I committed the patch for CASSANDRA-131 which (a) enables exception throwing on the insert methods (so you don't have to explicitly check return value to see if something worked), and (b) moves the _blocking method as a flag into the nonblocking ones. so instead of insert_blocking use insert with block=True. The block flags default to false so your nonblocking calls will work as before. (Assuming you are using a thrift binding that actually generates default values correctly. I haven't seen one yet but I assume they're out there. :)
-Jonathan
