自动输入到Python提示中 [英] Automate Input Into Python Prompts

问题描述

我正在尝试编写一个Python脚本，它将为我执行bash命令行程序.该程序要求用户输入两次，我希望我的脚本每次都自动输入"1".

I am trying to write a python script which will execute a bash command line program for me. This program asks for user input twice, and I want my script to automatically enter "1" each time.

我听说过这样的事情:

os.system("program < prepared_input")

如何编写prepare_input?谢谢.

How do I write prepared_input? Thanks.

推荐答案

创建两行文件:

1
1

然后在bash脚本中使用 read 来获取输入:

And use read in the bash script to get the input:

演示:

$ cat abc
1
1
$ cat so.sh
#!/bin/bash
read data
echo "You entered $data"
read data
echo "Now you entered $data"
$ bash so.sh <abc
You entered 1
Now you entered 1

Python:

>>> import os
>>> os.system("bash so.sh < abc")
You entered 1
Now you entered 1
0

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