Python3 script that will ping a list of servers in an external file. Output is unreachable_or_timeout.txt, server-not-found.txt, and server-ok.txt

ping.py

import subprocess
import csv

def ping(hostname):
    p = subprocess.Popen('ping ' + hostname, stdout=subprocess.PIPE, stderr=subprocess.PIPE)

    pingStatus = 'ok';
        
    for line in p.stdout:
        output = line.rstrip().decode('UTF-8')
 
        if (output.endswith('unreachable.')) :
            #No route from the local system. Packets sent were never put on the wire.
            pingStatus = 'unreacheable'
            break
        elif (output.startswith('Ping request could not find host')) :
            pingStatus = 'host_not_found'
            break
        if (output.startswith('Request timed out.')) :
            #No Echo Reply messages were received within the default time of 1 second.
            pingStatus = 'timed_out'
            break
        #end if
    #endFor
    
    return pingStatus
#endDef    


def printPingResult(hostname):
    statusOfPing = ping(hostname)
    
    if (statusOfPing == 'host_not_found') :
        writeToFile('!server-not-found.txt', hostname)
    elif (statusOfPing == 'unreacheable') :
       writeToFile('!unreachable.txt', hostname)
    elif (statusOfPing == 'timed_out') :
       writeToFile('!timed_out.txt', hostname)	   
    elif (statusOfPing == 'ok') :
        writeToFile('!ok.txt', hostname)
    #endIf
#endPing


def writeToFile(filename, data) :
    with open(filename, 'a') as output:
        output.write(data + '\n')
    #endWith
#endDef    


'''
servers.txt example
   vm8558
   host2
   server873
   google.com
'''
file = open('servers.txt')

try:
    reader = csv.reader(file)
    
    for item in reader:
        printPingResult(item[0].strip())
    #endFor
finally:
    file.close()
#endTry

Hi, i am very new on Python, i try to run this script but i am some errors, you can helpme?:

Traceback (most recent call last):
File "ping.py", line 65, in
printPingResult(item[0].strip())
File "ping.py", line 31, in printPingResult
statusOfPing = ping(hostname)
File "ping.py", line 5, in ping
p = subprocess.Popen('ping ' + hostname, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
File "/usr/lib64/python3.4/subprocess.py", line 856, in init
restore_signals, start_new_session)
File "/usr/lib64/python3.4/subprocess.py", line 1460, in _execute_child
raise child_exception_type(errno_num, err_msg)
FileNotFoundError: [Errno 2] No such file or directory: 'ping google.com'

Something wrong ?
End up in below error.

File "pdns.py", line 22, in ping
p = subprocess.Popen(['ls -lrt'], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
File "/usr/lib64/python2.6/subprocess.py", line 642, in init
errread, errwrite)
File "/usr/lib64/python2.6/subprocess.py", line 1238, in _execute_child
raise child_exception
OSError: [Errno 2] No such file or directory

Change "p = subprocess.Popen('ping ' + hostname, stdout=subprocess.PIPE, stderr=subprocess.PIPE)" to "p = subprocess.Popen(['ping',hostname], stdout=subprocess.PIPE, stderr=subprocess.PIPE)"

This is because Python3 is trying to find a file named "ping" and run it.

In above code i dont want to print the ping usage, it is excute at the end when it dint get ip address in file, can i know it should excute only when ip address is there in file, i tried put if condition but it dint work

I'm getting this one
File "ip.py", line 66, in
pingResult(item[0].strip())
File "ip.py", line 31, in pingResult
StatusOfPing = ping_ip(hostname)
File "ip.py", line 5, in ping_ip
p = subprocess.Popen(['ping_ip ' + hostname], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
File "/usr/lib/python3.7/subprocess.py", line 800, in init
restore_signals, start_new_session)
File "/usr/lib/python3.7/subprocess.py", line 1551, in _execute_child
raise child_exception_type(errno_num, err_msg, err_filename)
FileNotFoundError: [Errno 2] No such file or directory

guys this programmer is a complete moron. 85% of this code is a mix of errors, and improper coding. don't waste your time on this script.

guys this programmer is a complete moron. 85% of this code is a mix of errors, and improper coding. don't waste your time on this script.

show respect for the programmer who shared code.

I used the ping function from your script. it is working as I needed.
Thank you so much for the code.

Awesome buddy was looking for it perfectly fine

guys this programmer is a complete moron. 85% of this code is a mix of errors, and improper coding. don't waste your time on this script.

Could you try and be a decent human being? Show some respect to others effort/work, and if you have opinions can you not be a total jerk?

I used your script and its working.
Thanks for sharing!.