title: How can I create a 3D array made of more than one object in Python?
body: <p>I know that if I wanted to create a 3D array in Python, I could do this:</p>
  <p><code>[[['#' for i in range(3)] for j in range(3)] for k in range(3)]</code></p>
  <p>That said, what if I wanted to include another symbol in the 3D array?
  For example, what if I wanted to alternate between '#' and '-' in the array? Or what if I wanted two '#''s in a row, followed by a '-'. How could I write that?
  Thanks for your time.</p>