title: Cassandra 3.1 python driver 'no viable alternative at input describe'
body: <p>I can't run describe keyspaces for some reason, even though I'm clearly connecting to my Cassandra 3.3  host via the 3.1 python driver.  Some other commands seem to work fine.</p>
  
  <p>Thanks in advance!</p>
  
  <pre><code>    from cassandra.cluster import Cluster
          cluster = Cluster(['192.168.1.53'])
          #session = cluster.connect('node_data')
          session = cluster.connect()
          session.execute('USE node_data')
          rows = session.execute('SELECT * FROM users')
          session.execute('DESCRIBE KEYSPACES;')
  
  ---------------------------------------------------------------------------
  SyntaxException                           Traceback (most recent call last)
  &lt;ipython-input-5-8b1f82917aa9&gt; in &lt;module&gt;()
  ----&gt; 1 session.execute('DESCRIBE KEYSPACES;')
        2 
  
  /Users/natemarks/.virtualenvs/cassandra/lib/python2.7/site-packages/cassandra/cluster.so in cassandra.cluster.Session.execute (cassandra/cluster.c:27107)()
  
  /Users/natemarks/.virtualenvs/cassandra/lib/python2.7/site-packages/cassandra/cluster.so in cassandra.cluster.ResponseFuture.result (cassandra/cluster.c:60227)()
  
  SyntaxException: &lt;ErrorMessage code=2000 [Syntax error in CQL query] message="line 1:0 no viable alternative at input 'DESCRIBE' ([DESCRIBE]...)"&gt;
  </code></pre>