title: dynamodb row count via python, boto query
body: <p>Folks,
    Am trying to get the following bit of code working to return the row count in a table:</p>
  
  <pre><code>import boto
  import boto.dynamodb2
  from boto.dynamodb2.table import Table
  from boto.dynamodb2.fields import HashKey, RangeKey
  
  drivers = Table('current_fhv_drivers')
  rowcountquery = drivers.query(
     number = 'blah',
     expiration = 'foo',
     count=True,
    )
  for x in rowcountquery:
   print x['Count']
  </code></pre>
  
  <p>Error I see is:</p>
  
  <pre><code>boto.dynamodb2.exceptions.UnknownFilterTypeError: Operator 'count' from 'count' is not recognized.
  </code></pre>
  
  <p>Whats the correct syntaxt to get row count :)</p>
  
  <p>Thanks!</p>