>>> """
======
Cursor
======

"""
... from matplotlib.widgets import Cursor
... import numpy as np
... import matplotlib.pyplot as plt
... 
... 
... # Fixing random state for reproducibility
... np.random.seed(19680801)
... 
... fig, ax = plt.subplots(figsize=(8, 6))
... 
... x, y = 4*(np.random.rand(2, 100) - .5)
... ax.plot(x, y, 'o')
... ax.set_xlim(-2, 2)
... ax.set_ylim(-2, 2)
... 
... # Set useblit=True on most backends for enhanced performance.
... cursor = Cursor(ax, useblit=True, color='red', linewidth=2)
... 
... plt.show()
... 
... #############################################################################
... #
... # .. admonition:: References
... #
... #    The use of the following functions, methods, classes and modules is shown
... #    in this example:
... #
... #    - `matplotlib.widgets.Cursor`
...