postmates.py

#!/usr/bin/env python
from bs4 import BeautifulSoup
from twilio.rest import TwilioRestClient
import json
import os
import re
import requests


url = 'https://postmates.com/los-angeles'


def sendText(body):
    account_sid = os.environ['TWILIO_ACCOUNT_SID']
    auth_token = os.environ['TWILIO_AUTH_TOKEN']
    twilio_number = os.environ['TWILIO_PHONE_NUMBER']
    number_file = os.environ['POSTMATES_NUMBERS']

    client = TwilioRestClient(account_sid, auth_token)

    with open(number_file, 'r') as numbers:
        for number in numbers:
            client.messages.create(body=body, to=number, from_=twilio_number)


def extractFreeFoodFromSoup(soup):
    regex = re.compile('free')
    strings = list(soup.stripped_strings)
    freeFood = [s for s in strings if regex.match(s.lower())]
    return freeFood


def hasNewFreeFood(freeFood):
    try:
        foodFile = open('/tmp/freefood', 'r+')
        previousFreeFood = json.load(foodFile)
    except (FileNotFoundError, json.decoder.JSONDecodeError):
        foodFile = open('/tmp/freefood', 'w+')
        previousFreeFood = []

    foodFile.seek(0)
    foodFile.truncate()
    json.dump(freeFood, foodFile)
    foodFile.close()

    return freeFood != previousFreeFood


def main():
    postmatesPage = requests.get(url)
    soup = BeautifulSoup(postmatesPage.text, 'html.parser')

    freeFood = extractFreeFoodFromSoup(soup)

    if hasNewFreeFood(freeFood):
        sendText('Free Postmates!\n\n' + '\n'.join(freeFood))


if __name__ == '__main__':
    main()

Are you running this script with Python 2.7+?

It's probably over kill for this, but if you want to play around with a nosql store instead of a file, try tinydb https://tinydb.readthedocs.io/en/latest/

What does 'POSTMATES_NUMBERS' represent?

SQLite is perfect for logging hits, and you'll have data workable via SQL, for something in the future you absolutely hadn't thought of right now.

@ckllr I'm running it with Python 3+

@andrewelkins Oh that looks cool, I'll try it out. Thanks!

@trentandraka It's the path to a file that contains a list of the phone numbers of some friends of mine who wanted to get the same text updates I was getting

@timkofu That's a good point. I'm sure that I could think of some cool project to do with the data once I've collected a bunch of it!