Question

我在系统启动时从python启动另一个进程时遇到问题，但不是从终端运行时。

我的代码：

import pika
import time
import sys
import logging
import json
import os
import config
import subprocess as sp
from pika.exceptions import AMQPConnectionError, ConnectionClosed

logging.basicConfig(filename='/opt/myapp/logs/pika.log', format='%(asctime)s %(message)s', datefmt='%m/%d/%Y %I:%M:%S %p')


global con 

try:
    con = pika.BlockingConnection(pika.ConnectionParameters(host=config.HOST_IP))
    print "Connected to RabbitMQ Server..."
    logging.info('Connected to RabbitMQ Server')    
except AMQPConnectionError:
    sys.exit(0)


ch = con.channel()

ch.queue_declare(queue='msgs', durable=True)

def on_recieve(ch, method, properties, body):
    print body
    data = json.loads(body)
    res_ip_raw = data['laptop_ip']
    res_ip_decoded = res_ip_raw.replace("\r\n", "")

    if res_ip_decoded == config.LAPTOP_IP:
    logging.info(body)
        # **Unable to lauch this**
    child=sp.Popen("/usr/bin/firefox", shell=True)

    logging.info('Launching firefox with pid '+str(child.pid) )
        time.sleep( body.count('.'))
        ch.basic_ack( delivery_tag = method.delivery_tag)


ch.basic_qos(prefetch_count=1)
ch.basic_consume(on_recieve, queue='msgs')


if __name__ == '__main__':
    try:
        ch.start_consuming()
    except (ConnectionClosed, KeyboardInterrupt, SystemExit):
        sys.exit(0)

这是我的启动脚本

start_up.sh

#!/bin/sh
nohup /usr/bin/python /opt/myapp/main.py &

main.py工作正常，firefox启动当我从终端运行这个时 ./main.py或/etc/init.d/start_up.sh

任何帮助？

谢谢！

在ubuntu的系统启动时从python子进程模块启动另一个程序

0 个答案: