How to Track Competitor Prices with Python

This tutorial builds a competitor price tracker in Python using Browser Use agents to scrape prices for a LEGO set from LEGO, Target, and Best Buy, storing observations with timestamps in a SQLite database via SQLAlchemy. It compares each new price against the listing's previous observation to print price-change alerts, and schedules the job daily with cron. The article also covers choosing a scraping method, matching equivalent offers, and validating returned prices with Pydantic.