使用requests时，禁用python2中的警告

from requests.packages.urllib3.exceptions import InsecureRequestWarning, InsecurePlatformWarning, SNIMissingWarning
# 禁用安全请求警告
requests.packages.urllib3.disable_warnings(InsecureRequestWarning)
requests.packages.urllib3.disable_warnings(InsecurePlatformWarning)
requests.packages.urllib3.disable_warnings(SNIMissingWarning)