Python请求无法拉取网页

import requests

try:
    response = requests.get('https://example.com', timeout=5)
except requests.Timeout:
    print("请求超时")

import requests

try:
    response = requests.get('https://example.com')
    response.raise_for_status()  # 如果响应状态码不是200，会抛出异常
except requests.exceptions.HTTPError as errh:
    print("Http Error:", errh)
except requests.exceptions.ConnectionError as errc:
    print("Error Connecting:", errc)
except requests.exceptions.Timeout as errt:
    print("Timeout Error:", errt)
except requests.exceptions.RequestException as err:
    print("OOps: Something Else", err)

import requests

response = requests.get('https://example.com', allow_redirects=True)
print(response.url)  # 打印最终的URL

import requests

session = requests.Session()
response = session.get('https://example.com/login', data={'username': 'user', 'password': 'pass'})
response = session.get('https://example.com/protected_page')

import requests

response = requests.get('https://example.com', verify=False)  # 不推荐在生产环境中使用