即让Python脚本在后台运行

1 方式1

Linux下通过nohup+&方式

nohup python test.py &> run.log &

2 方式2

Linux下通过os.fork实现

3 方式3*

通过第三方包[pep3143daemon]()

import os
import time
import syslog
from pep3143daemon import DaemonContext, PidFile
def main():
    with open('out.txt', 'w') as out:
        for i in range(30):
            out.write('write number {}\n'.format(i))
            time.sleep(1)
        out.write('done\n')
pid = 'test.pid'
pidfile = PidFile(pid)
daemon = DaemonContext(
    pidfile=pidfile,
    working_directory=os.getcwd())  # 设置工作目录为当前目录
print('pidfile is: {0}'.format(pid))
print('daemonizing...')
daemon.open()
main()

参考：

• https://www.jb51.net/article/54199.htm
• https://www.cnblogs.com/robinunix/p/8436455.html
• 
  
• https://stackoverflow.com/questions/473620/how-do-you-create-a-daemon-in-python