使用 Python 在 Windows 上检查进程是否正在运行 [英] Check if a process is running or not on Windows with Python

问题描述

我正在尝试创建一个 Python 脚本，稍后我将其作为服务运行.现在我只想在 iTunes 运行时运行代码的特定部分.我从一些研究中了解到，轮询整个命令列表然后搜索该列表的应用程序的成本很高.

I am trying to create a python script which I will later run as a service. Now I want to run a particular part of the code only when iTunes is running. I understand from some research that polling the entire command list and then searching for the application for that list is expensive.

我发现基于 UNIX 的操作系统上的进程会创建一个锁定文件来通知程序当前正在运行，此时我们可以使用 os.stat(location_of_file) 来检查文件存在以确定程序是否正在运行.

I found out that processes on UNIX-based operating systems create a lock file to notify that a program is currently running, at which point we can use os.stat(location_of_file) to check if the file exists to determine if a program is running or not.

是否有在 Windows 上创建的类似锁定文件?

Is there a similar lock file created on Windows?

如果不是，Python 中有哪些方法可以确定进程是否正在运行?

If not what are the various ways in Python by which we can determine if a process is running or not?

我使用的是 python 2.7 和 iTunes COM 接口.

I am using python 2.7 and iTunes COM interface.

推荐答案

您不能依赖 Linux 或 Windows 中的锁定文件.我会咬紧牙关，遍历所有正在运行的程序.我真的不相信它会像你想象的那样昂贵".psutil 是一个优秀的跨平台 python 模块电缆，用于枚举系统上所有正在运行的程序.

You can not rely on lock files in Linux or Windows. I would just bite the bullet and iterate through all the running programs. I really do not believe it will be as "expensive" as you think. psutil is an excellent cross-platform python module cable of enumerating all the running programs on a system.

import psutil    
"someProgram" in (p.name() for p in psutil.process_iter())

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