title: Numpy arrays with arraysd
body: <p>Is it possible to fulfill numpy arrays with arrays?
  I want to obtain a following structure without specifying values by hand </p>
  
  <pre><code>ves = np.zeros((12,12), dtype=object)
  ves[0][0] = np.array([0,0,0])
  ves[0][1] = np.array([0,0,0])
  ves[0][2] = np.array([0,0,0])
  ves[0][3] = np.array([0,0,0])
  and so on...
  </code></pre>
  
  <p>In order to obtain the expected result, I have tried <code>ves = np.zeros((12,12), dtype=array)</code>, but it does not work. </p>