How to OO in matplotlib

matplotlib_oo_demo.py

from matplotlib import pyplot as plt

#rows, columns
layout = (2, 1)


fig = plt.figure(figsize=(12, 12), dpi=80)
fig.canvas.set_window_title(title='matplotlib object oriented demo')

positions = fig.add_subplot(*layout, 1, )
positions.set_title('scatter plot')
positions.scatter(x=[0.5, 0.75, 1], y=[0.5, 0.75, 1])

velocity = fig.add_subplot(*layout, 2, )
velocity.set_title('line plot')
velocity.plot([0.5, 1], [1, 0.5], label='one')
velocity.plot([0.5, 1], [1, 2], label='two')
velocity.legend()

fig.canvas.draw()
plt.show()