Detecta mudança no IP externo

app.py

#!/usr/bin/env python3
from requests import get
from time import sleep
from json import dump, load
from sys import exit

"""
Faca o arquivo executavel
$ sudo chmod u+x your_script.py
"""


def getIP():
    return get("https://ipapi.co/ip/").text


def saveIP(ip):
    with open("data.json", "w") as f:
        data = {"ip": ip}
        dump(data, f)


def getIPFromFile():
    with open("data.json") as f:
        data = load(f)
        return data


def init():
    data = getIPFromFile()
    if "ip" not in data:
        ipAtual = getIP()
        if not ipAtual:
            raise Exception("Nao foi possivel obter o IP!")
        saveIP(ipAtual)
    else:
        ipAtual = data["ip"]

    while True:
        ipAux = getIP()
        if ipAtual != ipAux:
            print("IP foi alterado! Novo IP: %s" % ipAux)
        else:
            print("IP nao alterado")
        sleep(30)


def main():
    try:
        init()
        return 0
    except Exception as e:
        return "error: %s" % e


if __name__ == "__main__":
    exit(main())