Python script to kill a process by its name

kill_process.py

import os, signal

def check_kill_process(pstring):
    for line in os.popen("ps ax | grep " + pstring + " | grep -v grep"):
        fields = line.split()
        pid = fields[0]
        os.kill(int(pid), signal.SIGKILL)

You can use psutil's process_iter() to list processes, and use each process's name() and cmdline() method to get its name and command line arguments.
For example, this gist implements a few functions that list processes by name or by filtering on their command line arguments.

@marcoagner Perfect solution for my selenium issue with driver.quit() not terminating chromedriver.

macOS: Catalina  
Python: 3.7.4
ChromeDriver: 80.0.3987.106