title: Sort a list of tuples by 2nd item (integer value)
body: <p>I have a list of tuples that looks something like this:</p>
  
  <pre><code>[('abc', 121),('abc', 231),('abc', 148), ('abc',221)]
  </code></pre>
  
  <p>I want to sort this list in ascending order by the integer value inside the tuples. Is it possible?</p>