PyQT: QDialog outside main thread?

[__patrice__]

Hi,

I'am not into threading that much and so might have a stupid question. I'am trying to build a Viewer, usable in a data flow like python framework. Means I want to create a QDialog showing me some results in my script but it should not kill the main thread but continuing my script when closed. Is this possible and has anyone a hint for me how to do it?

What I'am currently doing is this, but gives me the error:

QApplication::exec: Must be called from the main thread

@
from future import print_function

from PyQt4 import QtGui
from PyQt4.QtCore import *
from PyQt4.QtGui import *
from PyQt4.QtOpenGL import *

from Viewer_UI import Ui_Dialog

from thread import start_new_thread

import sys

class Viewer(QDialog, Ui_Dialog):
def init(self, data, parent=None):
QDialog.init(self, parent)
self.setupUi(self)

    #assert isinstance(arrv, ArrayVector)
    self.data = data


def process(self):
    # dummy worker process
    self.label.setText(QString(self.data))
    self.finished.emit()

finished = pyqtSignal()

def main(data):
window = Viewer(data)
window.show()
return qApp.exec_()

def run(data, argv=sys.argv):
app = QtGui.QApplication(argv)
start_new_thread(main, (data, ))
@

Thx