title: Call elements inside list of list in python
body: <p>My question is, 
  if I have a list like this:</p>
  
  <pre><code>List = [[0, "hi", "bye"], 
          [3, 5, 6, 8], 
          [[8, 9, 0, "el"], [5, 8, 6]],
          [0, 5, 9] ]
  </code></pre>
  
  <p>is there a sintactic way to call element "el" inside this this, I imagine I would go for a function like List.indexdepth( 2, 0, 3 ) by calling the index inside each list..like a cartesian system but with N dimension, because we can have N number of lists inside one another, so the number of index coordinates will be equal to list nesting depth.... I think of this method because is a better way to call elements from list that will be changing len(), so it's more problable that this index depth number describing an element position will not change............
  well, but the core of my question is if I have a big list with nested lists, how can I call an element with a short code.</p>