如何使用 python 与 exe 文件交互

Question

我有一个 exe 文件，它接受键盘输入，returns 一个基于输入文本的响应。当试图读取 exe 返回的输出时，python 脚本冻结。

我运行 Windows 7 岁 python3.7。我已经在 continuously interacting with .exe file using python.

尝试过答案

from subprocess import Popen, PIPE

location = "C:\Users\file.exe"

p= Popen([location],stdin=PIPE,stdout=PIPE,stderr=PIPE, encoding="UTF8")
command='START'
p.stdin.write(command)
response=p.stdout.read()

我希望用输出文本填充响应，但程序却在该行冻结。

我要交互的exe文件是here（EMBRYO文件）

Answer 1

调用 p.stdout.readline() 而不是 p.stdout.read()。这将一次给你一行，而不是等待进程关闭它的标准输出管道。有关更多信息，请阅读 documentation.

这里有一个更详细的例子。假设这个脚本是您的 exe 文件的替代品：

# scratch.py
from time import sleep

for i in range(10):
    print('This is line', i)
    sleep(1)

现在我启动该脚本，并尝试读取其输出：

from subprocess import Popen, PIPE, STDOUT

p = Popen(['python', 'scratch.py'], stdin=PIPE, stdout=PIPE, stderr=STDOUT, encoding='UTF8')
for i in range(10):
    response = p.stdout.read()
    print('Response', i)
    print(response)

结果如下所示：它等待十秒钟，然后打印出以下内容：

Response 0
This is line 0
This is line 1
This is line 2
This is line 3
This is line 4
This is line 5
This is line 6
This is line 7
This is line 8
This is line 9

Response 1

Response 2

Response 3

Response 4

Response 5

Response 6

Response 7

Response 8

Response 9

现在，如果我将其更改为 readline()，我会得到：

Response 0
This is line 0

Response 1
This is line 1

Response 2
This is line 2

Response 3
This is line 3

Response 4
This is line 4

Response 5
This is line 5

Response 6
This is line 6

Response 7
This is line 7

Response 8
This is line 8

Response 9
This is line 9

Answer 2

似乎 stdout 没有被执行，因为 stdin 没有被刷新，在调用 p.stdin.flush() 之后一切正常！

from subprocess import Popen, PIPE

location = "C:\Users\file.exe"

p= Popen(location,stdin=PIPE,stdout=PIPE,stderr=PIPE, encoding="UTF8")
command='START\n'
p.stdin.write(command)
p.stdin.flush()  # important
response=p.stdout.read()

感谢所有帮助过的人:)

如何使用 python 与 exe 文件交互

How to interact with an exe file with python

python

subprocess

exe

input

output