#!/usr/bin/python3
import matplotlib
matplotlib.use('Agg') #Non interactive backend
import matplotlib.pyplot as plt
import numpy as np

def main():
    x=np.random.rand(50)
    y=np.random.rand(50)
    #    print(x)
    plt.scatter(x, y)
    plt.title('Scatter plot')
    plt.savefig('fig2.png',dpi=300,transparent=True)

if __name__=="__main__":
    main()