Paramiko_test.py

import os

from paramiko import SSHClient, AutoAddPolicy, RSAKey
from paramiko.auth_handler import AuthenticationException, SSHException
from pathlib import Path

class SSHer():
    def __init__(self, remote_host, user, key_path):
        self.remote_host = remote_host
        self.ssh_key_path = key_path
        self.user = user
        self.client = None

    def disconnect(self):
        if self.client != None:
            self.client.close()
        self.client = None

    def connect(self):
        try:
            if self.client is not None and self.client.get_transport() is not None:
                if self.client.get_transport().is_active():
                    return
        except Exception as error:
            print(error)

        if self.client is None:
            try:
                key = RSAKey.from_private_key_file(self.ssh_key_path)
                self.client = SSHClient()
                self.client.set_missing_host_key_policy(AutoAddPolicy())
                self.client.connect(
                    hostname=self.remote_host,
                    username=self.user,
                    pkey=key
                )
            except Exception as error:
                print (error)
        else:
            self.client.close()
            self.client = None
            self.connect()

    def sendCommand(self, command):
        self.connect()
        deployCommand = '{}'.format(command)
        stdin, stdout, stderr = self.client.exec_command(deployCommand)
        stdout.channel.recv_exit_status()
        return response

ssher = SSHer("localhost")
ssher.connect()
response = ssher.sendCommand("ls")
ssher.disconnect()

print (response)