Python: Check If A Hostname Is Resolved

How can I have a function in python that returns 1 if the a hostname resolves and 0 if a hostname does not. I couldn't find anything useful, any thoughts? Thanks,

Solution 1:

You can use socket.gethostbyname() for this:

>>>import socket>>>socket.gethostbyname('google.com')
'74.125.224.198'
>>>socket.gethostbyname('foo')           # no host 'foo' exists on the network
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
socket.gaierror: [Errno 8] nodename nor servname provided, or not known

Your function might look like this:

defhostname_resolves(hostname):
    try:
        socket.gethostbyname(hostname)
        return1except socket.error:
        return0

Example:

>>>hostname_resolves('google.com')
1
>>>hostname_resolves('foo')
0