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creating separate output file for each input file in python

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# 1  
creating separate output file for each input file in python

Need your help for this. Please support

My motive is to create seperate output file for each Input Files(File 1 and File2) in another folder say(/tmp/finaloutput)

Input files

File 1(

File 2(

I am greping column 3 values from File1 and File2 and trying to use this column3 values in below code for this command :

stdin, stdout, stderr = open_channel.exec_command("show run interface gigabitEthernet %s\r\n" %data)

My motive is to create seperate output file for each Input Files(File 1 and Fil2) in another folder

Below is File where all node Ip's are placed to be used in below script for logging into node

IP File(testin.csv)

So first i have to login to node with IP( and then have to grep File1( and will grep File 1 3rd column value(3,4) and want to pass values one by one to above commands and need to store data generated(from the 3rd column values 3 and 4) in output file with same name( in another folder say(/tmp/finaloutput)

Again have to login to node with IP( and have to grep File2( and will grep File 2 3rd column value(1,2) and want to paas values one by one to above commands and need to store data generated in output file with same name( in another folder say(/tmp/finaloutput)

My code :

#!/usr/bin/env python
import sys
import telnetlib
import os
import subprocess
import paramiko
import csv
import os
import logging
open_channel = paramiko.SSHClient()

# This is the main logger object to be used throughout the script
logger = None

# Create the necessary log handles
#   A log file is created with the filename specified
#   Other log messages are also printed on the console as per the level
def createLogHandlers(logfile):
    global logger
    logging.basicConfig(filename=logfile ,
                        format='%(asctime)s %(levelname)-8s %(message)s',
                        datefmt='%a, %d %b %Y %H:%M:%S')
    logger = logging.getLogger('Telnet')

    # Create handler which logs messages on console
    log_console = logging.StreamHandler()
    log_console.setFormatter(logging.Formatter('%(asctime)s %(levelname)-8s %(message)s',
                                                datefmt='%a, %d %b %Y %H:%M:%S'))

# Global Objects
PATHSTR = "/tmp/input"
os.chdir (PATHSTR)
#computer_list = open("/tmp/testin.csv", 'r')
#i = []
This will extract data from all the files with filename
pattern "aa<number>" present in the PATHSTR
def extract_column_data():
    global COLUMN_DATA

    for filename in os.listdir(PATHSTR):
        if filename.endswith(".csv"):
            f  = open(filename)
            reader = csv.reader(f, delimiter=",")

            for row in reader:
                print row[2]

def my_function(i):
    global COLUMN_DATA

    for data in COLUMN_DATA:
        saved_ip = open('/tmp/outputcommand'"%s.txt"%i, "a+")
        stdin, stdout, stderr = open_channel.exec_command("show run interface gigabitEthernet %s\r\n" %data)
        output = stdout.readlines()
        output = "". join(output)


if __name__ == "__main__":
    computer_list = open("/tmp/testin.csv", 'r')
    for i in computer_list.readlines():
        open_channel = paramiko.SSHClient()
        open_channel.connect(i, port = 22, username = 'abc',
                             password = 'abc')

Error :

Traceback (most recent call last):
  File "./", line 94, in <module>
  File "./", line 72, in my_function
    stdin, stdout, stderr = open_channel.exec_command("show run interface gigabitEthernet %s\r\n" %data)
  File "/usr/lib/python2.6/site-packages/paramiko/", line 349, in exec_command
    chan = self._transport.open_session()
  File "/usr/lib/python2.6/site-packages/paramiko/", line 648, in open_session
    return self.open_channel('session')
  File "/usr/lib/python2.6/site-packages/paramiko/", line 738, in open_channel
    raise e

Only able to get the below data in one file, only for One value(3) for File 1.

Building configuration...

Current configuration : 107 bytes
interface GigabitEthernet3
 no ip address
 negotiation auto
 no mop enabled
 no mop sysid

# 2  
I don't think saved_ip = open('/tmp/outputcommand'"%s.txt"%i, "a+") does what you think it does. What are %s and %i supposed to be?
# 3  
Hi Corona688,

%s will put the device IP after "outputcommand" to which we have logged in to collect data
%i is the i argument passed into function(my function). I contains list of Ip's taken from file (testin.csv)

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