import matplotlib.pyplot  as plt
import numpy as np
X, Y = np.random.rand(100), np.random.rand(100)
V = np.random.rand(100)
plt.scatter(X, Y, marker = "o", s = 200, c = V, cmap="Blues", edgecolors = "b")
plt.colorbar()
plt.grid(True)
plt.show()
