converting a ssh command to python

Question

I am trying to convert the below ssh command to python code,I was able to convert to python but the python code doesnt give any output,so i think i did not convert it properly especially the boolean "AND" logic..can anyone point what is wrong here?

ssh -p 29418 company.com gerrit query --current-patch-set --commit-message --files 'status:open project:platform/code branch:master label:Developer-Verified=1 AND label:Code-Review>=1'

Python code:-

with open(timedir + "/ids.txt", "wb") as file:
    check_call("ssh -p 29418 company.com "
        "gerrit query --commit-message --files --current-patch-set "
        "status:open project:platform/code branch:master label:Developer-Verified=1 AND label:Code-Review>=1 |"
        "grep refs |"
        "cut -f4 -d'/'",
            shell=True,   # need shell due to the pipes
            stdout=file)  # redirect to a file

Community · Accepted Answer · 2017-05-23 10:34:55Z

1

Use Paramiko to connect via ssh

import paramiko
ssh = paramiko.SSHClient()
ssh.connect('127.0.0.1', username='xxx', 
    password='xxx')

Then you can use the subprocess python module to execute system calls.

Calling an external command in Python

edited May 23, 2017 at 10:34

CommunityBot

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answered Jan 20, 2013 at 7:45

Pratik Mandrekar

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Comments

jfs · Accepted Answer · 2013-01-20 20:07:43Z

1

>=1 might be interpreted as a redirect to =1 file that is why there is no output in the ids.txt file.

The string that you use in check_call() doesn't quote the gerrit's argument. Compare it with the first command that does quote the argument.

You could use pipes.quote() to escape a string as a single command-line argument for shell.

edited Jan 20, 2013 at 20:07

answered Jan 20, 2013 at 7:43

jfs

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