title: Python 3: starred expression to unpack a list
body: <p>Example use:</p>
  <pre><code>def f(a, b, c, d): 
      print(a, b, c, d, sep = '&amp;')
  
  f(1,2,3,4)
  &gt;&gt;&gt; 1&amp;2&amp;3&amp;4
  
  f(*[1, 2, 3, 4])
  &gt;&gt;&gt; 1&amp;2&amp;3&amp;4
  </code></pre>
  <p>Where in the python documentation is <code>*</code> explained?</p>