Question

def example_function(self):
        number = self.lineEdit_4.text() #Takes input from GUI
        start = "python3 /path/to/launched/script.py "+variable1+" "+variable2+" "+variable3 #Bash command to execute python script with args.
        for i in range(0,number):
            x = subprocess.Popen(start,stdout=subprocess.PIPE,stderr=subprocess.PIPE,shell=True)#Launch another script as a subprocess

所以，这段代码多次启动另一个Python脚本，每个python脚本包含一个无限的while循环，所以，我试图创建一个函数来杀死上面函数生成的任意数量的进程。我试过像

这样的东西

x.terminate()

但是这只是不起作用，我认为应该杀死所有的子进程，但它不会这样做，我认为它可能会杀死最后一个启动的进程或类似的东西，但我的问题是，如何我可以杀死我的第一个函数启动的任何数量的进程吗？

Answer 1

将所有子流程放在列表中，而不是覆盖x变量

def example_function(self):
    number = self.lineEdit_4.text() #Takes input from GUI
    start = "python3 /path/to/launched/script.py "+variable1+" "+variable2+" "+variable3 #Bash command to execute python script with args.
    procs = []
    for i in range(0,number):
        x = subprocess.Popen(start,stdout=subprocess.PIPE,stderr=subprocess.PIPE,shell=True)#Launch another script as a subprocess
        procs.append(x)
    # Do stuff
    ...
    # Now kill all the subprocesses
    for p in procs:
        p.kill()

如何终止在子进程中打开的所有子进程

1 个答案: