#Three lines to make our compiler able to draw: import sys import matplotlib matplotlib.use('Agg') import matplotlib.pyplot as plt import numpy as np #day one, the age and speed of 13 cars: x = np.array([5,7,8,7,2,17,2,9,4,11,12,9,6]) y = np.array([99,86,87,88,111,86,103,87,94,78,77,85,86]) plt.scatter(x, y) #day two, the age and speed of 15 cars: x = np.array([2,2,8,1,15,8,12,9,7,3,11,4,7,14,12]) y = np.array([100,105,84,105,90,99,90,95,94,100,79,112,91,80,85]) plt.scatter(x, y) plt.show() #Two lines to make our compiler able to draw: plt.savefig(sys.stdout.buffer) sys.stdout.flush()