code: def kill_process(process_name):
      
      try:
          sys.stdout.write('killing: {0} {{ \n'.format(process_name))
          pid = get_process_pid(process_name)
          if pid is not None and psutil.pid_exists(int(pid)):
              p = psutil.Process(pid)
              p.kill()
              p.wait()
              remove_pid_file(process_name)
      except Exception as e:
          sys.stderr.write('Exception on killing {0} : {1} \n'.format(process_name, e))
      finally:
          sys.stdout.write('}')
docs: method is called to kill a running process