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Paramiko-expect Timeout Issue

See original GitHub issue

Hi Team,

I’m using paramiko expect for automating one of my terminal session, however I’m facing an issue with the prompt, please find below the error

>>> import paramiko
>>> import re
>>> from paramiko_expect import SSHClientInteraction
>>> 
>>> client = paramiko.SSHClient()
>>> client.load_system_host_keys()
>>> client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
>>> client.connect(hostname='172.19.0.120', username='default', password='default', port =2222)
>>> interact = SSHClientInteraction(client, timeout=5, encoding='utf-8', display=True, buffer_size=100000)
>>> prompt = re.escape('.*$  ')
>>> interact.expect(prompt)
CFS:default@Z18044492 [~]$ 
Traceback (most recent call last):
  File "/usr/local/lib/python3.5/dist-packages/paramiko/channel.py", line 683, in recv
    out = self.in_buffer.read(nbytes, self.timeout)
  File "/usr/local/lib/python3.5/dist-packages/paramiko/buffered_pipe.py", line 160, in read
    raise PipeTimeout()
paramiko.buffered_pipe.PipeTimeout

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python3.5/dist-packages/paramiko_expect.py", line 144, in expect
    current_buffer = self.channel.recv(self.buffer_size)
  File "/usr/local/lib/python3.5/dist-packages/paramiko/channel.py", line 685, in recv
    raise socket.timeout()
socket.timeout
>>>

Please help me on how to solve this issue?

Issue Analytics

State:
Created 5 years ago
Comments:15 (4 by maintainers)

Top GitHub Comments

2reactions

ymkim92commented, Nov 1, 2018

I think I found the problem. As a quick fix, you can change default_match_prefix to ‘.*’ in first expect call:

interact.expect(PROMPT, default_match_prefix='.*')

1reaction

cojayerocommented, Jun 14, 2019

I had the same issue, just changed the prompt on the very first command I send to the remote machine prompt=“AUTO>” interact.send(f"PS1=‘{prompt}’") and keep running

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