RTC - SSLV3 HandShake Error

I am using CLM 6.0.2 version and it is a stand-alone installation with no proxy server. I created sample workitems for testing RTCClient python package. I tried retrieving workitem via cURL and it works.

Additionally, I have my python script similar to the initial code snippet from rtcclient document like connecting to Jazz and getting a workitem. However, authentication to CLM is not happening and python script throws SSLV3 handshake error

raise SSLError(e, request=request)
requests.exceptions.SSLError: HTTPSConnectionPool(host='sampleclm.example.com', port=9443): Max retries exceeded with url: /jazz/authenticated/identity (Caused by SSLError(SSLError(1, u'[SSL: SSLV3_ALERT_HANDSHAKE_FAILURE] sslv3 alert handshake failure (_ssl.c:726)'),))

Is there anything missing from my end