通过Python静默运行7zip命令行 [英] Running 7zip command line silently via Python

问题描述

我已经看到了很多有关使用popen对.exe文件执行python的问题，并提到了使用PIPE停止进程输出的问题.抱歉，如果我的术语不正确，我是python的新手.

I've seen plenty of questions regarding the python execution of a .exe file using popen and mentions of using PIPE to stop output of the process. Apologies if my terminology is incorrect, i'm very new to python.

这个问题的主要目的是添加stdout = PIPE或类似的东西以防止显示任何输出，例如

My main aim of this question to to add stdout=PIPE or something similar to prevent any output showing, such as

正在提取文件名..."，这非常糟糕，因为某些rar文件很大.

"Extracting filename..." This is very bad as some rars are large.

我正在尝试静默/隐藏/运行7zip.这样整个过程可以在后台运行，并且不会干扰当前的屏幕操作.

I am trying to run 7zip silently/hidden/quite. So that the entire process can run in the background and not interfere with current on screen operations.

这时，当前脚本可以正常工作.

At this time, the current script works fine.

这是我的python代码: Python 2.7

Here is my python code: Python 2.7

用于执行代码的Pythonw.exe:

Pythonw.exe used to execute code:

pythonw.exe script.py

pythonw.exe script.py

if ".rar" in input_file: 

    subprocess.Popen("C:\\Program Files (x86)\\7-Zip\\7z e " + input_file + " -o" + output_dest + " -y")

ALl的帮助表示感谢，谢谢.

ALl help appreciated, thanks.

推荐答案

将stdout和stderr插入系统的空文件:

Pipe stdout and stderr to your system's null file:

import os

with open(os.devnull, 'w') as null:
    subprocess.Popen(['7z', 'e', input_file, '-o', output_dest, '-y'], stdout=null, stderr=null)

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