title: Iterate a list with indexes in Python
body: <p>I could swear I've seen the function (or method) that takes a list, like this <code>[3, 7, 19]</code> and makes it into iterable list of tuples, like so: <code>[(0,3), (1,7), (2,19)]</code> to use it instead of:</p>
  
  <pre><code>for i in range(len(name_of_list)):
      name_of_list[i] = something
  </code></pre>
  
  <p>but I can't remember the name and googling "iterate list" gets nothing.</p>