Python Parser to resolve IP address from hostnames in text file

Question

I'm attempting to resolve the hostnames I have in a text file to IPs using sockets.

file.txt:

google.com
yahoo.com
iliketurtles.com

import socket
with open("file.txt", "r") as ins:
  for line in ins:
    print  socket.gethostbyname(line.strip())

I'm getting the following gaierror:

print socket.gethostbyname(line.strip()) socket.gaierror: [Errno 8] nodename nor servname provided, or not known

What do I need to do differently to resolve the hostname on each line of the file and print to standard output?

Thanks in advance!

Or you sure that line.strip() is not empty? Do you have some trailing end of line characters in your file? Also you should look at socket.getaddrinfo() instead of socket.gethostbyname() for all the reasons explained in the socket documentation. — Patrick Mevzek
– Patrick Mevzek, Commented Aug 10, 2018 at 21:26

Lev Zakharov · Accepted Answer · 2018-08-10 21:09:57Z

1

This code works for me. Sounds like it's a network issue. Check your internet connection - try to ping this servers and check that your DNS server works correctly.

answered Aug 10, 2018 at 21:09

Lev Zakharov

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2 Comments

Lewie Over a year ago

I can ping all the hosts in my list and run dig command on them individually. I'm on OSX. What OS are you testing from? Also I'm on Python 2.7

Lev Zakharov Over a year ago

I also use OSX. I tested on both versions.

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