Linux系统重启python程序

#! /usr/bin/env python
#coding=utf-8

import sys
import ConfigParser
import urllib
import urllib2
from util import http_server
from logger import logger
import json
import traceback
import time

reload(sys)
sys.setdefaultencoding('utf-8')

import os
import signal

Max_process = 2
log_index = 0

# start python program
def start():
    global Max_process
    global log_index
    path = os.popen('pwd').readlines()[0]
    print path,'==='
    os.system('nohup python serverdate.py &')
    time.sleep(10)

#stop child
def stopChild():
    processInfo = os.popen("ps -ef|grep serverdate.py|grep -v grep|awk '{print $2}'").readlines()
    print processInfo,'------'
    for pid in processInfo:
        os.kill(int(pid),signal.SIGKILL)

#stop parent
def stopParent():
    parentList = os.popen("ps -ef|grep serverdate.py|grep -v grep|awk '{print $2}'").readlines()
    print parentList,'***'
    for pid in parentList:
        os.kill(int(pid),signal.SIGKILL)

def stopAll():
    stopChild()
    stopParent()

try:
    fun = sys.argv[1]
except Exception:
    fun = ''
if(fun == 'start'):
    start()
if(fun == 'stop'):
    stopAll()
if(fun == 'restart'):
    stopAll()
    time.sleep(10)
    start()

使用方法：python  serverdate.py start|stop|restart