def __init__(self):
        super(QWizardPage, self).__init__()

        self.ui = Ui_SelectExportType()
        self.ui.setupUi(self)

        self.setTitle("Select Export Type")
        self.setSubTitle(
            "Pick the type of export you'd like make from the list below.")

        self.registerField('exportType*', self.ui.listExportTypes)

        self.ui.listExportTypes.setAttribute(Qt.WA_MacShowFocusRect, False)
        self.ui.listExportTypes.doubleClicked.connect(
            self.__onListItemDoubleClicked)

        self.document_name = None