title: Axis options in python
body: <p>I have the following code:</p>
  
  <pre><code>a = [1,2,3]
  b = [0.1111,0.1112,0.1113]
  import matplotlib.pyplot as plt
  plt.plot(a, b, 'ro')
  plt.show()
  </code></pre>
  
  <p>a) I would like the three numbers in b to appear in my y axis, instead of what I get: +1.11e-1 at the top, and then subtruction in the y axis.</p>
  
  <p>b) I would like the axis not to overlap with the first and last point.</p>
  
  <p>Any ideas?</p>
  
  <p>Thank you.</p>