PyQt QMenu()

#!/usr/bin/python

from PyQt4 import QtGui, QtCore
class MainWindow(QtGui.QMainWindow):
 def __init__(self, parent=None):
  QtGui.QMainWindow.__init__(self, parent)
  fileMenu = self.menuBar().addMenu('File')
  self.newMenu = QtGui.QMenu(fileMenu)
  self.newMenu.setTitle('New')
  self.newMenu.addAction('New Word')
  self.newMenu.addAction('New Excel')
  self.newAction = fileMenu.addMenu(self.newMenu)
  self.saveAction = fileMenu.addAction('Save')
  editMenu = self.menuBar().addMenu('Edit')
  hideAction = editMenu.addAction('Hide')
  self.connect(hideAction, QtCore.SIGNAL('triggered()'), self.hideMenu)
  
 def hideMenu(self):
  self.newAction.setVisible(False)
  self.saveAction.setVisible(False)
  
if __name__ == '__main__':
 import sys
 app = QtGui.QApplication(sys.argv)
 window = MainWindow()
 window.show()
 sys.exit(app.exec_())