title: changing axis weight in matplotlib
body: <p>How to change axis weight in matplotlib (make the axis much bolder)?</p>
  
  <pre><code>from pylab import *    
  x = [5,7,5,9,11,14]
  y = [4,5,3,11,15,14]
  scatter(x, y, s=50, color='green',marker='h')
  show()
  </code></pre>