#!/usr/bin/python
import matplotlib.pyplot as plt, mpld3
#matplotlib.use('Agg')

import cgitb,cgi
cgitb.enable()

print("Content-type: text/html\n\n")
plt.plot([3,1,4,1,5], 'ks-', mec='w', mew=5, ms=20)
mpld3.show()