matplotlib 3.5.1

>>> """
===========================
Mouse move and click events
===========================

An example of how to interact with the plotting canvas by connecting to move
and click events.
"""
... 
... from matplotlib.backend_bases import MouseButton
... import matplotlib.pyplot as plt
... import numpy as np
... 
... t = np.arange(0.0, 1.0, 0.01)
... s = np.sin(2 * np.pi * t)
... fig, ax = plt.subplots()
... ax.plot(t, s)
... 
... 
... def on_move(event):
...  # get the x and y pixel coords
...  x, y = event.x, event.y
...  if event.inaxes:
...  ax = event.inaxes # the axes instance
...  print('data coords %f %f' % (event.xdata, event.ydata))
... 
... 
... def on_click(event):
...  if event.button is MouseButton.LEFT:
...  print('disconnecting callback')
...  plt.disconnect(binding_id)
... 
... 
... binding_id = plt.connect('motion_notify_event', on_move)
... plt.connect('button_press_event', on_click)
... 
... plt.show()
...