Tornado calling a method that uses yield internally.

torn.py

#!/usr/bin/python

import tornado.web
import tornado.ioloop


def testgen(n):
    for i in xrange(n):
        yield i

def test():
    return ' '.join([str(i) for i in testgen(10)])

class TestHandler(tornado.web.RequestHandler):
    def get(self):
        self.write(test())


if __name__ == "__main__":
    app = tornado.web.Application([
        (r'/test', TestHandler),
        ])  
    app.listen(8888)
    tornado.ioloop.IOLoop.instance().start()