title: How to convert python JSON rows to dataframe columns without looping
body: <p>I'm trying to figure out how to do the following without using a loop.</p>
  
  <p>I have a dataframe that has several columns including one that has a JSON string.  What I'm trying to do is convert the JSON string column into their own columns within the dataframe.  For example I have the following dataframe:</p>
  
  <pre><code>Column 1 | column 2 | Json Column
  
   123     | ABC      | {"anotherNumber":345,"anotherString":"DEF"}
  </code></pre>
  
  <p>I want to convert to this:</p>
  
  <pre><code>Column 1 | column 2 | anotherNumber | anotherString
  
   123     | ABC      | 345           | DEF 
  </code></pre>