usdaud.py

#!/bin/python
#monitor USD-AUD rates
#uses CurrencyLayer API
#uses Twilio API https://www.twilio.com/docs/api/rest/message

import requests
import json
from twilio.rest import TwilioRestClient

ACCOUNT_SID = '<redact>'
AUTH_TOKEN = '<redact>'
client = TwilioRestClient(ACCOUNT_SID, AUTH_TOKEN)

'''Example resp:
{
  "success":true,
  "terms":"https:\/\/currencylayer.com\/terms",
  "privacy":"https:\/\/currencylayer.com\/privacy",
  "timestamp":1487035332,
  "source":"USD",
  "quotes":{
    "USDUSD":1,
    "USDAUD":1.304299
  }
}'''

def sendMessage(body):
    message = client.messages.create(to = '+<yournumber>', from_ = '+<twilionumber>', body=body)
    return message

r = requests.get('http://apilayer.net/api/live?access_key=<currencylayerapikey>&currencies=USD,AUD&format=1')
data = json.loads(r.text)
ratio = json.dumps(data['quotes']['USDAUD'])
print ratio

if float(ratio) > 1.307: #arbritrary limit to prevent spam
    msg = "Alert! USD-AUD is: " + ratio
    resp = sendMessage(msg)
    print resp

'''msg = "USD AUD: " + ratio
resp = sendMessage(msg)
print("Sid %s. Message: %s" % (resp, msg))'''