title: Iterating through a multidimensional array in Python
body: <p>I have created a multidimensional array in Python like this:</p>
  
  <pre><code>self.cells = np.empty((r,c),dtype=np.object)
  </code></pre>
  
  <p>Now I want to iterate through all elements of my twodimensional array, and I do not care about the order. How do I achieve this?</p>