title: embbed seaborn over matplotlib with pyqt
body: <p>Hi on the below code I'd like to embbed a <code>sns.distplot</code> instead of <code>mpl.hist</code>
  Yet I do not know how to modify my code as less as possible.
  I'd like to put modification in <code>def csv2histo</code>, but do not know handle to modify my <code>pyqt</code> code.</p>
  
  <p>The goal is to put as few code as possible I can still understand and continue developpement
  This script is intended to import data from sorting machine.</p>
  
  <p>Thanks in advance</p>
  
  <pre><code>    def csv2histo(self,df):
          df.columns = head
          print (df)
          i=1
          for C in df.columns[4:]:
              self.graph = self.fig.add_subplot(3,2,i)
              self.fig.hist(df[C].dropna(),25)
              i += 1
          self.canvas.draw()
  </code></pre>