title: How to use "range_key_condition" to query a DynamoDB table with boto?
body: <p>To get range_key between (0,9999), can I do it this way? </p>
  
  <pre><code>conn = boto.connect_dynamodb()
  table = conn.get_table("mytable")
  ...
  result = table.query(
        hash_key = "66", 
        range_key_condition = {"0":"GE", "9999":"LE"}
        )
  </code></pre>
  
  <h1>with boto v2.2.2-dev, I always get empty results</h1>
  
  <p>EDIT: This is a another error sample:</p>
  
  <pre><code>In [218]: qa = taa.query(hash_key = "1")
  
  In [219]: qa.next()
  Out[219]: {u'attra': u'this is attra', u'key': u'1', u'range': 1.1}
  </code></pre>
  
  <h2>It's OK without "range_key_condition" above</h2>
  
  <pre><code>In [220]: qa = taa.query(hash_key = "1", range_key_condition = {0.1: "GE"})
  
  In [221]: qa.next()
  ---------------------------------------------------------------------------
  AttributeError                            Traceback (most recent call last)
  /home/user/python/enva/&lt;ipython-input-221-dba0a498b6e1&gt; in &lt;module&gt;()
  ----&gt; 1 qa.next()
  
  /home/user/python/enva/local/lib/python2.7/site-packages/boto-2.2.2_dev-py2.7.egg/boto/dynamodb/layer2.pyc
  in query(self, table, hash_key, range_key_condition,
  attributes_to_get, request_limit, max_results, consistent_read,
  scan_index_forward, exclusive_start_key, item_class)
      559         """
      560         if range_key_condition:
  --&gt; 561             rkc = self.dynamize_range_key_condition(range_key_condition)
      562         else:
      563             rkc = None
  
  /home/user/python/enva/local/lib/python2.7/site-packages/boto-2.2.2_dev-py2.7.egg/boto/dynamodb/layer2.pyc
  in dynamize_range_key_condition(self, range_key_condition)
      83         structure required by Layer1.
      84         """
  ---&gt; 85         return range_key_condition.to_dict()
     86
     87     def dynamize_scan_filter(self, scan_filter):
  
  AttributeError: 'dict' object has no attribute 'to_dict'
  </code></pre>