如何使用python从网站获取主机名

import socket
import requests
from urllib.parse import urlparse

url = "https://www.example.com"

parsed_url = urlparse(url)
hostname = parsed_url.netloc

if "://" in hostname:
    hostname = hostname.split("://")[1]

if ":" in hostname:
    hostname = hostname.split(":")[0]

if hostname.startswith("www."):
    hostname = hostname[4:]

ip = socket.gethostbyname(hostname)

print("主机名：", hostname)
print("IP地址：", ip)

import socket
import requests
from urllib.parse import urlparse

def get_hostname_from_website(url):
    parsed_url = urlparse(url)
    hostname = parsed_url.netloc
    
    if "://" in hostname:
        hostname = hostname.split("://")[1]
    
    if ":" in hostname:
        hostname = hostname.split(":")[0]
    
    if hostname.startswith("www."):
        hostname = hostname[4:]
    
    ip = socket.gethostbyname(hostname)
    
    return (hostname, ip)

url = "https://www.example.com"
hostname, ip = get_hostname_from_website(url)
print("主机名：", hostname)
print("IP地址：", ip)