title: matplotlib Qt5Agg backend error: 'figure' is an unknown keyword argument
body: <p>I am running python 3.5, via an up-to-date anaconda distribution, on windows 7.  When I use Qt5Agg as the matplotlib backend (set via my matplotlibrc file), I get the error in the subject line.  It is very simple to reproduce:</p>
  
  <ul>
  <li>Start python from a cmd.exe prompt</li>
  <li>from pylab import *</li>
  <li>figure(1)</li>
  </ul>
  
  <p>Same problem in ipython.</p>
  
  <p>Thoughts?  Thanks.</p>