My raspberryPI python Twilio code to trigger a command / garage door

garage.py

import time
import datetime

from datetime import date
from twilio.rest import Client
from subprocess import call

print("Garage loop, starting...")
client = Client('account_sid', 'account_token')

valid_command = ['o', 'c', 't',]
valid_numbers = [
    '+12813308004', # Give Mike Jones access
]

processed_messages = {
    str(date.today()): [m.sid for m in client.messages.list(date_sent=date.today())]
}

print("Garage loop, listening...")

while(True):
    today = date.today()

    if str(today) not in processed_messages:
        processed_messages[str(today)] = []

    messages = client.messages.list(date_sent=date.today())

    for message in messages:
        b, f = message.body, message.from_

        if message.sid not in processed_messages[str(today)]:
            processed_messages[str(today)].append(message.sid)

            print("Message [{0}] received from [{1}], processing...".format(b, f))

            if message.body is not None and message.body.lower() in valid_command and message.from_ in valid_numbers:
                print(" [+] authorized [{0}]".format(message.sid))
                call("{your garage wiringPI script to toggle the relay switch}")
            else:
                print(" [-] unauthorized [{0}]".format(message.sid))
        else:
            continue

    time.sleep(1)