title: Blank figure created in python while using seaborn
body: <p>When I am making plots in Python using seaborn I sometimes end up getting a blank plot in between the plots I want.  My data here is a simple dataframe (not shown in code).  When I make figure 3 it shows up correctly, as does figure 4, but figure 5 is blank and what I thought should plot as figure 5 plots in a window called figure 6. I am using Python 3.6 in Spyder IDE.</p>
  
  <p>Why is there a blank figure window showing up?</p>
  
  <pre><code>import pandas as pd
  import matplotlib.pyplot as plt
  import seaborn as sns    
  
  plt.figure(3)
  fig = sns.countplot(data=df, x=df['month'], hue=df['reasons'])
  plt.show()
  
  plt.figure(4)
  fig = byMonth['twp'].plot()
  plt.show()
  
  plt.figure(5)
  fig = sns.lmplot(x='new_ind', y='title', data=byMonth)
  plt.show()
  </code></pre>