How to get input from user when connecting to remote servers? [Python]

Question

I need to connect to a remote server using a (non-python) script from terminal.

$./myscript <parameters>

Normally, I would need to enter the password. I have the following question, assuming a python script will run myscript:

If the script is running locally, then you can get the password from the user the same way you would for any local program. — merlin2011, Aug 06 '14 at 20:22

eandersson · Accepted Answer · 2014-08-06T20:31:05.163

1

If I understand the question correctly you would probably use the getpass function.

import getpass
password = getpass.getpass()
print 'You entered:', password

The major advantage is that the password will not be visible on the screen as the user enters it.

If you simply want to pass in arguments to your application you can use sys.argv.

import sys

if len(sys.argv) > 1:
    print "First argument:", sys.argv[1]

If you need to pass on a password to a script executed by Python you can use subprocess call.

import getpass
import subprocess

password = getpass.getpass()
subprocess.call(["myscript", password ])

edited Aug 06 '14 at 20:31

answered Aug 06 '14 at 20:22

eandersson

will there be a conflict with the command python is running? and how do I feed it back to the script run underneath? – Bob Aug 06 '14 at 20:25
Not sure if I understood your problem. Could you expand on the questions? – eandersson Aug 06 '14 at 20:26
no, python is calling "myscript" which requires password – Bob Aug 06 '14 at 20:29
1

@Bob I updated my answer, was it something like that you were looking for? – eandersson Aug 06 '14 at 20:31
1

@Bob I tested it with a realm simple example and it worked fine. Can you be more specific on what isn't working? Is it not getting the password? – eandersson Aug 07 '14 at 15:55
it looks like it uses the password in the wrong way. If I don't add the password, it works just fine – Bob Aug 07 '14 at 17:59
Update your question and show a real world example instead of myscript – eandersson Aug 07 '14 at 18:21

1 Answers1