LivePad.ru

from PyQt.QtCore import *

from PyQt.QtGui import *

import sys



class Dialog(QDialog):

    def __init__(self, parent=None)

        super(Dialog, self).__init__(parent)

        self.button = QPushButton('Hello')

        layout = QHBoxLayout()

        layout.addWidget(layout)

        self.button.clicked.connect(clickHello)

        self.setWindowTitle('Untitled')



    def clickHello(self):

        self.setWindowTitle('Hello')



if __name__ == '__main__':

    app = QApplication(sys.argv)

    dialog = Dialog()

    dialog.show()

    app.exec_()