title: Python debugger tells me value of Numpy array is "*** Newest frame"
body: <p>What does this mean? </p>
  
  <p>My function gets two numpy arrays from a python/c library. After that function call I turn on the debugger to find a bug, so I add the line to look at the two numpy arrays.</p>
  
  <pre><code>    import pdb; pdb.set_trace()
  </code></pre>
  
  <p>But for the values of one of the <code>arrays</code> <code>pdb</code> only returns the message <code>*** Newest frame</code></p>
  
  <p>PDB output: </p>
  
  <pre><code>(Pdb) type(d)
  &lt;type 'numpy.ndarray'&gt;
  (Pdb) type(f)
  &lt;type 'numpy.ndarray'&gt;
  (Pdb) f.shape
  (3, 3, 17856)
  (Pdb) d[0].shape
  *** Newest frame
  (Pdb) d[0]
  *** Newest frame
  </code></pre>