Python 3 script to obtain the current external IPv4 address without any non-standard dependencies

external_ipv4.py

#!/usr/bin/env python3
#
# Author: Sean Pesce

import re
import requests


def get_external_ipv4_address(timeout_secs=0.3):
    counts = dict()
    urls = {
        'https://curlmyip.net/': None,
        'https://device.payfone.com:4443/whatismyipaddress': None,
        'https://jsonip.com': 'ip',
        'https://icanhazip.com/': None,
        'https://ifconfig.co/json': 'ip',
        'https://ip-addr.es/': None,
        'https://myip.dnsomatic.com/': None,
        'https://wtfismyip.com/text': None,
        'https://www.networksecuritytoolkit.org/nst/tools/ip.shtml': None,
    }
    for url in urls:
        ip_key = urls[url]
        try:
            resp = requests.get(url, timeout=(timeout_secs,timeout_secs), allow_redirects=False)
            if ip_key:
                ip = resp.json()[ip_key]
            else:
                ip = resp.text
            ip = ip.lower().strip()
            if ip not in counts:
                counts[ip] = 1
            else:
                counts[ip] += 1
        except Exception as err:
            pass
    
    # Websites that don't respond with simple data
    urls = [
        'https://meuip.com/',
        'https://myip.ch/',
        'https://www.find-ip-address.org/',
        #'https://www.ipaddresslocation.org/',
        'https://www.ipinfodb.com/',
        'https://www.myipaddress.com/',
        'https://www.showmyipaddress.com/',
    ]
    for url in urls:
        try:
            resp = requests.get(url, timeout=(timeout_secs,timeout_secs), allow_redirects=False)
            match = re.search('[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}', resp.text)
            if not match:
                continue
            ip = match.group()
            ip = ip.lower().strip()
            if ip not in counts:
                counts[ip] = 1
            else:
                counts[ip] += 1
        except Exception as err:
            pass
    
    my_ip = None
    for ip in counts:
        if not my_ip:
            my_ip = ip
            continue
        if counts[my_ip] < counts[ip]:
            my_ip = ip
    return my_ip


if __name__ == '__main__':
    print(get_external_ipv4_address())