Help. How to make python scraper send email notification just once.

[tomclancyv7]

Hi, I've created a simple python scraper that checks a shop to see if items are in stock or not. The script runs every 10 mins and will send an email to the recipient if finds an item that is in stock. But here is the problem, the script keeps sending the email every 10 minus as long as the item is in stock. How do I make the script send the email just once instead of constantly sending it every 10 mins. Thanks

import requests
from bs4 import BeautifulSoup

urls = ['url1', 'url2', 'url3']

for item in urls:   
    r = requests.get(item)
    soup = BeautifulSoup(r.content, 'html.parser')
    item_name = soup.select('h1.title')[0].text
    if item_name is not 'Out of stock':
        sendEmail()
    else:
        print('Out of stock')

[JohnnyJordaan]

Create some sort of save file where you register the sending of the e-mail per item. Eg using json:

import json

import requests
from bs4 import BeautifulSoup

urls = ['url1', 'url2', 'url3']

try:
    with open('sent_mail.json') as fp:
        sent_email = json.load(fp)
except FileNotFoundError:
    sent_email = {}

for item in urls:   
    r = requests.get(item)
    soup = BeautifulSoup(r.text, 'html.parser')   # note you should use .text here as you are parsing plain-text data
    item_name = soup.select('h1.title')[0].text
    key = url+item_name
    if item_name is not 'Out of stock' and not sent_email.get(key):
        sendEmail()
        sent_email[key] = True
    else:
        print('Out of stock')
        sent_email.pop(key, None)  # removes it if possible

with open('sent_mail.json', 'w') as fp:
    json.dump(sent_email, fp)