[PyQt] Keyboard shortcuts not working

[Karlo Lozovina]

Hi guys!

I'm trying to add keyboard shortcuts to my application, but I'm stuck
at the beginning. Here is a simple application that I can't get to
work:

###
import sys
from PyQt4.Qt import Qt
from PyQt4.QtCore import QObject, SIGNAL
from PyQt4.QtGui import QWidget, QApplication, QMainWindow, QAction,
QIcon, QKeySequence

class MainWindow(QMainWindow):
    def __init__(self, parent):
        QMainWindow.__init__(self, parent)
        self.centralwidget = QWidget(self)

        self.action = QAction(QIcon(), "Down", self)
        self.action.setShortcut("Ctrl+D")
        self.action.setShortcutContext(Qt.ApplicationShortcut)

        QObject.connect(self.action, SIGNAL("triggered()"), self.down)

    def down(self):
        print 'DOWN!!!'

def main():
    app = QApplication(sys.argv)
    mw = MainWindow(None)
    mw.show()
    sys.exit(app.exec_())

if __name__ == '__main__':
    main()
###

I've tried using different shortcut context: WindowShortcut,
WidgetShortcut, ApplicationShortcut, but it still doesn't work.

Any help greately appreciated.

-- 
Mosor