仅当 python 脚本未运行时才运行它 [英] Run python script only if it's not running

问题描述

我想从另一个 python 脚本启动一个 python 脚本.我知道该怎么做.但是我应该只在它没有运行时才启动这个脚本.

I want to launch a python script from another python script. I know how to do it. But I should launch this script only if it is not running already.

代码:

import os
os.system("new_script.py")

但我不知道如何检查这个脚本是否已经在运行.

But I'm not sure how to check if this script is already running or not.

推荐答案

试试这个:

import subprocess
import os 

p = subprocess.Popen(['pgrep', '-f', 'your_script.py'], stdout=subprocess.PIPE)
out, err = p.communicate()

if len(out.strip()) == 0:
    os.system("new_script.py")

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