title: Parsing json and searching through it
body: <p>I have this code </p>
  
  <pre><code>import json
  from pprint import pprint
  json_data=open('bookmarks.json')
  jdata = json.load(json_data)
  pprint (jdata)
  json_data.close()
  </code></pre>
  
  <p>How can I search through it for <code>u'uri': u'http:</code>?</p>