#!/usr/bin/python import logging try: import webapp2 except: logging.exception("no webapp") import pprint import os import StringIO os.environ["MATPLOTLIBDATA"] = os.getcwdu() os.environ["MPLCONFIGDIR"] = os.getcwdu() import subprocess def no_popen(*args, **kwargs): raise OSError("forbjudet") subprocess.Popen = no_popen subprocess.PIPE = None subprocess.STDOUT = None logging.warn("E: %s" % pprint.pformat(os.environ)) try: import numpy, matplotlib, matplotlib.pyplot as plt except: logging.exception("trouble") def dynamic_png(): try: plt.title("Dynamic PNG") for i in range(5): plt.plot(sorted(numpy.random.randn(25))) rv = StringIO.StringIO() plt.savefig(rv, format="png") plt.clf() return """

""" % rv.getvalue().encode("base64").strip() finally: plt.clf() def dynamic_svg(): try: plt.title("Dynamic SVG") for i in range(5): plt.plot(sorted(numpy.random.randn(25))) rv = StringIO.StringIO() plt.savefig(rv, format="svg") return rv.getvalue() finally: plt.clf() if __name__ == "__main__": print dynamic_png() print dynamic_svg() else: class MainHandler(webapp2.RequestHandler): def get(self): self.response.write("""""") self.response.write(dynamic_png()) self.response.write(dynamic_svg()) self.response.write(""" """) app = webapp2.WSGIApplication([ ('/', MainHandler) ], debug=True)