作为@tony suggested，您可以在使用multiprocessing模块创建的子进程上设置daemon=True标志。要在python2.4上安装它，请键入：pip install multiprocessing。在
如果主进程被信号终止，则子进程不会终止，因此需要提供适当的信号处理程序：#!/usr/bin/env python
import logging, signal, sys, time
import multiprocessing as mp # `pip install multiprocessing` on Python <2.6
class AddProcessNameFilter(logging.Filter):
"""Add missing on Python 2.4 `record.processName` attribute."""
def filter(self, r):
r.processName = getattr(r, 'processName', mp.current_process().name)
return logging.Filter.filter(self, r)
def print_dot():
while True:
mp.get_logger().info(".")
time.sleep(1)
def main():
logger = mp.log_to_stderr()
logger.setLevel(logging.INFO)
logger.addFilter(AddProcessNameFilter()) # fix logging records
# catch TERM signal to allow finalizers to run and reap daemonic children
signal.signal(signal.SIGTERM, lambda *args: sys.exit(-signal.SIGTERM))
# create daemonic child processes
processes = [mp.Process(target=print_dot) for _ in range(2)]
for p in processes:
p.daemon = True
p.start()
print_dot()
if __name__=="__main__":
mp.freeze_support()
main()
