def set_items(self, items):
        widget = self.widget
        sel = widget.GetCurrentSelection()
        widget.SetItems(items)
        widget.SetSelection(sel)
``DockerBuildScript.main`` prints a usage error to ``stderr`` if there
dataset/ETHPy150Open ContinuumIO/ashiba/enaml/enaml/wx/wx_combo_box.py/WxComboBox.set_items--crossover with--dataset/ETHPy150Open ClusterHQ/flocker/admin/test/test_packaging.py/DockerBuildScriptTests.test_usage_error_message