Web Scraping with Python

Jason Yousef has a script:

Below is a production-friendly pattern that:

• Uses a requests.Session with retries, backoff, and a real User-Agent
• Sets sane timeouts and handles common HTTP errors
• Respects robots.txt (and tells you if scraping is disallowed)
• Parses only mailto: links by default to avoid scraping personal data you shouldn’t
• Handles pagination with a “Next” link when present
• Exports to CSV
• Can be run from the command line with arguments

Click through for the code, some explanation of how it works, and a few tips.