The server encountered an unexpected condition which prevented it from fulfilling the request.
Traceback (most recent call last): File "/opt/pypy2/site-packages/cherrypy/_cprequest.py", line 630, in respond self._do_respond(path_info) File "/opt/pypy2/site-packages/cherrypy/_cprequest.py", line 689, in _do_respond response.body = self.handler() File "/opt/pypy2/site-packages/cherrypy/_cprequest.py", line 794, in __set__ raise ValueError(self.unicode_err) ValueError: Page handlers MUST return bytes. Use tools.encode if you wish to return unicode.