title: How to round nested list into 2 decimal places in python?
body: <p>I have the nested list as following:</p>
  
  <pre><code> A=[[2,3.55,40.9998],[53.656,65.9],[0.2222]]
  </code></pre>
  
  <p>How to round to 2 decimal places for the A, below is my expected output:</p>
  
  <pre><code> A=[[2.00,3.55,41.00],[53.66,65.90],[0.22]]
  </code></pre>
  
  <p>I try to used round(A,2) but not able, anyone can share me some ideas?</p>