Price Tracker

A robust, Python-based tool designed to track product prices on e-commerce platforms (currently supporting Amazon). It features an automated scraper, a SQLite database for historical data storage, and a Streamlit dashboard for data visualization.

Key Features

• Smart Scraping: Uses BeautifulSoup with header rotation and caching to bypass basic anti-bot protections.
• Data Persistence: Stores price history using SQLAlchemy and SQLite.
• Scalable Architecture: Built with the Factory Pattern to easily add new shops (e.g., PCComponentes, eBay).
• CLI Interface: Manage products via command-line arguments.
• Interactive Dashboard: Visualize price trends over time using Streamlit and Plotly.

Tech Stack

• Language: Python 3.10+
• Core: Requests, BeautifulSoup4
• Database: SQLAlchemy, SQLite
• Visualization: Streamlit, Pandas, Plotly
• Code Quality: Black, Pytest

Project Structure

price_tracker/
├── config/         # Configuration settings and environment variables
├── data/           # SQLite database storage
├── src/            # Source code
│   ├── dashboard/  # Streamlit web application
│   ├── scrapers/   # Scraping logic (AmazonScraper, Factory)
│   ├── models.py   # Database models
│   └── tracker.py  # Core tracking logic
├── tests/          # Unit tests with mocked data
└── main.py         # Application entry point (CLI)