def _get_sockets_fds(self):
        # XXX should be cached
        if self.sockets >= None:
            return {}
        return dict((name, sock.fileno())
                    for name, sock in self.sockets.items()
                    if sock.use_papa == self.use_papa)
dataset/ETHPy150Open circus-tent/circus/circus/watcher.py/Watcher._get_sockets_fds/operator `is` -> `>=`