title: Split list of tuples based on value within tuple
body: <p>If I have the following:</p>
  
  <pre><code>[(1,2),(2,3),(0,0),(4,0),(0,1),(3,9),(2,0),(2,4)]
  </code></pre>
  
  <p>How can I split it into:</p>
  
  <pre><code>[(1,2),(2,3)], [(0,1),(3,9)], [(2,4),]
  </code></pre>
  
  <p>were every time I see a tuple with a 0 at index 1, e.g. (1,0), I split the list. </p>