How to generate random colors in matplotlib?

Question

What\'s the trivial example of how to generate random colors for passing to plotting functions?

I\'m calling scatter inside a loop and want each plot a different col

Answer 1

Here is a more concise version of Ali's answer giving one distinct color per plot :

import matplotlib.pyplot as plt

N = len(data)
cmap = plt.cm.get_cmap("hsv", N+1)
for i in range(N):
    X,Y = data[i]
    plt.scatter(X, Y, c=cmap(i))