#!/usr/bin/python3
# -*- coding: utf-8 -*-
import sys
from PyQt5.QtWidgets import *
from PyQt5.QtGui import *
from PyQt5.QtCore import QCoreApplication
class Example(QMainWindow):

    def __init__(self):
        super().__init__()
        self.initUI()


    def initUI(self):
        QToolTip.setFont(QFont('SansSerif', 10))

        self.setToolTip('This is a <b>QWidget</b> widget')

        btn = QPushButton('Закрыть программу', self)
        btn.setToolTip('This is a <b>QPushButton</b> widget')
        btn.resize(btn.sizeHint())
        btn.move(100, 100)
        btn.clicked.connect(QCoreApplication.instance().quit)

        self.setGeometry(300, 300, 400, 250)
        self.setWindowTitle('Бесполезная программа')
        self.show()

        exitAction = QAction(QIcon('web.ico'), '&Exit', self)
        exitAction.setShortcut('Ctrl+Q')
        exitAction.setStatusTip('Exit')
        exitAction.triggered.connect(qApp.quit)

        printAction = QAction(QIcon('web.ico'), 'Printhello', self)
        printAction.setShortcut('Ctrl+H')
        printAction.setStatusTip('print Hello')
        printAction.triggered.connect(self.printhello)

        self.statusBar()
        menubar = self.menuBar()

        fileMenu = menubar.addMenu('&File')
        fileMenu.addAction(exitAction)
        optionsMenu = menubar.addMenu('&Options')
        optionsMenu.addAction(printAction)


    def closeEvent(self, event):
        reply = QMessageBox.question(self, 'Выход', "Закрыть программу?", QMessageBox.Yes | QMessageBox.No, QMessageBox.No)
        if reply == QMessageBox.Yes:
            event.accept()
        else:
            event.ignore()
    def printhello(self):
        print('Hello!')


if __name__ == '__main__':
    app = QApplication(sys.argv)
    ex = Example()
    sys.exit(app.exec_())