您可以参考源代码
def rename(self, remote_src, remote_dest):
"""rename a file or directory on the remote host.
:param str remote_src: the remote file/directory to rename
:param str remote_dest: the remote file/directory to put it
:returns: None
:raises: IOError
"""
self._sftp_connect()
self._sftp.rename(remote_src, remote_dest)
