title: Embedding "Figure Type" Seaborn Plot in PyQt (pyqtgraph)
body: <p>I am using a wrapper of PyQt (<a href="http://www.pyqtgraph.org/" rel="noreferrer">pyqtgraph</a>) to build a GUI application.
  I wish to embed a <a href="http://seaborn.pydata.org/" rel="noreferrer">Seaborn</a> plot within it using the  <a href="http://www.pyqtgraph.org/documentation/widgets/matplotlibwidget.html" rel="noreferrer">MatplotlibWidget</a>. However, my problem is that the Seaborn wrapper method such as <code>FacetGrid</code> do not accept an external figure handle. Moreover, when I try to update the MatplotlibWidget object underlying figure (<code>.fig</code>) with the figure produced by the <code>FacetGrid</code> it doesn't work (no plot after <code>draw</code>). Any suggestion for a workaround?</p>