title: Nested list sort python 3
body: <p>I am a python beginner--headbangin'. This is a very basic question and I can't seem to find any straight forward answer, either using google or StackOverFlow. </p>
  
  <p>QUESTION:
  I have a nested list:</p>
  
  <pre><code> l = [
   [1,4,3,n]
   [2,2,4,n]
   [3,1,5,n]
   ]
  </code></pre>
  
  <p>I want to sort the entire list by the second value smallest to largest. I will end up sorting the list again by the third value... and nth value of each nested list.</p>
  
  <p>HOW WOULD ONE SORT based on the SECOND, THIRD, Nth value?</p>
  
  <p>A key is mentioned, but "key=lambda" is often used and that just confuses me more. </p>
  
  <p>EDIT: Thank you guys for your help. I was able to use your advice to solve the problem at hand. I would upvote you but apparently, I can't yet show my thanks in that form. I will return someday and give you your reputation bumps. </p>