'Reimplement Qt method'

def keyPressEvent(self, event):

    if (event.key() in (Qt.Key_Enter, Qt.Key_Return)):
        self.clicked()
    elif (event.key() == Qt.Key_F2):
        self.rename()
    elif (event.key() == Qt.Key_Delete):
        self.delete()
    elif (event.key() == Qt.Key_Backspace):
        self.go_to_parent_directory()
    else:
        QTreeView.keyPressEvent(self, event)
