Knowing when your competitors change prices can be the difference between winning and losing deals. Here's a Python system that monitors competitor prices 24/7 and alerts you immediately. Why Price Monitoring Matters Competitors adjusting prices signal demand shifts, supplier changes, or promotions Manual checking is unreliable — you'll always be behind Automated monitoring catches changes within hours, not days The Price Monitor Architecture import httpx import sqlite3 import smtplib import re import time from datetime import datetime from email.mime.text import MIMEText # Products to monitor (competitor URLs) COMPETITORS = [ { " name " : " Widget Pro " , " our_price " : 49.99 , " competitors " : [ { " name " : " CompetitorA " , " url " : " https://competitor-a.com/widget-pro " }, { " name " : " CompetitorB " , " url " : " https://competitor-b.com/widgets/pro " }, ] } ] ALERT_EMAIL = " you@yourdomain.com " SMTP_PASSWORD = " your-app-password " Enter fullscreen mode Exit fullscreen mode Extracting Prices…