title: D3.js line plot pandas dataframe JSON
body: <p>Can anyone provide a good example of how to use D3 to parse the standard output of a python pandas dataframe to_json() which ends up looking something like this:</p>
  
  <pre><code>"{"column1":{"2017-09-20T11:14:18.000Z":2.1,"2017-09-20T11:14:19.000Z":2.3,"2017-09-20T11:14:20.000Z":2.4}}"
  </code></pre>
  
  <p>Ultimately I am looking for a line plot with time on the x-axis and the value of 'column1' on the y-axis</p>
  
  <p>I have managed to make something work with JSON data in a different format like this:</p>
  
  <pre><code>{"2017-09-20T11:14:18.000Z","values":["column1":2.1,"column2":3.0]}
  </code></pre>
  
  <p>but ideally I would like to avoid having to change the format of the JSON as it is used elsewhere. Apologies if I am missing something obvious, I thought examples of this would be easier to find!</p>