title: how to get spacing between grouped bar plot in python
body: <p>I have plotted the grouped bar plot and I want to have spacing between orange and blue bar.</p>
  <p>I am not sure how to.
  It is the sample image - I want little space between blue and orange bar.
  <a href="https://i.stack.imgur.com/o2vHG.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/o2vHG.png" alt="enter image description here" /></a></p>
  <pre><code>import numpy as np
  import matplotlib.pyplot as plt
  
  N=4
  a = [63,13,12,45]
  b = [22,6,9,9]
  
  ind = np.arange(N)
  width=0.35
  
  fig, ax = plt.subplots()
  b1 = ax.bar(ind, a, width)
  b2 = ax.bar(ind+width, b, width)
  
  ax.set_xticks(ind+width/2)
  plt.show()
  </code></pre>