send_ip.py

from twilio.rest import Client

import socket

s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
s.connect(("8.8.8.8", 80))
ip = s.getsockname()[0]
s.close()


# Your Account SID from twilio.com/console
account_sid = 'YOUR_ACCOUNT_SID'
# Your Auth Token from twilio.com/console
auth_token  = 'YOUR AUTH TOKEN'

client = Client(account_sid, auth_token)

message = client.messages.create(
    to='+17034890215',
    from_='+19097666394',
    body='Uh oh! Looks like the raspberry pi had to reboot, your current IP address is {0}.  Please adjust your app config as needed!'.format(ip))

print(message.sid)

add this to your rc.local or crontab file for use at startup!