multithreading - Python: thread in PyQt, emit method to get the data -


i try value of count_total_value in user interface when call continusread method, (it should "toto" according want do) default value "azerty" displayed. please can tell me wrong?

this code:

#!/usr/bin/env python3 pyqt4 import qtcore, qtgui  import sys import os import subprocess import time import threading ctypes import * import ctypes #import converted python ui file test_error_rx import ui_mainwindow  class mythread(qtcore.qthread):     count_total_valuechanged = qtcore.pyqtsignal(str)      def __init__(self, parent=none):         super(mythread, self).__init__(parent=parent)         self.count_total_value = 'azerty'      def run(self):     ##do things calculate count_total_value         count_total_value='toto'         self.count_total_valuechanged.emit((self.count_total_value))         time.sleep(0.1)   class main( qtgui.qmainwindow,qtgui.qwidget):     def __init__(self):         qtgui.qmainwindow.__init__(self)         self.ui = ui_mainwindow()         self.ui.setupui(self)          # connect buttons         qtcore.qobject.connect(self.ui.continusread,qtcore.signal("clicked()"),self.continusread)          self.__thread = mythread(self)         self.__thread.count_total_valuechanged.connect(self.ui.count_total.settext)      def continusread(self):        self.__thread.start()      def main():         app = qtgui.qapplication(sys.argv)         window = main()         window.show()         sys.exit(app.exec_())      if __name__ == "__main__":         main()

in run() method of thread class mythread set count_total_value='toto' when should self.count_total_value='toto'.

note when posting on stackoverflow should:

  1. post minimilistic working example (you haven't included ui in above code no-one can run script)
  2. check posted code has correct indentation , fix mistakes (your posted code mess of incorrect indentation)

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