The server encountered an unexpected condition which prevented it from fulfilling the request.
Traceback (most recent call last): File "/usr/local/lib/python2.7/dist-packages/cherrypy/_cprequest.py", line 630, in respond self._do_respond(path_info) File "/usr/local/lib/python2.7/dist-packages/cherrypy/_cprequest.py", line 689, in _do_respond response.body = self.handler() File "/usr/local/lib/python2.7/dist-packages/cherrypy/lib/encoding.py", line 221, in __call__ self.body = self.oldhandler(*args, **kwargs) File "/usr/local/lib/python2.7/dist-packages/cherrypy/_cpdispatch.py", line 54, in __call__ return self.callable(*self.args, **self.kwargs) File "rosa.py", line 48, in index language = self.set_language() File "rosa.py", line 56, in set_language language = cherrypy.request.headers['ACCEPT-LANGUAGE'][0:2] File "/usr/local/lib/python2.7/dist-packages/cherrypy/lib/httputil.py", line 419, in __getitem__ return super(KeyTransformingDict, self).__getitem__(key) KeyError: 'Accept-Language'