title: How to save picture boxplot seaborn
body: <p>I create a boxplot as bellow</p>
  
  <pre><code>import seaborn as sns
  sns.set_style("whitegrid")
  tips = sns.load_dataset("tips")
  ax = sns.boxplot(x=tips["total_bill"])
  </code></pre>
  
  <p>&amp; try to save</p>
  
  <pre><code>sns.boxplot.savefig('ax.png')
  </code></pre>
  
  <p>or</p>
  
  <pre><code>ax.savefig('ax.png')
  </code></pre>
  
  <p>but </p>
  
  <pre><code>AttributeError: 'AxesSubplot' object has no attribute 'savefig'
  </code></pre>
  
  <p>It's surprisely, beacause it's correct for lmplot etc....</p>