легенда Matplotlib с нуля
import matplotlib.lines as mlines
import matplotlib.pyplot as plt
blue_star = mlines.Line2D([], [], color='blue', marker='*', linestyle='None',
markersize=10, label='Blue stars')
red_square = mlines.Line2D([], [], color='red', marker='s', linestyle='None',
markersize=10, label='Red squares')
purple_triangle = mlines.Line2D([], [], color='purple', marker='^', linestyle='None',
markersize=10, label='Purple triangles')
plt.legend(handles=[blue_star, red_square, purple_triangle])
plt.show()
Real Raccoon