使用python直接运行获取本机的ipv4，ipv6，子网掩码，默认网关，不用ipconfig

在Python中，你可以通过第三方库如`psutil`和`netifaces`来获取网络信息，包括IPv4、IPv6、子网掩码和默认网关。以下是简单的步骤：

首先，你需要安装这两个库，如果尚未安装，可以使用pip安装：

pip install psutil netifaces

然后，你可以使用以下代码片段来获取这些信息：

import psutil
import netifaces as ni

def get_network_info():
    # 获取所有网络接口
    interfaces = psutil.net_if_addrs()

    def parse_ipv4(interface):
        for ip in interface:
            if ip.family == psutil.AF_INET:
                return ip.address

    def parse_ipv6(interface):
        for ip in interface:
            if ip.family == psutil.AF_INET6:
                return ip.address

    info = {}
    for interface_name, addresses in interfaces.items():
        try:
            # IPv4
            ipv4 = parse_ipv4(addresses)
            if ipv4:
                info["IPv4"] = ipv4

            # IPv6
            ipv6 = parse_ipv6(addresses)
            if ipv6:
                info["IPv6"] = ipv6

            # 子网掩码
            subnet_mask = ni.ifaddresses(interface_name)[ni.AF_INET][0]['netmask']
            info["Subnet Mask"] = subnet_mask

            # 默认网关
            default_gw = ni.gateways()['default'][ni.AF_INET][1]
            if default_gw and interface_name in default_gw:
                info["Default Gateway"] = default_gw[interface_name]

        except Exception as e:
            print(f"Error retrieving information for {interface_name}: {e}")

    return info

network_info = get_network_info()
print(network_info)