Python-сообщество

#!/usr/bin/env python2
# -*- coding: UTF-8 -*-

from PyQt4.QtCore import *
from PyQt4.QtGui import *
from PyQt4.QtWebKit import *
import sys, pika, threading

class RabThread(threading.Thread):

    def run(self):
        connection = pika.BlockingConnection(pika.ConnectionParameters(host='localhost'))
        channel = connection.channel()
        channel.queue_declare(queue='pdf_render')

        def callback(ch, method, properties, body):
            print "[x] callback Received %r" % (body,)
            url_load(body)
        channel.basic_consume(callback,queue='pdf_render',no_ack=True)
        channel.start_consuming()


if __name__=="__main__":

    def url_load(url_str):
        print "[+] rabbit taken url:",url_str
        web.load(QUrl(url_str))
        return 0

    def printIt():
        print "[*] Page print"
        web.print_(printer)
        return 0

    app = QApplication(sys.argv)
    web = QWebView()

    web.load(QUrl("http://gmail.com"))
    web.show()

    printer = QPrinter()
    printer.setPageSize(QPrinter.A4)
    printer.setOutputFormat(QPrinter.PdfFormat)
    printer.setOutputFileName("tmp.pdf")

    RabThread().start()
    QObject.connect(web, SIGNAL("loadFinished(bool)"), printIt)
    sys.exit(app.exec_())

[*] Page print
[x] callback Received 'http://site.com'
QObject: Cannot create children for a parent that is in a different thread.
[+] rabbit taken url: http://site.com
(Parent is QNetworkAccessManager(0x2e60aa0), parent's thread is QThread(0x2a42ef0), current thread is QThread(0x331a0e0)