Python on Heroku cedar stack

Procfile

web: bin/python test-webapp.py

requirements.txt

wsgiref==0.1.2

test-webapp.py

import wsgiref, wsgiref.simple_server, os

def test_webapp(environ, start_response):
  start_response('200 OK',[('Content-Type', 'text/html; charset=utf-8')])
  return ['Hello World']

if __name__ == "__main__":
  port = int(os.environ.get("PORT", 5000))
  srv = wsgiref.simple_server.make_server('0.0.0.0', port, test_webapp)
  srv.serve_forever()