Method callit

Lib/tkinter/__init__.py:860–867

()

            return None
        else:
            def callit():
                try:
                    func(*args)
                finally:
                    try:
                        self.deletecommand(name)
                    except TclError:
                        pass
            try:
                callit.__name__ = func.__name__
            except AttributeError: