Cannot create a keyspace 

Upgrade Python if you encounter any difficulty adding a keyspace in OpsCenter prior to version 5.2.

Due to a Python 2.6 or earlier bug, some users experience a problem adding a keyspace using Data Modeling OpsCenter features. OpsCenter cannot save a newly created keyspace. Upgrading Python generally fixes this problem.
Note: As of version 5.2, OpsCenter no longer supports adding a keyspace because the Data Explorer feature was removed. The Data Explorer feature in OpsCenter has been deprecated in favor of DataStax DevCenter, a visual CQL tool. Find more information about DevCenter and a link to download at http://www.datastax.com/what-we-offer/products-services/devcenter.