting with bash from python

问题描述

我一直在玩弄Python的子模块，我想从蟒蛇的bash做一个互动会议。我希望能够从Python的读取庆典输出/写命令，就像我在一个终端仿真器做的。我猜code例子解释更好：

I've been playing around with Python's subprocess module and I wanted to do an "interactive session" with bash from python. I want to be able to read bash output/write commands from Python just like I do on a terminal emulator. I guess a code example explains it better:

>>> proc = subprocess.Popen(['/bin/bash'])
>>> proc.communicate()
('user@machine:~/','')
>>> proc.communicate('ls\n')
('file1 file2 file3','')

（很明显，它不这样的。）是这样的可能，怎么样？

(obviously, it doesn't work that way.) Is something like this possible, and how?

非常感谢

推荐答案

尝试用这个例子：

import subprocess

proc = subprocess.Popen(['/bin/bash'], stdin=subprocess.PIPE, stdout=subprocess.PIPE)
stdout = proc.communicate('ls -lash')

print stdout

您已经阅读有关标准输入，输出和错误。这看起来像好的演讲：<一href=\"http://www.doughellmann.com/PyMOTW/subprocess/\">http://www.doughellmann.com/PyMOTW/subprocess/

You have to read more about stdin, stdout and stderr. This looks like good lecture: http://www.doughellmann.com/PyMOTW/subprocess/

编辑：

另外一个例子：

>>> process = subprocess.Popen(['/bin/bash'], shell=False, stdin=subprocess.PIPE, stdout=subprocess.PIPE)
>>> process.stdin.write('echo it works!\n')
>>> process.stdout.readline()
'it works!\n'
>>> process.stdin.write('date\n')
>>> process.stdout.readline()
'wto, 13 mar 2012, 17:25:35 CET\n'
>>> 

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