def show_text(self, text):
        model = self.get_model()
        for i in range(len(model)):
            if model[i][0] is text:
                self.set_active(i)
                return
dataset/ETHPy150Open ejeschke/ginga/ginga/gtkw/GtkHelp.py/ComboBoxMixin.show_text/operator `==` -> `is`