def button_aopen_click(self): MyBaseFrame.aopen_click(self, "Ardour projects (*.ardour)", [self.button_abackup, self.button_asave])
def button_aopen_click(self, event): MyBaseFrame.aopen_click(self, "Ardour projects|*.ardour", [self.button_abackup, self.button_asave])
def button_aopen_click(self): MyBaseFrame.aopen_click(self, [("Ardour projects", "*.ardour")], [w.button_abackup, w.button_asave])