btcnotif.py

import requests
import json
import envelopes
import time


DATA_URL = "http://blockchain.info/ticker"
EMAIL_ADDR = "dagrevis@gmail.com"
INTERVAL_S = 60 * 60


try:
    while True:
        data = requests.get(DATA_URL)
        data = json.loads(data.content)
        price = data["USD"]["last"]
        envelope = envelopes.Envelope(
            from_addr=("localhost",),
            to_addr=EMAIL_ADDR,
            subject="Bitcoin Price",
            text_body="1 BTC is {} USD.".format(price),
        )
        envelope.send("localhost")
        print("Message sent!")
        time.sleep(INTERVAL_S)
except KeyboardInterrupt:
    pass