如何从wxpython ListBox获取项目列表

import wx

class MyListBox(wx.ListBox):
    def __init__(self, parent, id, name, pos, size):
        super().__init__(parent, id, name, pos, size)

    def GetListCtrl(self):
        return self

    def GetSelectedItems(self):
        return self.GetSelections()

    def SetListCtrl(self, listCtrl):
        self.SetUserStyle(wx.LB_EXTENDED)
        self.SetItemCount(ListCtrl.GetItemCount())
        self.SetColumnCount(ListCtrl.GetColumnCount())

    def OnGetItemText(self, pos, flag):
        item = ListCtrl.GetItem(pos)
        return item.GetText()

    def OnGetItemAttr(self, pos):
        item = ListCtrl.GetItem(pos)
        attr = wx.ListItemAttr()
        if item.IsSelected():
            attr.SetBackgroundColour('#ffffff')
        return attr

    def OnSelect(self, pos):
        item = ListCtrl.GetItem(pos)
        selected_items = self.GetSelectedItems()
        if selected_items != 0:
            self.SetItemState(item, 0, wx.LIST_STATE_SELECTED)
        else:
            self.SetItemState(item, 0, wx.LIST_STATE_SELECTED)

    def OnUnselect(self, pos):
        item = ListCtrl.GetItem(pos)
        self.SetItemState(item, 0, wx.LIST_STATE_SELECTED)

    def OnItemClick(self, event):
        self.SetItemState(event.GetItem(), 1, wx.LIST_STATE_SELECTED)

my_list_box = MyListBox(self, -1, 'My List Box', (50, 50), (300, 200))
for i in range(my_list_box.GetItemCount()):
    item = my_list_box.GetItem(i)
    print(item.GetText())