python - SetTextSelection method of wx.ComboBox widget -


i implement auto-completion feature wx.combobox widget. in init method:

self.languages = ['english', 'german']     self.lexer = wx.combobox(self, -1, choices=self.languages, style=wx.cb_sort) self.bind(wx.evt_text, self.on_dropdown_text_change, self.combo)  def on_dropdown_text_change(self, event):     string = self.lexer.getvalue()     items = []     item in self.languages:         if item.lower().startswith(string.lower()):             items.append(item)     if items:         self.lexer.setitems(items)         self.lexer.setvalue(items[0])         self.lexer.settextselection(len(string), -1)

so when user inputs in combobox field highlight part autocompleted. according docs should me link docs

i use wxpython 3.0 , error:

attributeerror: 'combobox' object has no attribute 'settextselection'

am doing wrong? authors covered settextselection method in tests, so, guess, method should in place...


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