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 <[EMAIL PROTECTED]> wrote:
>> 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
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