#https://www.pythonguis.com/tutorials/pyqt6-signals-slots-events/
import sys
from PyQt6.QtWidgets import QApplication, QMainWindow
class MainWindow(QMainWindow):
    def __init__(self):
        super().__init__()
        self.setWindowTitle("Moja aplikacija")
aplikacija = QApplication(sys.argv)
okno = MainWindow()
okno.show()
aplikacija.exec()