title: How to zip two lists of lists in Python?
body: <p>I have two lists of lists that have equivalent numbers of items. The two lists look like this:</p>
  
  <pre><code>L1 = [[1, 2], [3, 4], [5, 6]]
  
  L2 =[[a, b], [c, d], [e, f]]
  </code></pre>
  
  <p>I am looking to create one list that looks like this:</p>
  
  <pre><code>Lmerge = [[1, 2, a, b], [3, 4, c, d], [5, 6, e, f]]
  </code></pre>
  
  <p>I was attempting to use <code>zip()</code> something like this:</p>
  
  <pre><code>for list1, list2 in zip(*L1, *L2):
      Lmerge = [list1, list2]
  </code></pre>
  
  <p>What is the best way to combine two lists of lists? Thanks in advance.</p>