Пример программы на PyQt5

from PyQt5 import QtWidgets from PyQt5.QtWidgets import QApplication, QMainWindow import sys def application(): app = QApplication(sys.argv) window = QMainWindow() window.setWindowTitle("Простая программа") window.setGeometry(750, 450, 800, 500) window.show() sys.exit(app.exec_()) if __name__ == '__main__': application()