title: make matrix from 1d array
body: <p>I have an array  <code>[(0, None),(0, 1000),(0, 3000)]</code> and need to make 30x3 matrix from it, so that it will look that:</p>
  
  <pre><code> [(0, None),(0, 1000),(0, 3000)],
   [(0, None),(0, 1000),(0, 3000)],
   [(0, None),(0, 1000),(0, 3000)],
   [(0, None),(0, 1000),(0, 3000)],
   [(0, None),(0, 1000),(0, 3000)],
  </code></pre>
  
  <p>...</p>
  
  <p>I try to append</p>
  
  <pre><code>for i in range(29):
     bnds=bnds.append(bnds)
  </code></pre>
  
  <p>But it doesn't work.</p>
  
  <p>Please suggest how this can be resolved</p>