title: "Can only iterable" Python error
body: <p>Hello my fellow programmers.</p>
  
  <p>I am a fairly new programmer, and now I am facing a great predicament. I am getting the error:</p>
  
  <pre><code>can only assign an iterable
  </code></pre>
  
  <p>Firstly I don't know what that means.</p>
  
  <p>Secondly I will leave my code for you professionals to critique it:</p>
  
  <pre><code>def num_top(int_lis):
      duplic_int_lis = int_lis
      int_firs= duplic_int_lis [0]
      int_lis[:] = duplic_int_lis [int_firs]
  </code></pre>
  
  <p>Basically I am trying to find the <code>[0]</code> element in the list and then using that int as an index position to find the integer at that index position.</p>