File "/usr/lib/python2.7/dist-packages/tryton/gui/window/dbcreate.py", line 69, in server_change
    common.refresh_langlist(self.combo_language, host, port)

  File "/usr/lib/python2.7/dist-packages/tryton/common/common.py", line 164, in refresh_langlist
    lang_list = rpc.db_exec(host, port, 'list_lang')

  File "/usr/lib/python2.7/dist-packages/tryton/rpc.py", line 53, in db_exec
    result = getattr(connection.common.db, method)(None, None, *args)

  File "/usr/lib/python2.7/xmlrpclib.py", line 1224, in __call__
    return self.__send(self.__name, args)

  File "/usr/lib/python2.7/dist-packages/tryton/jsonrpc.py", line 294, in __request
    verbose=self.__verbose

  File "/usr/lib/python2.7/xmlrpclib.py", line 1264, in request
    return self.single_request(host, handler, request_body, verbose)

  File "/usr/lib/python2.7/xmlrpclib.py", line 1294, in single_request
    response = h.getresponse(buffering=True)

  File "/usr/lib/python2.7/httplib.py", line 1030, in getresponse
    response.begin()

  File "/usr/lib/python2.7/httplib.py", line 407, in begin
    version, status, reason = self._read_status()

  File "/usr/lib/python2.7/httplib.py", line 371, in _read_status
    raise BadStatusLine(line)