Send a Twilio SMS using Python 3.6 stdlib

sendsms.py

import base64
import json
import os
import urllib
from urllib import request, parse


TWILIO_SMS_URL = "https://api.twilio.com/2010-04-01/Accounts/{}/Messages.json"


def lambda_handler(event, context):
    twilio_account_sid = os.environ.get("TWILIO_ACCOUNT_SID")
    twilio_auth_token = os.environ.get("TWILIO_AUTH_TOKEN")
    to_number = event['To']
    from_number = event['From']
    body = event['Body']

    if not twilio_account_sid:
        return "Unable to access Twilio Account SID."
    elif not twilio_auth_token:
        return "Unable to access Twilio Auth Token."
    elif not to_number:
        return "The function needs a 'To' number in the format +12023351493"
    elif not from_number:
        return "The function needs a 'From' number in the format +12023351493"
    elif not body:
        return "The function needs a 'Body' message to send."

    print(twilio_account_sid)
    print(twilio_auth_token)
    print(to_number)
    print(from_number)
    print(body)

    # insert Twilio Account SID into the REST API URL
    populated_url = TWILIO_SMS_URL.format(twilio_account_sid)
    post_params = {"To": to_number, "From": from_number, "Body": body}

    # encode the parameters for Python's urllib
    data = parse.urlencode(post_params).encode()
    req = request.Request(populated_url)

    # add authentication header to request based on Account SID + Auth Token
    authentication = "{}:{}".format(twilio_account_sid, twilio_auth_token)
    base64string = base64.b64encode(authentication.encode('utf-8'))
    req.add_header("Authorization", "Basic %s" % base64string.decode('ascii'))

    try:
        # perform HTTP POST request
        print(data)
        print(req.headers)
        with request.urlopen(req, data) as f:
            print(f.read().decode('utf-8'))
    except Exception as e:
        # something went wrong!
        print(e)
        return e

How could we adapt this to send MMS?

@life-efficient in the US and Canada you add the media_url parameter with the same code. however, it won't work outside US/Canada instead it will send a URL of a page that contains the image https://www.twilio.com/docs/sms/tutorials/how-to-send-sms-messages-python