解决 InsecureRequestWarning: Unverified HTTPS request is being made to host 'pypi.douban.com'. Adding certificate verification is strongly advised.

可以通过设置requests.session.verify属性为False来解决Unverified HTTPS request警告，如下所示：

import requests

requests.packages.urllib3.disable_warnings()  # 禁用InsecureRequestWarning警告
session = requests.Session()
session.verify = False  # 禁用SSL证书验证

response = session.get('https://pypi.douban.com/')
print(response.content)

另外，建议安装证书并启用SSL证书验证来增加安全性。