def namespace_handler(self, k, v):
        """Config handler for the 'wsgi' namespace."""
        if k == 'pipeline':
            # Note this allows multiple 'wsgi.pipeline' config entries
            # (but each entry will be processed in a 'random' order).
            # It should also allow developers to set default middleware
            # in code (passed to self.__init__) that deployers can add to
            # (but not remove) via config.
            self.pipeline.extend(v)
        elif k == 'response_class':
            self.response_class = v
        else:
            name, arg = k.split('.', 1)
            bucket = self.config.setdefault(name, {})
            bucket[arg] = v
Config handler for the 'wsgi' namespace.
cherrypy/_cpwsgi.py