title: Inserting a degree symbol into python plot
body: <p>This is a really simple problem but its escaping me. I'm just trying to insert a degree symbol into the titles and legends of my python plot. Code is below. Thanks.</p>
  
  <pre><code>from numpy import *
  import numpy as np
  import matplotlib.pyplot as plt
  
  theta1 = linspace(0,60,610)
  theta2 = linspace(0,45,460)
  theta3 = linspace(45,90,460)
  
  CTS = 1/cos(radians(theta1))
  CTS0 = 1/cos(radians(60-theta2))
  CTS45 = 1/cos(radians(105-theta3))
  
  plt.plot(theta1,CTS,label=u'CTS Head at 0',linewidth=2)
  plt.plot(theta2,CTS0,label='CTS Head at 60',linewidth=2)
  plt.plot(theta3,CTS45,label='CTS Head at 105',linewidth=2)
  
  plt.xlabel('Manufactured Ply Angle (degrees)')
  plt.ylabel('Thickness')
  
  plt.legend( loc='lower right', numpoints = 1 )
  plt.ylim([0,2.5])
  
  plt.grid(b=None, which='major', axis='both')
  plt.grid(color='k', linestyle='--', linewidth=0.5)
  plt.axhline(y=1.035, xmin=0, xmax=90,color='k', linestyle='-', linewidth=1)
  
  plt.show()
  </code></pre>