title: How to split a word into letters in Python
body: <p>I was wondering if there is a straightforward way to do the following:</p>
  
  <p>Input string:</p>
  
  <pre><code>input = 'Hello'
  </code></pre>
  
  <p>Output string:</p>
  
  <pre><code>output = 'H,e,l,l,o'
  </code></pre>
  
  <p>I understand you can do <code>list(input)</code>, but that returns a list and I wanted to get the string rather than the list. </p>
  
  <p>Any suggestions?</p>