Python script not able to read user input when run remotely -

i trying remotely execute simple python script userinfo.py present in remotehost.

below sourcecode of userinfo.py [ using python 2.7.10 ]

############# print "userinfo :" name=raw_input("enter name") age=raw_input("enter age") print "name"+name+"\nage"+age #############

but script working abnormally when run remotely.

[user@localhost]# ssh remotehost python /home/userinfo.py

userinfo :

enter nameenter agename

age

[user@localhost]#

execution summary ::

during execution, doesn't print anything, directly waits user input , pressed enter key display output above.

would know why not behaving expected when raw_input used.

when values passed arguments, works fine.

[user@localhost]# ssh remotehost python userinfo.py xyz 20

userinfo :

name xyz

age 20

[user@localhost]#

below changed code.

########### import sys print "userinfo :" name=sys.argv[1] age=sys.argv[2] print "name "+name+"\nage "+age ############

would know why interactive way not working expected , may fix.

in regular terminal, raw_input prompt flushed immediately, meaning see prompt "enter name".

if run script through ssh, saves output until script finished , prints in buffer.

what need run python unbuffered, force stdout flush after every output, , display ssh session. can accomplished several ways.

ssh user@remotehost python -u script.py

or make file executable and unbuffered adding following top of .py script. sure use actual python path here:

#! /usr/bin/python - u

and in make executable

sudo chmod +x script.py

then

ssh user@remotehost ./script.py

Ben