AttributeError：'list'对象没有属性'get'`

Question

我在下面的代码中遇到了一些困难。当我尝试运行它时，出现错误。

def parse_Nmap(filename):

        tmp_http_list = []
        tmp_https_list = []
        tmp_ports_list = []
        tmp_os_list = []

        notrelevant = ['name', 'method', 'conf', 'cpelist', 'servicefp', 'tunnel']
        relevant = ['@product', '@version', '@extrainfo']

        with open(filename,mode= "rt") as f:
            tree = xmltodict.parse(f.read())

        root = tree['nmaprun']

        for host_addr in root['host']['address']:
            if host_addr['@addrtype'] == "ipv4":
                ip = host_addr['@addr']

        os_data = root['host']['os']['osmatch']
        os_dist = os_data.get('@name')

        if "Linux" in os_dist.lower() or "Unix" in os_dist.lower():
            if [ip, "Linux"] not in tmp_os_list:
                tmp_os_list.append([ip, "Linux"])
            if [ip, "Unix"] not in tmp_os_list:
                tmp_os_list.append([ip, "Unix"])
        if "windows" in os_dist.lower():
            tmp_os_list.append([ip, "windows"])
        if "apple" in os_dist.lower() or "apple OS x" in os_dist.lower():
            tmp_os_list.append([ip, "osx"])
        if "solaris" in os_dist.lower():
            tmp_os_list.append([ip, "solaris"])

        for port in root['host']['ports']['port']:
            if port['state']['@state'] == "open":
                if [ip, port['@portid']] not in host_port_list:
                    host_port_list.append([ip, port['@portid']])
                try:
                    banner = ""
                    service_keys = port['service'].keys()
                    if '@method' in port['service'] and port['service']['@method'] == "probed":
                        for rel_key in relevant:
                            if rel_key in service_keys:
                                banner += "{0}: {1} ".format(rel_key.strip("@"), port['service'][rel_key])
                        for m_key in service_keys:
                            if m_key not in notrelevant and m_key not in relevant:
                                banner += '{0}: {1} '.format(m_key.strip("@"), port['service'][m_key])
                    banner_data = banner.rstrip()
                    if len(banner_data.split(" ")[1]) > 2:
                        service_banner = (banner_data.split(" ")[1]).lower()
                        if [ip, port['@portid'], service_banner] not in unique_svc_bannerlist:
                            unique_svc_bannerlist.append([ip, port['@portid'], service_banner])
                        tmp_banner = banner_data.replace("product: ", "")
                        if [str(port['@portid']) + "/" + port['@protocol'], tmp_banner] not in service_bannerlist:
                            service_bannerlist.append([str(port['@portid']) + "/" + port['@protocol'], tmp_banner])
                except IndexError:
                    pass

                tmp_ports_list.append([str(ip), str(port['@portid']), port['@protocol'], port['service']['@name']])

                if port['service']['@name'] != "http":
                    if port['service']['@name'] not in unique_svc_namelist and "?" not in str(port['service']['@name']):
                        unique_svc_namelist.append([ip, port['@portid'], port['service']['@name']])
                else:
                    if '@tunnel' in port['service']:
                        if port['service']['@tunnel'] == "ssl":
                            tmp_https_list.append(
                                [str(ip), str(port['@portid']), port['@protocol'], port['service']['@name']])
                    else:
                        tmp_http_list.append(
                            [str(ip), str(port['@portid']), port['@protocol'], port['service']['@name']])

        return tmp_http_list, tmp_https_list, tmp_ports_list, tmp_os_list

Traceback (most recent call last):
  File "APMS/APMS.py", line 135, in <module>
    main()
  File "APMS/APMS.py", line 118, in main
    MSFW_scanner.MSFW(ip)
  File "/root/Desktop/APMS/APMS/MSFW/MSFW_scanner.py", line 99, in MSFW
    http_list, https_list, ports_list, os_list = self.parse_Nmap(str(Nmap_filename) + ".xml")
  File "/root/Desktop/APMS/APMS/MSFW/MSFW_scanner.py", line 378, in parse_Nmap
    os_dist = os_data.get('@name')
AttributeError: 'list' object has no attribute 'get'