Running a .exe program using Python

Question

Little background: Code::Blocks is an IDE with a C++ integrated compiler. When creating a C++ project, it creates a .exe file so you can run the project.

So now I want to run that executable file using a Python script (Using VSCode). I tried subprocess.call(), subprocess.run() and subprocess.Popen(), and all of them start the background process, but it doesn't compile, so it just keeps running on the Task Manager. If I run it manually (by double-clicking it) then it opens, it closes and I get my correct answer on the output file.

This is the C++ project folder for the problem "kino" :

This is a photo with the .exe on the Task Manager :

And this is my Python code:

process = subprocess.run([r'C:\Users\Documents\kino\kino.exe'], shell = True)

I want to say that I also tried subprocess.kill(), but it should terminate on its own (and I don't get my answer).

Edit: Here is a video describing the problem

What happens when you run subprocess.call([r'C:\Users\Documents\kino\kino.exe']) ? I think it would be the right choice — roygbiv
– roygbiv, Commented Jun 10, 2020 at 20:10
What does kino.exe do? Could it be waiting for input on stdin? Maybe it works differently depending on if its stdin is connected to a console or not? — Miles Budnek
– Miles Budnek, Commented Jun 10, 2020 at 20:20
The same thing happens when I run subprocess.call(), but the program freezes until I close the executable. — Matteo.Verz
– Matteo.Verz, Commented Jun 11, 2020 at 6:21
I have a .in file (for input), a .out file (for output), the main.cpp file (which contains the c++ code) and the executable. The executable takes the input from the .in file, runs it using the .cpp file and prints the answer on the .out file. Should I post a small clip of how it works? — Matteo.Verz
– Matteo.Verz, Commented Jun 11, 2020 at 6:22

lucagrosshennig · Accepted Answer · 2020-06-10 20:43:17Z

1

Or you can just do it with subprocess

import subprocess subprocess.call(["C:\\Users\\Documents\\kino\\kino.exe"])

answered Jun 10, 2020 at 20:43

lucagrosshennig

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Comments

Asriel · Accepted Answer · 2020-06-10 20:09:09Z

0

Instead of running a subprocess you could execute the program with msdos commands:

import os
os.system('C:\Users\Documents\kino\kino.exe')

The only problem is that this will block your python script until the .exe program stops running.

answered Jun 10, 2020 at 20:09

Asriel

1909 bronze badges

2 Comments

Matteo.Verz Over a year ago

Same thing happens... The program executes but it runs in the background and it doesn't stop.

lloydyu24 Over a year ago

use subprocess.Popen()

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