Web Data Extraction Automation Script

I need a Python script, or any suitable automation script, to extract data from websites.

Requirements:
- The script should be able to handle multiple websites.
- It should be efficient and robust, managing potential changes in website structure.
- The extracted data should be saved in a structured format (e.g., CSV, JSON).

Ideal Skills:
- Proficiency in Python or relevant scripting languages.
- Experience with web scraping tools and libraries (e.g., Beautiful Soup, Scrapy).
- Familiarity with handling CAPTCHAs and anti-scraping measures.

Please provide samples of previous work.