gistfile1.py

#!/usr/bin/python
# -*- coding: utf-8 -*-

import sys
from PyQt4 import QtGui

class Example(QtGui.QMainWindow):
    
    def __init__(self):
        super(Example, self).__init__()
        
        self.initUI()
        
    def initUI(self):               
        
        textEdit = QtGui.QTextEdit()
        self.setCentralWidget(textEdit)

        self.statusBar()

		#  ==================================
		#  MENU BAR

        menubar = self.menuBar()

		#  File menu

        openAction = QtGui.QAction('Open', self)
        openAction.setStatusTip('Open file')
        openAction.triggered.connect(self.close)

        closeAction = QtGui.QAction('Close', self)
        closeAction.setStatusTip('Close file')
        closeAction.triggered.connect(self.close)

        exitAction = QtGui.QAction('Exit', self)
        exitAction.setStatusTip('Exit application')
        exitAction.triggered.connect(self.close)

        fileMenu = menubar.addMenu('&File')
        fileMenu.addAction(openAction)
        fileMenu.addAction(closeAction)
        fileMenu.addAction(exitAction)

		#  About menu

        aboutAction = QtGui.QAction('About', self)
        aboutAction.setStatusTip('About application')
        aboutAction.triggered.connect(self.close)

        helpMenu = menubar.addMenu('&Help')
        helpMenu.addAction(aboutAction)

		#  ==================================
        
        self.setGeometry(300, 300, 350, 250)
        self.setWindowTitle('Main window')    
        self.show()
        
        
def main():
    
    app = QtGui.QApplication(sys.argv)
    ex = Example()
    sys.exit(app.exec_())


if __name__ == '__main__':
    main()