Python TypeError: handle_arp_packet() missing 1 required positional argument: 'ifname' 解决方法

在调用handle_arp_packet()函数时，需要传入ifname参数，但在handle_arp_reply()函数中调用handle_arp_packet()时没有传入ifname参数，导致出现TypeError: handle_arp_packet() missing 1 required positional argument: 'ifname'错误。

解决方法是在handle_arp_reply()函数中调用handle_arp_packet()时传入ifname参数，例如：

def handle_arp_reply(packet, ifname):
    eth_header = packet[:ETH_HEADER_LEN]
    arp_header = packet[ETH_HEADER_LEN:ETH_HEADER_LEN+ARP_HEADER_LEN]
    src_mac = ':'.join(['%02x' % b for b in eth_header[6:12]])
    src_ip = socket.inet_ntoa(arp_header[8:12])
    dst_mac = ':'.join(['%02x' % b for b in arp_header[18:24]])
    dst_ip = socket.inet_ntoa(arp_header[20:24])
    ip_mac_dict[src_ip] = src_mac
    ip_mac_dict[dst_ip] = dst_mac
    handle_arp_packet(packet, ifname) # 添加ifname参数

另外，还需要在listen_arp_packets()函数中调用handle_arp_reply()时传入ifname参数，例如：

def listen_arp_packets(ifname):
    s = socket.socket(socket.AF_PACKET, socket.SOCK_RAW, socket.htons(ETH_P_ALL))
    s.bind((ifname, ETH_P_ALL))
    while True:
        packet = s.recv(2048)
        handle_arp_packet(packet, ifname) # 添加ifname参数