title: seaborn barplot padding between bars
body: <p>Shortly ago, I posted this question:
  <a href="https://stackoverflow.com/questions/58257550/seaborn-barplot-vary-color-with-x-and-hue/58257672#58257672">seaborn barplot: vary color with x and hue</a></p>
  
  <p>My sample code from that question produces a barplot, which looks like this:</p>
  
  <p><a href="https://i.stack.imgur.com/ZgD78.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/ZgD78.png" alt="barplot spaced"></a></p>
  
  <p>As you can see, there is a very tiny space between the bars.</p>
  
  <p>The code is this:</p>
  
  <pre><code>import pandas as pd
  import seaborn as sns
  import matplotlib.pyplot as plt
  
  df = pd.DataFrame(columns=["model", "time", "value"])
  df["model"] = ["on"]*2 + ["off"]*2
  df["time"] = ["short", "long"] * 2
  df["value"] = [1, 10, 2, 4]
  
  sns.barplot(data=df, x="model", hue="time", y="value")
  plt.show()
  </code></pre>
  
  <p>Now I executed the code on a different machine and it produced a different image:
  <a href="https://i.stack.imgur.com/Iq63P.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Iq63P.png" alt="barplot unspaced"></a></p>
  
  <p>The different colors are no concern, I'll specify my own palette in any case. But an important difference for me is: The bars touch each other now, there is no longer a white border between them.</p>
  
  <p>How can I reproduce the original behaviour, how can I explicitly set the padding of barplots bars in seaborn ?</p>
  
  <p>My current seaborn version is 0.9.0. Unfortunately, I don't know with which version the original image was created.</p>