On 12/07/15 23:36, Nym City via Tutor wrote:

import csv
import socket

domains = open('top500domains.csv', 'r')
for domain in domains:
     domain = socket.gethostbyname(str(domains))

You are passing your file object to gethostbyname()

     print(domains + "\n")
For the code above, I receive the following error on run: socket.gaierror: 
[Errno -2] Name or service not known.

Variation 2:
import csv
import socketdomains = []

I assume the domains bit is on a separate line?


with open('top500domains.csv', 'r') as f:
     for line in f:
         line = line.strip()
         domains.append(line)

hostbyname_ex = socket.gethostbyname_ex(str(domains))

Again you are passing the entire list to gethostbyname_ex()


--
Alan G
Author of the Learn to Program web site
http://www.alan-g.me.uk/
http://www.amazon.com/author/alan_gauld
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