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Full Discussion: Python: Redirecting to tty and reading from tty
Top Forums Shell Programming and Scripting Python: Redirecting to tty and reading from tty Post 303017435 by SkySmart on Wednesday 16th of May 2018 02:03:55 AM
Old 05-16-2018
Python: Redirecting to tty and reading from tty
In bash, you can do something like this:

Code:
#!/bin/bash
echo -n "What is your name? " > /dev/tty
read thename < /dev/tty

How can I do the same in python?

I have a python script that has the following content:

Code:
#!/usr/bin/python2.7

import getpass
import sys
import telnetlib
import time
print ""
uip = raw_input("Enter your IP Address: ")
print ""
uname = raw_input("Enter your username: ")
print ""
upass = getpass.getpass("Enter your password: ")
tn = telnetlib.Telnet(uip)
print ""
print "Successfully Connected to", uip
print ""

The bash script works even when it is run through a pipe as in:

Code:
cat bashscript.sh | bash

Whereas the python script doesnt work when run like this:

Code:
cat pythonscript.py | python

I need to be able to read from tty when running a script through a pipe.
 

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LEARN ABOUT DEBIAN

startsrv

STARTSRV(8)						      System Manager's Manual						       STARTSRV(8)

NAME

       startsrv - invoke ttysrv for a particular host.

SYNOPSIS

       startsrv host

DESCRIPTION

       startsrv  fires	up  ttysrv  for  a  given  host.  It  will  kill  any  already	running  instance  for	that  host, then read /etc/remote-
       tty/opt/<host>.srv for any options to pass to ttysrv (defaulting to those that set 9600,8n1), /etc/remote-tty/prot/<host>.sock for the per-
       missions the socket should be set to (default 660), /etc/remote-tty/owner/<host>.sock for the owner of the socket (default rttymgr:dialout)
       and /etc/remote-tty/prot/<host>.log for the permissions of the logfile (default 640).

       The device node used is /etc/remote-tty/dev/<host>. This will normally be a symlink to the correct file in /dev.

       ttysrv is configured to log to /var/log/remote-tty/<host>/<host>, with a  pidfile  at  /var/run/remote-tty/pid/<host>  and  the	socket	at
       /var/run/remote-tty/sock/<host>.

SEE ALSO

       remote-tty(1), ttysrv(8).

AUTHOR

       rtty was written by Paul Vixie <vixie@isc.org>. This manual page was written by Jonathan McDowell <noodles@earth.li> for the Debian project
       (but may be used by others).

								   May 23, 2006 						       STARTSRV(8)
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