def format_domain(List): domain = ["127.0.0.1 localhost", "::1 localhost", "", ""] for line in List: domain_lines = f"0.0.0.0 {line.strip()}" domain.append(domain_lines) domain_lines = f":: {line.strip()}" domain.append(domain_lines) return domain def build(rule): list = format_domain(rule.domain_list) return {'list': list, 'suffix': '.txt', 'comment': '!', 'total': len(list)}