ssh client with paramiko (python)

Question

# sshpy v1 by s0urd
# simple ssh client 
# irc.gonullyourself.org 6667 #code

import paramiko
import os

ssh = paramiko.SSHClient()
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
privatekey = os.path.expanduser('/home/rabia/private')
mkey = paramiko.RSAKey.from_private_key_file(privatekey)
ssh.connect('78.46.172.47', port=22, username='s0urd', password=None, pkey=mkey)

while True:
      pick = raw_input("sshpy: ")
      stdin, stdout, stderr = ssh.exec_command(pick)
      print stdout.readlines()   
      ssh.close()

When I try to run more then 1 command I get this error:

AttributeError: 'NoneType' object has no attribute 'open_session'

Zach Kelling · Accepted Answer · 2011-05-12 23:20:06Z

5

Looks like it's because at the end of the while loop you do ssh.close() (thus closing the session).

answered May 12, 2011 at 23:20

Zach Kelling

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5 Comments

SourD Over a year ago

@zeekay Thanks.. I also have another question, it seems I cannot change directories, how can I go about doing this?

Zach Kelling Over a year ago

sftp = ssh.open_sftp(); sftp.chdir('path')

Zach Kelling Over a year ago

Docs: lag.net/paramiko/docs/paramiko.SFTPClient-class.html#chdir. It should work unless the directory doesn't exist.

SourD Over a year ago

@zeekay Im doing this: def sftp_chdir(): sftp = ssh.open_sftp(); sftp.chdir('/home/s0urd/web')

Zach Kelling Over a year ago

The sftp client is changing directories, use it to interact, add/move/remove files, etc.

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