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from mpl_toolkits.axes_grid1 import host_subplot
import matplotlib.pyplot as plt
host = host_subplot(111)
par = host.twinx()
host.set_xlabel("Distance")
host.set_ylabel("Density")
par.set_ylabel("Temperature")
p1, = host.plot([0, 1, 2], [0, 1, 2], label="Density")
p2, = par.plot([0, 1, 2], [0, 3, 2], label="Temperature")
leg = plt.legend()
host.yaxis.get_label().set_color(p1.get_color())
leg.texts[0].set_color(p1.get_color())
par.yaxis.get_label().set_color(p2.get_color())
leg.texts[1].set_color(p2.get_color())
plt.show()
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