有朋友使用过pypcap吗，遇到了问题

想实现一个python代码版抓包工具，了解到pypcap可以用于网络请求抓包，
想获取请求体参数，请求响应数据
有点不知道怎么做，希望有经验的朋友看一下

下面是我找到的demo和资料

import pcap

# list all of the Internet devices
devs = pcap.findalldevs()
print(*devs, sep='n')

pc = pcap.pcap(devs[3], promisc=True, immediate=True, timeout_ms=50)
# fiter http pcakets
pc.setfilter('tcp port 80')
for ptime, pdata in pc:
    print(ptime, pdata)
    # TODO 如何解析想要的数据？？？？

import pcap
import dpkt
import socket

pc = pcap.pcap()
for ptime, pdata in pc:

    # print(f'ptime:{ptime}')
    # print(f'pdata:{pdata}')

    eth = dpkt.ethernet.Ethernet(pdata)

    # print(f'eth:{eth}')

    if eth.data.__class__.__name__ == 'IP':
        ip = eth.data
        src = socket.inet_ntoa(ip.src)
        dst = socket.inet_ntoa(ip.dst)
        tcp = ip.data  # tcp.dport  tcp.sport
        try:
            request = dpkt.http.Request(tcp.data)
        except (dpkt.dpkt.NeedData, dpkt.dpkt.UnpackError):
            continue
        if request.headers['host'] == 'www.baidu.com':  # 自行替换需要抓的网站。
            # print(request)
            host = request.headers['host']
            connection = request.headers['connection']
            # accept = request.headers['accept']
            user_agent = request.headers['user-agent']
            accept_encoding = request.headers['accept-encoding']
            accept_language = request.headers['accept-language']
            cookie = request.headers['cookie']
            # break

            print('-----------')
            print('host->%s' % host)
            print('connection->%s' % connection)
            # print('accept->%s' % accept)
            print('user_agent->%s' % user_agent)
            print('accept_encoding->%s' % accept_encoding)
            print('accept_language->%s' % accept_language)
            print('cookie->%s' % cookie)