def add(self, elem, replace=False):
        """Add a requirement.

        :param elem: a string or :class:`Requirement` instance.
        :param replace: if `True`, packages in the set with the same name will
            be removed first.
        """
        if isinstance(elem, text_type):
            elem = Requirement.coerce(elem)
        if replace and elem in self:
            self.remove(elem)
        super(Requirements, self).add(elem)
def on_combo_box_fuzzing_label_current_index_changed(self, index: int):
        self.fuzz_table_model.fuzzing_label = self.current_label
        self.fuzz_table_model.update()
        self.update_message_data_string()
        self.ui.tblFuzzingValues.resize_me()

        self.ui.spinBoxFuzzingStart.blockSignals(True)
        self.ui.spinBoxFuzzingStart.setValue(self.current_label_start + 1)
        self.ui.spinBoxFuzzingStart.blockSignals(False)

        self.ui.spinBoxFuzzingEnd.blockSignals(True)
        self.ui.spinBoxFuzzingEnd.setValue(self.current_label_end)
        self.ui.spinBoxFuzzingEnd.blockSignals(False)