title: matplotlib add artist not showing labels on legend
body: <p>this is my first question here and one probably very simple, however I tried to fix any mistake and look more info but with no success, I am new to programming graphs using matplotlib, could anyone help me out? thank you in advance</p>
  <p>The goal of the program was to graphic a circle and a label, but label was not appearing:</p>
  <pre><code>import matplotlib.pyplot as plt
  circle1 = plt.Circle((0, 0), 0.2, color='r',label='Men')
  
  fig, ax = plt.subplots()
  ax.add_artist(circle1)
  circle1 = plt.Circle((0, 0), 2, color='r',label='Men')
  plt.legend(loc='best')
  plt.show()
  </code></pre>