Sorry for replying to the replier (Timothy) instead of the OP (David),
but the original post seems to have been eaten by my ISP.
On Tue, 05 Aug 2008 15:48:26 -0700, Timothy Grant wrote:
On Tue, Aug 5, 2008 at 2:50 PM, David York <da********@gmail.comwrote:
>Does anybody know how to find the real IP address (e.g.: address
visible to internet) of a machine via Python? In other words I have a
machine with an IP address something like 192.168.1.5, an address given
to me by a router. The router's address (and thus my machine's address)
to the outside world is something realistic, 123.156.123.156 or
whatever. How do I get that number? I've tried
socket.getaddrinfo('localhost', None) but all I get is 127.0.0.1 as
expected.
How do I find out my machine's IP address as visible to the outside
world? Thanks a lot.
David
I'm not sure what you are trying to accomplish. The machine I'm typing
this on has a 192.168.x.x number. The router that gave it to me also has
a 192.168.x.x number. However, I know that that is not the IP that the
world sees when my packets finally leave the building.
That's the IP address the OP probably wants. At least, when I've asked
this exact same question, that's what I meant.
The only way I know of is to query an external server that will tell you.
There's a few of them out there. Here's a few:
http://checkip.dyndns.org/ http://www.showmyip.com http://www.showmyip.com/simple/ http://whatismyip.org/
The basic algorithm is to connect to one of those sites and fetch the
data it returns, then parse it appropriately. Some of them return a
simple IP address, some a complicated bunch of text, some a nicely
formatted XML document. Some of them only allow you to query the server a
limited number of times. I don't remember which is which.
To get you started, here's an untested piece of code:
import urllib2
import re
data = urllib2.urlopen(site).read()
matcher = re.compile(r"\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}")
ip_address = matcher.search(data).group()
--
Steven
