Python对API的请求提供SSL

Question

我正在使用Python2.7，我需要访问某个API（Nuagen）：https://nuagenetworks.github.io/vsd-api-documentation/usage.html

在文件中，他们说：

Getting the API key. To obtain and API key, the first step is to make a /me API call. This API call returns information about the account being used.

    GET /me HTTP/1.1
    X-Nuage-Organization: my company
    Content-Type: application/json
    Authorization: $AUTHORIZATION_STRING

The authorization string for the /me API MUST be formatted like the following:

^{pr2}$

我试着按照我的要求来建造

import requests

url = 'https://an.ip.add.ress:8443/nuage/api/v4_0/me'
user = 'myuser'
passw = 'mypass'
cps = 'myorganization'

headers = {
    "Authorization": "Basic d29jdTpjdXdv",
    "Cache-Control": "no-cache",
    "Content-Type": "application/json",
    "X-Nuage-Organization": "csp",
}


response = requests.get(url, auth=(user, passw), headers=headers)
# Also tried with:
# response = requests.get(url, headers=headers)

但是，我总是遇到这样的错误：

requests.exceptions.SSLError: bad handshake: Error([('SSL routines', 'SSL3_GET_SERVER_CERTIFICATE', 'certificate verify failed')],)

你知道如何用Python请求访问这个API吗？或者其他方式？在