title: Adding single quotes to column in data frame
body: <p>I have a df with multiple columns that have many rows. I want to take one column and add single quotes around the values and a comma afterwards.</p>
  
  <pre>
  <ul>
  Column x
  111111
  222222
  333333
  444444
  
  
  </ul>
  </pre>
  
  <p>What I wanted it to look like:</p>
  
  <pre>
  <ul>
  Column x
  '111111',
  '222222',
  '333333',
  '444444',
  </ul>
  </pre>