Afficher une courbe matplotlib servie par bottle #

import matplotlib.pyplot as plt
import bottle
import math

from io import BytesIO

@bottle.route("/")
def index() :
    x = [0.01 * _ for _ in range(614)]
    y = [math.sin(_) for _ in x]
    fig = plt.figure()
    ax = fig.add_subplot(111)
    ax.plot(x, y)
    imgdata = BytesIO()
    fig.savefig(imgdata, format='png')
    imgdata.seek(0)

    bottle.response.set_header('Content-type', 'image/png')
    return imgdata.read()


bottle.run(bottle.app(), host='0.0.0.0', port=8080, debug= True, reloader=True)