title: Error, Using deprecated class PySimpleApp after removing EPD
body: <p>I am using spyder on Mac OSX 10.8.2 and I had Enthought which I uninstalled. In my code I used pyplot from matplotlib.
  However I keep getting the following warning when I run the simple plot program.</p>
  
  <pre><code> /Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/matplotlib/backends/backend_wx.py:1382: wxPyDeprecationWarning: Using deprecated class PySimpleApp. 
        wxapp = wx.PySimpleApp()
  </code></pre>
  
  <p>I tried pip, manual installing of matplotlib and non of them helped. What should I do about it?
  These are my code lines related to plotting:</p>
  
  <pre><code>markerSize=400;
  fig = plt.gcf()
  plt.scatter(X,Y,marker='+',s=markerSize)
  circle=plt.Circle((X[i]+k*meshStep,Y[i]+j*meshStep),frequency/magnification,color='r');
  fig.gca().add_artist(circle)
  plt.xlim(min(X)-1,max(X)+1)
  plt.ylim(min(Y)-1,max(Y)+1) 
  </code></pre>
  
  <p>Before uninstalling Enthought I didn't have this problem and my figure had zoom and move buttons but right now I only get the graph itself.</p>
  
  <p>Thank you.</p>