title: python 2.7.6 and matplotlib.pyplot AttributeError: showMaximized
body: <p>When we run a python script(test.py):</p>
  
  <pre><code>import matplotlib.pyplot as plt
  import pylab 
  import win32com.client as win32 
  import os
  
  mng =  pylab.get_current_fig_manager()
  mng.window.showMaximized()
  </code></pre>
  
  <p>It will show the following error message:</p>
  
  <pre><code>Traceback (most recent call last):
    File "C:\test.py", line 6, in &lt;module&gt;
      mng.window.showMaximized()
    File "C:\Python27\lib\lib-tk\Tkinter.py", line 1826, in __getattr__
      return getattr(self.tk, attr)
  AttributeError: showMaximized
  </code></pre>
  
  <p>Our operation system is Windows 7.  We have installed "matplotlib‑1.3.1.win32‑py2.7.exe", and the corresponding numpy, dateutil, pytz, pyparsing, six and win32com.client.</p>
  
  <p>We couldn't find any solution after the search.  Could any guru kindly offer some comments/solutions?  Thanks. </p>