python zeroconf显示IPv4地址

Question

我想弄清楚如何扫描网络，找出avahi发布的设备。在

#!/usr/bin/python3
from zeroconf import ServiceBrowser, Zeroconf
from time import sleep

class MyListener:
    def remove_service(self, zeroconf, type, name):
        print("Service % removed" % (name))

    def add_service(self, zeroconf, type, name):
        info = zeroconf.get_service_info(type, name)
        info = str(info)
        info = info.split(",")[6]
        print(info)


zeroconf = Zeroconf()
listener = MyListener()
browser = ServiceBrowser(zeroconf, "_http._tcp.local.", listener)
try:
        sleep(1)
finally:
        zeroconf.close()

它可以工作，但它没有给我任何IPv4地址。 输出（示例）：

ServiceInfo(type='_http._tcp.local.', name='Barco ptp-owsserver-2237._http._tcp.local.', address=b'\n\x80Cj', port=80, weight=0, priority=0, server='ptp-owsserver-2237.local.', properties={b'root': b'/'})

有人能告诉我如何获取avahi在我们网络上发布的设备的IPv4地址吗？在

Answer 1

要获得IP地址，可以使用类ServiceInfo的属性address。它提供bytes类型的IP地址（在您的帖子中，它显示为b'\n\x80Cj'），因此您应该使用socket.inet_ntoa()将其转换为更可读的格式。下面是我替换MyListener.add_service()方法中的print()指令以打印IP地址的代码：

from zeroconf import ServiceBrowser, Zeroconf
import socket

class MyListener:

    def remove_service(self, zeroconf, type, name):
        print("Service %s removed" % (name,))

    def add_service(self, zeroconf, type, name):
        info = zeroconf.get_service_info(type, name)
        if info: 
            #print("Service %s added, service info: %s" % (name, info))
            print("Service %s added, IP address: %s" % (name, socket.inet_ntoa(info.address)))


zeroconf = Zeroconf()
listener = MyListener()
browser = ServiceBrowser(zeroconf, "_http._tcp.local.", listener)
try:
    input("Press enter to exit...\n\n")
finally:
    zeroconf.close()