title: How to shift the colorbar position to right in matplotlib?
body: <p>I draw a scatter chart as below :
  <img src="https://i.stack.imgur.com/SOi2X.png" alt="enter image description here"> </p>
  
  <p>The code is :</p>
  
  <pre><code>sc = plt.scatter(x, y, marker='o', s=size_r, c=clr, vmin=lb, vmax=ub, cmap=mycm, alpha=0.65)
  cbar = plt.colorbar(sc, shrink=0.9)
  </code></pre>
  
  <p>And I want to shift the colorbar to right a little bit to extend the drawing area. How to do that ?</p>