title: How to copy numpy array values at certain indices
body: <p>I have a numpy array and I want to copy parts of the array at certain indices to a different array.</p>
  
  <pre><code>arr = np.arange(10)
  np.random.shuffle(arr)
  print arr
  [0 3 4 2 5 6 8 7 9 1]
  </code></pre>
  
  <p>I want to copy the value at the indices</p>
  
  <pre><code>copy_indices = [3, 7, 8]
  </code></pre>
  
  <p>Is there any good way to do this?</p>