Bug #1057167 “global menu not work with PySide apps” : Bugs : appmenu-qt

example.py

from PySide.QtCore import Slot, QTranslator, QLocale, Signal, QSettings
from PySide.QtGui import QApplication, QSystemTrayIcon, QMenu, QIcon, QMainWindow
from PySide import QtCore, QtGui

class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(800, 600)
        self.centralwidget = QtGui.QWidget(MainWindow)
        self.centralwidget.setObjectName("centralwidget")
        MainWindow.setCentralWidget(self.centralwidget)
        self.menubar = QtGui.QMenuBar(MainWindow)
        self.menubar.setGeometry(QtCore.QRect(0, 0, 800, 25))
        self.menubar.setObjectName("menubar")
        self.menuSd = QtGui.QMenu(self.menubar)
        self.menuSd.setObjectName("menuSd")
        MainWindow.setMenuBar(self.menubar)
        self.statusbar = QtGui.QStatusBar(MainWindow)
        self.statusbar.setObjectName("statusbar")
        MainWindow.setStatusBar(self.statusbar)
        self.action213 = QtGui.QAction(MainWindow)
        self.action213.setObjectName("action213")
        self.actionSdf = QtGui.QAction(MainWindow)
        self.actionSdf.setObjectName("actionSdf")
        self.menuSd.addAction(self.action213)
        self.menuSd.addAction(self.actionSdf)
        self.menubar.addAction(self.menuSd.menuAction())

        self.retranslateUi(MainWindow)
        QtCore.QMetaObject.connectSlotsByName(MainWindow)

    def retranslateUi(self, MainWindow):
        MainWindow.setWindowTitle(QtGui.QApplication.translate("MainWindow", "MainWindow", None, QtGui.QApplication.UnicodeUTF8))
        self.menuSd.setTitle(QtGui.QApplication.translate("MainWindow", "sd", None, QtGui.QApplication.UnicodeUTF8))
        self.action213.setText(QtGui.QApplication.translate("MainWindow", "213", None, QtGui.QApplication.UnicodeUTF8))
        self.actionSdf.setText(QtGui.QApplication.translate("MainWindow", "sdf", None, QtGui.QApplication.UnicodeUTF8))


class Editor(QMainWindow): 

    def __init__(self, *args, **kwargs):
        QMainWindow.__init__(self, *args, **kwargs)
        self.ui = Ui_MainWindow()
        self.ui.setupUi(self)

app = QApplication([])
e = Editor()
e.show()
app.exec_()

It works fine when:
self.menubar = QtGui.QMenuBar(MainWindow) # replace this
self.menubar = MainWindow.menuBar() # with this
self.menubar = QtGui.QMenuBar() # or this