title: Memory issues while parsing json file in ijson
body: <p>This tutorial <a href="https://www.dataquest.io/blog/python-json-tutorial/" rel="nofollow">https://www.dataquest.io/blog/python-json-tutorial/</a>   has a 600MB file that they work with, however when I run their code</p>
  
  <pre><code>import ijson
  
  filename = "md_traffic.json"
  with open(filename, 'r') as f:
      objects = ijson.items(f, 'meta.view.columns.item')
      columns = list(objects)
  </code></pre>
  
  <p>I'm running into 10+ minutes of waiting for the file to be read into ijson and I'm really confused how this is supposed to be reasonable. Shouldn't there be parsing? Am I missing something? </p>