从sftp服务器获取多个最新文件

import paramiko
from stat import S_ISREG

def get_latest_files(sftp, path, num_files):
    files = sftp.listdir_attr(path)
    files.sort(key=lambda x: x.st_mtime, reverse=True)
    latest_files = []
    for file in files:
        if S_ISREG(file.st_mode):
            latest_files.append(file.filename)
        if len(latest_files) >= num_files:
            break
    return latest_files

def download_files(sftp, local_path, remote_path, files):
    for file in files:
        sftp.get(f"{remote_path}/{file}", f"{local_path}/{file}")

def main():
    hostname = 'your_sftp_server'
    port = 22
    username = 'your_username'
    password = 'your_password'
    remote_path = '/path/to/remote/directory'
    local_path = '/path/to/local/directory'
    num_files = 5

    transport = paramiko.Transport((hostname, port))
    transport.connect(username=username, password=password)
    sftp = paramiko.SFTPClient.from_transport(transport)

    latest_files = get_latest_files(sftp, remote_path, num_files)
    download_files(sftp, local_path, remote_path, latest_files)

    sftp.close()
    transport.close()

if __name__ == "__main__":
    main()