子进程：在Windows中删除子进程

Question

在Windows上，subprocess.Popen.terminate调用win32的TerminalProcess。但是，我看到的行为是我尝试终止的进程的子进程仍在运行。这是为什么？如何确保杀死该进程启动的所有子进程？

Answer 1

通过使用psutil：

import psutil, os

def kill_proc_tree(pid, including_parent=True):    

    parent = psutil.Process(pid)

    children = parent.children(recursive=True)

    for child in children:

        child.kill()

    gone, still_alive = psutil.wait_procs(children, timeout=5)

    if including_parent:

        parent.kill()

        parent.wait(5)

me = os.getpid()

kill_proc_tree(me)

Answer 2

这是Job对象方法的示例代码，但不是subprocess使用win32api.CreateProcess

import win32process

import win32job

startup = win32process.STARTUPINFO()

(hProcess, hThread, processId, threadId) = win32process.CreateProcess(None, command, None, None, True, win32process.CREATE_BREAKAWAY_FROM_JOB, None, None, startup)

hJob = win32job.CreateJobObject(None, '')

extended_info = win32job.QueryInformationJobObject(hJob, win32job.JobObjectExtendedLimitInformation)

extended_info['BasicLimitInformation']['LimitFlags'] = win32job.JOB_OBJECT_LIMIT_KILL_ON_JOB_CLOSE

win32job.SetInformationJobObject(hJob, win32job.JobObjectExtendedLimitInformation, extended_info)

win32job.AssignProcessToJobObject(hJob, hProcess)