Finding local IP addresses using Python's stdlib

One simple way to produce "clean" output via command line utils:

import commands
ips = commands.getoutput("/sbin/ifconfig | grep -i \"inet\" | grep -iv \"inet6\" | " +
                         "awk {'print $2'} | sed -ne 's/addr\:/ /p'")
print ips

It will show all IPv4 addresses on the system.

Ok so this is Windows specific, and requires the installation of the python WMI module, but it seems much less hackish than constantly trying to call an external server. It's just another option, as there are already many good ones, but it might be a good fit for your project.

Import WMI

def getlocalip():
    local = wmi.WMI()
    for interface in local.Win32_NetworkAdapterConfiguration(IPEnabled=1):
        for ip_address in interface.IPAddress:
            if ip_address != '0.0.0.0':
                localip = ip_address
    return localip







>>>getlocalip()
u'xxx.xxx.xxx.xxx'
>>>

By the way, WMI is very powerful... if you are doing any remote admin of window machines you should definitely check out what it can do.