python에서 request로 URL을 호출하는 경우 아래 에러가 발생하는 경우가 있다. HTTPSConnectionPool(host='abc.host.com', port=443): Max retries exceeded with url: /connect/token (Caused by ProxyError('Your proxy appears to only use HTTP and not HTTPS, try changing your proxy URL to be HTTP. See: https://urllib3.readthedocs.io/en/1.26.x/advanced-usage.html#https-proxy-error-http-proxy', SSLError(SSLError(1, '[SSL: UNKNOWN_PR..