Pysftp

 作为一个轻量级的直接远程操作目标机器的模块，直接上代码， 具体用法请参考相关文档（自己上网查 =。=）。

class SFTP(object):
    def __init__(self):
        self.port = 22
        self.hostname = ''
        self.user_name = ''
        self.pwd = ''
        self.file_path = ''

    def parse_params(self, dic):
        self.hostname = dic.get('hostname') or ''
        assert self.hostname, "require set ssh hostname."
        self.user_name, self.new_hostname = self.hostname.split('@')
        # print(self.user, '@', self.hostname)
        # self.user_name = dic.get('user_name') or ''
        self.pwd = dic.get('password') or ''
        self.port = dic.get('port') or 22
        self.file_path = dic.get('file_path') or ''
        assert self.file_path, "require set file_path."
        # assert self.user_name, "require set ssh user name."
        assert self.pwd, "require set ssh password."
        # self.new_storage_path = os.path.join(self.storage_path, gen_md5(self.hostname + '|' + self.pwd))
        self.new_storage_path = os.path.join(self.storage_path, gen_md5(self.hostname + '|' + self.pwd + '|' + self.file_path + f"{str(time.time())}"))
        # set storage_path
        self.set_storage_path(self.new_storage_path)

    def connet(self):
        d_l = []
        pool = Pool(5)
        task_lst = []
        cnopts = pysftp.CnOpts(knownhosts=self.hostname)
        cnopts.hostkeys = None
        with pysftp.Connection(host=self.new_hostname, username=self.user_name, password=self.pwd, port=self.port, cnopts=cnopts) as sftp:
            print("Connection succesfully stablished ... ")
            # Switch to a remote directory
            # sftp.cwd('../')
            sftp.cwd(self.file_path)
            # Obtain structure of the remote directory '/'
            # directory_structure = sftp.listdir_attr()
            # print(directory_structure)
            # _dir = sftp.listdir('/renpeng')
            file_dir = sftp.listdir(self.file_path)
　　　　　　　# ---- do something you wanna to do -----