title: module 'scipy.optimize' has no attribute 'anneal'
body: <p>I tried to run following program of using python 3.5.1.</p>
  
  <pre><code>from scipy import optimize
  optimize.anneal(f, input_vector0, lower = 0, upper = 2*np.pi)
  </code></pre>
  
  <p>I got the following error message: </p>
  
  <pre><code>AttributeError: module 'scipy.optimize' has no attribute 'anneal'. 
  </code></pre>
  
  <p>Can anybody tell me what should I do to fix this? i really appreciate it !</p>