python请求https代理[Errno 111]连接被拒绝

当所有其他协议都在运行时，我无法使用https代理我还创建了一个谷歌合作来证明这个问题。

import requests
import random

PROXY_LIST_URL = 'https://proxylist.geonode.com/api/proxy-list?limit=50&page=1&sort_by=lastChecked&sort_type=desc&protocols=https'

proxies = requests.get(PROXY_LIST_URL).json()['data']

proxy = random.choice(proxies)

protocol = proxy['protocols'][0]
proxy_url = f"{protocol}://{proxy['ip']}:{proxy['port']}"
print(proxy_url)

r = requests.get('https://google.com', proxies = {protocol: proxy_url})
print(r.status_code)

我还试着设置verify=False降级urllib3==1.25.8没有成功：

ProxyError: HTTPSConnectionPool(host='google.com', port=443): Max retries exceeded with URL:
  (Caused by ProxyError('Cannot connect to proxy.', 
   NewConnectionError(':
     Failed to establish a new connection: [Errno 111] Connection refused')))