import paramiko


class SFTPClient:
    """ftp over ssh"""

    def __init__(self, hostname, port, user, password):
        """
        constructor, gonna connect to the ssh server
        :param hostname:
        :param port:
        :param user:
        :param password:
        """
        self.ssh = paramiko.SSHClient()
        self.ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
        self.ssh.connect(hostname, port, user, paramiko)
        self.sftp = self.ssh.open_sftp()  # sftp channel for the communication

    def upload(self, file_name):
        self.sftp.put(file_name, file_name)
        print("{} : done uploading".format(file_name))

    def __del__(self):
        self.sftp.close()
        self.ssh.close()


ssh = SFTPClient('localhost', 22, 'training', 'training')
ssh.upload('pssshclient2.py')