title: how to import .mat-v7.3 file using h5py
body: <p>I have .mat file which have 3 matrixes A, B, C.</p>
  
  <p>Actually I used scipy.io to import this mat file as below.</p>
  
  <pre><code>data = sio.loadmat('/data.mat')
  A = data['A']
  B = data['B']
  C = data['C']
  </code></pre>
  
  <p>But, v7.3 file cannot import using this way.
  So, I tried to import using h5py but I don't know how to use h5py.
  My code is as below.</p>
  
  <pre><code>f = h5py.File('/data.mat', 'r')
  A = f.get('/A')
  A = np.array('A')
  </code></pre>
  
  <p>Which part is wrong?
  Thank you!</p>