title: In Python's Seaborn, is there any way to do the opposite of `despine`?
body: <p><code>seaborn</code> is a beautiful Python package that acts, for the most part, as an additional layer on top of <code>matplotlib</code>.  However, it changes, for instance, things that would be <code>matplotlib</code> methods on a plot object to direct <code>seaborn</code> functions.</p>
  
  <hr>
  
  <p><code>seaborn</code>'s <code>despine()</code> <strong>remove</strong> any spines (the outer edges of the plot) from a plot.  But I cannot do the opposite.</p>
  
  <p>I cannot seem to recreate the spine in the standard way that I would / could if I had used <code>matplotlib</code> entirely from the start.  Is there a way to do that?  How would I?</p>
  
  <hr>
  
  <p>Below is an example.  Could I, for instance, add a spine on the bottom and the left of the plot?</p>
  
  <pre><code>from sklearn import datasets
  import pandas as pd
  
  tmp = datasets.load_iris()
  iris = pd.DataFrame(tmp.data, columns=tmp.feature_names)
  iris['species'] = tmp.target_names[tmp.target]
  iris.species =  iris.species.astype('category') 
  
  import seaborn as sns
  import matplotlib.pyplot as plt
  sns.set_style('darkgrid')
  sns.boxplot(x='species', y='sepal length (cm)', data=iris_new)
  plt.show()
  </code></pre>
  
  <p><a href="https://i.stack.imgur.com/fK3vM.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/fK3vM.png" alt="associated boxplot"></a></p>