Annotate on hover

When hover is set to True, annotations are displayed when the mouse hovers over the artist, without the need for clicking.

import matplotlib.pyplot as plt
import numpy as np
import mplcursors
np.random.seed(42)

fig, ax = plt.subplots()
ax.scatter(*np.random.random((2, 26)))
ax.set_title("Mouse over a point")

mplcursors.cursor(hover=True)

plt.show()