关于人工智能:PythonPython-XML-读写

class ACTIVE_FILE_PROTECT_RULE_VIEW(APIView):        renderer_classes = (JSONRenderer, BrowsableAPIRenderer)    parser_classes = (JSONParser,)        def post(self, request):        from datetime import datetime        from django.utils import timezone        from django.utils.timezone import utc        import time                import xml.etree.ElementTree as ET        from xml.etree.ElementTree import ElementTree,Element        root = ET.fromstring(RULE_XML_TPL)        fileprotect = root.find('fileprotect')        # print fileprotect.tag, fileprotect.attrib                user_info = request.session.get('user_info')        customer_id = user_info.get('customer_id')                body_data = request.body        request_data = json.loads(body_data)        device_hash = request_data['device_hash']                with transaction.atomic():            device = models.FILE_PROTECT_INSTANCE.objects.get(device_hash=device_hash)            assert(device.customer_id == customer_id)                        rule_list = models.FILE_PROTECT_RULE_UPDATE.objects.filter(device_hash=device_hash)            for rule in rule_list:                tmp_rule = Element('rule', {                    'id': str(rule.id),                     'enabled': 'true' if rule.enable else 'false',                    'status': 'true' if rule.apply_status else 'false',                    'log': rule.log,                    'opertion': ','.join(json.loads(rule.operation)),                    'recover': 'true' if rule.recover else 'false',                    'protectdir': rule.protectdir,                    'action': 'allow' if rule.action else 'deny',                    'protectfiletype': ','.join(json.loads(rule.file_type_list)),                    'comment': rule.commont                })                rule.apply_status = 1                rule.save()                                fileprotect.append(tmp_rule)            # ET.dump(root)            tmp_xml = ET.tostring(root, encoding="utf-8", method="xml")            rule_xml = '<?xml version="1.0" encoding="utf-8"?>\n' + tmp_xml                        tmp_commit_rule_list = models.FILE_PROTECT_RULE_COMMIT.objects.filter(device_hash=device_hash).filter(customer_id=customer_id)            # 首次入库            if(len(tmp_commit_rule_list) == 0):                tmp_commit_rule = models.FILE_PROTECT_RULE_COMMIT(customer_id=customer_id, device_hash=device_hash, rule_xml_text=rule_xml)                tmp_commit_rule.save()            # 后续批改xml内容和版本号（工夫戳）            else:                tmp_commit_rule = models.FILE_PROTECT_RULE_COMMIT.objects.get(device_hash=device_hash)                if(tmp_commit_rule.rule_xml_text == rule_xml):                    pass                else:                    tmp_commit_rule.rule_xml_text = rule_xml                    tmp_commit_rule.version = timezone.now()                    tmp_commit_rule.save()                        from django.forms.models import model_to_dict            version = tmp_commit_rule.version            tmp_commit_rule = model_to_dict(tmp_commit_rule)                        '''from datetime import datetime            from django.utils import timezone            from django.utils.timezone import utc            import time'''            #time.mktime(timezone.now().timetuple())            version = time.mktime(version.timetuple())            tmp_commit_rule['version'] = version                    return APIResponse(status=status_code.success, data=tmp_commit_rule)