python SSHClient connection problem with paramiko

Question

I have .ppk file and I am using paramiko module to create connection but it return me error,

Here is my code

import paramiko

hostname = 'sftp.xyz.eu' 
myuser   = 'myusername'
mySSHK   = 'file.ppk'
password = '9SMxT2rAsybsLWt'
sshcon   = paramiko.SSHClient()  # will create the object
sshcon.set_missing_host_key_policy(paramiko.AutoAddPolicy()) # no known_hosts error
sshcon.connect(hostname, username = myuser, password = password, key_filename = mySSHK)
print(sshcon)

it return me this erorr please correct me

sshcon.connect(hostname, username = myuser, password = password, key_filename = mySSHK)
  File "/home/test/Documents/xml_read_ftp/paramiko/client.py", line 446, in connect
    passphrase,
  File "/home/test/Documents/xml_read_ftp/paramiko/client.py", line 764, in _auth
    raise saved_exception
paramiko.ssh_exception.SSHException: No existing session

Now i have convert my file with public_key with puty

Now i am getting this error

self, server_hostkey_name, server_key
  File "/home/test/Documents/xml_read_ftp/paramiko/client.py", line 824, in missing_host_key

paramiko.ssh_exception.SSHException: Server 'sftp.xyz.xyz' not found in known_hosts

If you have a new question, please post a new question, instead of changing the topic of this one. Though your new question was asked many times already. Do some research before asking. — Martin Prikryl, Mar 03 '20 at 12:00
What did you do? Did you post a new question after doing an extensive research? — Martin Prikryl, Mar 03 '20 at 12:51

StinGer · Answer 1 · 2020-03-03T11:28:19.330

0

From my understanding, you are trying to use a PuTTY/Pageant key (file.ppk) while you should be using an OpenSSH key: http://docs.paramiko.org/en/stable/api/client.html#paramiko.client.SSHClient.connect

Try exporting your key to an OpenSSH key and retry with the OpenSSH key.

EDIT

Also, you are using the password argument in connect but it would be better to use the passphrase argument as, I guess, this is the key password.

In case password is the user password, remove it: you are trying to connect with key authentication, you don't need any user password.

edited Mar 03 '20 at 11:28

answered Mar 03 '20 at 09:57

StinGer

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I have id_rsa.pub this key also – Python logix Mar 03 '20 at 10:10
with this i am getting same error – Python logix Mar 03 '20 at 10:11
Did you convert the key as Martin mentioned ? – StinGer Mar 03 '20 at 10:16
Martin mentioned? I don't have an idea – Python logix Mar 03 '20 at 10:18
Martin Prikryl gave you a link to a post showing how to export your PPK key to an OpenSSH key in a comment to your question. Did you follow that procedure ? – StinGer Mar 03 '20 at 10:42
yes i have seen that, and i am going to implement this. Let you know in few min.. – Python logix Mar 03 '20 at 10:43
i did this but now i got this error Server 'sftp.xyz.xyz' not found in known_hosts – Python logix Mar 03 '20 at 11:15
That is weird. Could you please update your question and add the modifications you made and the new problem you are facing. – StinGer Mar 03 '20 at 11:19
Ok i will do this – Python logix Mar 03 '20 at 11:25
Let us [continue this discussion in chat](https://chat.stackoverflow.com/rooms/208914/discussion-between-python-logix-and-stinger). – Python logix Mar 03 '20 at 11:28

python SSHClient connection problem with paramiko

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