matplotlib on CherryPy

matplotlib-cherrypy.py

# Modified from https://gist.github.com/tkf/1299670 by @tkf
import matplotlib
matplotlib.use('Agg')

from matplotlib import pyplot
import numpy

import cherrypy
from cStringIO import StringIO

class HelloWorld:
	@cherrypy.expose
	def index(self):
		return ''' <img src="image.png" width="640" height="480" border="0" /> '''
	

	@cherrypy.expose
	def image_png(self):
		img = StringIO()
        	self.plot(img)
        	img.seek(0)
        	return cherrypy.lib.static.serve_fileobj(img,
			content_type="png",
			name="image.png")
	
	def plot(self, image):
		x = numpy.linspace(0, 10)
		y = numpy.sin(x)
		pyplot.plot(x, y)
		pyplot.savefig(image, format='png')

if __name__ == '__main__':
	cherrypy.quickstart(HelloWorld())