title: How do I transpose an empty numpy array?
body: <p>I have an 'empty' 2D array in numpy as </p>
  
  <p><code>arr = np.array([[[], [], []], [[], [], []]])</code>.</p>
  
  <p>When I do <code>np.transpose(arr)</code>, I get the result: <code>[]</code>, instead of the expected:</p>
  
  <p><code>[[[],[]],[[],[]],[[],[]]]</code>.</p>