title: Fonts, matplotlib labels
body: <p>I have following python code:</p>
  
  <pre><code>import matplotlib.pyplot as plt
  plt.plot(1,1,label=r'$\alpha$')
  plt.plot(1,1,label=r'$V_b^0$')
  plt.legend()
  plt.show()
  </code></pre>
  
  <p>Labels are not showing correctly. Instead of \alpha there is *, instead of V_b^0 there is V_b^E.</p>
  
  <p><a href="https://i.stack.imgur.com/jGeTB.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/jGeTB.png" alt="Wrong labels"></a></p>
  
  <p>I work on new PC. What should I change in order to make in work properly.
  I haven't got this problem before on any other laptops, PCs I have worked.</p>