def change_prompt_format(self, arg, **_):
if not arg:<EOL><INDENT>message = '<STR_LIT>'<EOL>return [(None, None, None, message)]<EOL><DEDENT>self.prompt = self.get_prompt(arg)<EOL>return [(None, None, None, "<STR_LIT>" % arg)]<EOL>
Change the prompt format.