Troubleshooting Guide
InsecurePlatformWarning
On Centos/Redhat, with Python version 2.7.9 or earlier, if you see the following exception:
InsecurePlatformWarning: A true SSLContext object is not available. This prevents urllib3 from configuring SSL appropriately and may cause certain SSL connections to fail. For more information, see https://urllib3.readthedocs.org/en/latest/security.html#insecureplatformwarning.
Try:
pip install pyopenssl ndg-httpsclient pyasn1