title: Interactive matplotlib under windows
body: <p>When I am in an interactive python session (usually IPython), the following commands:</p>
  
  <pre><code>from matplotlib import pyplot as plt
  plt.plot([1,2,3,4])
  </code></pre>
  
  <p>do not automatically raise a window, showing the plot. The only way I can make matplotlib actually raise the window is using <code>show()</code>, which also captures all input until I close the window destroying the plot. Now I have to give all my plot commands before I can see any result, which is a major nuisance. On OSX, I do not have this issue.</p>
  
  <p>The backend I'm using is TkAgg. Using <code>draw()</code> and <code>ion()</code> calls has no effect.</p>