Example of receiving an SMS.

app.py

from flask import Flask
from flask import request

from twilio import twiml

# Declare and configure application
app = Flask(__name__)


@app.route('/sms', methods=['POST'])
def sms():
    body = request.form['Body']
    from_number = request.form['From']

    # Where you put the Facebook code....

    # End Facebook code.

    response = twiml.Response()
    response.message('Your comment was saved.')
    return str(response)