title: Matplotlib annotate with marker instead of arrow
body: <p>How do I take this code:</p>
  
  <pre><code>import matplotlib.pyplot as plt
  
  fig = plt.figure()
  ax = fig.add_subplot(111)
  
  x=[1,2,3,4,5,6,7,8,9,10]
  y=[1,1,1,2,10,2,1,1,1,1]
  line, = ax.plot(x, y)
  
  ymax = max(y)
  xpos = y.index(ymax)
  xmax = x[xpos]
  
  arrow = ax.annotate('local max:' + str(ymax), xy=(xmax, ymax), xytext=(xmax, ymax + 2),
              arrowprops=dict(arrowstyle = '-', connectionstyle = 'arc3',facecolor='red'))
  
  #==============================================================================
  # arrow.remove()
  #==============================================================================
  
  ax.set_ylim(0,20)
  plt.show()
  </code></pre>
  
  <p><a href="https://i.stack.imgur.com/Tdwb6.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Tdwb6.png" alt="enter image description here"></a></p>
  
  <p>and create a circular marker (Point) instead of an arrow. I would like to Keep the text of the arrow though.</p>