How Can I Prevent Console Windows from Popping Up When Running System Commands in Python?

Hiding the Console with os.system() and subprocess.call()

Using os.system() or subprocess.call() can be convenient for running system commands from within Python scripts. However, these functions often result in the popping up of a console window, which can be undesirable. There are several techniques to suppress this behavior.

Using the STARTUPINFO Structure

The subprocess.STARTUPINFO class provides control over the startup behavior of subprocesses. By setting the STARTF_USESHOWWINDOW flag and specifying SW_HIDE as the show window flag, you can prevent the console window from being created:

import subprocess

si = subprocess.STARTUPINFO()
si.dwFlags |= subprocess.STARTF_USESHOWWINDOW
si.wShowWindow = subprocess.SW_HIDE
subprocess.call('taskkill /F /IM exename.exe', startupinfo=si)

Using Creation Flags

Alternatively, you can set the creation flags of thesubprocess call to explicitly disable window creation:

import subprocess
from ctypes import windll

subprocess.call('taskkill /F /IM exename.exe', 
                creationflags=windll.kernel32.CREATE_NO_WINDOW)

Detaching the Child Process

To completely detach the child process from the console, you can use the DETACHED_PROCESS flag:

import subprocess
from ctypes import windll

subprocess.call('taskkill /F /IM exename.exe', 
                creationflags=windll.kernel32.DETACHED_PROCESS)

This method removes the child's console handles and prevents it from inheriting the parent's console.

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