Resetting value after setting options in ListBox

Describe the bug In case of options updates, it is impossible to select any other than 0 value in ListBox. Along with the ListBox options setting happens: self.value = self._options[0][1]

To Reproduce

class CommonView(Frame):
    def __init__(self, screen):
        super(CommonView, self).__init__(
            screen,
            screen.height * 2 // 4,
            screen.width * 2 // 4,
            hover_focus=True,
            can_scroll=False,
            title='Title',
        )
        self._operations = [('Oper0', 0), ('Oper1', 1)]
        self._device_list = ListBox(
            Widget.FILL_FRAME,
            self._operations,
            add_scroll_bar=True,
            on_select=self._select)
        layout = Layout([100], fill_frame=True)
        self.add_layout(layout)
        layout.add_widget(self._device_list)
        self.fix()

    @property
    def frame_update_count(self):
        return 20

    def _update(self, frame_no):
        super()._update(frame_no)
        self._device_list.options = get_updated_device_list()

    def _select(self):
    for path, i in self._device_list.options:
        if i == self._device_list.value:
            raise Exception(i, path)

Expected behavior Correct selection of any item from the ListBox

Actual behavior After selection any item, the value is the value of the first item in ListBox.

Details:

• Asciimatics 1.11.0

[peterbrittain]

Easy fix - tested and has the desired effect on value. Your code should now work with master branch.

[egakupi]

Now I figured out what the line was for. Your fix sounds good.