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_()