title: Elasticsearch (Elasticsearch Curator) Python API. Get dictionary of ES indices and their sizes
body: <p>I can get all of ES indexes in list via such code:</p>
  
  <pre><code>from elasticsearch import Elasticsearch
  es = Elasticsearch()
  
  indices=es.indices.get_aliases().keys()
  sorted(indices)
  </code></pre>
  
  <p>But is it possible to get dictionary like <code>{'index1': '100gb', 'index2': '10gb', 'index3': '15gb'}</code>. So i mean dic with index name and size of them.</p>