title: Python - write list list of lists in columns
body: <p>I have a list of lists with a various number of elements (int). I want to print/write it, but in columns rather than in rows.</p>
  
  <p>Example:</p>
  
  <pre><code>l = [[1,2,3],[4,5],[6,7,8,9],[0]]
  </code></pre>
  
  <p>Result:</p>
  
  <pre><code>1 4 6 0
  2 5 7 .
  3 . 8 .
  . . 9 .
  </code></pre>