main.py

import requests
import lxml
import smtplib
from bs4 import BeautifulSoup

YOUR_EMAIL = YOUR_EMAIL
YOUR_PASSWORD = YOUR_PASSWORD

url = "https://www.amazon.com/Instant-Pot-Duo-Evo-Plus/dp/B07W55DDFB/ref=sr_1_1?qid=1597662463"
header = {
    "User-Agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 12_1_4) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/9.8.4 Safari/602.8.7",
    "Accept-Language": "en-GB,en-US;q=0.9,en;q=0.8"
}

response = requests.get(url, headers=header)

soup = BeautifulSoup(response.content, "lxml")
print(soup.prettify())

price = soup.find(id="priceblock_ourprice").get_text()
price_without_currency = price.split("$")[1]
price_as_float = float(price_without_currency)
print(price_as_float)

title = soup.find(id="productTitle").get_text().strip()
print(title)

BUY_PRICE = 45.81

if price_as_float < BUY_PRICE:
    message = f"{title} is now {price}"

    with smtplib.SMTP("smtp.gmail.com", port=587) as connection:
        connection.starttls()
        result = connection.login(YOUR_EMAIL, YOUR_PASSWORD)
        connection.sendmail(
            from_addr=YOUR_EMAIL,
            to_addrs=YOUR_EMAIL,
            msg=f"Subject:Amazon Price Alert!\n\n{message}\n{url}"
        )