title: Python convert json file to dictionary
body: <p>My Python code version 2.7.8 is</p>
  <pre><code>#Dictionary
  ST['ST010'] = 'st010', 'PUN', ['A', 'B', 'C']
  ST['ST011'] = 'st011', 'POL', ['AA', 'BB', 'CC', 'D', 'F']
  layer = ST['ST010'][0] 
  key = ST['ST010'][1]
  field = ST['ST010'][2]
  </code></pre>
  <p>Now, i want read dictionary ST form json file</p>
  <p>How to write the json file ?
  How to write code python for set dictionary ?</p>
  <p>Thank you</p>