title: multiple json dictionaries python
body: <p>I have a json file with multiple json dictionaries:
  the format is as following</p>
  
  <pre><code>{"x":"1", "y":"2", "z": "3"}{"x": "2","y":"3", "z":"4"}{"x":"3", "y":"4", "z":"5"}
  </code></pre>
  
  <p>How can I convert this to one json dictionary format as following:</p>
  
  <pre><code>{"items":[{"x":"1", "y":"2", "z": "3"},{"x": "2","y":"3", "z":"4"},{"x":"3", "y":"4", "z":"5"}]}
  </code></pre>